Title:
UNIVERSAL POWER FLOW CALCULATION METHOD FOR POWER SYSTEM COMPRISING UPFC
Document Type and Number:
WIPO Patent Application WO/2018/103317
Kind Code:
A1
Abstract:
A universal power flow calculation method for a power system comprising a unified power flow controller (UPFC). Under the premise that the control target of the UPFC is satisfied, the method combines the power injection model with the Newton-Raphson method so as to calculate the power flow of the power system by means of iteration. The method is not only applicable to a UPFC having a traditional structure, but also applicable to a novel UPFC in which a series side and a parallel side are connected to different buses or a plurality of branches connected in series are provided. The specific calculation steps and calculation formulas for performing the power flow calculation shows that when the present method is used to calculate the power flow, there is no need to add new state variables, and the dimension of the Jacobian matrix will not be increased in the process of iterating. Therefore, the method is easy to be implemented, and meanwhile has a good convergence characteristic.
Inventors:
CAI HUI (CN)
XIE ZHENJIAN (CN)
XU ZHENG (CN)
YANG JIAN (CN)
QI WANCHUN (CN)
ZHANG WENJIA (CN)
LI CHEN (CN)
WANG QUANQUAN (CN)
WU CHEN (CN)
XIE ZHENJIAN (CN)
XU ZHENG (CN)
YANG JIAN (CN)
QI WANCHUN (CN)
ZHANG WENJIA (CN)
LI CHEN (CN)
WANG QUANQUAN (CN)
WU CHEN (CN)
Application Number:
PCT/CN2017/091020
Publication Date:
June 14, 2018
Filing Date:
June 30, 2017
Export Citation:
Assignee:
STATE GRID JIANGSU ECONOMIC RESERCH INST (CN)
International Classes:
H02J3/06
Foreign References:
| CN106549384A | 2017-03-29 | |||
| CN105140914A | 2015-12-09 | |||
| US20090182518A1 | 2009-07-16 |
Other References:
"Modern Power Systems Analysis", 30 March 2013, article WANG ET AL, pages: 221-225 - 232-238
SONG ET AL: "Load Flow Calculation Study for Power Systems Containing UPFC", JIANGSU ELECTRICAL ENGINEERING, vol. 35, no. 1, 31 January 2016 (2016-01-31), pages 24 - 27, ISSN: 1009-0665
SONG ET AL: "Load Flow Calculation Study for Power Systems Containing UPFC", JIANGSU ELECTRICAL ENGINEERING, vol. 35, no. 1, 31 January 2016 (2016-01-31), pages 24 - 27, ISSN: 1009-0665
Attorney, Agent or Firm:
NANJING HUISHENG PATENT TRADEMARK FIRM et al. (CN)
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