5LF A,SMED T,ANDERSON G,et al. Fast calculation of a voltage stability index[J]. IEEE Trans. on Power Systems, 1992,7( 1 ) :54-64.
6GAO B,MORSION G K. Voltage stability evaluation using modal analysis [J]. IEEE Trans. on Power Systems,1992,7(4): 1529-1542.
7YORINO N,HARADA S,CHENG H. A method to approximate a closest loadability limit using multiple load flow solutions[J]. IEEE Trans. on Power Systems,1997,12( 1 ) :424 -429.
8MILOSEVIC B,BEGOVIC M. Voltage-stability protection and control using a wide-area network of phasor measurements[J]. IEEE Trans. on Power Systems,2003,18(1):121-127.
9VERBIC G,GUBINA F. Fast voltage-collapse line-protection algorithm based on local phasors[J]. IEE Proc.-Gener. Transm. Distrib.,2003,150(4):482-486.
10ANTONIO C,de SOUZA Z,JULIO C,et al. On-line voltage stability monitoring[J]. IEEE Trans. on Power Systems,2000,15(4): 1300- 1305.
