An Improved Anti-Islanding Algorithm for Utility Interconnection of Multiple Distributed Fuel Cell Powered Generations

Title & Authors
An Improved Anti-Islanding Algorithm for Utility Interconnection of Multiple Distributed Fuel Cell Powered Generations
Jeraputra Chuttchaval; Hwang In-Ho; Choi Se-Wan; Aeloiza Eddy C.; Enjeti Prasad N.;

Abstract
This paper presents an improved anti-islanding algorithm for utility interconnection of multiple distributed fuel cell powered generations (DFPGs). A cross-correlation method is proposed and implemented in conjunction with the anti-islanding algorithm developed in the previous work [I]. While the power control algorithm continuously perturbs $\small{({\pm}5%)}$ the reactive power supplied by the DFPG, the proposed algorithm calculates the cross-correlation index of a rate of change of the frequency deviation with respect to $\small{({\pm}5%)}$ the reactive power to confirm islanding. If this index is above 50%, the algorithm further initiates $\small{({\pm}10%)}$ the reactive power perturbation and continues to calculate the correlation index. If the index exceeds 80%, the occurrence of islanding can be confirmed. The proposed method is robust and capable of detecting the occurrence of islanding in the presence of several DFPGs, which are independently operating. Viability of the cross-correlation method is verified by the simulation. Experimental results are presented to support the findings of the proposed method.
Keywords
anti-islanding algorithm;utility interconnection;DFPG;
Language
English
Cited by
1.
Design of a fuel cell generation system using a PEMFC simulator, Electric Power Systems Research, 2007, 77, 10, 1257
References
1.
C. Jeraputra, I. H. Hwang, and P. N. Enjeti, 'Development of a Robust Anti-Islanding Algorithm for Utility Interconnection of Distributed Fuel Cell Powered Generation,' IEEE Trans on Power Electronics, Vol. 19, Issue 5, pp. 1163 - 1170, Sept. 2004

2.
IEEE Std. 929-2000, Recommended Practice for Utility Interface of Photovoltaic Systems, IEEE, Inc

3.
IEEE Std. 1547-2003, Standard for Interconnecting Distributed Resources with Electric Power Systems, IEEE, Inc

4.
M. E. Ropp, 'Design Issues for Grid-Connected Photovoltaic Systems,' Ph.D. dissertation, Georgia Institute of Technology, Atlanta, GA, 1998

5.
W. Bower and M. E. Ropp, 'Evaluation of Islanding Detection Methods for Photovoltaic Utility-Interactive Power Systems,' Tech Rep. IEA PVPS T5-09:2002, [Online] Available: http://www.iea-pvps.org, 2002

6.
H. Kobayashi, K. Takigawa, E. Hashimoto, 'Method for Preventing Phenomenon of Utility Grid with a Number of Small Scale PV Systems,' in Proc. 22nd IEEE Photovoltaic Specialists Conj, pp.695-700, 1991

7.
GE Corporate Research and Development, 'Reliable, Low Cost Distributed Generatormtility System Interconnect,' 2001 Annual Report: NRELlSR-560- 34634

8.
J. Stevens, R. Bonn, J. Ginn, S. Gonzalez, G. Kern, 'Development and Testing of an Approach to Anti- Islanding in Utility-Interconnected Photovoltaic Systems,' Tech Rep., Sandia National Laboratories, Albuquerque, NM, August 2000