홈 > 연구업적 > 국제학술대회
An improved anti-islanding algorithm for utility interconnection of multiple distributed fuel cell powered generations
작성자 관리자 작성일 2009-08-20
논문집명 IEEE Applied Power Electronics Conference 발행년도 2005. 03
파일1
22.An improved anti-islanding algorithm for utility interconnection of multiple distributed fuel cell powered generations05.pdf

Chuttchaval Jeraputra, Eddy C. Aelwizal, Prasad N. Enjeti, Sewan Choi “An improved anti-islanding algorithm for utility interconnection of multiple distributed fuel cell powered generations”

Abstract : This paper presents an improved anti-islanding aIgorithm for utility interconnection of multiple distributed fuel cell powered generations (DFPGs). A cross-correlation method is proposed and implemented in conjunction with the antiislanding algorithm developed in the previous work [I]. While the power control algorithm continuously perturbs (*so/,) 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 (f5%) the reactive power to confirm islanding. If this index is above 50%, the algorithm further initiates (&lo%) 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,