A Voltage Based SPWM Technique On A New Approach For Multilevel Inverter

Soong, Chee Ching (2017) A Voltage Based SPWM Technique On A New Approach For Multilevel Inverter. Project Report. UTeM, Melaka. (Submitted)

Text A Voltage Based SPWM Technique On A New Approach For Multilevel Inverter - Soong Chee Ching - 24 Pages.pdf - Submitted Version Download (572kB)

Abstract

Inverters are power electronic converters converting the several levels of direct current (DC) voltages into alternating current (AC) voltages required for loads. Multilevel inverters are the inverters with voltage level three or more. Recently, industries have begun to demand higher power equipment. Therefore, multilevel inverters started to gain popularity among industries since they are able to deal with higher voltage levels. There are few advantages of multilevel inverter: it produces nearly sinusoidal waveform, decreases the harmonic distortion, thus decreases the losses, can deal with high power ratings equipment, and needs a smaller filter to smooth the graph. Besides that, the system’s complexity is also reduced and it became lighter and cheaper. This paper aims to investigate on SPWM switching strategy of 5- level cascaded hybrid multilevel inverter (CHMI) needed to develop a new sinusoidal pulse width modulating (SPWM) switching strategy for CHMI. This paper also aims to investigate on output voltage total harmonic distortion of conventional inverter and five- level inverter. In this paper, there will be a new switching strategy for a 5- level CHMI. The model of a 5-level CHMI will be simulated using MATLAB Simulink. The output of the simulation will be analysed.

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