电网技术2017，Vol.41Issue(10)：3216-3222,7.DOI:10.13335/j.1000-3673.pst.2017.0322
长控制链路延时特征下柔性直流输电系统动态性能改善方法
Dynamic Performance Optimization of VSC-HVDC Considering Its Long Delay
邹常跃 1陈俊 1许树楷 1杨煜 1李巍巍 1黄润鸿1
作者信息
- 1. 直流输电技术国家重点实验室(南方电网科学研究院有限责任公司),广东省 广州市 510080
- 折叠
摘要
Abstract
Delay in VSC-HVDC system is considerable because its control is distributed in several different controllers and amount of communication data between controllers are large. In general, the delay is much larger than one control period. Delay increment deteriorates dynamic performance and may even cause system instability. A phase correction method without affecting magnitude-frequency response is proposed. Firstly, universality of the method is analyzed. Then the correction method is applied to system stability analysis of a real back-to-back MMC project. Effects and limitations of the method are presented. At last, real-time simulation based on controllers used in the project and grid-fault test in industrial application shows that reasonable configuration of phase correction will improve fault ride through capability of the system and increase its success rate.关键词
相位校正/稳定性/延时/柔性直流输电Key words
phase correction/stability/delay/VSC-HVDC分类
信息技术与安全科学引用本文复制引用
邹常跃,陈俊,许树楷,杨煜,李巍巍,黄润鸿..长控制链路延时特征下柔性直流输电系统动态性能改善方法[J].电网技术,2017,41(10):3216-3222,7.
