CN102710083B - Hybrid-excited brushless DC wind power generator - Google Patents
Hybrid-excited brushless DC wind power generator Download PDFInfo
- Publication number
- CN102710083B CN102710083B CN201210182902.2A CN201210182902A CN102710083B CN 102710083 B CN102710083 B CN 102710083B CN 201210182902 A CN201210182902 A CN 201210182902A CN 102710083 B CN102710083 B CN 102710083B
- Authority
- CN
- China
- Prior art keywords
- ring
- excitation
- shaped rotor
- stator
- encouraging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a wind power generator, in particular to a hybrid-excited brushless DC wind power generator, which solves a problem that a conventional brushless DC generator cannot be suitable for wind power generation due to excitation or reasonable structure for supplying excitation current. The wind power generator comprises a stator, a DC motor armature winding, a rotation shaft, and a main excitation permanent magnet pole and an auxiliary electromagnetic pole both arranged on the rotation shaft, as well as an excitation current supply unit of the auxiliary excitation electromagnetic pole, wherein the excitation current supply unit of the auxiliary excitation electromagnetic pole consists of a ring-shaped DC exciter and an excitation current providing unit of the ring-shaped DC exciter; the ring-shaped DC exciter consists of a ring-shaped rotor and DC excitation regulators both fixed on the rotating shaft; and each DC excitation regulator consists of a U-shaped iron core and an excitation coil wound thereon. The wind power generator is applicable to wind parks with larger area and wind farms where a plurality of wind power generators synchronously operate, and also can be taken as a motor used in high power and multiple variable-speed engineering equipment capable of regulating output moment.
Description
Technical field
The present invention relates to generator, particularly wind-driven generator, is specially a kind of mixing excitation brushless DC wind-driven generator.
Background technology
Wind power generation is one of the most rising regenerative resource form, for energy savings, protection of the environment with promote sustainable development and have important function.THE WIND ENERGY RESOURCES IN CHINA is abundant, along with the increasing of country to the support on policy of Wind Power Generation Industry and policy guidance dynamics, in recent years, China's wind-power market high speed development.And wind power generation machine technology is the key technology of this regenerative resource form, determined the quality of wind power motor group to grid supply quality, therefore people that a large amount of research work has been placed on to wind-driven generator is technical, wind-driven generator is along with the variation of several generations has been experienced in people's research.
First generation wind-driven generator is to adopt squirrel-cage asynchronism generator, stator gets access to grid, impeller is by the rotor of gearbox drawing generator, have simple in structure, working service convenient, the advantage such as with low cost, but need to be from electrical network absorbing reactive power, the power factor of electrical network is degenerated, in addition wind speed is required also harsh, can work wind speed interval narrow.
Second generation wind-driven generator is to adopt double-fed asynchronous generator.Stator gets access to grid, and in rotor-side, applies the torque that AC excitation is controlled generator.Frequency, the phase place of in the time of rotation speed change, controlling exciting current, can make stator current frequency stabilization.But double-fed asynchronous generator has slip ring and brush, increased workload and the cost of system maintenance.
Third generation wind-driven generator is to adopt permanent magnet generator, is generally that impeller is directly connected with the rotor of generator, and impeller rotor driven rotates, and cutting magnetic induction line produces electric power.Permanent magnet generator, owing to being permanent magnet excitation, does not have excitation loss, simple in structure, reliability is high.But the rotating speed of impeller generally changes, so the voltage and current that generator sends is unstable, at this time need to add at the outlet side of generator a powerful current transformer, increased undoubtedly cost.
Above-mentioned existing wind-driven generator all belongs to alternating current generator, and its armature winding is all three-phase alternating current symmetric winding.Have no at present DC generator (being that armature winding is the generator of armature of direct current motor winding) and, for wind power generation, also have no relevant bibliographical information.
In prior art, there is brushless DC generator (its armature winding is armature of direct current motor winding).Induced potential in the armature winding of brushless DC generator (alternation) be by rectifying device, change into galvanic.Armature of direct current motor winding has several armature winding conventionally, the number of winding can be the number (comprising 1) at aliquot 360 degree electric degree angles, during rectification, normally each armature winding connects a rectifying device, and the rotor-position signal that trigger control device sends according to rotor-position sensor is controlled the conducting order, the conducting moment, angle of flow of each rectifying device etc. and realized optimum direct current and export.
The excitation of brushless DC generator mainly contains two kinds of permanent magnet excitation and excitation winding excitations (also claiming electric excitation).
