Abstract
A signal processor based high power drive system with three-level voltage source inverter feeding an induction machine is presented. The advanced field-oriented control technique with novel flux-calculator, precontrol networks for stator current and rotor flux regulation contribute to an excellent dynamic behaviour. A novel inverter trigger set performs an on-line calculation of three-level PWM waveforms. It effects voltage space vector approximation with optimal switching sequence of the inverters GTOs.
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