PWM逆变器的定向矢量控制策略

On Vector Oriented Control of Voltage Source PWM Inverter

针对风力发电并网的优化问题。提出了三相电压源脉冲宽度调制(PWM)逆变器的定向矢量控制技术,并设计了数字控制的变换器-逆变器系统。给出了该变换器和逆变器的数学模型。提出了一种定向矢量控制的方案来实现对风能并网的控制策略。为了检验该系统的动态性能,采用MATLAB7/SIMULINK程序进行了仿真。仿真结果表明,提出的控制系统模型在不同的干扰下都展现出其良好的性能。

This paper analyzes the design and simulation of vector oriented control of three-phase voltage source pulse-width modulation （PWM） inverter which aims to optimize the utilization of wind power injected into the grid. To realize this goal, a digitally controlled converter-inverter system is proposed which provides economical utilization of the wind generator. In order to examine the dynamic performance of the system, its model is simulated and results are analyzed. The simulation results are given using MATLAB7/SIMULINK program. The results for different disturbance conditions show good performance of this proposed control algorithm.