Voltage Stability Monitoring Based on the Concept of Coupled Single-Port Circuit

作者: Yunfei Wang , Iraj Rahimi Pordanjani , Weixing Li , Wilsun Xu , Tongwen Chen

DOI: 10.1109/TPWRS.2011.2154366

关键词: Electronic engineeringImpedance matchingVoltage regulatorEngineeringThévenin's theoremControl theoryPort (circuit theory)Electric power systemElectrical impedanceGenerator (circuit theory)Bus network

摘要: This paper reveals that the impedance match (or Thevenin circuit) based voltage stability monitoring techniques have problems to predict limits when applied multi-load power systems. Power system loads are nonlinear and dynamic. They cannot be simply represented as circuit parameters for analysis. To overcome these difficulties, a new concept called “coupled single-port circuit” is proposed in this paper. The decouples meshed network into individual single generator versus bus and, result, modified version of theorem can used. leads real-time scheme without need estimate parameters. margin identify weak areas on SCADA PMU data. Case studies conducted several test systems verified validity method.

参考文章(24)
M. Moghavvemi, O. Faruque, Real-time contingency evaluation and ranking technique IEE Proceedings - Generation, Transmission and Distribution. ,vol. 145, pp. 517- 524 ,(1998) , 10.1049/IP-GTD:19982179
Yang Wang, Wenyuan Li, Jiping Lu, A new node voltage stability index based on local voltage phasors Electric Power Systems Research. ,vol. 79, pp. 265- 271 ,(2009) , 10.1016/J.EPSR.2008.06.010
A.M. Chebbo, M.R. Irving, M.J.H. Sterling, Voltage collapse proximity indicator: behaviour and implications IEE Proceedings C Generation, Transmission and Distribution. ,vol. 139, pp. 241- 252 ,(1992) , 10.1049/IP-C.1992.0037
M.H. Haque, On-line monitoring of maximum permissible loading of a power system within voltage stability limits IEE Proceedings - Generation, Transmission and Distribution. ,vol. 150, pp. 107- 112 ,(2003) , 10.1049/IP-GTD:20020682
A.K. Sinha, D. Hazarika, A comparative study of voltage stability indices in a power system International Journal of Electrical Power & Energy Systems. ,vol. 22, pp. 589- 596 ,(2000) , 10.1016/S0142-0615(00)00014-4
Luis A.Ll. Zarate, Carlos A. Castro, A critical evaluation of a maximum loading point estimation method for voltage stability analysis Electric Power Systems Research. ,vol. 70, pp. 195- 202 ,(2004) , 10.1016/J.EPSR.2003.12.008
A.C.Z. de Souza, J.C.S. de Souza, A.M.L. da Silva, On-line voltage stability monitoring IEEE Transactions on Power Systems. ,vol. 15, pp. 1300- 1305 ,(2000) , 10.1109/59.898105
G. Verbic, F. Gubina, A new concept of voltage-collapse protection based on local phasors IEEE Transactions on Power Delivery. ,vol. 19, pp. 576- 581 ,(2004) , 10.1109/TPWRD.2004.824763
Le Fu, Bikash C. Pal, Brian J. Cory, Phasor measurement application for power system voltage stability monitoring power and energy society general meeting. pp. 1- 8 ,(2008) , 10.1109/PES.2008.4596089
B. Gao, G.K. Morison, P. Kundur, Voltage Stability Evaluation Using Modal Analysis IEEE Transactions on Power Systems. ,vol. 7, pp. 1529- 1542 ,(1992) , 10.1109/59.207377