| Title |
Rule-based Coordination Algorithms for Improving Energy Efficiency of PV-Battery Hybrid System |
| Authors |
유철희(Yoo, Cheol-Hee) ; 정일엽(Chung, Il-Yop) ; 홍성수(Hong, Sung-Soo) ; 장병준(Jang, Byung-Jun) |
| DOI |
https://doi.org/10.5370/KIEE.2012.61.12.1791 |
| Keywords |
PV PCS ; BESS ; Grid-connected ; Rule-based ; Coordination algorithms |
| Abstract |
This paper presents effective design schemes for a photovoltaic (PV) and battery hybrid system that includes state-of-the-art technologies such as maximum power point tracking scheme for PV arrays, an effective charging/discharging circuit for batteries, and grid-interfacing power inverters. Compared to commonly-used PV systems, the proposed configuration has more flexibility and autonomy in controlling individual components of the PV-battery hybrid system. This paper also proposes an intelligent coordination scheme for the components of the PV-battery hybrid system to improve the efficiency of renewable energy resources and peak-load management. The proposed algorithm is based on a rule-based expert system that has excellent capability to optimize multi-objective functions. The proposed configuration and algorithms are investigated via switching-level simulation studies of the PV-battery hybrid system. |