Transfer method of micro-grid operation between grid-connected and islanding modes

doi:10.11930/j.issn.1004-9649.2012.1.59.4

Abstract

Abstract: The proper implementation of grid-connected and islanding modes for a micro-grid can effectively improve the power supply reliability of important loads. The transfer method between the two operation modes was investigated. An automatic transfer method was proposed, which can give the identification of the micro-grid condition by monitoring the voltage phase angle and amplitude on both utility and micro-grid sides continuously. The simulation results of the micro-grid with a micro-turbine and fuel cells as distributed sources were analyzed by using the PSCAD/EMTDC software package. The results demonstrate that the proposed automation transfer method has the ability to transfer between the two operation modes seamlessly in planned or faulted conditions.

Key words: micro-grid, micro-turbine, fuel cell, operation mode transfer

CLC Number:

TM727

WANG He, LI Guo-qing, LI Hong-peng, WANG Bo-yi. Transfer method of micro-grid operation between grid-connected and islanding modes[J]. Electric Power, 2012, 45(1): 59-63.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2012.1.59.4

https://www.electricpower.com.cn/EN/Y2012/V45/I1/59

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