Design and simulation of Solar home inverter system supporting nonlinear load

Abstract

The growing interest in developing efficient DC to AC converters for residential use is driven by the increasing integration of renewable energy sources and the demand for energy-efficient home systems. This project involves the design and simulation of a DC to AC converter, implemented using MATLAB/Simulink and PLECS. The goal is to utilize MATLAB/Simulink and Piecewise Linear Electrical Circuit Simulation (PLECS) Software for the design, analysis, and evaluation of power electronic converters and their controllers. Focusing on enhancing energy conversion efficiency, performance, and reliability, the study aims to achieve optimal design and modeling of a domestic DC to AC converter. Specifically tailored for the requirements of renewable energy sources such as solar energy and battery storage, as well as household appliances, the proposed converter incorporates power electronics, control algorithms, and filtering methods. This research employs advanced simulation techniques to model and analyze these converter components. A MATLAB/Simulink model was created for a closed-loop DC-DC boost converter with a broad input voltage range of 40 V to 60 V, generating a consistent 330 V DC output. The DC voltage was converted to chopped AC voltage using a 1KVA H-bridge single-phase inverter, followed by filtering to obtain a pure sinusoidal AC with an effective value of 230 V. To compare the results with standard, the simulation model has been simulated in Piecewise Linear Electrical Circuit Simulation (PLECS) Software with variable linear load and the output voltage was 220V RMS. In the end, this project 's findings offer insightful information about how to simulate and design house DC to AC converters optimally, laying the groundwork for the creation of energy-efficient solutions that can adapt to the changing demands of contemporary domestic power systems. The findings of this project work for both cases should open the door for the widespread use of effective DC to AC conversion technology and have a significant impact on the development of sustainable energy practice in residential settings as output voltage is ranging between 220V to 230V RMS