Title :
Battery-Integrated Power Optimizer for PV-Battery Hybrid Power Generation System
Author :
Bong-Yeon Choi ; Yong-Su Noh ; Young-Hyok Ji ; Byoung-Kuk Lee ; Chung-Yuen Won
Author_Institution :
Sungkyunkwan Univ., Suwon, South Korea
Abstract :
Recently, hybrid generation systems combine multiple energy sources or storage components to optimize the characteristics of the individual energy sources. PV-battery hybrid systems usually combine photovoltaic (PV) generation of electricity with energy storage components (i.e. batteries). These systems are often configured as mini-grids in which the generation sources supply loads through a relatively small local distribution grid. In these systems, to improve the utilization of solar energy, the output power mismatch between PV modules due to the non-identical solar irradiance has to be considered. In this paper, a battery integrated PV power optimizer for PV-battery hybrid power generation system is proposed. Proposed system can be applied to the conventional PV hybrid power generation systems, as well as, the normal centralized PV generation systems. By integrating the batteries to the PV power optimizer, PV system using proposed topology can easily increase battery capacity and stabilize input power for central power conditioning system (PCS). Proposed battery integrated power optimizer is verified by simulation results.
Keywords :
energy storage; hybrid power systems; photovoltaic power systems; power distribution; power grids; PCS; PV generation; PV-battery hybrid power generation system; battery capacity; battery-integrated power optimizer; central power conditioning system; electricity; energy sources; energy storage components; minigrids; nonidentical solar irradiance; photovoltaic generation; small local distribution grid; topology;
Conference_Titel :
Vehicle Power and Propulsion Conference (VPPC), 2012 IEEE
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-0953-0
DOI :
10.1109/VPPC.2012.6422686