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Optimal SVPWM algorithm for five-phase VSI
Pages: 516-522
Year: Issue:  4
Journal: Electric Machines and Control

Keyword:  multiphase systemsinverter controlpulse width modulationharmonic spaceoptimal algorithm;
Abstract: To make sure that five-phase voltage source inverter(VSI) get maximal DC voltage utilization and minimal output voltage harmonics, a novel space vector pulse width modulation(SVPWM) algorithm using four nearest space vectors was proposed. When modulation ratio m is between 0 and 1.0514, harmonic in output voltage could be restricted to zero by eliminating the voltage vectors in harmonic space. When m is between 1.0514 and 1.231, the active time of space vectors was optimized to minimize the voltage vectors in harmonic space. Simulation model and experiment platform based on field programmable gates array(FPGA) were constructed, the simulation and experimental results show the proposed optimal algorithm restricts the harmonic component of five-phase VSI output voltage during the whole modulation range.
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