Study of Modeling and Intelligent Control on AGC System with Wind Power
作者单位：School of Control and Computer EngineeringNorth China Electric Power University
会议名称：《第26届中国控制与决策会议》
会议日期：2014年
学科分类：08[工学] 0807[工学-动力工程及工程热物理] 0835[工学-软件工程] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
关 键 词：AGC wind power wind turbines clustering cascade control fuzzy PI internal model control
摘 要：In recent years, wind power which is an intermittent and random energy source affects the frequency stability of automatic generation control（AGC） system with the large-scale wind power integration. So, it is necessary to improve the conventional frequency control method and model. Firstly, a dynamic wind farm model is set up based on wind turbines clustering for the accuracy of data in this paper. Secondly, it is analyzed that the difference between multi-area interconnection AGC model and area control error（ACE） with wind farm and without wind farm. Thirdly, an intelligent control strategy of cascade control with outer loop using fuzzy PI algorithm and inner loop using internal model controller is designed to reduce the impacting of wind power changes on AGC system frequency and improve the performance of AGC system. Finally, frequency control effects of conventional AGC system and improved AGC system are contrasted by simulation study of four-area system. It is proved that the improved AGC system has stronger ability to resist fluctuation of wind power and better frequency control performance.