同步调相机励磁及阻尼电阻对动态运行特性的影响  

Influence of Resistance of Excitation Winding and Damping Winding on Dynamic Operating Characteristic of Synchronous Condenser

作　　者：许国瑞[1] 厉璇 蒲莹 钟启迪 胡一平 刘晓芳[1] XU Guorui;LI Xuan;PU Ying;ZHONG Qidi;HU Yiping;LIU Xiaofang(School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China;State Grid Economic and Technological Research Institute CO.,LTD.,Beijing 102209,China)

机构地区：[1]华北电力大学电气与电子工程学院,北京102206 [2]国网经济技术研究院有限公司,北京102209

出　　处：《华北电力大学学报（自然科学版）》2018年第6期52-58,67,共8页Journal of North China Electric Power University：Natural Science Edition

摘　　要：随着高压直流输电系统容量和电压等级的提高,换流站对无功补偿的容量需求也越来越大。大容量新型同步调相机旨在满足特高压直流换流站的动态无功需求,而调相机的动态无功响应与励磁绕组及阻尼绕组电阻紧密相关。建立了能够精确反映励磁电阻和阻尼电阻对调相机动态特性影响的时步有限元模型,计算了系统电压突降过程中调相机的动态响应时间;对比分析了不同励磁电阻和阻尼电阻对调相机无功响应速度的影响,揭示了调相机机端电压恢复时间随励磁电阻和阻尼电阻变化的规律。研究结果为同步调相机接入特高压直流换流站提供动态无功补偿提供了理论基础。With the increase of the capacity and voltage level of the HVDC system,the capacity of converter station for reactive power compensation also increases.A synchronous condenser with large capacity is designed to meet the dynamic reactive power demand of UHVDC converter station.The transient response of synchronous condenser is closely related to the resistance of excitation winding and damping winding.This paper established a time-step finite element model which can accurately reflect the influence of excitation and damping resistance on the dynamic characteristics of synchronous condenser.The dynamic response time of the synchronous condenser was calculated during voltage sag of the system.The paper also compared and analyzed the influence of different excitation and damping resistance on the response speed of reactive power.The variation laws of voltage recovery time along with the change of excitation resistance and damping resistance were concluded.The research provides a theoretical basis for the synchronous condenser to supply dynamic reactive power compensation for UHVDC converter station.

关 键 词：调相机 无功响应 励磁电阻 阻尼电阻 

分 类 号：TM342[电气工程—电机]