直流输电系统平波电抗器电感参数的选择研究 - 中国电机工程学会.pdf

直流输电系统平波电抗器电感参数的选择研究 1 2 杨汾艳 ，徐 政 1. 广东电网公司电力科学研究院，广州510600 2. 浙江大学电气工程学院，杭州 310027 Research on selection of the smoothing reactance for HVDC projects 1 2 YANG Fenyan ，XU Zheng 1. Electric Power Research Institute of Guangdong Power Grid Corporation ，Guangzhou 510600, 2. College of Electrical Engineering, Zhejiang University, Hangzhou 310027 [1] ABSTRACT ：Relevant research is carried out on 流设备制造国产化两大范畴 ，其中换流 selection of the smoothing reactance for HVDC 站主回路以系统复杂、设备技术水平高、 projects. The concept of current slope factor is 投资巨大而成为直流输电系统的关注中 introduced for measuring the effect that the smoothing 心。主回路参数关系整个直流输电系统的 reactor inhibits the fault current’s raising. And the 运行性能和技术经济指标，是直流输电系 relationship that DC current varies with current slope 统设计的主要部分。 factor during the course of fault is derived. Next, an 作为直流输电系统主回路的重要元件 之一，平波电抗器一般串接于每极换流站 integrated expression is deduced for selecting the 和直流线路之间。平波电抗器的电压和电 reactance of the smoothing reactor, with the main 流额定值通常根据直流主回路来确定，因 restrictions on the smoothing reactance considered. 此对平波电抗器的设计，主要应考虑电感 Finally, the proposed principle for parameter selection 值的选取。平波电抗器电感值的选择是一 is verified, taking Ge-Nan HVDC project as an 项关键的任务，需根据各限制因素加以权 example. 衡[2] 。 Key words: HVDC; smoothing reactor; parameter 关于平波电抗器电感值的选择，国内 selectio