附加励磁阻尼控制抑制多模态SSR的机理及其关键技术

XIE Xiaorong; LIU Shiyu; ZHANG Shuqing; GUO Xijiu; LI Yingwei

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附加励磁阻尼控制抑制多模态SSR的机理及其关键技术

更新时间：2025-08-13

- 附加励磁阻尼控制抑制多模态SSR的机理及其关键技术
- Automation of Electric Power Systems Vol. 31, Issue 21, Pages: 10-14(2007)
- 作者机构：
  
  1. 清华大学电机系,北京市,100084
  2. 北方联合电力有限责任公司，内蒙古自治区呼和浩特市,010020
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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XIE Xiaorong, LIU Shiyu, ZHANG Shuqing, et al. [J]. Automation of electric power systems, 2007, 31(21): 10-14.
DOI：

XIE Xiaorong, LIU Shiyu, ZHANG Shuqing, et al. [J]. Automation of electric power systems, 2007, 31(21): 10-14. DOI：

摘要

一些新建的大型煤电基地由于采用较高固定串补度的厂对网远距离大容量输电模式，所引发的多模态次同步谐振（SSR）正成为威胁机组安全和电网稳定的现实难题。以上都电厂串补输电工程（二期）为例，阐述多模态SSR的发生机理，分析采用附加励磁阻尼控制（SEDC）抑制多模态SSR的基本原理及其相对于其他措施的特点和优势，并重点探讨SEDC研发中面临的关键技术问题及其解决思路，为中国自主研发和应用SEDC设备解决SSR问题奠定基础。

Abstract

For some newly-developed large coal-fueled power plants in China， the multi-mode SSR problem caused by the relatively high compensation level of fixed series capacitor in long-distance high-capacity plant-to-grid transmissions， poses a realistic threat to the safety of the turbine-generators and the stability of the grid. Taking the Shangdu series-compensated transmission project（2nd phase） as an example， this paper discusses the mechanism of multi-mode SSR occurrence. Basic principles of supplementary excitation damping control（SEDC）to improve multi-mode torsional damping are studied. Furthermore， several key issues on SEDC and the solutions are discussed. That provides useful guidance of further research and application of SEDC to solve the SSR problems in the power systems in China.

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