ISSN 1674-0629
CN 44-1643/TK
CN 44-1643/TK
Frequency Characteristics of Yunnan Power Grid and Corresponding Over-Frequency Generator Tripping Scheme After Asynchronous Interconnection
Lei ZHOU , Dan ZHANG , Fusuo LIU , Wei HUANG , Wei LI , Chen WU
›› 2016, Vol. 10 ›› Issue (7) : 17 -23.
Frequency Characteristics of Yunnan Power Grid and Corresponding Over-Frequency Generator Tripping Scheme After Asynchronous Interconnection
Frequency stability will become the main security risk of Yunnan Power Grid as multi-DC sending end with small load and large sending-power after the asynchronous interconnection with CSG. The influences of load model and governor parameters on frequency characteristics are investgated. The principle of coordination and optimization of over-requency generator tripping are proposed. Based on the simulation and analysis of 4 alternative schemes, the over-frequency generator tripping scheme is proposed for Yunnan Power Grid to meet the requirements of asynchronous interconnection.
asynchronous interconnection / over-frequency generator tripping / frequency characteristic / multi-DC blocking
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