中国电机工程学报2024，Vol.44Issue(14)：5441-5450,中插1,11.DOI:10.13334/j.0258-8013.pcsee.230317
经LCC-HVDC输电送出系统单端混合等值计算
Single Terminal Mixed Equivalence Calculation of Power Transmission System via LCC-HVDC
摘要
Abstract
The dynamic equivalent calculation of the existing line commutated converter based HVDC(LCC-HVDC)transmission system depends on the synchronous real-time measurement of the voltage at the sending and receiving ends,and it is impossible to realize the single-end transient equivalent calculation of the transmission system through LCC-HVDC.Based on the dynamic phasor equivalent calculation framework of the DC system,the paper proposes an equivalent calculation scheme of the DC transmission system through LCC-HVDC based on the single-terminal AC voltage information of the inverter side only,demonstrates the feasibility of the hybrid equivalent calculation framework of the quasi-steady state model of the rectifier side and the dynamic phasor model of the inverter side,solves the key problems such as accurate identification of commutation failure,as well as compares and analyzes the multi-scenario faults through simulation.It is proved that the proposed calculation framework can achieve accurate real-time calculation of the response of LCC-HVDC transmission system under the large transient disturbance of AC line fault at the receiving end when the information of the AC system at the sending end is missing.关键词
高压直流输电/动态相量/单端等值/换相失败Key words
HVDC transmission/dynamic phasor/single-end equivalence/commutation failure分类
信息技术与安全科学引用本文复制引用
王宾,何小才..经LCC-HVDC输电送出系统单端混合等值计算[J].中国电机工程学报,2024,44(14):5441-5450,中插1,11.基金项目
国家自然科学基金项目(52077116) （52077116）
国家电网有限公司科技项目(5100-202199511A-0-5-ZN). Project Supported by National Natural Science Foundation of China(52077116) （5100-202199511A-0-5-ZN）
Science and Technology Project of State Grid Corporation of China(5100-202199511A-0-5-ZN). （5100-202199511A-0-5-ZN）