Because the rotor speed of wind-driven generator is unsettled, guarantee the stable of output voltage, must carry out excitation regulation.Although the DC generator of permanent magnet excitation has efficiency advantages of higher, cannot be for wind power generation because its excitation cannot regulate.
The brushless DC generator of electricity excitation can be realized excitation regulation easily.The supply of the exciting current of its excitation winding has two kinds of modes at present, a kind of is that the rectifying device being connected on electrical network provides exciting current by brush and slip ring to excitation winding, but exist system maintenance work amount large due to brush and slip ring, motor is short useful life, excitation is also easily subject to the impact of voltage ripple of power network simultaneously, thereby cause the fluctuation of output voltage, be difficult to adapt to the demand of wind power generation; Another kind is that the AC exciter coaxial with excitation winding is set in the rotating shaft of rotor, AC exciter provides exciting current by the rectifying device being arranged at equally in rotating shaft to excitation winding, system configuration is complicated like this, and rectifying device can bring harmonic wave, the adjustable range of its exciting current is relatively little simultaneously, is difficult to adapt to the demand that wind power generator exciting adjustable range is large.Owing to providing the structure of exciting current to have the problems referred to above and defect, therefore the brushless DC generator of existing electric excitation is not suitable for wind power generation yet.
Summary of the invention
The present invention solves existing brushless DC generator because of excitation or provides the structure of exciting current to exist defect cannot be applicable to the problem of wind power generation, and a kind of mixing excitation brushless DC wind-driven generator is provided.
The present invention adopts following technical scheme to realize: mixing excitation brushless DC wind-driven generator, comprise the armature of direct current motor winding on stator and stator, rotating shaft, the master who is arranged in rotating shaft encourages permanent-magnet pole, the rectifying device being connected with armature of direct current motor winding on stator; in rotating shaft, be also provided with the auxiliary electromagnetic pole of encouraging that phase place identical (be magnetic pole Relative position determination after position of magnetic pole identical) is installed with main number of magnetic poles of encouraging permanent-magnet pole and magnetic pole thereof, also comprise auxiliary exciting current generator of encouraging electromagnetic pole, auxiliary exciting current generator of encouraging electromagnetic pole comprise annular DC exciter and be arranged on stator or stator is outer and the direct voltage polarity of its output and size with field pole (main permanent-magnet pole and the auxiliary electromagnetic pole of encouraging of encouraging, be rotor) variation of the output voltage of rotating speed and this generator and the exciting current feedway of adjustable annular DC exciter, wherein annular DC exciter comprises and is fixed on the ring-shaped rotor that built up by ring-shaped silicon steel sheet in rotating shaft and along the equally distributed DC excitation adjuster of stator inner wall, on the outer ring of ring-shaped rotor, be evenly provided with outer groove, the inner ring of ring-shaped rotor is provided with and outer groove internal layer groove one to one, outer groove and the internal layer groove of each correspondence are wound with ring-shaped rotor armature winding, each ring-shaped rotor armature winding is together in series from beginning to end, be connected with auxiliary input of encouraging the excitation winding of electromagnetic pole, the inner ring of ring-shaped rotor covers and is fixed with the ring cowling of silicon steel sheet, each DC excitation adjuster comprises the U-iron heart being fixed on stator inner wall and is entangled in U-iron magnet exciting coil in the heart, the U-iron heart of DC excitation adjuster inserts ring-shaped rotor on one side and presses close to covering in the ring cowling of ring-shaped rotor inner ring, each DC excitation adjuster U-iron magnet exciting coil is in the heart together in series, be connected with the output of the exciting current feedway of annular DC exciter, the coiling of U-iron magnet exciting coil in the heart and connection mode will guarantee that one side of U-iron heart insertion ring-shaped rotor is same magnetic polarity (be all the N utmost point or be all the S utmost point).During this wind-driven generator work, its rotating shaft (son) is dragged by wind-force, collection wind speed or magnetic pole (rotor) rotating speed, generator output voltage signal flow to the exciting current feedway of annular DC exciter, the exciting current feedway of annular DC exciter is determined polarity and the size of annular DC exciter exciting current If according to wind speed, generator output voltage, thereby determined auxiliary polarity and size of encouraging the exciting current Ia of electromagnetic pole, thereby the output voltage of regulator generator.When wind speed is lower or during the load of generator large (output voltage is lower), the