作者: Yunfei Wang , Iraj Rahimi Pordanjani , Weixing Li , Wilsun Xu , Tongwen Chen
DOI: 10.1109/TPWRS.2011.2154366
关键词: Electronic engineering 、 Impedance matching 、 Voltage regulator 、 Engineering 、 Thévenin's theorem 、 Control theory 、 Port (circuit theory) 、 Electric power system 、 Electrical impedance 、 Generator (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.