大规模电网电磁暂态快速仿真方法

doi:10.3969/j.issn.1000-7229.2015.12.003

摘要/Abstract

摘要：

随着与直流输电、柔性交流输电等相关的电力电子装置广泛应用于电力系统，电磁暂态仿真逐步成为电力系统分析的重要工具。然而，由于电磁暂态仿真选取的步长小，占据的内存大，计算速度慢，仿真规模受到了限制。基于坐标系旋转变换的思想，通过旋转变换降低信号的频率，提出了一种快速的大步长仿真方法。与机电暂态仿真相比，本方法可以体现系统的电磁暂态行为，提高了仿真精度，与传统的电磁暂态仿真相比，提高了仿真速度。

关键词: 大规模电网, 电磁暂态仿真, 快速仿真

Abstract:

With the wide application of power electronic devices in power system, such as high voltage direct current （HVDC）, flexible AC transmission systems （FACTS） and so on, the electromagnetic transients program （EMTP） gradually becomes an important tool for power system analysis. However, the simulation scale of EMTP is limited due to the small time step, occupying large memory and slow computing speed. Based on the rotating transformation of single phase coordinate, this paper proposed a fast simulation method with large time step, which could reduce the signal frequency through the rotation transform. Compared with the electromechanical transient simulation, this method can reflect the electromagnetic transient behavior of the system and improve the simulation accuracy. It also can improve the simulation speed compared with the traditional electromagnetic transient simulation.

Key words: large-scale power system, electromagnetic transient simulation, fast simulation

中图分类号:

TM 743

姚蜀军，韩民晓,汪燕,万磊. 大规模电网电磁暂态快速仿真方法[J]. 电力建设, 2015, 36(12): 16-21.

YAO Shujun, HAN Mingxiao, WANG Yan,WAN Lei. A Fast Electromagnetic Transient Simulation of Large-Scale Power System[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(12): 16-21.

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