exciting current feedway of annular DC exciter provides the exciting current If of the positive polarity of growth to annular DC exciter, the exciting current Ia that annular DC exciter is exported the positive polarity of growth gives the auxiliary electromagnetic pole of encouraging, the auxiliary electromagnetic pole of encouraging will provide and lead and encourage the equidirectional magnetic flux of permanent-magnet pole magnetic flux, to improve the induced potential of armature of direct current motor winding, output voltage is improved; When wind speed is higher or during the load of generator less (output voltage is higher), the exciting current If of the positive polarity that the exciting current feedway of annular DC exciter provides to annular DC exciter reduces, thereby the auxiliary exciting current Ia that encourages electromagnetic pole positive polarity is reduced, output voltage is reduced; Load high especially when wind speed or generator is especially little, and when reducing the auxiliary exciting current Ia that encourages electromagnetic pole positive polarity and be also not enough to steady output voltage, the exciting current feedway of annular DC exciter provides the exciting current If of negative polarity to annular DC exciter, the annular DC exciter exciting current Ia of output negative pole is given the auxiliary electromagnetic pole of encouraging, the auxiliary electromagnetic pole of encouraging will provide and lead and encourage the reciprocal magnetic flux of permanent-magnet pole magnetic flux, to reduce the induced potential of armature of direct current motor winding.Armature of direct current motor winding on stator, through obtaining the less direct current of pulsing after rectification respectively, is sent into electrical network after inversion.Wherein, the ring cowling that covers the silicon steel sheet of ring-shaped rotor inner ring can cause ring-shaped rotor armature winding be arranged in internal layer groove conductor magnet short-cut path or make the magnetic line of force seldom through internal layer groove (cause the conductor of internal layer groove not cut or seldom cutting magnetic line), to be arranged in the electromotive force that the conductor of outer groove responds to than the conductor of internal layer groove many for ring-shaped rotor armature winding like this, make each ring-shaped rotor armature winding have induced potential output, just can be the auxiliary electromagnetic pole of encouraging DC excitation electric current I a is provided.
From the above-mentioned course of work, describe and can find out, the exciting current feedway of described annular DC exciter is between alternator shaft (son) rotating speed or output voltage and excitation, to have built a closed-loop control, its effect or function are to gather alternator shaft (son) rotating speed or output voltage signal, and according to rotating shaft (son) rotating speed or output voltage signal, export the direct current of corresponding polarity and voltage, for annular DC exciter provides suitable excitation, and then make annular DC exciter provide suitable exciting current for auxiliary electrical magnetic pole, finally reach the object that regulates excitation.The structure (comprising hardware and software) of exciting current feedway that realizes the annular DC exciter of above-mentioned functions is that those skilled in the art easily realizes, so the present invention makes concrete structure to it, describes.
For further perfect frame, each DC excitation adjuster U-iron heart is positioned on the one side outside ring-shaped rotor and is connected with external ring lid, and external ring lid overlaps ring-shaped rotor inside completely.External ring lid and one side of the be connected U-iron heart are same magnetic poles like this, and object is for the ring-shaped rotor armature winding in the outer groove of ring-shaped rotor provides uniform magnetic field, reduces the pulsation of induced voltage.
The present invention has adopted composite excitation pioneeringly on brushless DC generator (armature winding is armature of direct current motor winding), compares the brushless DC generator of existing permanent magnet excitation and has realized excitation regulation, can be for wind power generation; Compare the brushless DC generator of existing electric excitation, composite excitation has increased the adjustable range of excitation, more be applicable to wind power generation rotor speed and change demand greatly, due to electric excitation, just play the effect of additive excitation and adjusting excitation, thereby the fluctuation that greatly reduces line voltage is on excitation and then the impact on generator output voltage simultaneously; The present invention that more crucial is has creatively adopted the annular DC exciter of brand new design in auxiliary exciting current generator of encouraging electromagnetic pole, this annular DC exciter can direct output of DC current (the induced potential in the armature winding of this annular DC exciter is DC induction gesture) provides exciting current for auxiliary electrical magnetic pole, the brushless DC generator that has overcome existing electric excitation because of electric brush slip ring structure, coaxially defect and the problem that rectifying device brings is set, makes it be applicable to more safely and reliably wind power generation.
