Power-Management Strategies for a Grid-Connected PV-FC Hybrid System

Title
Power-Management Strategies for a Grid-Connected PV-FC Hybrid System
Authors
Khanh, L.N.; Seo, J.J.; Kim, Y.S.; Won, D.J.
Keywords
hybrid system, power management
Issue Date
2010-07
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
This paper presents a method to operate a grid connected hybrid system. The hybrid system composed of a Photovoltaic (PV) array and a Proton exchange membrane fuel cell (PEMFC) is considered. The PV array normally uses a maximum power point tracking (MPPT) technique to continuously deliver the highest power to the load when variations in irradiation and temperature occur, which make it become an uncontrollable source. In coordination with PEMFC, the hybrid system output power becomes controllable. Two operation modes, the unit-power control (UPC) mode and the feeder-flow control (FFC) mode, can be applied to the hybrid system. The coordination of two control modes, the coordination of the PV array and the PEMFC in the hybrid system, and the determination of reference parameters are presented. The proposed operating strategy with a flexible operation mode change always operates the PV array at maximum output power and the PEMFC in its high efficiency performance band, thus improving the performance of system operation, enhancing system stability, and decreasing the number of operating mode changes.
URI
http://dspace.inha.ac.kr/handle/10505/20136
ISSN
0885-8977
Appears in Collections:
College of Engineering(공과대학) > Electrical Engineering (전기공학) > Local Access Journal, Report (전기공학 논문, 보고서)
Files in This Item:
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