基于空间电压矢量的电压前馈死区补偿方法研究与实现  

Study and Implementation of Voltage Feed-Forward Dead Time Compensation Method Based on SVPWM

作　　者：陈小佳[1] 黄苏融[1] 洪文成[1] 邹海晏[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072

出　　处：《电机与控制应用》2009年第4期6-9,共4页Electric machines & control application

基　　金：国家自然科学基金项目(50277024);国家863节能与新能源汽车重大项目课题(2006AA11A168)

摘　　要：为减小逆变器死区效应引起的电压、电流畸变及电机转矩脉动的影响,提出一种基于空间电压矢量脉宽调制(SVPWM)的电压前馈型死区补偿方法。该方法依据电流环的给定电流来确定电流矢量的位置;并以此加入电压前馈来削弱逆变器输出的5、7次谐波电流,从而减小谐波电流对电机电磁转矩脉动的影响。永磁同步电机系统死区补偿仿真及试验结果验证了该方法的有效性。To reduce the voltage distortion, current harmonics and torque ripple caused by the dead time effects, a voltage feed-forward dead time compensation method based on SVPWM is presented. With the position of the given current vector of the current loop, this method can decrease the 5th and 7th harmonic currents by applying the feedforward voltage to the voltage vector, and then reduce it＇ s effects to the torque ripple. The simulation results and experiment results verify the effectiveness of this method.

关 键 词：空间电压矢量脉宽调制 死区补偿 电压前馈 

分 类 号：TM301.2[电气工程—电机]