电工技术学报2016，Vol.31Issue(14)：93-103,11.
一种储能改善低电压穿越期间风电场注入电流特性的致稳策略
Stability Control for Improving the Characteristic of Wind Farm Injection Current During Low Voltage Ride-Through Using Energy Storage System
摘要
Abstract
According to the grid codes, wind farms must inject reactive power current into power grid during the low voltage ride-through (LVRT) process. This would lead to instability of the wind power system and the LVRT failure of wind farm. A state space model of wind power system including the phase locked loop at the low voltage state was established in this paper, to analyze the instability phenomenon. Then the reasons of the instability phenomenon were well revealed. Finally, a stability control strategy was proposed to improve the stability of the wind power system by utilizing the energy storage system. Simulation results show that the state model of the wind power system at low voltage state can represent the small disturbance stability characteristic of the system. The energy storage system could effectively improve the injection current feature of wind power system and accordingly improve the system stability.关键词
低电压穿越/储能/锁相环/注入电流/频率Key words
Low voltage ride-through/energy storage/phase locked loop/injection current/frequency分类
动力与电气工程引用本文复制引用
刘巨,姚伟,侯云鹤,劲宇,陈霞..一种储能改善低电压穿越期间风电场注入电流特性的致稳策略[J].电工技术学报,2016,31(14):93-103,11.基金项目
国家重点基础研究发展计划（973计划）（2012CB215106）和国家自然科学基金（51577075）资助项目。 （）
