风-火互补发电系统区域频率控制的策略研究

Research on area frequency control strategy of wind-fire hybrid power generation system

风能与传统能源互补发电给互联电网各方带来了巨大的安全经济效益,对互联电网频率控制的分析与研究是电力系统不可忽视的部分。讨论了发电系统的一次调频和二次调频,分析加入风力发电后,风-火互补发电的区域频率控制,给出模型方案(增加PI调节环节进行改进),对其中的三种控制模式(TBC-FTC、TBC-FFC、TBC-TBC)进行研究。仿真图及仿真结果数据验证了风-火互补发电的区域频率控制的可行性。与传统的单区域频率调节相比,加入了风电的多区域频率控制能改善频率调节的性能。

Wind and traditional energy hybrid power generation will bring to great safety economic benefit for interconnected power grid, the analysis and study of interconnected power grid frequency control not be ignored in power system. This paper discusses primary and secondary frequency control of power generation systems, analyzes wind and fire hybrid area frequency control after joining wind power, gives model scheme（increased PI regulation units）, and studies three control modes（TBC-FTC, TBC-FFC, TBC-TBC）. Simulation diagrams and simulation results verify the feasibility of the wind-fire hybrid power generation area frequency control. Compared with the traditional single area frequency regulation, joining area frequency control of wind power improves the performance of frequency control.