紧凑型线路参数特性对次同步谐振问题的影响

CHAI Xuzheng; LIU Shiyu; JIANG Qirong; XIE Xiaorong; LIANG Xidong

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紧凑型线路参数特性对次同步谐振问题的影响

更新时间：2025-08-13

- 紧凑型线路参数特性对次同步谐振问题的影响
- Automation of Electric Power Systems Vol. 31, Issue 10, Pages: 11-15(2007)
- 作者机构：
  
  清华大学电机系电力系统国家重点实验室,北京市,100084
- 作者简介：
- 基金信息：
- DOI：
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- Published：2007
- 稿件说明：
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CHAI Xuzheng, LIU Shiyu, JIANG Qirong, et al. [J]. Automation of electric power systems, 2007, 31(10): 11-15.
DOI：

CHAI Xuzheng, LIU Shiyu, JIANG Qirong, et al. [J]. Automation of electric power systems, 2007, 31(10): 11-15. DOI：

摘要

紧凑型输电线路的电气参数与常规输电线路存在较大差异，因此分析其参数特性对次同步谐振（SSR）问题的影响，探讨应用串联补偿的紧凑型输电线路进行火电厂送出在SSR问题方面的利弊具有实际意义。以中国上都电厂二期送出的实际情况为背景，采用特征值分析法对问题进行分析，考虑了常规输电线路、紧凑型输电线路和高自然功率紧凑型输电线路参数条件下的SSR问题。研究结果表明:紧凑型输电线路可以比常规输电线路提供更宽的不发生SSR的串补度范围，加之其本身相当于常规线路27%补偿度的线路电感参数特性，使其在某些输送能力要求下采用合适的补偿方案可以避免SSR，同时也为采用大比例固定串补与小比例可控串补结合的方案抑制SSR的发生提供了较好的经济前景。

Abstract

As the parameter characteristics of compact transmission lines are quite different from those of conventional transmission lines， a study of their influence on sub-synchronous resonance（SSR）， the advantages and disadvantages of some series-compensated compact transmission lines for the heat-engine plant is of practical significance. With the transmission scheme of Shangdu Plant ProjectⅡ as our background and adopting the method of eigenvalue analysis， an investigation is made on the SSR in the compact transmission lines， conventional transmission lines and high surge-impedance-loading compact transmission lines. The results show that compact transmission lines are capable of providing a wider range for a SSR-free series compensation ratio than conventional transmission lines. What with the impedance of only 73% of the conventional transmission lines， compact transmission lines have good prospects for application in choosing appropriate compensation schemes and preventing SSR by TCSC.

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