PMSM (permanent magnet synchronous motor) coordination control optimization method based on mechanical connection
A permanent magnet synchronous motor and synchronous motor technology, applied in the field of power electronics and power transmission, can solve problems such as mathematical models, complex algorithms, large overshoot, slow identification and correction, etc., to reduce the solution order and reduce the amount of calculation , good control performance effect
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[0027] The present invention will be further described below in conjunction with accompanying drawing.
[0028] A method for optimizing the coordinated control of dual permanent magnet synchronous motors based on mechanical coupling, comprising the following steps:
[0029] S10. According to existing methods, design a control algorithm for a single permanent magnet synchronous motor to ensure that a single motor has relatively good control performance:
[0030] Establish the mathematical model of PMSM in the d-q rotating coordinate system; the dynamic mathematical model of a single PMSM in the d-q coordinate system is:
[0031]
[0032] Among them, L sd , L sq Respectively d, q axis inductance, R s is the stator resistance; is the permanent magnet flux; n p is the number of pole pairs; B is the coefficient of friction; J is the moment of inertia; i d ,i q Respectively d, q axis current; u d ,u q Respectively d, q shaft voltage; ω is the rotor angular velocity; T ...
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