Title :
A switched-capacitor multilevel inverter for high AC power systems with reduced ripple loss using SPWM technique
Author :
Karami, Bagher ; Barzegarkhoo, Reza ; Abrishamifar, Adib ; Samizadeh, Mehdi
Author_Institution :
Fac. of Electr. Eng., Iran Univ. of Sci. & Technol. (IUST), Tehran, Iran
Abstract :
Multilevel inverters due to adequate cost, simple implementation and high efficiency are very useful in modern drives and other medium and high power utilities. In this study, a new switched-capacitor multilevel inverter (SCMLI) topology is presented which can be used in high power applications with minimum count. Proposed SCMLI consists of several capacitors beside series/parallel power switches and diodes that can pass the reverse current for inductive loads. In this case, voltage of all capacitors is balanced by using proposed SPWM modulation technique with reduced ripple loss and good output waveform spectrum. Loss calculations and several simulation results by MATLAB/SIMULINK software are given to confirm the validity of proposed topology.
Keywords :
PWM invertors; network topology; power semiconductor diodes; switched capacitor networks; AC power system; MATLAB software; SCMLI topology; SIMULINK software; SPWM technique; inductive loads; parallel power switches; power diodes; reduced ripple loss; reverse current; series power switches; switched-capacitor multilevel inverter; waveform spectrum; Capacitors; Logic gates; Reactive power; Software packages; Switches; Topology; SPWM modulation technique; high power utility; multilevel inverter; switched capacitor;
Conference_Titel :
Power Electronics, Drives Systems & Technologies Conference (PEDSTC), 2015 6th
Conference_Location :
Tehran
Print_ISBN :
978-1-4799-7652-2
DOI :
10.1109/PEDSTC.2015.7093347
