Open AccessCONTROL OF THREE PORT DC-DC CONVERTER FOR QUASI Z SOURCE INVERTER BASED GRID CONNECTED PV-BATTERY APPLICATION
Author(s) -
S. Vijayakumar,
K Jayasurya,
G Nishanth,
U Saranraj
Publication year - 2020
Publication title -
international journal of engineering applied science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-2143
DOI - 10.33564/ijeast.2020.v04i12.084
Subject(s) - inverter , z source inverter , electrical engineering , battery (electricity) , port (circuit theory) , photovoltaic system , grid , grid tie inverter , forward converter , computer science , boost converter , automotive engineering , engineering , maximum power point tracking , voltage , power (physics) , physics , mathematics , geometry , quantum mechanics
A control strategy for an energy management system (EMS) of a household nano-grid is presented in this paper. The proposed EMS is based on a state diagram. A three port converter (TPC) with direct storage capability is chosen and the states together with the state transitions are defined. The state diagram signals to two algorithms of which one calculates the battery current reference and the other allows the photovoltaic (PV) system to operate at the maximum power point (MPP) at all times. An extensive model has been implemented in MATLAB/Simulink using generic models to test the proposed control method. Keywords— Three port converter, battery, control method, current, energy management system, maximum power point, photovoltaic.