基于双极性功率变换器的开关磁阻电机DITC控制  

DITC Control of Switched Reluctance Motor Based on Bipolar Converters

作　　者：熊树[1] 夏新祥 张赫 XIONG Shu;XIA Xinxiang;ZHANG He(School of Physics and Electronic Electrical Engineering,Huaiyin Normal University,Huaian 223300,Jiangsu,China;School of Electrical and Power Engineering,China University of Mining and Technology,Xuzhou 221116,Jiangsu,China)

机构地区：[1]淮阴师范学院物理与电子电气工程学院,江苏淮安223300 [2]中国矿业大学电气与动力工程学院,江苏徐州221116

出　　处：《电气传动》2020年第7期19-24,共6页Electric Drive

摘　　要：开关磁阻电机一般采用不对称半桥功率变换器,相对于电压源型逆变器VSI系统成本较高。双极性变换器在标准VSI的基础上增加1个桥臂,使开关磁阻电机绕组的退磁和励磁的电压都能达到直流侧幅值,同时大大降低了系统成本。提出了基于双极性功率变换器开关磁阻电机直接瞬时转矩控制方法,给出了双极性变换器DITC控制不同开关状态选择依据,分析了不同工作状态下电流变化情况。最后对所提方法进行实验,验证了其有效性。Switched reluctance motors(SRM)generally use asymmetric half-bridge power converters,which are relatively expensive compared to the VSI system.On the basis of the standard VSI,the bipolar converters adds a bridge arm which can enable the demagnetization and excitation voltages of SRM reach the full DC amplitude and greatly reduce system cost.A direct instantaneous torque control(DITC)method of switched reluctance motor based on bipolar power converter was presented.The DITC control of different switching states and the current changes under different working conditions were analyzed.Finally,the validity of the proposed method was verified by experiment.

关 键 词：开关磁阻电机 直接瞬时转矩控制 双极性功率变换器 转矩控制 

分 类 号：TM352[电气工程—电机]