Abstract
This paper presents an experimental performance testing of a 3ϕ voltage-source (VS) six-pulse wavelet-modulated (WM) inverter-fed interior permanent magnet (IPM) motor. The proposed modulation technique is based on a set of three scale-based linearly-combined scaling functions shifted by 2π/3 from each other. These scaling functions are employed to sample three reference-modulating signals, each corresponds to one phase, in a non-uniform recurrent manner. Moreover, these scaling functions have dual synthesis scaling functions that are responsible for reconstructing the three continuous- time (CT) reference-modulating signals from their non-uniform recurrent samples. The proposed wavelet modulation technique is realized through a Turbo -C code that is executed by a dSPACE ds 1102 DSP board to generate switching pulses to activate the inverter six IGBT switches. The IGBT inverter supplies a 4-poles, 1 hp, 208 V, 60 Hz interior permanent magnet (IPM) motor.
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