| 基于部分惯量中心等值的多机系统特征根计算 |
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| 引用本文： | 赵书强,常鲜戎.基于部分惯量中心等值的多机系统特征根计算[J].电力系统自动化,1998,22(9):43-45,76. |
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| 作者姓名： | 赵书强 常鲜戎 |
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| 作者单位： | 华北电力大学电力系 |
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| 摘 要： | 根据不同频率振荡模式的正交性质，针对第一振荡模式将系统组分成两群，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 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。
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| 关 键 词： | 部分惯量中心 特征根 多机系统 计算 电力系统 |
A PARTIAL CENTER OF INERTIA TRANSFORMATION BASED METHOD FOR CALCULATING EIGENVALUES OF MULTI-MACHINE POWER SYSTEM |
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| Zhao Shuqiang,Chang Xianrong,Pan Yunjiang,Wan Jun,He Renmu.A PARTIAL CENTER OF INERTIA TRANSFORMATION BASED METHOD FOR CALCULATING EIGENVALUES OF MULTI-MACHINE POWER SYSTEM[J].Automation of Electric Power Systems,1998,22(9):43-45,76. |
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| Authors: | Zhao Shuqiang Chang Xianrong Pan Yunjiang Wan Jun He Renmu |
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| Abstract: | 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. |
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| Keywords: | the division of generator groups partial center of inertia swing mode eigenvalue |
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