三电平矿用异步电机DTC优化方法的研究  

Research on Optimization Method of Direct Torque Control of Three-level Induction Motor for Mine

作　　者：王俊鹏[1] 刘建[1] 张正坤 赵华东[1] 许云旺 WANG Jun-peng;LIU Jian;ZHANG Zheng-kun;ZHAO Hua-dong;XU Yun-wang(Shandong University of Science and Technology, Qingdao 266590, Chin)

机构地区：[1]山东科技大学,山东青岛266590

出　　处：《煤炭技术》2018年第7期243-245,共3页Coal Technology

摘　　要：在建立矿用异步电机数学模型,研究三电平逆变器空间电压矢量和分析异步电机直接转矩控制(DTC)原理的基础上,针对三电平矿用异步电机DTC系统中点电位不平衡的问题,提出了优化固定合成矢量序列的方法,并通过MATLAB/Simulink进行仿真。仿真结果表明,采用该优化方法既可以有效地控制中点电位平衡,也可以使系统保持良好的运行性能。The mathematical model of the induction motor for mine is established, the space voltage vector of the three-level inverter and the direct torque control principle of the induction motor are studied. It presents a optimization method based on fixed synthesis vector to solve the problem of the neutral voltage imbalance in direct torque control of three-level mine induction motor and the simulation experiment was carried out by MATLAB/Simulink. Simulation results show that, the optimization method can effectively control the neutral potential equilibrium and the system obtains good static and dynamic performance in the same time.

关 键 词：矿用 异步电机 直接转矩控制 中点电位 合成矢量 

分 类 号：TD614[矿业工程—矿山机电] TM343[电气工程—电机]