中国电机工程学报2016，Vol.36Issue(15)：4249-4257,9.DOI:10.13334/j.0258-8013.pcsee.152389
一种新型低转矩脉动电励磁双凸极无刷直流电机
A Novel Electro-magnet Doubly Salient Brushless DC Motor With Minimum Torque Ripple
摘要
Abstract
Traditional doubly salient electro-magnetic motor (DSEM) usually adopts 6k/4k stator/rotor pole combination and each excitation coil corresponds with 3k integral multiple armature coils. This configuration inevitably leads to the asymmetry of the magnetic circuits among phases as well as the different rate of change around the maximum and minimum flux linkages, thus causing the asymmetric contour of the electromotive force waveforms. What’s more, the control strategy of three-phase three-state is usually conducted with traditional DSEM, which generates torque gap at the each commutation time when maximum self-inductance arrives, hence leading to the increment of torque ripple. In this paper, a novel 12/10 DSEM has been presented. Based on the mutual complementarities between the windings whose electrical angle difference is 180°, the scheme of series-opposing connection is adopted to create a new DSEM with minimum torque ripple. The results of simulation and experiments demonstrate that: the symmetrical characteristic of flux linkage and EMF waveforms are significantly improved and the self-inductance maintains almost constant with the change of the rotor position angle. Based on that, the control strategy of three-phase six-state is conducted with a prototype, and the torque performance even comparable to permanent magnet brushless DC motor is obtained, thus providing an optimal scheme for DSEM with minimum torque ripple.关键词
转矩脉动/六相/反向串联/互补/三相六状态Key words
torque ripple/six-phase/mutual complementarities/series-opposition/three-phase six-state分类
信息技术与安全科学引用本文复制引用
赵星,周波,史立伟..一种新型低转矩脉动电励磁双凸极无刷直流电机[J].中国电机工程学报,2016,36(15):4249-4257,9.基金项目
国家自然科学基金项目(51477075)；江苏省科技支撑工业项目(BE2014136)；中央高校基本科研业务费专项资金(NP2015205)；江苏省产学研联合创新资金--前瞻性联合研究项目(BY2014003-13)。Project Supported by National Natural Science Foundation of China (51477075) （51477075）
Jiangsu Province Science and Technology Supporting Project for Industrial Applications (BE2014136) （BE2014136）
A Special Fund of Central Universities Basal Research Business (NP2015205) （NP2015205）
Jiangsu Province Cooperative Innovation and Prospective Joint Research Project (BY2014003-13) （BY2014003-13）
