【摘要】 在直驱风力发电系统中,双PWM变流器是实现能量转换的重要部件。文中分析了直驱型风力发电系统原理,为了实现最大风能捕获和提高系统输出的电能质量,在机侧和网侧变流器分别运用直接转矩控制(DTC)和直接功率控制(DPC),使其统一协调控制。在MATLAB/Simulink中进行仿真研究,分析和研究表明,控制方案可有效地实现最大风能捕获,直流母线电压稳定,具有良好的动态响应。更多还原

【Abstract】 The double PWM converter is the important part of energy conversion in the direct drive wind power system.The principle of direct drive wind power system is analyzed.In order to achieve the maximum wind power capture and improve the quality of the output power of the system,the method using the direct torque control(DTC) in the machine side and the direct power control(DPC) in the nets side converter is proposed.The simulation using the MATLAB/Simulink shows that the control scheme can effectively capture the maximum wind with stable DC bus voltage and good dynamic response.更多还原