Simulation of Three Section Multilevel Inverter with Reduced Range of Switches

HARSHIT PANDAY

doi:10.37591/jovdtt.v10i1.3903

Abstract

Because of high generation development, the demand and excellent of electric strength ishigher than earlier than. Furthermore, due to the advancement of semiconductor, thespecification of electricity devices and strength conversion method turn out to be stricter. Oneof the energy converters that may remodel DC to AC is called inverter. An inverter is the intermedium to transmit the electricity to other electric device such as an uninterruptibleelectricity supply, servo motor, air-conditioner and smart grid devices. In recent years, theamount of power gadget is increasing. Therefore, the harmonic pollution on strength systemsturns into extra serious. For that reason, several requirements and rules have been formulatedto restrict the fine of harmonics and power issue of electrical system including IEEE Std. 1547and UL 1741. Furthermore, as the industry has all started to demand better strengthpackages, the specification of strength gadgets is higher. Although the IGBT has capabilitiesof excessive electricity and high voltage, incapable of being operated at excessive frequencyand the complex design of gate driving force are the primary disadvantages of the IGBT. Bycontrast, the MOSFET is more appropriate to be operated at high frequency, but power ratingis not as good as the IGBT. In view of these, many different multilevel topologies are designedto solve the problem with using low rating components in high power application. The causeof the multilevel topology is to reduce the voltage score of strength switches. By combiningoutput voltages in multilevel form, there are advantages such as: low dv/dt of powercomponents, low distortion of input current and output voltage, and lower switchingfrequency. SPWM technique is used to reduce the harmonics and power quality.Keywords: Diode, MOSFET, multilevel inverter, thyristor, transistor