吴跨宇,房乐,卢岑岑,沈轶君
WU Kuayu,FANG Le,LU Cencen,SHEN Yijun

• 1:国网浙江省电力有限公司电力科学研究院

摘要(Abstract)：

特高压直流站装设的大型调相机本质上是一台挂网运行且不带机械负荷的同步电动机,其励磁控制与无功电压综合控制的目的是为换流站交流母线提供快速、大额的动态和暂态无功电压支撑。在此分析了大型调相机与常规发电机励磁主环和辅环控制方面的差异,提出了励磁系统调差和低励限制等的配置方法、参数整定原则。针对调相机定位于快速动态和暂态无功电压支撑而不承担换流站无功基荷的特点,提出了一种基于励磁AVR的调相机综合无功电压控制方法,既可以保证调相机在AVR模式下具有快速响应能力,又能保证其长期稳态运行在设定无功目标。此处提出的励磁控制策略和无功电压综合控制策略可供换流站大型调相机励磁系统设计参考。
Large synchronous compensator installed in UHVDC station essentially is a synchronous motor with no mechanical load. The purpose of its excitation control and reactive voltage integrated control is to provide fast, large amount of dynamic and transient reactive voltage support for AC busbar of converter station. In this paper, the difference of excitation main ring and auxiliary loop control between large synchronous compensator and conventional generator is analyzed, and the configuration method and parameter setting principle of excitation system adjustment difference and low excitation limit are put forward. In view of the fact that the synchronous compensator is located in the fast dynamic and transient reactive power and voltage support without bearing the reactive load of the converter station, a comprehensive reactive voltage control method based on excitation AVR is proposed in this paper. It can not only guarantee the fast response ability of the synchronous compensator in AVR mode, but also ensure the long-term steady-state operation in the setting of reactive power target. The proposed excitation control strategy and reactive voltage integrated control strategy can be used as a reference for the design of excitation system for large synchronous compensators in converter stations.

关键词(KeyWords)： 直流换流站;调相机;励磁系统;无功电压控制;控制策略
HVDC converter station;synchronous compensator;excitation system;reactive voltage control;control strategy

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 吴跨宇,房乐,卢岑岑,沈轶君
WU Kuayu,FANG Le,LU Cencen,SHEN Yijun

DOI: 10.19585/j.zjdl.201802008

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