The mixing excitation brushless DC wind-driven generator of another kind of structure, comprises the armature of direct current motor winding on stator and stator, rotating shaft, and the master who is arranged in rotating shaft encourages permanent-magnet pole, the rectifying device being connected with armature of direct current motor winding on stator; in rotating shaft, be also provided with the auxiliary electromagnetic pole of encouraging that phase place identical (be magnetic pole Relative position determination after position of magnetic pole identical) is installed with main number of magnetic poles of encouraging permanent-magnet pole and magnetic pole thereof, also comprise auxiliary exciting current generator of encouraging electromagnetic pole, auxiliary exciting current generator of encouraging electromagnetic pole comprise annular DC exciter and be arranged on stator or stator is outer and the direct voltage polarity of its output and size with field pole (main permanent-magnet pole and the auxiliary electromagnetic pole of encouraging of encouraging, be rotor) variation of the output voltage of rotating speed and this generator and the exciting current feedway of adjustable annular DC exciter, wherein annular DC exciter comprises and is fixed in rotating shaft plate-like ring-shaped rotor and along the equally distributed DC excitation adjuster of stator inner wall, the left end face of plate-like ring-shaped rotor is uniform offers left groove, the its right end face of plate-like ring-shaped rotor offers and left groove right groove one to one, the left groove of each correspondence and right groove are wound with plate-like ring-shaped rotor armature winding, each plate-like ring-shaped rotor armature winding is together in series from beginning to end, be connected with auxiliary input of encouraging the excitation winding of electromagnetic pole, one side end face of plate-like ring-shaped rotor covers and is fixed with the ring cowling of silicon steel sheet, each DC excitation adjuster comprises the U-iron heart being fixed on stator inner wall and is entangled in U-iron magnet exciting coil in the heart, the both sides of the U-iron heart of DC excitation adjuster lay respectively at the two ends of plate-like ring-shaped rotor and press close to covering respectively ring cowling and the opposite side end face on plate-like ring-shaped rotor one side end face, each DC excitation adjuster U-iron magnet exciting coil is in the heart together in series, be connected with the output of the exciting current feedway of annular DC exciter, the coiling of U-iron magnet exciting coil in the heart and connection mode will guarantee that the limit that the U-iron heart is positioned at plate-like ring-shaped rotor the same side is same magnetic polarity (is all the N utmost point or is all the S utmost point).The mixing excitation brushless DC wind-driven generator of this structure and last kind belong to a total inventive concept, and its course of work is identical with last kind, and difference is only that the rotor structure of annular DC exciter is different.The magnet short-cut path of the conductor of the groove (right groove) that the ring cowling that similarly, covers the silicon steel sheet of plate-like ring-shaped rotor one side end face can cause plate-like ring-shaped rotor armature winding to be arranged in to be covered by ring cowling or make the magnetic line of force seldom through this capped groove (cause the conductor of this capped groove not cut or seldom cutting magnetic line).Similarly, for further perfect frame, each DC excitation adjuster U-iron heart is positioned on the limit that plate-like ring-shaped rotor do not cover ring cowling one side and is connected with external ring lid, and external ring lid all covers the card of plate-like ring-shaped rotor, external ring lid and one side of the be connected U-iron heart are same magnetic poles like this, object is to provide uniform magnetic field for plate-like ring-shaped rotor armature winding that plate-like ring-shaped rotor is pressed close to external ring lid, reduces the pulsation of induced voltage.
Mixing excitation brushless DC wind-driven generator of the present invention compared to existing technology tool has the following advantages:
1, control appliance is simple, fewer 1/3rd than existing interchange wind-driven generator freq-variable electronic equipment, more reliable;
2, wind speed range is wide, as two meters to 25 meters per second; Fig. 7 is power output one timing, by regulating the change curve between excitation generator outlet voltage and rotor speed, can find out in larger rotating speed (wind speed) excursion, by regulating excitation can make output voltage held stationary, also illustrate that this generator has wider excitation regulation scope.
3, reduce the idle 45% of existing interchange wind-driven generator, lowered loss more than 20%.
4, the generator connecting in parallel with system that is easy to realize in many, the running of different wind speed is online, accesses large electrical network after concentrating frequency conversion by micro-electrical network.
5, improve direct current and become the margin of power before alternating current equipment, improved current waveform.
6, there are extremely strong low voltage ride-through capability and wind turbine voltage from recovery capacity.
7, owing to reducing generator related elements and simplified structure, improved the operational reliability of motor, overcome existing brushless DC generator safeguard inconvenient, cost is high or baroque problem.
