基于智能模块的高压直流真空断路器研究

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Abstract As an important part of InterGrid (energy internet),the smart grid has been developed rapidly in recent years.High voltage direct current (HVDC) transmission,which has irreplaceable advantages in the smart grid,is widely used in renewable energy,such as wind and photo-voltaic collector power grid.But so far,the core component for control and protection of the system,HVDC circuit breaker,still exists R&D technical bottleneck.By analyzing the typical scheme of HVDC breaking,this paper proposes the current commutation breaking technique based on rapid mechanism and linkage closing,provides the overall scheme of HVDC short-circuit breaking composed of serial connected DC intelligent vacuum current breakers (VCB),and opens up a new possible solution to HVDC circuit breakers.For analyzing the HVDC breaking process,the continuous transition model (CTM),Farrall formula,and breakdown statistical property is used in the numerical simulation of the early,medium,the final stage of the dielectric recovery process respectively in the region where arc is forced to zero.At the same time,the main affecting factors and their effects for each dielectric recovery stage are analyzed by using contrast analysis method.By introducing the successful experience of AC system breaking with serial connected intelligent vacuum interrupter modules,this paper explores a new path for HVDC short breaking.The zero region analysis of the DC vacuum arc breaking process is given,which can help the development of DC intelligent vacuum interrupter modules.

Key words： InterGrid smart grid intelligent module HVDC VCB dielectric recovery

Received: 14 February 2015 Published: 14 September 2015

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TM561

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	Zou Jiyan
	Liu Xiaoming
	Yu Deen

Cite this article:

Zou Jiyan,Liu Xiaoming,Yu Deen. Investigations on the HVDC Vacuum Circuit Breaker Based on Intelligent Models[J]. Transactions of China Electrotechnical Society, 2015, 30(13): 47-55.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I13/47

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