摘要
根据不同频率振荡模式的正交性质，针对每一振荡模式将系统机组分成两群，利用部分惯量中心（ＰＣＯＩ）将两个机群分别等值成两台发电机，在等值两机系统上进行特征根的计算。给出了１０机新英格兰系统的计算结果，证明了该方法的有效性。最后分析了误差原因，并提出了进一步提高计算精度的一些方法。
According to the orthogonality relation between any two swing modes with diferent frequency,the generatorsin the power system are divided into two groups for each swing mode.The two groups are equivalent to two generatorsby using partial center of inertia (PCOI) transformation.Based on the equivalent 2-machine system,the eigenvalues arecalculated.The calculation results of 10-machine New England power system demonstrate that the method is effective.In the end of this paper,the error reason is analyzed.Some methods are also presented to improve the calculation accuracy.
出处
《电力系统自动化》
EI
CSCD
北大核心
1998年第9期43-45,76,共4页
Automation of Electric Power Systems
关键词
部分惯量中心
特征根
多机系统
计算
电力系统
the division of generator groups, partial center of inertia, swing mode eigenvalue
