Configuration Scheme of Over-Frequency Tripping and Coordination with Over-Speed Protection Controller (OPC) of Regional Grid

doi:10.11930/j.issn.1004-9649.2013.10.35.5

Abstract

Abstract: By analyzing frequency characteristics of a regional grid under the isolated operation condition, the main factors influencing the islanding frequency are identified to be the unbalance of the power and the inertia of the grid. In order to solve the possible problem of over-frequency during the isolated operation of a real grid, the paper analyzes the configuration solution of over-frequency tripping and its coordination with an over-speed protection controller(OPC), and proposes the configuration scheme of over-frequency generator- tripping which is of good adaptability for other regional grids and the configuration principles which require to curb the frequency increase preferentially and avoid the repeating actions of the OPC.

Key words: regional grid, frequency stability, over-frequency generator-tripping, over-speed protection controller (OPC)

CLC Number:

TM73

YANG Fan, ZHANG Zhi-qiang, ZHAO Shu-qiang, WU Li-hua, HE Jia-yong. Configuration Scheme of Over-Frequency Tripping and Coordination with Over-Speed Protection Controller (OPC) of Regional Grid[J]. Electric Power, 2013, 46(10): 35-40.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2013.10.35.5

https://www.electricpower.com.cn/EN/Y2013/V46/I10/35

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