WO2004023622A8 - System of super super decoupled loadflow computation for electrical power system - Google Patents

System of super super decoupled loadflow computation for electrical power system

Info

Publication number
WO2004023622A8
WO2004023622A8 PCT/CA2003/001312 CA0301312W WO2004023622A8 WO 2004023622 A8 WO2004023622 A8 WO 2004023622A8 CA 0301312 W CA0301312 W CA 0301312W WO 2004023622 A8 WO2004023622 A8 WO 2004023622A8
Authority
WO
WIPO (PCT)
Prior art keywords
super
ssdl
decoupled loadflow
real
electrical power
Prior art date
Application number
PCT/CA2003/001312
Other languages
French (fr)
Other versions
WO2004023622A3 (en
WO2004023622B1 (en
WO2004023622A2 (en
Inventor
Sureshchandra Patel
Original Assignee
Sureshchandra Patel
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sureshchandra Patel filed Critical Sureshchandra Patel
Priority to CA 2548096 priority Critical patent/CA2548096C/en
Priority to EP03793529A priority patent/EP1661224A2/en
Priority to AU2003260221A priority patent/AU2003260221B2/en
Priority to US10/570,023 priority patent/US7769497B2/en
Publication of WO2004023622A2 publication Critical patent/WO2004023622A2/en
Publication of WO2004023622A3 publication Critical patent/WO2004023622A3/en
Publication of WO2004023622A8 publication Critical patent/WO2004023622A8/en
Publication of WO2004023622B1 publication Critical patent/WO2004023622B1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
    • H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

Load-Flow computations are performed in real-time operation/control and in on-line/off-line studies of electrical power systems. Three Load-Flow computation methods of the present invention are the best versions of many simple variants with almost similar performance. The Super Super Decoupled Loadflow (SSDL-YY) method and its many variants are characterized in limiting rotation angle applied to nodal real and reactive power mismatches to the maximum of -48 degrees instead of -36 degrees, replacing network shunt element -2bpCosΦp by [2(QSHpCosΦp - PSHpSinΦp)/Vs2] or by [-bpCosΦp + (QSHpCosΦp - PSHpSinΦp)/Vs2] and using the dividing term V2 instead of V in the modified nodal real power residues [RP] in the prior art Fast Super Decoupled Loadflow (FSDL) method. The other two Super Super Decoupled Loadflow: BGX' version (SSDL-BGX') and X'GpvX' version (SSDL-X'GpvX') are characterized in the use of simultaneous (1V,1θ) iteration scheme thereby reducing the mismatch computation once compared to two mismatch computations in the prior art method employing successive (1θ,1V) iteration scheme. The invented methods are also characterized in the different definition of gain matrices leading to some speed-up of the invented methods.
PCT/CA2003/001312 2002-09-03 2003-08-29 System of super super decoupled loadflow computation for electrical power system WO2004023622A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA 2548096 CA2548096C (en) 2002-09-03 2003-08-29 Method of super super decoupled loadflow computation for electrical power system
EP03793529A EP1661224A2 (en) 2002-09-03 2003-08-29 System of super super decoupled loadflow computation for electrical power system
AU2003260221A AU2003260221B2 (en) 2002-09-03 2003-08-29 System of super super decoupled loadflow computation for electrical power system
US10/570,023 US7769497B2 (en) 2002-09-03 2003-08-29 Method of super super decoupled loadflow computation for electrical power system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA 2400580 CA2400580A1 (en) 2002-09-03 2002-09-03 Systems of advanced super decoupled load-flow computation for electrical power system
CA2,400,580 2002-09-03

Publications (4)

Publication Number Publication Date
WO2004023622A2 WO2004023622A2 (en) 2004-03-18
WO2004023622A3 WO2004023622A3 (en) 2004-05-21
WO2004023622A8 true WO2004023622A8 (en) 2004-12-02
WO2004023622B1 WO2004023622B1 (en) 2005-01-06

Family

ID=31954501

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2003/001312 WO2004023622A2 (en) 2002-09-03 2003-08-29 System of super super decoupled loadflow computation for electrical power system

Country Status (5)

Country Link
US (1) US7769497B2 (en)
EP (1) EP1661224A2 (en)
AU (1) AU2003260221B2 (en)
CA (2) CA2400580A1 (en)
WO (1) WO2004023622A2 (en)

