Dynamic modeling, design and simulation of a wind/fuel cell/ultra-capacitor-based hybrid power generation system

Recent research and development of alternative energy sources have shown excellent potential as a form of contribution to conventional power generation systems. In order to meet sustained load demands during varying natural conditions, different energy sources and converters need to be integrated with each other for extended usage of alternative energy. The paper focuses on the combination of wind, fuel cell (FC) and ultra-capacitor (UC) systems for sustained power generation. As the wind turbine output power varies with the wind speed: an FC system with a UC bank can be integrated with the wind turbine to ensure that the system performs under all conditions. We propose herein a dynamic model, design and simulation of a wind/FC/UC hybrid power generation system with power flow controllers. In the proposed system, when the wind speed is sufficient, the wind turbine can meet the load demand while feeding the electrolyzer. If the available power from the wind turbine cannot satisfy the load demand, the FC system can meet the excess power demand, while the UC can meet the load demand above the maximum power available from the FC system for short durations. Furthermore, this system can tolerate the rapid changes in wind speed and suppress the effects of these fluctuations on the equipment side voltage in a novel topology.

[1]  David A. J. Rand,et al.  Energy storage — a key technology for global energy sustainability , 2001 .

[2]  E. Santini,et al.  A critical evaluation and design of bi-directional DC/DC converters for super-capacitors interfacing in fuel cell applications , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[3]  F. Barbir.  PEM electrolysis for production of hydrogen from renewable energy sources , 2005 .

[4]  T. Schucan,et al.  Case Studies of integrated hydrogen systems. International Energy Agency Hydrogen Implementing Agreement, Final report for Subtask A of task 11 - Integrated Systems , 1999 .

[5]  B. Delfino,et al.  Modeling and control of an integrated fuel cell-wind turbine system , 2003, 2003 IEEE Bologna Power Tech Conference Proceedings,.

[6]  Mohammad S. Alam,et al.  A dynamic model for a stand-alone PEM fuel cell power plant for residential applications , 2004 .

[7]  Eduard Muljadi,et al.  Pitch-controlled variable-speed wind turbine generation , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[8]  Lu Aye,et al.  Technical feasibility and financial analysis of hybrid wind–photovoltaic system with hydrogen storage for Cooma , 2005 .

[9]  Siegfried Heier,et al.  Grid Integration of Wind Energy Conversion Systems , 1998 .

[10]  Faisal Khan,et al.  Life Cycle Analysis of wind–fuel cell integrated system , 2005 .

[11]  Wilsun Xu,et al.  Control design and dynamic performance analysis of a wind turbine-induction generator unit , 2000 .

[12]  A. Burke.  Ultracapacitors: why, how, and where is the technology , 2000 .

[13]  R.A. Dougal,et al.  Power enhancement of an actively controlled battery/ultracapacitor hybrid , 2005, IEEE Transactions on Power Electronics.

[14]  Mark C. Williams,et al.  U.S. distributed generation fuel cell program , 2004 .

[15]  R. M. Nelms,et al.  Modeling double-layer capacitor behavior using ladder circuits , 2003 .

[16]  S. Ovshinsky,et al.  Development of a small scale hydrogen production-storage system of hydrogen applications , 1997, IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203).

[17]  Hernán De Battista,et al.  Power conditioning for a wind-hydrogen energy system , 2006 .

[18]  Karl-Heinz Hauer,et al.  Analysis Tool for Fuel Cell Vehicle Hardware and Software (Controls) with an Application to Fuel Economy Comparisons of Alternative System Designs , 2001 .

[19]  Paul C. Krause,et al.  Analysis of electric machinery , 1987 .

[20]  M. J. Khan,et al.  Dynamic modeling and simulation of a small wind–fuel cell hybrid energy system , 2005 .

[21]  Eamon McKeogh,et al.  Simulation and operational assessment for a small autonomous wind–hydrogen energy system , 2006 .

[22]  R. Mark Nelms,et al.  Analysis of double-layer capacitors supplying constant power loads , 2000, IEEE Trans. Aerosp. Electron. Syst..

[23]  H. Gorgun.  Dynamic modelling of a proton exchange membrane (PEM) electrolyzer , 2006 .

[24]  M.S. Alam,et al.  Dynamic modeling, design, and simulation of a combined PEM fuel cell and ultracapacitor system for stand-alone residential applications , 2006, IEEE Transactions on Energy Conversion.

[25]  R. Mark Nelms,et al.  Classical equivalent circuit parameters for a double-layer capacitor , 2000, IEEE Trans. Aerosp. Electron. Syst..