摘要
本文以双PWM变换器控制的直驱式永磁同步风力发电系统为研究对象。介绍了系统各组成部分的数学模型;确定了基于最优叶尖速比的最大功率点跟踪(MPPT);设计了基于直接转矩控制(DTC)系统,在此基础上提出一种新的转子位置估计方法,并在Matlab/Simulink中搭建了直驱风电系统的仿真模型进行验证,仿真结果表明系统能够实现最大功率追踪,实现无传感器直接转矩控制,且动静态性能良好。
This paper based on the dual PWM converter to control of direct drive permanent magnet synchronous wind power generation system as the research object, introduced the system of the mathematical model of each component, determined the best wind energy capture strategy based on optimal tip speed ratio, designed a control system based on direct torque control strategy. Based on these advances, this paper proposed a new method of rotor position estimation. In the end, build a simulation model in Matlab/Simulink to validate direct drive permanent magnet synchronous wind power generation system. The result shows that the system can achieve maximum power tracking, realized sensorless direct torque control and have a good dynamic and static performance.
出处
《电气技术》
2014年第1期7-10,共4页
Electrical Engineering
