Performance Analysis of Control Techniques for Micro Power System using Hybrid Approach

Abstract

The hybrid combination (Photovoltaic, Fuel Cells, and Battery) has found to be best energy resources which provide a reliable micro-power system. The single-phase inverter is modelled using appropriate gate pulses and the three-phase systems are modelled by control techniques such as Sinusoidal Pulse Width Modulation (SPWM) and State Vector Pulse Width Modulation (SVPWM) for attaining AC power. In this paper, the modular approach and Multiple Input Single Control (MISC) is applied to single-phase and three-phase systems with SPWM and SVPWM respectively to achieve better output efficiency. The modular approach is introduced for the power quality problem in the micro system, and MISC maintains the constant dc-link voltage. Furthermore, the proposed method maintains the State of Charge (SOC) of the battery by controlling the converter switches. The proposed research methodology is executed in MATLAB/Simulink-R2014a (Version 8.3) tool. The simulation results demonstrate that the MISC-based three-phase AC system with SVPWM achieves better results with reduced distortion level than SPWM.