• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 22 Issue 2
Apr.  2009
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Article Contents
LIAO Guodong, WANG Xiaoru. On-Line Identification Method for Critical Buses of Power System Voltage Stability[J]. Journal of Southwest Jiaotong University, 2009, 22(2): 244-248.
Citation: LIAO Guodong, WANG Xiaoru. On-Line Identification Method for Critical Buses of Power System Voltage Stability[J]. Journal of Southwest Jiaotong University, 2009, 22(2): 244-248.

On-Line Identification Method for Critical Buses of Power System Voltage Stability

  • Received Date: 20 Nov 2008
  • Publish Date: 20 Apr 2009
  • The parameters of an equivalent single source system were computed on-line based on bus voltages and inject currents in the adjacent regions of monitored buses,in which the equivalent loads are affected only by the loads in the surrounding grid.Based on the equivalent model,a load margin index was used to monitor the voltage stability of multi-generator systems.The new voltage stability monitoring method was simulated in the modified IEEE 50 generator test system.The simulation results show that it can identify the critical buses that are prone to voltage instability.

     

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  • KESSEL P,GLAVITSCH H.Estimating the voltage stability of a power system[J].IEEE Transactions on Power Systems,1986,1(3):346-354.[2] TAYLOR C W.Concept of under-voltage load shedding for voltage stability[J].IEEE Transactions on Power Systems,1992,7(2):480-488.[3] QUINTELA A S,CASTRO C A.Improved branch-based voltage stability proximity indices part Ⅰ:theoretical background[C]//Proceedings of the 2002 Large Engineering Systems Conference on Power Engineering.Nova Scotia:[s.n.],2002:109-114.[4] 李文沅,余娟,汪洋,等.通过辨识电网薄弱环节实时辨识电网电压稳定性的方法[P].中国:CN 101118265 A.2008-02-06.[5] VU K,BEGOVIC M,NOVOSEL D,et al.Use of local measurements to estimate voltage-stability margin[J].IEEE Transactions on Power Systems,1999,14(3):1029-1035.[6] HAQUE M H.On-line monitoring of maximum permissible loading of a power system within voltage stability limits[J].IEE Proceedings-Generation,Transmission and Distribution,2003,150(1):107-112.[7] MILOSEVIC B,BEGOVIC M.Voltage-stability protection and control using a wide-area network of phasor measurements[J].IEEE Transactions on Power Systems,2003,18(1):121-127.[8] GONG Y F,SCHULZ N,GUZMAN A.Synchrophasor-based real-time voltage stability index[C]//Power Systems Conference and Exposition.Atlanta:[s.n.],2006:1029-1036.[9] THORP J S,WANG X R,HOPKINTON K M,et al.Autonomous systems and intelligent agents in power system control and operation-chapter 7 agent technology applied to the protection of power systems[M].Berlin:Springer,2003:115-154.
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