A method for suppressing torque ripple of stator permanent magnet memory motor
A memory motor and torque ripple technology, applied in the field of electric transmission, can solve the problems that the research of drive control system is still in the preliminary stage
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[0048] The technical solution of the present invention will be further introduced below in combination with specific implementation methods and accompanying drawings.
[0049] This specific embodiment discloses a method for suppressing torque ripple of a stator permanent magnet memory motor, such as figure 1 shown, including the following steps:
[0050] S1: According to the magnetization state of the permanent magnet, choose ψ pm (i f0 ), ψ pm (i f1 )……ψ pm (i f(k-1) ), ψ pm (i fk ) a total of k+1 permanent magnet flux linkages, and ψ pm (i f(j-1) )>ψ pm (i fj ), 1≤j≤k, and according to the DC bus voltage U dc , rated phase current I n , Quadrature axis inductance L at the jth magnetization state q (j) and permanent magnet flux linkage ψ pm (i fj ) to calculate the rotational speed ω ej , and then the permanent magnet flux linkage ψ pm (i f0 ), ψ pm (i f1 )……ψ pm (i f(k-1) ), ψ pm (i fk ) and the corresponding speed ω e0 , ω e1 ... ω e(k-1) , ω ek...
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