电机与控制学报
電機與控製學報
전궤여공제학보
Electric Machines and Control
2015年
9期
67-72
,共6页
齿槽转矩%永磁驱动器%斜磁极%自适应粒子群算法%有限元法
齒槽轉矩%永磁驅動器%斜磁極%自適應粒子群算法%有限元法
치조전구%영자구동기%사자겁%자괄응입자군산법%유한원법
cogging torque%permanent magnet drive%magnet skewing%adaptive weight particle swarm optimization( AWPSO)%finite element method
针对开槽结构的永磁驱动器存在齿槽转矩的特点,提出一种消弱齿槽转矩的斜极优化方法. 基于傅里叶分解的解析方法推导出具有斜极结构的永磁驱动器齿槽转矩解析表达式,研究了磁极斜极的主要结构参数对齿槽转矩的不同影响. 以永磁驱动器齿槽转矩最小为目标,利用自适应权重粒子群优化算法对其主要结构参数进行优化,得出最优结构参数组合. 最后利用ANSYS有限元仿真计算分析了优化前后永磁驱动器的齿槽转矩,仿真结果表明,优化后的斜极结构显著地消弱了永磁驱动器的齿槽转矩,避免了产生转矩波动,提高了系统的控制精度,证明本文得出的结论是正确有效的.
針對開槽結構的永磁驅動器存在齒槽轉矩的特點,提齣一種消弱齒槽轉矩的斜極優化方法. 基于傅裏葉分解的解析方法推導齣具有斜極結構的永磁驅動器齒槽轉矩解析錶達式,研究瞭磁極斜極的主要結構參數對齒槽轉矩的不同影響. 以永磁驅動器齒槽轉矩最小為目標,利用自適應權重粒子群優化算法對其主要結構參數進行優化,得齣最優結構參數組閤. 最後利用ANSYS有限元倣真計算分析瞭優化前後永磁驅動器的齒槽轉矩,倣真結果錶明,優化後的斜極結構顯著地消弱瞭永磁驅動器的齒槽轉矩,避免瞭產生轉矩波動,提高瞭繫統的控製精度,證明本文得齣的結論是正確有效的.
침대개조결구적영자구동기존재치조전구적특점,제출일충소약치조전구적사겁우화방법. 기우부리협분해적해석방법추도출구유사겁결구적영자구동기치조전구해석표체식,연구료자겁사겁적주요결구삼수대치조전구적불동영향. 이영자구동기치조전구최소위목표,이용자괄응권중입자군우화산법대기주요결구삼수진행우화,득출최우결구삼수조합. 최후이용ANSYS유한원방진계산분석료우화전후영자구동기적치조전구,방진결과표명,우화후적사겁결구현저지소약료영자구동기적치조전구,피면료산생전구파동,제고료계통적공제정도,증명본문득출적결론시정학유효적.
Aiming at the cogging torque on the slotted structure of the permanent magnet drive ( PMD) , a skewing optimization method was proposed. An analytical method based on Fourier series expansion was applied to obtain the mathematical model expression of cogging torque which was related to magnet ske-wing, and the different effect of magnet skewing parameters on cogging torque was discussed. Finally, based on the objective function of the minimization of cogging torques of the PMD, the optimal parameters of the PMD were obtained by adaptive weight particle swarm optimization ( AWPSO) searching. At last, the finite element method was used to calculate the cogging torque of non-optimized and optimized PMD, and the results verify that the cogging torque can be greatly reduced with this optimization method.
