Carrier pwm with multi control-voltages for five level hybrid inverter
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haiqt@hcmute.edu.vnKeywords:
carrier modulation, hybrid inverter, reduce switching, multi control-voltages, 5-level inverterAbstract
This paper proposes Carrier Modulation Techniques with using multi-control-voltages for Hybrid inverter that joined 3rd level cascade and 2nd level inverter. This technique is based on the analysis of the hybrid inverter by separating it into basic inverters in order to decide how to control. Every analyzed basic inverter will have a separate control voltage. These control voltages uses the maximum threshold 1 or minimum threshold 0 of amplitude carriers that based on D-PWM to reduce many of switching on a phase. The using hybrid inverter is able to reduce number of switches to the standard configuration with the same level, so it makes reducing the cost of production. Simulation results are provided in order to validate the proposed method.
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