CN103308862A

CN103308862A - Remote intelligent transformer substation storage battery charge and discharge and residual capacity monitoring device

Info

Publication number: CN103308862A
Application number: CN2013102173320A
Authority: CN
Inventors: 孙伟红; 孙光磊; 王喜银; 郭兴科; 章晓春; 樊义清; 黄涛; 牛立群; 李富强; 张胜; 彭林; 郭碧翔
Original assignee: Fuyang Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: Fuyang Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2013-06-04
Filing date: 2013-06-04
Publication date: 2013-09-18

Abstract

A remote intelligent transformer substation storage battery charge and discharge and residual capacity monitoring device comprises a field module, a communication module and a background monitoring module, which are fixedly connected with one another through lines. The device is characterized in that the field module comprises a charge and discharge module, a residual capacity monitoring module and a local PC (personal computer); the charge and discharge module comprises a rectifier tube, a direct-current disconnector and a discharge load; the residual capacity monitoring module comprises sampling lines, a signal conditioning circuit and a data acquisition card, the communication module comprises a display driver, a switch and a power system intranet, and the background monitoring module comprises a database, a display and a flow processor. The device has the beneficial effect that the device can ensure that storage batteries can be maintained well, so that the storage batteries can be in a healthy state for a long time, and thereby reliable guarantee is provided for the safe operation of a power system.

Description

The storage batteries of transformer substation long-distance intelligent discharges and recharges and remaining capacity monitoring device

Technical field:

The present invention relates to a kind of storage batteries of transformer substation long-range charge and discharge system and accumulator capacity intelligence monitoring and controlling device, belong to transforming plant DC monitoring technique field.

Background technology:

Along with the fast development of electrical network, transformer station's quantity increases sharply, and the maintenance workload of straight-flow system is also in quick increase.Traditional maintenance mode is difficult to assurance and carries out timely and effectively the straight-flow system maintenance.As according to rules regulations, the regularly property the checked discharge of the battery pack of operation, in order to accumulator is activated, capacity is restored, prolong serviceable life, guarantees the safe operation of transformer station.But the property checked discharge will expend a large amount of manpower and materials, the whenever once property checked discharge, will 10 hours consuming time (by 10 hours discharge rate electric currents), and then charged 10 hours, can satisfy the demand to confirm accumulator capacity.Discharge and recharge test 5 days with a group storage battery, transformer station's 2 group storage battery, single test 5 people, 34 transformer stations are calculated, the test that discharges and recharges of finishing whole accumulators needs 850 person-times, its workload also is sizable, therefore, be difficult to the on time property checked discharge of assurance in the real work, cause accumulator to be in operation and have potential safety hazard.The invention of the long-range charge and discharge of storage batteries of transformer substation system has reduced the workload of accumulator charge and discharge, can guarantee that accumulator is effectively safeguarded.

Summary of the invention:

The objective of the invention is provides a kind of long-distance intelligent charge and discharge device for the unattended operation transformer station accumulator, can save a large amount of man power and material of maintainer, the available remaining battery capacity of monitoring out of this device simultaneously, be converted to the pot life of accumulator, remind the maintainer in time to prepare standby redundancy, and adjust the technological transformation plan.

The present invention is achieved through the following technical solutions its goal of the invention.

The storage batteries of transformer substation long-distance intelligent discharges and recharges and remaining capacity monitoring device, by field module, communication module and background monitoring module composition, be fixedly connected with by circuit between each module, it is characterized in that: described field module comprises charge-discharge modules, capacity monitoring module, local PC; Charge-discharge modules comprises commutator tube, direct-current isolating switch and discharge load; The residual capacity monitoring modular comprises sample line, signal conditioning circuit and data collecting card, and described communication module comprises display driver, switch and electric system Intranet, and described background monitoring module comprises database, display, flow processing device.

