Model predictive direct power control method based on fuzzy control
A technology of model prediction and power control, applied in the field of electric drive, which can solve problems such as the inability to realize decoupling control
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[0062] The technical solution of the present invention will be further introduced below in combination with specific embodiments.
[0063] This specific embodiment discloses a model predictive direct power control method based on fuzzy control, including the following steps:
[0064] S1: collect the symmetrical three-phase current i of the three-phase voltage-type PWM rectifier a i b i c , DC bus voltage U dc and load current i L ;
[0065] S2: DC bus voltage U dc with a given DC bus voltage U ref The difference is output by the PI regulator, the output value and the DC bus voltage U dc The product of the given active power p ref ;Given reactive power q ref = 0;
[0066] S3: According to the symmetrical three-phase current i a i b i c and the six switching tube states of the three-phase voltage-type PWM rectifier to obtain the virtual flux linkage ψ, active power p, reactive power q and the component e of the grid voltage in the αβ coordinate system α and e β ; ...
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