新型续流增磁直流电动机驱动控制系统  

New Enhanced Magnetism Motor Drive Control System

作　　者：李军求[1] 张承宁[1] 邵桂欣[1] 

机构地区：[1]北京理工大学机械与车辆工程学院,北京100081

出　　处：《机械工程学报》2008年第11期197-202,208,共7页Journal of Mechanical Engineering

基　　金：国家高技术研究发展计划(863计划;2002AA501821)资助项目

摘　　要：为消除传统型直流电动机驱动控制系统在电动汽车应用时存在的缺陷,依据弱磁调速的控制思想,研制出新型的续流增磁电动机及其驱动控制系统。依据该电动机控制系统原理图和试验数据,分析系统弱磁调速原理和工作特性。与传统型串励直流电动机相比,该系统在控制思想、控制结构和再生制动性能方面均具有极大的优越性。热量考核试验表明高频工作中的IGBT开关损耗对控制系统温升影响显著。试验结果和装车试验显示,该系统抗干扰能力强、调节速度快、平稳性好,低速增磁增扭和高速弱磁增速的特性能很好地满足电动公交大客车的动力特性要求。To eliminate the deficiencies of the conventional drive control system of direct current （DC） motor for electric transit bus, a new permanent magnetic direct current （PMDC） motor with the enhanced exciting windings is designed, namely, enhanced magnetism motor and its drive control system on the basis of the control idea of speed adjusting with field weakening. On the basis of the schematic diagram of motor control system and the test data, the principle of system speed adjusting with field weakening and the working characteristics are analyzed. Compared to the conventional series excitation DC motor, the enhanced magnetism motor has great advantages in respect of control idea, control structure and regenerative braking performance. Heat verification test shows that the IGBT switching loss in high frequency operation has significant influence on the temperature rise of control system. The test result and service test show that the system has strong anti-jamming ability, fast regulating speed and good stability, and the characteristics of enhanced torque with enhancing magnetism at low speed and enhanced speed with weakening magnetism at high speed can meet the electric transit bus＇s demand of power characteristics very well.

关 键 词：电动公交大客车 续流增磁电动机 开关损耗 尖峰电压 

分 类 号：U469[机械工程—车辆工程]