基于降阶算法的电力系统稳定器分段设计
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摘要
大规模电力系统中,PSS的协调设计往往需要计算多次系统的机电振荡模式。由于系统的规模较大,状态矩阵的阶数很高,常规计算矩阵特征值方法会遇到因数值困难而报错的问题。为了解决这一问题,提出一种利用降阶矩阵间接计算系统机电振荡模式的方法,并将其应用在PSS的分段协调整定过程中。PSS的分段协调设计的过程分为两个阶段:一是进行目标优化,搜索令振荡模式移到目标位置时PSS应提供的阻尼转矩系数;二是利用相位补偿原理确定PSS的增益与时间常数。最后给出了一个四机两区电力系统的应用计算和仿真结果。
引文
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[5]Vournas C D,Maratos N,Papadias B C.Power system stabiliser co-ordination using a parameter optimisation method[J].International Conference on Control,1994,1994(1):403-408.
[6]Abdel-Magid Y L,Abido M A.Optimal multiobjective design of robust power system stabilizers using genetic algorithms[J].IEEE Transactions on Power Systems,2003,18(3):1125-1132.
[7]Abido M A.Robust design of multimachine power system stabilizers using simulated annealing[J].IEEE Transactions on Energy Conversion,2000,15(3):297-304.
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