Mixing excitation brushless DC wind-driven generator of the present invention has carried out brand-new adjustment and research to electric machine structure, its working method more flexibly, to power requirement, more elasticity, speed are can stepless variation relative with loss minimum, it is for the quality that improves wind turbine electric power, economy and reliability, have very large meaning.It goes for the wind energy turbine set that larger area wind field and many typhoons motor are worked simultaneously, and can allow the different wind turbine of rotating speed be incorporated into the power networks, wind power engineering relaying induction generator, another the brand-new wind turbine after double-fed generator and magneto alternator.
The present invention has working stability, and simple in structure and reliable, energy-conservation, running wastage is little, suitable wide wind speed range work, a series of features such as output voltage stabilization; This motor also can be as motor, be used in high-power, multi-speed exchanged, the engineering equipment of adjustable output torque.Also applicable as the medium and small generator system of multi-speed exchanged power source generating, as aircraft, boats and ships, automobile etc.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the structural representation of annular DC exciter in Fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is another kind of structural representation of the present invention;
Fig. 5 is the structural representation of the annular DC exciter in Fig. 4;
Fig. 6 is the left view (without the U-iron heart) of Fig. 5;
Fig. 7 is power output one timing, by regulating the change curve between excitation generator outlet voltage and rotor speed.
In figure: 1-stator, 2-rotating shaft, 3-master encourages permanent-magnet pole, the auxiliary electromagnetic pole of encouraging of 4-, 5-annular DC exciter, the exciting current feedway of 6-annular DC exciter, 7-ring-shaped rotor, the outer groove of 8-, 9-internal layer groove, 10-ring-shaped rotor armature winding, 11-ring cowling, 12-U shape is unshakable in one's determination, 13-magnet exciting coil, 14-rotor-position sensor, 15-external ring lid, 16-plate-like ring-shaped rotor, the left groove of 17-, the right groove of 18-, 19-plate-like ring-shaped rotor armature winding.
Embodiment
Mixing excitation brushless DC wind-driven generator, comprises the armature of direct current motor winding on stator 1 and stator, rotating shaft 2, and the master who is arranged in rotating shaft 2 encourages permanent-magnet pole 3, the rectifying device being connected with armature of direct current motor winding on stator; in rotating shaft 2, be also provided with the auxiliary electromagnetic pole 4 of encouraging that phase place identical (be magnetic pole Relative position determination after position of magnetic pole identical) is installed with main number of magnetic poles of encouraging permanent-magnet pole 3 and magnetic pole thereof, also comprise auxiliary exciting current generator of encouraging electromagnetic pole, auxiliary exciting current generator of encouraging electromagnetic pole comprise annular DC exciter 5 and be arranged on stator or stator is outer and the direct voltage polarity of its output and size with field pole (main permanent-magnet pole and the auxiliary electromagnetic pole of encouraging of encouraging, be rotor) variation of the output voltage of rotating speed and this generator and the exciting current feedway 6 of adjustable annular DC exciter, wherein annular DC exciter comprises and is fixed on the ring-shaped rotor 7 that built up by ring-shaped silicon steel sheet in rotating shaft 2 and along the equally distributed DC excitation adjuster of stator inner wall, on the outer ring of ring-shaped rotor 7, be evenly provided with outer groove 8, the inner ring of ring-shaped rotor 7 is provided with and outer groove internal layer groove 9 one to one, outer groove and the internal layer groove of each correspondence are wound with ring-shaped rotor armature winding 10, each ring-shaped rotor armature winding is together in series from beginning to end, be connected with auxiliary input of encouraging the excitation winding of electromagnetic pole 4, the inner ring of ring-shaped rotor 7 covers and is fixed with the ring cowling 11 of silicon steel sheet, each DC excitation adjuster comprises the U-iron heart 12 being fixed on stator inner wall and is entangled in U-iron magnet exciting coil 13 in the heart, the U-iron heart of DC excitation adjuster inserts ring-shaped rotor on one side and presses close to covering the ring cowling 11 in ring-shaped rotor inner ring, each DC excitation adjuster U-iron magnet exciting coil 13 is in the heart together in series, be connected with the output of the exciting current feedway 6 of annular DC exciter, the coiling of U-iron magnet exciting coil in the heart and connection mode will guarantee that one side of U-iron heart insertion ring-shaped rotor is same magnetic polarity (be all the N utmost point or be all the S utmost point).During concrete enforcement, like the prior art, on stator 1, be provided with rotor-position sensor 14.Described master encourages the magnetic pole that permanent-magnet pole 3 can adopt ferrite or rare earth permanent-magnetic material to make.The U-iron heart 12 can adopt special connector and stator to fix, or directly and stator fix.
