Cogging force suppression method for flux-switching linear motor
A linear motor, magnetic flux switching technology, applied in the direction of electronic commutation motor control, motor generator control, AC motor control, etc., can solve the problems of cumbersome and unsuitable harmonic current injection process
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[0034] The present invention will be further described below in conjunction with the accompanying drawings.
[0035] Such as figure 1 , Figure 4 Shown is a positioning force suppression method for flux switching linear motors, which uses a new repetitive controller and position recursive control algorithm to achieve the purpose of suppressing positioning force and speed fluctuations, and at the same time realizes no position sensing technology; specifically includes Follow the steps below:
[0036] (1) Speed given signal Output speed reference value v after passing through the new repetitive controller ref , the new repetitive controller is designed as follows:
[0037] first to Perform Laplace transform to obtain v(s), make difference between v(s) and y(s) to obtain e(s), and perform inverse Laplace transform on e(s) to obtain e(t); then set There must be a linear operator T and an inverse operator T -1 ,calculate and then through k RP Adjust the convergence sp...
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