Simulation of Single Phase Five-Level Inverter Based Modified Pulse-Width Modulation Approach

Abstract

The  solar  cells  can  generate  electrical  energy  in  form  of  Direct Current (DC). Generally, electrical appliances have used an Alternating Current (AC). Sequence, an inverter circuit is needed to convert electrical energy form DC to AC. This paper aim is to simulate an inverter performance of single-phase five-level using the method of  modified Pulse  Width  Modulation  (PWM). A scheme of the circuit model of single-phase five-level inverter was constructed to investigate their performance. The model was simulated by using of PSIM Software. The simulation  parameters were  set  as  a  triangular  wave  frequency  used  2  KHz.  Then,  the same  phase  was  set  as  the  carrier  waves  and  a  sinusoidal  signal with  a  frequency  of  50  Hz  as  a  reference  signal.  The  circuit scheme  model  used  a  switching  frequency  MOSFET  gate   as  a power  switch  on  the  single-phase  five-level  inverter.  The  result indicated  the  simulation  as  an  expectation  to  generate  a  constant of  five  level  voltage  and  sinusoidal  current  output, which  the harmonics  values   were   small.   Therefore, the inverter circuit scheme is safe to use for the AC electrical appliances.