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Fuzzy logic control of a space-vector PWM current regulator for three-phase power converters

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2 Author(s)
Saetieo, S. ; Dept. of Electr. Power Eng., Rensselaer Polytech. Inst., Troy, NY, USA ; Torrey, D.A.

This paper presents a fuzzy logic implementation of space-vector pulse-width modulation (PWM) for three-phase power converters. The conventional space-vector PWM current regulator implementation is generally computationally complex. The fuzzy logic controller implementation relieves the processor of a number of computations, thereby accommodating a less expensive microprocessor. The AC-side rectifier voltages are used as fuzzy-state variables. The fuzzy logic control has two outputs: magnitude and angle of reference voltage. Both conventional space-vector PWM and the fuzzy logic controller are implemented to evaluate performance using a 16-b microcontroller (68HC16). Experimental results are provided for both controllers at the same operating point, where the power drawn by the load is about 3 kW. The fuzzy logic controller reduces the computational burden on the processor by about 30%

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Power Electronics, IEEE Transactions on  (Volume:13 ,  Issue: 3 )