Towards performance enhancement of hybrid power supply systems based on renewable energy sources

Abstract

In the present study, the design and the implemented operation of an automated control strategy in a Hybrid Power System (HPS) based on Renewable Energy Sources (RES) are analysed. A photovoltaic array and a wind generator serve as the main power sources that cover controllable and non-controllable load demand. A lead-acid battery is used to compensate the inherent power fluctuations (excess or shortage) and to regulate the overall system operation, based on a developed power management strategy. The performance of the automatic control system is evaluated through the real-time operation of the power system where data from the various subsystems are recorded and analysed via distributed data acquisition units and the use of day ahead energy forecasting models.