含MMC交直流输电系统短路电流计算方法

高熠莹; 韩奕; 刘昕宇; 徐政; 张尚; 张玉红

doi:10.19912/j.0254-0096.tynxb.2021-0009

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (8) : 17-23. DOI: 10.19912/j.0254-0096.tynxb.2021-0009

含MMC交直流输电系统短路电流计算方法

高熠莹¹, 韩奕¹, 刘昕宇², 徐政², 张尚¹, 张玉红¹

作者信息 +

SHORT-CIRCUIT CURRENT CALCULATION METHOD FOR AC/DC POWER TRANSMISSION SYSTEMS WITH MMC

Gao Yiying¹, Han Yi¹, Liu Xinyu², Xu Zheng², Zhang Shang¹, Zhang Yuhong¹

Author information +

文章历史 +

摘要

该文基于模块化多电平换流器（MMC）的工作原理和暂态特性,对比了故障时MMC输出的短路电流与同步机电源输出的短路电流的异同,提出MMC短路电流计算模型。在分析MMC参与交流系统短路电流计算的机理后,提出采用叠加原理的含MMC电网短路电流的迭代计算方法,最后,基于PSCAD/EMTDC验证了该文所提算法的有效性。

Abstract

Based on the operating principles and transient characteristics of MMC （Modular Multilevel Converter）, by comparing the short-circuit current of MMC and synchronous generators, and the short-circuit current calculation model of MMC is proposed. After analyzing the mechanism of MMC participating in the calculation of AC system short-circuit current, based on superposition principle, an iterative algorithm for short-circuit current of power grid with MMC is proposed. Finally, based on PSCAD/EMTDC, the effectiveness of the proposed calculation method is verified.

导出引用

高熠莹, 韩奕, 刘昕宇, 徐政, 张尚, 张玉红. 含MMC交直流输电系统短路电流计算方法[J]. 太阳能学报. 2022, 43(8): 17-23 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0009

Gao Yiying, Han Yi, Liu Xinyu, Xu Zheng, Zhang Shang, Zhang Yuhong. SHORT-CIRCUIT CURRENT CALCULATION METHOD FOR AC/DC POWER TRANSMISSION SYSTEMS WITH MMC[J]. Acta Energiae Solaris Sinica. 2022, 43(8): 17-23 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0009

中图分类号： TM744

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