Title :
Design and analysis of three phase modified cascaded multilevel inverter for PV applications
Author :
Uthirasamy, R. ; Ragupathy, U.S. ; Megha, C. ; Mithra, R.
Author_Institution :
Dept. of Electr. & Electron. Eng., Jansons Inst. of Technol., Coimbatore, India
Abstract :
This paper presents a new structure of three phase seven level Cascaded Multilevel Inverter (CMLI) for Photo Voltaic (PV) applications. The proposed structure consists of H-bridge inverter unit and sub-multilevel unit. Each sub-multilevel unit is connected with PV panels. The proposed system incorporates less number of power semiconductor devices compared to conventional CMLI system. The voltage stress across the switches, switching losses, driver circuit requirements and Total Harmonic Distortion (THD) are also get minimized. A mathematical model of the PV system is developed and integrated with the proposed inverter system. The entire performance of the system is evaluated through SIMULINK tool.
Keywords :
invertors; photovoltaic power systems; H-bridge inverter unit; driver circuit requirements; photovoltaic applications; submultilevel unit; switching losses; three phase modified cascaded multilevel inverter; total harmonic distortion; Capacitors; Electronic mail; Integrated circuit modeling; Inverters; Mathematical model; Switches; Topology; H-bridge inverter; Irradiance; solar PV; sub-multilevel module;
Conference_Titel :
Green Computing Communication and Electrical Engineering (ICGCCEE), 2014 International Conference on
Conference_Location :
Coimbatore
DOI :
10.1109/ICGCCEE.2014.6922441
