空间矢量脉宽调制中电压矢量最优化算法研究  

Optimal Algorithm of Voltage Vector Based on Space Vector Pulse Width Modulation

作　　者：郝双晖[1] 刘杰[1] 蔡一[1] 郝明晖[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,黑龙江哈尔滨150001

出　　处：《南京理工大学学报》2010年第2期213-216,221,共5页Journal of Nanjing University of Science and Technology

摘　　要：在交流伺服系统电流控制的空间矢量脉宽调制中,通常的电压指令限制算法会导致母线电压不能被充分利用,并产生电压矢量方向误差。针对此问题,该文提出了基于线电压限制和相电压中心点平移的最优化算法。一个电角度周期内的分析结果证明,在63.3%的角度区间,最优算法处理后的电压矢量模大于通常方法,母线电压得到充分利用,且没有方向误差。In the space vector pulse width modulation for current control of ac servo system,the usual algorithm that limits voltage reference makes the bus voltage not be used adequately and causes voltage vector direction errors.To solve the problem,this paper proposes an algorithm based on limiting the line voltage and transferring the center point of the phase voltage.The analysis result in one cycle indicates that the voltage vector mode obtained by the proposed algorithm is larger than that obtained by usual method,the bus voltage can be used adequately,and there are no direction errors in 63.3% of cycle.

关 键 词：空间矢量 交流伺服 脉宽调制 电压矢量优化 

分 类 号：TM383.4[电气工程—电机]