Title :
Power management of photovoltaic and fuel cell hybrid system for a constant-power-demand DC supply bus using complementary energy dispatch
Author :
Hsieh, Guan-Chyun ; Su, Cheng-Wen ; Hsieh, Hung-I
Author_Institution :
Dept. of Electr. Eng., Chung Yuan Christian Univ., Chungli, Taiwan
Abstract :
This paper presents a power management for a photovoltaic (PV) and fuel cell (FC) hybrid system that complementarily dispatches energies into a constant-power-demand DC bus (DCB) through a boost current (BCC) and Z-source voltage (ZSVC) converters. A novel power-increment-aided maximum power point tracking (PI-INC MPPT) with a duty detection is used to guide the PV-BCC to pump PV energy fast and accurate as well as provide a burst regulation to FC-ZSVC for quick energy dispatch. Accordingly, the feed-in PV energy is priority for hybrid in consideration of energy treasuring. An experiment presents the mutual energy dispatch behavior between PV and FC for a down-scale constant 250-W DCB under different solar insolation tests.
Keywords :
fuel cell power plants; hybrid power systems; maximum power point trackers; photovoltaic power systems; power generation dispatch; power system management; FC system; FC-ZSVC; PI-INC MPPT; PV energy pump; PV system; PV-BCC; Z-source voltage converters; boost current; burst regulation; complementary energy dispatch; constant-power-demand DC supply bus; down-scale constant; duty detection; hybrid photovoltaic-fuel cell system; mutual energy dispatch; power 250 W; power increment-aided maximum power point tracking; power management; solar insolation tests; Batteries; Equations; Fuel cells; Hybrid power systems; Renewable energy resources; Voltage control;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2012 IEEE
Conference_Location :
Raleigh, NC
Print_ISBN :
978-1-4673-0802-1
Electronic_ISBN :
978-1-4673-0801-4
DOI :
10.1109/ECCE.2012.6342213
