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为深入认识和利用故障分量,提出了以故障分量为求解和分析对象的故障分量计算方法,它根据故障附加网络和故障分量在故障点的边界条件建立网络方程,并使用Newton法求解该方程。所提方法的特点是物理意义明确,省去了由故障全量导出故障分量的中间过程。编程计算结果表明所提算法快速、准确。该方法能够用于计算复杂电力系统简单故障或多重故障的故障分量,也可用于分析和评判基于故障分量的继电保护和各种安全自动装置的性能。
In order to understand and utilize the fault components, a method to calculate and analyze the fault components based on the fault components is proposed. The network equations are established according to the boundary conditions of the additional and fault components at the fault point. The Newton method is used to solve this equation. The proposed method is characterized by a clear physical meaning, eliminating the need to derive the fault component from the full amount of the fault intermediate process. The calculation results show that the proposed algorithm is fast and accurate. The method can be used to calculate the fault components of simple or multiple faults in complex power systems and to analyze and evaluate the performance of fault protection based relays and various safety automation devices.