Further, be connected with external ring lid 15(obvious on one side that each DC excitation adjuster U-iron heart 12 is positioned at outside ring-shaped rotor, rotating shaft 2 will be passed external ring lid 15, and rotating shaft could normally be rotated), and external ring lid 15 overlaps ring-shaped rotor 7 inside completely.
Mixing excitation brushless DC wind-driven generator, comprises the armature of direct current motor winding on stator 1 and stator, rotating shaft 2, and the master who is arranged in rotating shaft encourages permanent-magnet pole 3, the rectifying device being connected with armature of direct current motor winding on stator; in rotating shaft 2, be also provided with the auxiliary electromagnetic pole 4 of encouraging that phase place identical (be magnetic pole Relative position determination after position of magnetic pole identical) is installed with main number of magnetic poles of encouraging permanent-magnet pole 3 and magnetic pole thereof, also comprise auxiliary exciting current generator of encouraging electromagnetic pole, auxiliary exciting current generator of encouraging electromagnetic pole comprise annular DC exciter 5 and be arranged on stator or stator is outer and the direct voltage polarity of its output and size with field pole (main permanent-magnet pole and the auxiliary electromagnetic pole of encouraging of encouraging, be rotor) variation of the output voltage of rotating speed and this generator and the exciting current feedway 6 of adjustable annular DC exciter, wherein annular DC exciter 5 comprises and is fixed in rotating shaft plate-like ring-shaped rotor 16 and along the equally distributed DC excitation adjuster of stator inner wall, the left end face of plate-like ring-shaped rotor is uniform offers left groove 17, the its right end face of plate-like ring-shaped rotor offers and left groove right groove 18 one to one, the left groove of each correspondence and right groove are wound with plate-like ring-shaped rotor armature winding 19, each plate-like ring-shaped rotor armature winding is together in series from beginning to end, be connected with auxiliary input of encouraging the excitation winding of electromagnetic pole 4, one side end face of plate-like ring-shaped rotor 16 covers and is fixed with the ring cowling 11 of silicon steel sheet, each DC excitation adjuster comprises the U-iron heart 12 being fixed on stator inner wall and is entangled in U-iron magnet exciting coil 13 in the heart, the both sides of the U-iron heart of DC excitation adjuster lay respectively at the two ends of plate-like ring-shaped rotor and press close to covering respectively ring cowling 11 and the opposite side end face on plate-like ring-shaped rotor one side end face, each DC excitation adjuster U-iron magnet exciting coil 13 is in the heart together in series, be connected with the output of the exciting current feedway 6 of annular DC exciter, the coiling of U-iron magnet exciting coil in the heart and connection mode will guarantee that the limit that the U-iron heart is positioned at plate-like ring-shaped rotor the same side is same magnetic polarity (is all the N utmost point or is all the S utmost point).During concrete enforcement, like the prior art, on stator 1, be provided with rotor-position sensor 14.Described master encourages the magnetic pole that permanent-magnet pole 3 can adopt ferrite or rare earth permanent-magnetic material to make.
Further, each DC excitation adjuster U-iron heart 12 is positioned at that on the limit that plate-like ring-shaped rotor 16 do not cover ring cowling one side (being coated with the opposite side of a side of ring cowling), to be connected with external ring lid 15(obvious, rotating shaft 2 will be passed external ring lid 15, rotating shaft could normally be rotated), and external ring lid 15 all covers the card of plate-like ring-shaped rotor 16.
