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Space-vector PWM techniques for dual three-phase AC machine: analysis, performance evaluation, and DSP implementation

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3 Author(s)
Hadiouche, D. ; GE Fanuc Autom. Solutions Eur., Echternach ; Baghli, L. ; Rezzoug, A.

The major drawback of dual three-phase ac machines (6phiM), when supplied by a voltage-source inverter (VSI), is the occurrence of extra harmonic currents. These extra currents circulate only in the stator windings and cause additional losses. One solution to reduce their amplitude is to act on the supply side using dedicated pulsewidth modulation (PWM) control strategies. The aim of this paper is to investigate new space-vector PWM (SVPWM) techniques suitable for 6phiM and to perform a detailed analysis and a performance evaluation. The proposed performance criteria, specific to VSI-fed 6phiM, lead to analytical formulas and graphics, which aid the design of high-performance PWM techniques and demonstrate the superiority of the proposed SVPWM techniques. Experimental results carried out on a 15-kW prototype machine and using a low-cost fixed-point TMS320F240 digital signal processor are given and discussed

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Industry Applications, IEEE Transactions on  (Volume:42 ,  Issue: 4 )