永磁风力发电机系统动态仿真

AbstractWith the increasing number of wind turbines in recent years,the responseperformance of wind power converters is becoming more and more urgent.The mainpurpose of this paper is to explore the response performance of 1.5MW wind powergeneration system,analyze the mathematical model of the variable flow system anddetermine the corresponding control strategy,which provides reference for the designof wind power generation system.Based on the theory of permanent magnet synchronous wind power generationsystem,the wind energy utilization coefficient,power and rotational speed curve areobtained by using simulation software Matlab/simulink,and the influence of eachquantity change in the curve on the system is analyzed.The mathematical model ofPMSG is also established.Through the analysis of the mathematical model of themachine side and the network side converter,the control methods of the two sides ofthe converter are explored,and the model of the motor side controller and the networkside controller is established.Finally,the performance analysis of permanent magnet wind power generationsystem shows that the DC bus voltage and inverter side current have great influenceon the system.The model of 1.5MW direct-drive permanent magnet synchronouswind power generation system is further established.The simulation of the windspeed jump on the power generation system shows that the control method is inaccordance with the operating characteristics of the system,and the model alsoconforms to the system requirements.Keywords:Converter Parallel Operation Matlab System model