Multi-Objective Energy Management Strategy for PV/FC Hybrid Power Systems

Electronics

Nicu Bizon¹  Phatiphat Thounthong² 

[1] Faculty of Electronics, Communications and Computers, University of Pitesti, 1 Targu din Vale, 110040 Pitesti, Romania;Renewable Energy Research Centre (RERC), Department of Teacher Training in Electrical Engineering, Faculty of Technical Education, King Mongkut’s University of Technology North Bangkok, 1518, Pracharat 1 Road, Bangsue, Bangkok 10800, Thailand;

关键词: energy management strategy;    hybrid power systems;    photovoltaic system;    fuel cell system;    power-following control;    fuel economy;   

DOI  :  10.3390/electronics10141721

来源: DOAJ

【 摘 要 】

In this paper, a new control of the DC–DC power converter that interfaces the fuel cell (FC) system with the DC bus of the photovoltaic (PV) power system is proposed to increase the battery lifespan by its operating in charge-sustained mode. Thus, the variability of the PV power and the load demand is compensated by the FC power generated considering the power flows balance on the DC bus. During peak PV power, if the PV power exceeds the load demand, then the excess power on the DC bus will power an electrolyzer. The FC system operation as a backup energy source is optimized using a new fuel economy strategy proposed for fueling regulators. The fuel optimization function considers the fuel efficiency and electrical efficiency of the FC system to maximize fuel economy. The fuel economy obtained in the scenarios considered in this study is compared with reference strategies reported in the literature. For example, under scenarios considered in this paper, the fuel economy is between 4.82–20.71% and 1.64–3.34% compared to a commercial strategy based on static feed-forward (sFF) control and an advanced strategy recently proposed in the literature, respectively.

【 授权许可】

Unknown