基于电化学储能的多馈入直流系统暂态控制及影响因素分析

doi:10.19595/j.cnki.1000-6753.tces.L90073

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Abstract As more and more large-capacity HVDC transmission projects are completed and put into operation, our country's power system is gradually forming an AC-DC hybrid structure, the coupling characteristics of the power grid are more complex, and the system's safe and stable operation is facing greater challenges. The grid-side electrochemical energy storage technology has developed rapidly in recent years and is expected to become an effective control method for improving the stability of AC-DC hybrid systems. Aiming at the problem of continuous commutation failure in the transient process of multi-infeed HVDC system, this paper analyzes the mechanism of continuous commutation failure and the mechanism of the energy storage power station, proposes an improved transient reactive power control strategy for energy storage power station, optimizes the transient control effect of energy storage power station, and further analyzed the impact of the two key factors on the control effect, such as the capacity and access location of the energy storage power station. Taking Henan multi-infeed HVDC system as an example, the simulation results verify that the proposed improved transient reactive power control strategy of energy storage power station can achieve a better commutation failure control effect. In addition, the traversal simulation results also revealed the influence of capacity and access location on the control effect of energy storage power station.

Key words： Multi-infeed HVDC system electrochemical energy storage continuous commutation failure improve reactive power control strategy capacity and access location

Received: 20 June 2020

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TM712

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	Li Peiping
	Yao Wei
	Gao Dongxue
	Zhang Jingchao
	Li Chenghao

Cite this article:

Li Peiping,Yao Wei,Gao Dongxue等. Transient Control and Influencing Factors Analysis of Multi-Infeed HVDC System Based on Electrochemical Energy Storage[J]. Transactions of China Electrotechnical Society, 2021, 36(zk1): 154-167.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L90073 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/Izk1/154

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