多端直流输电工程交流滤波器设计与无功补偿研究  

Study on Design and Reactive Power Compensation of AC Filter for Multi⁃terminal DC Transmission Project

作　　者：曹洋 任军辉 张万荣 党瑞 CAO Yang;REN Junhui;ZHANG Wanrong;DANG Rui(Xi’an XD Power System Co.,Ltd.,Xi’an 710075,China)

机构地区：[1]西安西电电力系统有限公司,西安710075

出　　处：《电力电容器与无功补偿》2024年第4期6-11,共6页Power Capacitor & Reactive Power Compensation

摘　　要：多端直流输电系统是实现多个能源、负荷中心跨区域互联的有效技术,在技术性和经济性等方面都具备较强竞争力。笔者以我国企业承建、目前在建的某项海外多端直流输电工程为例,进行多端直流输电工程交流滤波器设计与无功补偿研究。该工程中某换流站是弱交流系统,对电压稳定性要求较高,标称频率为60Hz,设计交流滤波器时采用依照北美惯例的性能指标—IT乘积。介绍了多端系统与双端系统差异,IT乘积的计算假设回路结构,在此基础上针对换流站弱交流系统设计出满足性能要求的交流滤波器,并进行无功补偿研究。研究结果对最终确定实际工程交流滤波器方案具有一定的参考作用。Multi-terminal DC transmission system is an effective technology to achieve cross-regional interconnection of multiple energy and load centers,and it has strong competitiveness in both technical and economical aspects.In this paper,a overseas multi-terminal DC transmission project constructed by Chinese enterprises is taken as an example,the design and reactive power compensation of the AC filter for multi-terminal DC transmission project are studied.A converter station in this project is a weak AC system with high requirement to voltage stability.The nominal frequency of the converter station is 60 Hz.The IT product,the performance index of North American practice,is adopted in the design of the AC filter.In this paper,the difference between multi-terminal and double-terminal system as well as the hypothetical loop structure of IT product are introduced.On this basis,an AC filter meeting the performance requirements are designed and reactive power compensation is studied for the weak AC system of the the converter station.The research results in this paper have a certain reference for the final determination of the practical engineering AC filter scheme.

关 键 词：多端直流输电工程 交流滤波器 性能指标 无功补偿 

分 类 号：TM721.1[电气工程—电力系统及自动化] TN713[电子电信—电路与系统]