基于惯量同步的构网型永磁直驱风电机组频率支撑及转速恢复策略
Frequency Support and Speed Recovery Strategy of Grid-forming PMSGs Based on Inertia Synchronization
胡同宇 1杨德健 1钱敏慧 2严干贵 1杨修宇 1桑顺3
作者信息
- 1. 东北电力大学现代电力系统仿真控制与绿色电能新技术教育部重点实验室,吉林吉林 132012
- 2. 可再生能源并网全国重点实验室(中国电力科学研究院有限公司),北京 100192
- 3. 南通大学电气工程学院,江苏南通 226019
- 折叠
摘要
针对风电机组频率响应后有功支撑与转速恢复切换易诱发二次频率跌落的问题,提出了一种考虑转速恢复的构网型风电机组频率支撑策略.首先阐述了构网型风电机组的"惯量同步"原理;其次,基于转子运动方程,分析了构网型风电机组调频及转速恢复策略对频率最低点及二次频率跌落的影响机理;最后,基于PSCAD/EMTDC仿真平台,构建基于惯量同步的构网型风电并网系统,并在不同扰动下验证所提控制策略的有效性.
Abstract
Focusing on the issue of secondary frequency drop induced by the switching between active power support and speed recovery after frequency response in wind turbines,a grid-forming wind turbine frequency support strategy considering speed recovery is proposed.Firstly,the"inertia synchronization"principle of grid-forming wind turbines is elucidated.Secondly,based on the rotor motion equation,the influence mechanism of frequency regulation and speed recovery strategy on the lowest frequency and secondary frequency drop of grid-forming wind turbines is analyzed.Finally,based on the PSCAD/EMTDC simulation platform,a grid-forming wind power system based on inertia synchronization is constructed,and the effectiveness of the proposed control strategy is verified under different disturbances.
关键词
构网型风电机组/惯量同步/转速恢复/频率支撑/频率二次跌落Key words
grid-forming wind turbine/inertia synchronization/speed recovery strategy/frequency support/secondary frequency drop引用本文复制引用
基金项目
国家自然科学基金资助项目(52307208)
吉林省教育厅一般项目(JJKH20240141KJ)
出版年
2024
NETL
NSTL
万方数据