A NOVEL CONTROL STRATEGY FOR QUASI-Z SOURCE CASCADE MULTILEVEL INVERTER-BASED GRID-CONNECTED SINGLE-PHASE PV POWER SYSTEM

Author Name : S. Surendra K. A. Rajani J. Uday Bhaskar
Volume : II, Issue :IV,December - 2016
Published on : 2016-12-15 , By : IRJI Publication

Abstract :

A successful control technique, including system-level control and heartbeat width tweak for semi Z-source course multilevel inverter (qZS-CMI) based framework tie photovoltaic (PV) control system is proposed. The system-level control accomplishes the network tie current infusion, autonomous most extreme power point following (MPPT) for discrete PV boards, and dc-interface voltage adjust for all semi Z-source H-connect inverter (qZS-HBI) modules. The entire plan process is revealed. A multilevel space vector balance (SVM) for the single-stage qZS-CMI is proposed to satisfy the synthetization of the progression like voltage waveforms. Recreation and trial in view of a seven-level model are done to approve the proposed strategies.