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段庆涛,周扬忠.考虑三次谐波转矩的双五相永磁同步电机串联系统直接转矩控制研究[J].电源学报,2019,17(5):186-196
考虑三次谐波转矩的双五相永磁同步电机串联系统直接转矩控制研究
Research on DTC of Two Five-phase PMSM Series-connected System Considering Third-harmonic Torque
投稿时间:2018-09-17  修订日期:2019-03-26
DOI:10.13234/j.issn.2095-2805.2019.5.186
中文关键词:  反电动势非正弦  五相PMSM  双电机串联系统  空间矢量调制  直接转矩控制
英文关键词:non-sinusoidal back electromotive force(EMF)  five-phase permanent magnet synchronous motor(PMSM)  two-motor series-connected system  space vector modulation  direct torque control(DTC)
基金项目:
作者单位E-mail
段庆涛 福建省新能源发电与电能变换重点实验室(福州大学), 福州 350116  
周扬忠 福建省新能源发电与电能变换重点实验室(福州大学), 福州 350116 zhty_75313@sina.com 
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中文摘要:
      针对反电动势非正弦的2台五相永磁同步电机串联驱动系统提出一种3次谐波转矩补偿型直接转矩控制策略。首先通过坐标变换建立了考虑3谐波转矩的双五相PMSM串联系统的数学模型,基于电压矢量对转矩的控制关系,分别在2个子空间计算定子磁链增量的期望值;然后根据2台电机定子电压方程,计算出2个平面内电压矢量参考值,并提出一种占空比调制型空间矢量调制算法;最后,通过仿真与实验验证了所提控制算法的可行性。
英文摘要:
      A third-harmonic torque compensation direct torque control(DTC) strategy is proposed for a series-connected drive system of two five-phase permanent magnet synchronous motors(PMSMs) with non-sinusoidal back electromotive force(EMF). First, the mathematical model of the drive system considering the third-harmonic torque is established th-rough coordinate transformation. Based on the control effect of voltage vectors on the torque, the expectation of stator magnetic flux increment in two subspaces are calculated, respectively. Then, based on the stator voltage equations of two motors, the reference values of voltage vector on two planes are calculated. In addition, a duty modulation type space vector modulation algorithm is proposed. Finally, the feasibility of the proposed control algorithm was verified by simulations and experiments.
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