SVPWM调制的直接矢量控制算法研究  

Research on SVPWM modulation algorithm with direct vector control

作　　者：陆原[1] 赵江峰 刘泰廷 Lu Yuan;Zhao Jiangfeng;Liu Taiting(College of Electronic and Information Engineering,Hebei University,Baoding 071002,Hebei,China)

机构地区：[1]河北大学电子信息工程学院,河北保定071002

出　　处：《电测与仪表》2018年第8期87-91,共5页Electrical Measurement & Instrumentation

摘　　要：文中对SVPWM(Space Vector Pulse Width Modulation)调制算法进行了分析,传统的SVPWM算法大多是由α-β坐标中的U_α和U_β来控制调制过程,直接利用SVPWM基本公式控制调制过程因涉及到大量的三角函数运算而不被采用。但文章提出一种直接矢量控制的SVPWM调制算法,使调制过程进一步简化。该算法通过对SVPWM调制基本公式的进一步推导,得出了采样归一化后参考矢量幅度与相邻矢量V_k、V_(k+1),以及旋转角度与作用时间T_k、T_(k+1),之间的关系,最后对该算法进行了SIMULINK仿真及THD(Total Harmonic Distortion)总谐波失真分析并在基于TMS320F28035的DSP开发板上验证了直接矢量控制的SVPWM调制算法的可行性。There is an analysis of the SVPWM(space vector pulse width modulation)algorithm in this paper.Most of the traditional SVPWM algorithms were mostly controlled by Uaa.nd f/p in a-p coordinates.Due to the large number of trigonometric functions,the modulation process of using the basic formula of SVPWM direcdy cannot be adopted.However,a SVPWM modulation algorithm with direct vector control is proposed in this paper.According to the basic principle of SVPWM modulation,the reference vector magnitude,the adjacent vector Vk^Vk+land the relationship between angle of rotation and the interaction time Tk^Tk+1arG obtained,which simplify the modulation process.Finally,through the algorithm of SVPWM modulation circuit of SIMULINK simulation and the analysis of THD(total harmonic distortion),the feasibility of the SVPWM modulation algorithm of direct vector control is verified on DSP development board based on TMS320F28035.

关 键 词：直接矢量控制 SVPWM调制 SIMULINK仿真 THD DSP 

分 类 号：TM921.5[电气工程—电力电子与电力传动]