Optimal Power Management Controller for a Stand-alone Solar PV/Wind/Battery Hybrid Energy System

Abstract

In this article, a DC-linked stand-alone solar photovoltaic (PV)/wind/battery hybrid energy system is proposed. The wind and PV generation systems are the main power generation sources, the battery system is used as backup generation, and the water heater acts as a dump load to utilize any excess power available with source. The simulation model of the hybrid system has been developed in MATLAB/Simulink platform. Simulation studies have been carried out to verify the system performance under different scenarios using the practical load profile and real weather data collected at National Institute of Technology Calicut campus. The overall control and power management strategy for the proposed hybrid energy system is also developed. The simulation results, given for two scenarios, show the effectiveness of the overall power management strategy and the feasibility of the proposed hybrid system.

Keywords:

• deferrable load
• hybrid energy
• power management
• solar photovoltaic
• wind energy