具有直流励磁的开关磁阻电机解析模型

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娄伟,孙建忠,白凤仙,张莉.具有直流励磁的开关磁阻电机解析模型[J].,2016,56(1):50-55

具有直流励磁的开关磁阻电机解析模型

Analytical model of switched reluctance motor with DC assisted excitation

DOI：10.7511/dllgxb201601008

中文关键词:SRDC电机 dq 模型正交磁耦合转矩控制

英文关键词:switched reluctance motor with DC assisted excitation (SRDC motor)dq model cross magnetization torque control

基金项目:国家自然科学基金资助项目(50977005)；辽宁省自然科学基金资助项目(20102036).

作者	单位
娄伟,孙建忠,白凤仙,张莉

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中文摘要:

建立了具有直流励磁的开关磁阻电机(SRDC电机)的采用正弦波双极性激励时的 dq 模型，对其转矩产生机理和转矩控制方法进行了深入分析，发现SRDC电机存在导致 d 轴和 q 轴互感的正交磁耦合现象，而正交磁耦合正是造成SRDC电机在采用矢量控制时仍存在转矩脉动的原因．分析表明，SRDC电机的转矩包括平均转矩和脉动分量两部分，其平均转矩与直流励磁磁链和 q 轴电流的乘积成正比；其转矩的脉动分量是随转子位置角变化的三次谐波，平均值为0．因此，i d=0矢量控制是SRDC电机的最佳控制模式．

英文摘要:

The dq model of switched reluctance motor with DC assisted excitation (SRDC motor) under AC sinusoidal bipolar excitation is built up, the torque production mechanism and control method of the motor are comparatively studied. Cross magnetization, which leads to mutual inductance in d -axis and q -axis, is the primary reason for torque ripple of SRDC motor using vector control. The torque produced by SRDC motor consists of two parts:the average torque component and the ripple one. The former is proportional to the product of the DC excitation flux linkage and the q -axis current, and the latter is triple-angle harmonics with zero average value. It can be concluded that i d=0 vector control is the most suitable control strategy for the motor.

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具有直流励磁的开关磁阻电机解析模型

本站小编 Free考研考试/2024-01-16

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