Analysis of Discontinuous Space Vector PWM Techniques for a Five-phase Voltage Source Inverter
نویسندگان
چکیده
This paper develops discontinuous space vector PWM (DPWM) techniques for a five-phase two-level voltage source inverter (VSI). Space vector model of a five-phase VSI shows that there exist 32 space vectors with three different lengths forming three concentric decagons. Application of outer most and middle set of space vectors to implement Space vector PWM yield nearly sinusoidal output. Thus the proposed DPWM utilises the same set of space vectors to implement the discontinuous modulation techniques. Performance is evaluated in terms of total harmonic distortion (THD) in the output phase voltages. A significant reduction in switching losses is observed by adopting the proposed PWM schemes. The simulation and experimental results are provided to validate the concept.
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