四川水力发电2024，Vol.43Issue(z1)：154-159,6.
基于修正开关函数的LCC-HVDC整流站直流侧阻抗建模
DC Side Impedance Modeling of LCC-HVDC Rectifier Station Based on Modified Switching Function
张海川 1杨武 1李家银 1廖伟1
作者信息
- 1. 雅砻江流域水电开发有限公司,四川 成都 610051
- 折叠
摘要
Abstract
Domestically,LCC-HVDC has been widely used due to its advantages of large transmission capacity and long distance.The converter is the junction of AC and DC system,whose precise model is of great signifi-cance.A modified switching function model is proposed by equalizing the leakage inductance of transformer in converter station to DC side.In this model,the commutation process of converter station is considered,so that the steady state DC voltage can be calculated accurately.Then,based on aforementioned modified switching function model,the low frequency impedance model of rectifier station in LCC-HVDC is established.Finally,using the Cigre Benchmark model built in PSCAD/EMTDC,the proposed models are verified,and the results prove the correctness of the models.关键词
电网换相换流器高压直流输电/开关函数/低频阻抗建模/小信号模型Key words
LCC-HVDC/Switching function/Low frequency impedance modeling/Small signal modeling分类
信息技术与安全科学引用本文复制引用
张海川,杨武,李家银,廖伟..基于修正开关函数的LCC-HVDC整流站直流侧阻抗建模[J].四川水力发电,2024,43(z1):154-159,6.
