Dual three-phase motor minimum harmonic injection over-modulation strategy and carrier wave realization method thereof
A technology of harmonic injection and realization method, applied in motor generator control, electronic commutation motor control, control generator and other directions, can solve the problems of complex SVPWM realization process and other problems
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[0065] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0066] The minimum harmonic injection overmodulation strategy of the dual-three-phase motor and its carrier wave implementation method of the present invention are specifically implemented according to the following steps:
[0067] Step 1. Define the new vector synthesized by the large vector and medium vector in the same direction of the two-three-phase permanent magnet synchronous motor mapped to the fundamental sub-plane α-β sub-plane as the intermediate vector v, and the control period is T s , let the large vector v L The action time is μT s , then the medium vector v M The action time is (1-μ)T s , figure 1 is the synthesis process of the intermediate vector;
[0068] Step 2, obtain the intermediate vector v between α-β and z by the action time of each vector obtained in step 1 1 -z 2 the magnitude of the subplane, and find that ...
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