新能源发电调控参与的送端电网直流闭锁紧急频率控制策略快速优化

doi:10.19595/j.cnki.1000-6753.tces.210279

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Abstract In a power system which has highly penetrated renewable energy generators and high-voltage dc lines transmitting power to other systems, fast and continuous adjustment of the large renewable energy bases’ power outputs should be an economic replacement of the expensive countermeasure of tripping conventional generating units, for the emergent frequency control when the fault-caused loss of dc connection suddenly occurs. Therefore, an optimization model for the emergent frequency control strategy to ensure the frequency safety of the dc sending-end power system and lowest control cost, is proposed in this paper based on cooperating the renewable energy plants and conventional generators. Generally, it is very difficult to solve this optimization because it is nonlinear and with differential equation constraints. Thus, a systematic method which can convert the model to a mixed integer linear programming (MILP) problem is proposed so that it can be efficiently solved by dedicated powerful commercial software. The simulation results based on the model of a province-sized power system in North-west China prove the effectiveness of the proposed optimization model and the efficiency of the solving process.

Key words： Loss of DC connection emergent frequency control power regulation of renewable energy rapid optimization mixed integer linear programming (MILP)

Received: 03 March 2021

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TM76

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	Articles by authors
	Ke Deping
	Feng Shuaishuai
	Liu Fusuo
	Chang Haijun
	Sun Yuanzhang

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Ke Deping,Feng Shuaishuai,Liu Fusuo等. Rapid Optimization for Emergent Frequency Control Strategy with the Power Regulation of Renewable Energy during the Loss of DC Connection[J]. Transactions of China Electrotechnical Society, 2022, 37(5): 1204-1218.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.210279 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I5/1204

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