电力建设2016，Vol.37Issue(11)：101-107,7.DOI:10.3969/j.issn.1000-7229.2016.11.015
基于触发角监测的混合直流输电系统功率稳定策略
Power Stability Control Strategy of Hybrid-HVDC Transmission System Based on Triggering Angle Monitoring
张军 1姚为正 2杨美娟 1吴金龙1
作者信息
- 1. 西安许继电力电子技术有限公司,西安市710075
- 2. 许继集团有限公司,河南省许昌市461000
- 折叠
摘要
Abstract
Hybrid high voltage direct current ( hybrid-HVDC ) system composed of line commutated converter and modular multi-level converter ( LCC-MMC ) combines the merits of both converters, which will be used widely in the future. The stability of power transmission is very critical for hybrid-HVDC system. Firstly, this paper analyzes the operation principle of LCC-MMC hybrid-HVDC system and the conditions of power transmission. Then, the principle and feasibility of triggering angle used as hybrid-HVDC system normal operation criteria are analyzed, and on this basis the coordinated control objective and strategy are proposed for hybrid-HVDC system. Finally, this paper constructs LCC-MMC hybrid-HVDC transmission system and coordinated control simulation model in PSCAD/EMTDC, simulates and verifies the coordinated control strategy. The results show that the triggering angle of LCC-MMC hybrid-HVDC transmission system is sensitive to operation parameters change. The control parameters of both LCC and MMC can be adjusted quickly and accurately by coordinated control system designed on triggering angle analysis. In addition, the system can be restored to steady operation rapidly.关键词
电网换相换流器(LCC)/模块化多电平换流器(MMC)/协调控制/功率传输/触发角Key words
line commutated converter ( LCC )/modular multi-level converter ( MMC )/coordinated control/power transmission/triggering angle分类
信息技术与安全科学引用本文复制引用
张军,姚为正,杨美娟,吴金龙..基于触发角监测的混合直流输电系统功率稳定策略[J].电力建设,2016,37(11):101-107,7.
