A novel telecom power system

Typically, telecom power systems are connected to grid and diesel generator. This paper represents a new telecom power system using local micro-sources (fuel cell and micro-turbine). Some benefits of this system are effectively eliminating batteries, diesel generator and automatic transfer switch. In this paper, a new multiple input buck-boost converter is utilized as an interface between the micro-sources and the DC bus. Peak current mode control is used to control the current of fuel cell while voltage mode control is used to regulate the output voltage. A model for Proton Exchange Membrane Fuel Cell (PEMFC) and Micro-Turbine (MT) along with their subcomponents and internal controls are presented. Furthermore, the parallel operation of FC and MT using the proposed multiple input DC/DC converter is investigated. In addition, the dynamic response of the system to the dynamic behavior of the load is analyzed.

[1]  Philip T. Krein,et al.  Elements of Power Electronics , 1997 .

[2]  Aristide F. Massardo,et al.  Microturbine/Fuel-Cell Coupling for High-Efficiency Electrical-Power Generation , 2002 .

[3]  M.L. Perry,et al.  A back-up power solution with no batteries , 2004, INTELEC 2004. 26th Annual International Telecommunications Energy Conference.

[4]  P. Kundur,et al.  Experience with testing and modeling of gas turbines , 2001, 2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194).

[5]  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.

[6]  A. Khaligh.  A multiple-input dc-dc positive buck-boost converter topology , 2008, 2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition.

[7]  R. Maher.  High reliability backup for telecommunications using ultracapacitors , 2004, INTELEC 2004. 26th Annual International Telecommunications Energy Conference.

[8]  P.T. Krein,et al.  A Microgrid-based Telecom Power System using Modular Multiple-Input DC-DC Converters , 2005, INTELEC 05 - Twenty-Seventh International Telecommunications Conference.

[9]  James Larminie,et al.  Fuel Cell Systems Explained: Larminie/Fuel Cell Systems Explained , 2003 .

[10]  S. V. Natale,et al.  Achieving ultra-high system availability in a battery-less -48VDC power plant , 2002, 24th Annual International Telecommunications Energy Conference.

[11]  J. R. McDonald,et al.  An integrated SOFC plant dynamic model for power systems simulation , 2000 .

[12]  Arifur Rahman,et al.  Parallel operation characteristics of PEM fuel cell and microturbine power plants , 2007 .

[13]  Kevin Tomsovic,et al.  Development of models for analyzing the load-following performance of microturbines and fuel cells , 2002 .

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

[15]  M. Fraisse,et al.  Environment friendly high quality, high availability telecom power plant architecture , 2002, 24th Annual International Telecommunications Energy Conference.