The invention has the beneficial effects as follows: direct current maintainer every year, (each discharge needed 4 people to the once property checked discharge of accumulator, do not leave the scene in 2 days) with 50 yuan of one day labour costs of a people, 30 yuan of transportation expenses, (each discharge needs 4 people, do not leave the scene in 2 days) with 50 yuan of one day labour costs of a people, 30 yuan of transportation expenses, 50 yuan of calculating of subsistence charge, a group storage battery can be company and save more than 1,000 yuan of spending every year.Technique is installed to 9 220kV in the whole city (2 group storage battery), 27 110kV, 1 35kV transformer station, can save every year nearly 50,000 yuan more than, economic benefits.Simultaneously, accumulator has obtained good maintenance, is in for a long time health status, for the safe operation of electric system provides reliable guarantee.

Description of drawings:

Accompanying drawing 1 is structural representation of the present invention.

In the accompanying drawings, the 1st, commutator tube, the 2nd, signal processor, the 3rd, processor, the 4th, on-the-spot display, the 5th, direct-current isolating switch, the 6th, remote control, the 7th, disconnector, the 8th, discharge load, the 9th, communication module, the 10th, electric power networks, the 11st, background monitoring system

Embodiment:

The invention will be further described below in conjunction with accompanying drawing.

As shown in the figure: the storage batteries of transformer substation long-distance intelligent discharges and recharges and remaining capacity monitoring device, by field module, communication module 9 and background monitoring module composition, be fixedly connected with by circuit between each module, it is characterized in that: described field module comprises charge-discharge modules, capacity monitoring module, local PC; Charge-discharge modules comprises commutator tube 1, direct-current isolating switch 5 and discharge load 8; The residual capacity monitoring modular comprises sample line, signal conditioning circuit and data collecting card, and described communication module comprises display driver, switch and electric power networks 10, and described background monitoring module comprises database, on-the-spot display 4, processor 3.

Its concrete operation step is as follows:

Step 1, DC screen of transformer substation is transformed, cell circuit in transformer station increases commutator tube 1 (diode) control current trend, while is at commutator tube 1 (diode) two ends and connect a direct-current isolating switch 5, and the disconnection of this switch of Long-distance Control and closure can realize long-range discharge.

Step 2, the electric weight load 8 in parallel at the accumulator two ends;

The state quantity signal of the voltage of step 3, sample line collection accumulator, temperature, monomer resistance, and send signal processor 2 to; 2 pairs of signals of signal processor carry out necessary amplification, and filter and disturb, and then send all simulating signals to data collecting card; Data collecting card is installed on the industrial computer, input signal is processed, and the result is saved in the data buffer storage of self; Be uploaded to simultaneously background monitoring system 11;

Step 4, utilize application software, accumulator is monitored control with charge and discharge.Monitor simultaneously remaining battery capacity.

Claims

1. the storage batteries of transformer substation long-distance intelligent discharges and recharges and remaining capacity monitoring device, by field module, communication module and background monitoring module composition, be fixedly connected with by circuit between each module, it is characterized in that: described field module comprises charge-discharge modules, capacity monitoring module, local PC; Charge-discharge modules comprises commutator tube, direct-current isolating switch and discharge load; The residual capacity monitoring modular comprises sample line, signal conditioning circuit and data collecting card, and described communication module comprises display driver, switch and electric system Intranet, and described background monitoring module comprises database, display, flow processing device.

2. the storage batteries of transformer substation long-distance intelligent discharges and recharges and the residual capacity the method for monitoring, it is characterized in that: realize by following concrete operation step:

(1) DC screen of transformer substation is transformed, cell circuit increase commutator tube in transformer station is diode, the control current trend is the diode two ends and connects a direct-current isolating switch simultaneously that the disconnection of this switch of Long-distance Control and closure can realize long-range discharge at commutator tube;

(2) the electric weight load 8 in parallel at the accumulator two ends;

(3) state quantity signal of the voltage of sample line collection accumulator, temperature, monomer resistance, and send signal processor 2 to; 2 pairs of signals of signal processor carry out necessary amplification, and filter and disturb, and then send all simulating signals to data collecting card; Data collecting card is installed on the industrial computer, input signal is processed, and the result is saved in the data buffer storage of self; Be uploaded to simultaneously background monitoring system 11;

(4) utilize application software, accumulator is monitored control with charge and discharge, monitor simultaneously remaining battery capacity.