Improved Carrier Function and Optimal Structure for Stepped Wave Inverters

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Provided by: International Journal of Innovative Research in Electrical, Electronics, Instrumentation and Control Engineering (IJIREEICE)
Topic: Hardware
Format: PDF
Multilevel inverters include an array of power semiconductor devices and capacitor voltage sources, the output of which cause voltages with stepped waveforms to have compact distortion. The term multilevel starts with the three-level inverter. The most attractive features of multilevel inverters include output voltages with extremely low distortion, lower dv/dt, input current with very low distortion, generate smaller Common-Mode (CM) voltage (thus reducing the stress in the motor bearings), lower switching frequency, etc. The main advantage of this topology is that it does not need additional diodes or capacitors for implementation.
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