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电网技术  2006 

特高压远距离大容量云电送粤中的稳定问题研究

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Keywords: 特高压,直流输电,云南电网,电力系统,稳定

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Abstract:

云电送粤特高压直流输电嵌入交流系统运行,将使送端云南电网面临诸多挑战,其中涌现出的若干稳定问题将对送端电网的安全稳定运行产生重大的影响,亟待深入的分析和研究。介绍了送端云南电网的特点,并分析了云广特高压系统投运后,云南电网将面临交直流相互影响、直流潮流转移导致的电网稳定问题以及送端电网的高周问题。提出针对这些问题的部分研究思路和内容,包括建立全电磁暂态仿真平台开展交直流相互影响的研究;从暂态稳定、电压稳定和低频振荡3方面研究云南电网潮流转移中的系统稳定问题;针对电网高周问题,以机理分析为基础,开展云南电网高周协调控制策略的研究工作。

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