The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Rule-based Coordination Algorithms for Improving Energy Efficiency of PV-Battery Hybrid System

태양광-배터리 하이브리드 전원시스템의 에너지 효율개선을 위한 규칙기반 협조제어 원리

  • Yoo, Cheol-Hee (College Electrical Engineering & Computer Science, Kookmin University) ;
  • Chung, Il-Yop (College Electrical Engineering & Computer Science, Kookmin University) ;
  • Hong, Sung-Soo (College Electrical Engineering & Computer Science, Kookmin University) ;
  • Jang, Byung-Jun (College Electrical Engineering & Computer Science, Kookmin University)
  • Received : 2012.07.16
  • Accepted : 2012.11.23
  • Published : 2012.12.01
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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.

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References

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