Abstract
In order to solve the problems of harmonic currents in the conventional vector control of multiphase induction motor, the rotor field oriented control (RFOC) strategy with harmonic current closed-loop control is proposed in the paper. Based on the transform theory of the multiphase system and the RFOC strategy of three-phase induction motor, the mathematical modulation of RFOC for five-phase induction motor is modeled. The fundamental current and the second order harmonic current can be controlled independently after being decoupled. The proposed strategy is implemented with a board microcomputer that uses TMS320F28335 DSP. The experimental results show that the proposed RFOC strategy with harmonic current closed-loop control has outstanding dynamic and static performance.
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