Claims (4)
1. a mixing excitation brushless DC wind-driven generator, comprise the armature of direct current motor winding on stator (1) and stator, rotating shaft (2), the master who is arranged in rotating shaft (2) encourages permanent-magnet pole (3), the rectifying device being connected with armature of direct current motor winding on stator; it is characterized in that, in rotating shaft (2), be also provided with main number of magnetic poles and magnetic pole thereof of encouraging permanent-magnet pole (3) the auxiliary electromagnetic pole (4) of encouraging that phase place is identical is installed, also comprise auxiliary exciting current generator of encouraging electromagnetic pole, auxiliary exciting current generator of encouraging electromagnetic pole comprises annular DC exciter (5) and is arranged on stator or stator is outer and the exciting current feedway (6) of the direct voltage polarity of its output and the size adjustable annular DC exciter with main variation of encouraging permanent-magnet pole and auxiliary output voltage of encouraging electromagnetic pole rotating speed and this generator, wherein annular DC exciter comprises and is fixed on the upper ring-shaped rotor (7) being built up by ring-shaped silicon steel sheet of rotating shaft (2) and along the equally distributed DC excitation adjuster of stator inner wall, on the outer ring of ring-shaped rotor (7), be evenly provided with outer groove (8), the inner ring of ring-shaped rotor (7) is provided with and outer groove internal layer groove (9) one to one, the outer groove of each correspondence and internal layer groove are wound with ring-shaped rotor armature winding (10), each ring-shaped rotor armature winding is together in series from beginning to end, be connected with auxiliary input of encouraging the excitation winding of electromagnetic pole (4), the inner ring of ring-shaped rotor (7) covers and is fixed with the ring cowling (11) of silicon steel sheet, each DC excitation adjuster comprises the U-iron heart (12) being fixed on stator inner wall and is entangled in U-iron magnet exciting coil (13) in the heart, the U-iron heart of DC excitation adjuster inserts ring-shaped rotor on one side and presses close to covering the ring cowling (11) in ring-shaped rotor inner ring, each DC excitation adjuster U-iron magnet exciting coil (13) is in the heart together in series, be connected with the output of the exciting current feedway (6) of annular DC exciter, the coiling of the magnet exciting coil on the U-iron heart (12) and connection mode will guarantee that one side of U-iron heart insertion ring-shaped rotor is same magnetic polarity.
2. mixing excitation brushless DC wind-driven generator according to claim 1, it is characterized in that, each DC excitation adjuster U-iron heart (12) is positioned at and on the one side outside ring-shaped rotor, is connected with external ring lid (15), and external ring lid (15) overlaps ring-shaped rotor (7) inside completely.
3. a mixing excitation brushless DC wind-driven generator, comprises the armature of direct current motor winding on stator (1) and stator, rotating shaft (2), and the master who is arranged in rotating shaft encourages permanent-magnet pole (3), the rectifying device being connected with armature of direct current motor winding on stator; it is characterized in that, in rotating shaft (2), be also provided with main number of magnetic poles and magnetic pole thereof of encouraging permanent-magnet pole (3) the auxiliary electromagnetic pole (4) of encouraging that phase place is identical is installed, also comprise auxiliary exciting current generator of encouraging electromagnetic pole, auxiliary exciting current generator of encouraging electromagnetic pole comprises annular DC exciter (5) and is arranged on stator or stator is outer and the exciting current feedway (6) of the direct voltage polarity of its output and the size adjustable annular DC exciter with main variation of encouraging permanent-magnet pole and auxiliary output voltage of encouraging electromagnetic pole rotating speed and this generator, wherein annular DC exciter (5) comprises the plate-like ring-shaped rotor (16) that is fixed in rotating shaft and along the equally distributed DC excitation adjuster of stator inner wall, the uniform left groove (17) that offers of left end face of plate-like ring-shaped rotor, the its right end face of plate-like ring-shaped rotor offers and left groove right groove (18) one to one, the left groove of each correspondence and right groove are wound with plate-like ring-shaped rotor armature winding (19), each plate-like ring-shaped rotor armature winding is together in series from beginning to end, be connected with auxiliary input of encouraging the excitation winding of electromagnetic pole (4), one side end face of plate-like ring-shaped rotor (16) covers and is fixed with the ring cowling (11) of silicon steel sheet, each DC excitation adjuster comprises the U-iron heart (12) being fixed on stator inner wall and is entangled in U-iron magnet exciting coil (13) in the heart, the both sides of the U-iron heart of DC excitation adjuster lay respectively at the two ends of plate-like ring-shaped rotor and press close to covering respectively ring cowling (11) and the opposite side end face on plate-like ring-shaped rotor one side end face, each DC excitation adjuster U-iron magnet exciting coil (13) is in the heart together in series, be connected with the output of the exciting current feedway (6) of annular DC exciter, the coiling of U-iron magnet exciting coil in the heart and connection mode will guarantee that the limit that the U-iron heart is positioned at plate-like ring-shaped rotor the same side is same magnetic polarity.
