MODELLING AND SIMULATION OF LC SWITCHING VOLTAGE BOOST THREE LEVEL NPC INVERTER WITH FUZZY LOGIC CONTROLLER

This paper presents a new control scheme for three levels NPC Inverter to boost up the input dc voltage and give three levels AC output voltage with less harmonic distortion in a single stage.Recently, Single stage high voltage pick up support inverter is getting ubiquity in applications like sun powered PV, energy component, UPS systems and so on. As of late, single stage voltage support multilevel Z-Source inverter (ZSI) and Quasi Zsource inverter (QZSI) have been proposed for DC-AC control transformation with enhanced power quality. Multilevel ZSI utilizes more number of high power inactive segments in the middle of the road arrange which increment the system measure furthermore, weight. Likewise its info current is irregular in nature which is not alluring in a portion of the applications like energy unit, UPS systems, hybrid electric vehicle and so forth. In this paper a consistent current info three level LC Switching based voltage help nonpartisan point clipped (NPC) inverter with fuzzy logic controller is proposed which utilizes similarly less number of high power detached segments at the same time holds every one of the benefits of multilevel QZSI/ZSI. It is ready to help the info DC voltageand give required three levels AC output voltage in a solitary stage. The fuzzy logic controller is incorporated to systematically control the time allocation for all the switching states based on instantaneous voltage. Using the fuzzy controller for a nonlinear systemallows for a reduction of uncertain effects in the system in the system control and improve the efficiency . Enduring state investigation of the proposed inverter is talked about to define the connection between the info DC voltage what's more, three level AC output voltage. The proposed converter with fuzzy logic controller has been verified by simulation in MATLAB Simulink