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首页> 外文期刊>Electrical engineering in Japan >Fast Electromagnetic Transient Simulations of Power Systems Utilizing Single-Phase Phasor-Based Modeling of Remote Systems
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Fast Electromagnetic Transient Simulations of Power Systems Utilizing Single-Phase Phasor-Based Modeling of Remote Systems

机译：利用基于单相相量的远程系统建模的电力系统快速电磁暂态仿真

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摘要

Electromagnetic transient (EMT) simulations of relatively large power systems have become quite common, for instance, in the case where simulations of HVDC converters are carried out with large ac power systems connected to the converters. Thus, the increase in computation time is a serious concern. To reduce computation time, this paper proposes a method to reduce computational demand of a remote power system which is located far from the source of a transient event to be simulated. In the proposed method, the remote power system, which is supposed to be represented by a three-phase EMT-based model, is reduced to a single-phase phasor-based model, and the size of the circuit to be simulated is thus reduced and the dynamics calculations of inductors and capacitors included in the remote power system are neglected. The calculation algorithm of generator models included in the remote power system is also simplified. The proposed method has been applied to EMT simulations of the WEST 10 benchmark power system prepared by the IEEJ, and it has been shown that the computation time is remarkably reduced without significant loss of accuracy if the portion assumed to be the remote power system is sufficiently far from the source of a transient event.
机译：相对较大的电源系统的电磁暂态（EMT）模拟已变得非常普遍，例如，在使用连接到转换器的大型交流电源系统进行HVDC转换器的模拟的情况下。因此，增加计算时间是一个严重的问题。为了减少计算时间，本文提出了一种减少远程电力系统的计算需求的方法，该电力系统远离要模拟的瞬态事件的源头。在提出的方法中，原本应该由基于三相EMT的模型表示的远程电力系统简化为基于单相相量的模型，从而减小了要模拟的电路的尺寸忽略了远程电源系统中包含的电感器和电容器的动力学计算。还简化了包含在远程电力系统中的发电机模型的计算算法。所提出的方法已应用于IEEJ编制的WEST 10基准电力系统的EMT仿真，并且已经表明，如果假定作为远程电力系统的部分足够多，则可以显着减少计算时间，而不会显着降低精度远离瞬态事件的来源。

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