摘要
针对Z源逆变器在农用电动车辆的电机驱动系统中的应用现状,通过对当前Z源逆变器控制算法的研究与对比,提出一种改进型的SVPWM控制算法。该算法采用直通零矢量4分段方式和无坐标变换的扇区判断方法,通过设置相同的网络参数进行仿真,改进算法较传统算法使逆变桥母线电压峰值较直流电源电压提高30.61%,电感电流的纹波减小34.07%。最后搭建电机控制实验平台,进一步验证改进算法的正确性。
Aiming at the application status of Z-source inverter in the motor drive system of agricultural electric vehicles,an improved SVPWM control algorithm is proposed by studying and comparing the current Z-source inverter control algorithm.The algorithm adopts the straight through 4 segmentation zero-vector method and the sector judgment method without coordinate transformation.By setting the same network parameters for simulation,the improved algorithm improves the inverter bridge bus voltage peak by 30.61%compared with the traditional algorithm.The ripple of the inductor current is reduced by 34.07%.Finally,the motor control experiment platform was built to further verify the correctness of the improved algorithm.
作者
雷永锋
孙莉莉
Lei Yongfeng;Sun Lili(The Engineering&Technical College,Chengdu University of Technology,Leshan,614000,China)
出处
《中国农机化学报》
北大核心
2019年第5期155-159,共5页
Journal of Chinese Agricultural Mechanization
基金
乐山市科技局项目(18JZD055)
成都理工大学工程技术学院科研基金项目(C122017034)
关键词
农用电动车辆
Z源逆变器
SVPWM
直通4分段
电感电流纹波
agricultural electric vehicle
Z-source inverter
SVPWM
straight through 4 segments
inductor current ripple