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CA2400580A1 (en) * 2002-09-03 2004-03-03 Sureshchandra B. Patel Systems of advanced super decoupled load-flow computation for electrical power system
US8849614B2 (en) 2002-11-06 2014-09-30 Gridquant, Inc. System and method for monitoring and managing three-phase power flows in electrical transmission and distribution networks
US20040153303A1 (en) * 2002-12-30 2004-08-05 Le Tang Efficient process for time dependent network model in an energy market simulation system
CA2479603A1 (en) * 2004-10-01 2006-04-01 Sureshchandra B. Patel Sequential and parallel loadflow computation for electrical power system
CN100370389C (en) * 2004-11-04 2008-02-20 哈尔滨工业大学 Power supply network voltage reactive-load remote control real-time optimization control method
KR101043572B1 (en) * 2009-08-10 2011-06-22 한국전력공사 Distribution Automation System and its voltage control method for reactive power compensation
US8756047B2 (en) * 2010-09-27 2014-06-17 Sureshchandra B Patel Method of artificial nueral network loadflow computation for electrical power system
CN102255322B (en) * 2011-07-15 2013-01-30 广东电网公司电力科学研究院 Method for interactively iterative control of voltage reactive power of regional power grid
CN102722594B (en) * 2011-11-29 2014-09-17 中国南方电网有限责任公司 Method for integrating offline mode data and state estimation data
US9640994B2 (en) * 2012-02-24 2017-05-02 Mitsubishi Electric Research Laboratories, Inc. Decoupled three-phase power flow analysis method for unbalanced power distribution systems
US9563722B2 (en) * 2012-11-13 2017-02-07 Gridquant, Inc. Sigma algebraic approximants as a diagnostic tool in power networks
US9450409B2 (en) * 2013-06-20 2016-09-20 Abb Research Ltd. Converter station power set point analysis system and method
CN103441495B (en) * 2013-08-28 2015-07-29 三川电力设备股份有限公司 The discrimination method of power system component parameter and corrected coefficient of power and system
US9548607B2 (en) * 2014-07-31 2017-01-17 Oren Meiri System and method for monitoring and controlling electrical network
US20180048151A1 (en) * 2014-09-22 2018-02-15 Sureshchandra B. Patel Methods of Patel Loadflow Computation for Electrical Power System
US11853384B2 (en) 2014-09-22 2023-12-26 Sureshchandra B. Patel Methods of patel loadflow computation for electrical power system
US10197606B2 (en) 2015-07-02 2019-02-05 Aplicaciones En Informática Avanzada, S.A System and method for obtaining the powerflow in DC grids with constant power loads and devices with algebraic nonlinearities
US10218178B2 (en) 2016-07-07 2019-02-26 University Of Hawai'i Dynamic reactive compensation
CN109217295B (en) * 2018-09-20 2020-05-29 吉林大学 Load flow sensitivity calculation method for preventing system overload and computer device
CN109858061B (en) * 2018-11-13 2023-06-30 天津大学 Power distribution network equivalence and simplification method for voltage power sensitivity estimation
CN110518591B (en) * 2019-08-22 2021-06-15 中国农业大学 Load flow calculation method for uncertain power system
CN111523800B (en) * 2020-04-22 2023-03-31 中车株洲电力机车研究所有限公司 Rapid calculation method for node conductance matrix in subway load flow calculation
CN113809749B (en) * 2021-08-31 2024-01-23 西安理工大学 Method for optimizing particle swarm of MG based on virtual impedance and comprising droop control DG
CN114204560A (en) * 2021-12-15 2022-03-18 国网上海市电力公司 Medium voltage distribution network line parameter identification method
CN114243690A (en) * 2021-12-15 2022-03-25 国网河北省电力有限公司 Power grid active safety correction method and device, electronic equipment and storage medium

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JPH0785623B2 (en) * 1989-02-01 1995-09-13 三菱電機株式会社 Power system voltage stability determination system
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CA2107388C (en) * 1993-11-09 2011-07-05 Sureshchandra B. Patel Method of fast super decoupled loadflow computation for electrical power system
CA2188674A1 (en) * 1994-04-29 1995-11-09 Robert Anthony Schlueter Method for improving voltage stability security in a power transmission system
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US7519506B2 (en) * 2002-11-06 2009-04-14 Antonio Trias System and method for monitoring and managing electrical power transmission and distribution networks
CA2479603A1 (en) * 2004-10-01 2006-04-01 Sureshchandra B. Patel Sequential and parallel loadflow computation for electrical power system

Also Published As

Publication number Publication date
CA2548096A1 (en) 2004-03-18
AU2003260221A1 (en) 2004-03-29
CA2548096C (en) 2011-07-05
AU2003260221B2 (en) 2010-06-17
US20080281474A1 (en) 2008-11-13
CA2400580A1 (en) 2004-03-03
AU2003260221A8 (en) 2004-03-29
EP1661224A2 (en) 2006-05-31
WO2004023622A3 (en) 2004-05-21
WO2004023622B1 (en) 2005-01-06
US7769497B2 (en) 2010-08-03
WO2004023622A2 (en) 2004-03-18

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