Magnetization state selection and weak magnetic control coordinated control method of stator permanent-magnet memory motor
A magnetization state, memory motor technology, applied in the field of electrical transmission, can solve the problem of sacrificing the torque output capacity of the motor
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[0047] The technical solution of the present invention will be further introduced below in combination with specific implementation methods and accompanying drawings.
[0048] This specific embodiment discloses a method for coordinated control of magnetization state selection and field-weakening control of a stator permanent magnet memory motor, such as figure 1 shown, including the following steps:
[0049] S1: According to the magnetization state of the permanent magnet, choose ψ pm (i f1 )……ψ pm (i f(k-1) ), ψ pm (i fk ) a total of k permanent magnet flux linkages, and ψ pm (i f(j-1) )>ψ pm (i fj ), 2≤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 f(j) ) to calculate the rotational speed ω e(j) , while using the permanent magnet flux linkage ψ when the permanent magnet is in the saturation magnetization state pm (i f1 ) and ...
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