4. mixing excitation brushless DC wind-driven generator according to claim 3, it is characterized in that, each DC excitation adjuster U-iron heart (12) is positioned on the limit that plate-like ring-shaped rotor (16) do not cover ring cowling one side and is connected with external ring lid (15), and external ring lid (15) all covers the card of plate-like ring-shaped rotor (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210182902.2A CN102710083B (en) | 2012-06-06 | 2012-06-06 | Hybrid-excited brushless DC wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210182902.2A CN102710083B (en) | 2012-06-06 | 2012-06-06 | Hybrid-excited brushless DC wind power generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102710083A CN102710083A (en) | 2012-10-03 |
| CN102710083B true CN102710083B (en) | 2014-02-12 |
Family
ID=46902692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210182902.2A Expired - Fee Related CN102710083B (en) | 2012-06-06 | 2012-06-06 | Hybrid-excited brushless DC wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102710083B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017064699A1 (en) * | 2015-10-15 | 2017-04-20 | Vastech Holdings Ltd. | Electric motor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701265B (en) * | 2013-12-27 | 2016-03-09 | 南昌康富科技股份有限公司 | Double-voltage-regulpower power generator |
| CN110151107B (en) * | 2019-04-26 | 2021-09-10 | 群曜医电股份有限公司 | Wired gastrointestinal capsule endoscope and magnetic control device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6864608B2 (en) * | 2001-07-31 | 2005-03-08 | Korea Electrotechnology Research Institute | Brushless generator with permanent magnets |
| CN1870393A (en) * | 2006-06-12 | 2006-11-29 | 南京航空航天大学 | Mixing excitation brushless DC start generator |
| CN102195427A (en) * | 2010-03-11 | 2011-09-21 | 南京航空航天大学 | Two-stage hybrid excitation brushless synchronous motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5305753B2 (en) * | 2008-06-20 | 2013-10-02 | 株式会社東芝 | Permanent magnet rotating electric machine |
-
2012
- 2012-06-06 CN CN201210182902.2A patent/CN102710083B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6864608B2 (en) * | 2001-07-31 | 2005-03-08 | Korea Electrotechnology Research Institute | Brushless generator with permanent magnets |
| CN1870393A (en) * | 2006-06-12 | 2006-11-29 | 南京航空航天大学 | Mixing excitation brushless DC start generator |
| CN102195427A (en) * | 2010-03-11 | 2011-09-21 | 南京航空航天大学 | Two-stage hybrid excitation brushless synchronous motor |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2010-4672A 2010.01.07 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017064699A1 (en) * | 2015-10-15 | 2017-04-20 | Vastech Holdings Ltd. | Electric motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102710083A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Stiebler | Wind energy systems for electric power generation | |
| CN101764491A (en) | Megawatt grade brushless slip ring double-fed wind generator/motor and control method thereof | |
| CN105429407A (en) | Magnetic gear motor with continuously adjustable speed ratio | |
| CN201786562U (en) | Dual-stator direct drive permanent magnet wind-driven generator | |
| KR101396522B1 (en) | Generator corotating rotator and stator | |
| CN107707090A (en) | Bimorph transducer superconduction brushless dual-feedback wind power generator | |
| CN102710083B (en) | Hybrid-excited brushless DC wind power generator | |
| CN106787545B (en) | A kind of double-stator magneto resistance brushless wind generator of three electrical ports | |
| CN101615831A (en) | A kind of have a stator reversing double-rotor generator | |
| CN201263113Y (en) | Single iron-core brushless synchronous motor | |
| CN110957822B (en) | Birotor magnetic flux switches aerogenerator and power generation system | |
| CN105422375B (en) | The seawave power generation machine platform of composite rotating wind-power electricity generation and flywheel energy storage function | |
| CN201903629U (en) | Alternating current transformation-type excitation synchronous wind power generation experimental facility | |
| CN204669112U (en) | A kind of multipole permanent magnet motor pole core structure | |
| CN101051779B (en) | Winding type internal rotor brushless double feed generator and its control device | |
| CN202488313U (en) | Harmonic brushless alternating current power generator | |
| CN206481061U (en) | A kind of permanent magnet generator unit and electricity generation system | |
| CN202435218U (en) | Axial brushless doubly-fed motor | |
| CN101483371A (en) | Speed regulating electricity generator with constant frequency | |
| CN101546981B (en) | Vertical wind power generator with motor startup mode | |
| CN201298793Y (en) | Small-sized direct-drive permanent-magnet synchronous wind-driven generator and small-sized wind-driven generating system thereof | |
| CN209642521U (en) | A kind of multi-phase permanent linear electric generator | |
| CN201138776Y (en) | Speed regulating electricity generator with constant frequency | |
| CN103001427A (en) | High-power hybrid-excitation bi-rotor double-fed synchronous wind driven generator | |
| CN202326023U (en) | Novel wind generating set structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20200606 |