The frequency stability of the power system has always been an important aspect of power system stability research,and load frequency control is an effective means to maintain frequency stability of the power system.PID controller is selected as the load frequency controller of power system,and coati optimization algorithm(COA)is used to optimize the parameters of the controller under four error integral criteria.A comparison will be made between the optimized PID controller(COA-PID)using coati optimization algorithm and the traditional PID controller in controlling the load frequency of the power system.The results show that using COA-PID controller can more effectively achieve load frequency control of the power system,which can effectively reduce the maximum frequency deviation of the system and maintain frequency stability.
关键词
电力系统/负荷频率控制/浣熊优化算法/PID控制器
Key words
power system/load frequency control(LFC)/coati optimization algorithm(COA)/PID controller