CAJ | 학술논문

针对开关磁阻电机具有转矩脉动大的缺点,依据空间电压矢量下直接瞬时转矩控制的理论,通过分析采用基本电压矢量存在转矩失控现象的原因,提出了一种优化直接转矩控制的新方案.该方案以基本空间电压矢量为基础,通过适时地采用新增空间电压矢量,同时优化转矩滞环控制器的方法,达到提高直接转矩控制性能的目的.为验证方案的有效性和正确性,以一台三相12/8极开关磁阻电机为控制对象,将新方案与传统直接转矩控制的效果进行了比较.结果证明,新方案有效地抑制了转矩失控现象的产生,并在进一步减小转矩脉动上有明显效果,最终将转矩脉动控制在±1 N·m以内.
침대개관자조전궤구유전구맥동대적결점,의거공간전압시량하직접순시전구공제적이론,통과분석채용기본전압시량존재전구실공현상적원인,제출료일충우화직접전구공제적신방안.해방안이기본공간전압시량위기출,통과괄시지채용신증공간전압시량,동시우화전구체배공제기적방법,체도제고직접전구공제성능적목적.위험증방안적유효성화정학성,이일태삼상12/8겁개관자조전궤위공제대상,장신방안여전통직접전구공제적효과진행료비교.결과증명,신방안유효지억제료전구실공현상적산생,병재진일보감소전구맥동상유명현효과,최종장전구맥동공제재±1 N·m이내.
The main disadvantage of the switched reluctance motor is torque ripple. Based on direct in-stantaneous torque control, the effect of torque ripple was analyzed from the point view of basic space voltage vector. A novel method was proposed for the optimization of the direct controlling torque. It im-proved the performance of the direct controlling torque by increasing space voltage vector and torque hys-teresis - controller. A 12/8 - pole 3 - phase switched reluctance motor was designed to facilitate the veri-fication of the correctness and validity of the proposed method. The simulations of analyzing the direct controlling torque were carried out for the proposed method and the traditional one. The comparison of the results demonstrates that the proposed scheme is valid for restraining uncontrolled torque and further mini-