ANFIS BASED Single-Phase Dual-Stage Isolated Multilevel Inverter Applied to Solar Energy Processing
Keywords:
photovoltaic multi-level inverter; dual-stage inverter; inverter applied in alternative sources of energy; electronic processing of solar energy.Abstract
This paper presents single-phase Dual stage multilevel inverter applied to solar energy processing .The processing of PV panel was done by using Dual-stage inverter through galvanic isolation .The circuit consist of a DC-DC Resonant converter ,Transformer .The Transformer secondary is connected to Graetz circuits having connection with NPC .The objective of DC-DC Resonant converter is providing voltage to the inverter .The DC-AC conversion stage consist of Mono-Phase NPC which plays important role in grid current control and capacitive bus control . Inverter control loops are obtained by using two different modelling methods. By using the operation stages internal transfer function is obtained and using reverse energy flow external transfer function is assessed. The simulation results presented in this project are carried out in MATLAB/SIMULINK with following specifications:2KW output power: 400V input voltage,127 Vrms Ac output voltage .




