直流GIL中固-气界面电荷特性研究综述Ⅰ：测量技术及积聚机理

doi:10.19595/j.cnki.1000-6753.tces.180915

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Abstract

As an advanced power transmission method, gas insulated transmission line (GIL) can transmit power under special conditions. However, charge accumulation on the insulator surface in GIL is very severe under DC field, leading to flashover easily, which restricts the application of GIL in DC projects. Therefore, it is of great significance to study charge accumulation characteristics at gas-solid interface in DC GIL. In this series, research results in this area were reviewed. In Part I, firstly, three surface charge measurement methods were summarized, and the inversion algorithm based on the image processing technique was introduced. Besides, mechanisms and simulation models of charge accumulation were analyzed based on early studies and recent research status. Two patterns of charge accumulation were proposed, namely dominant charging and charge speckles. Finally, proposals from three aspects, i.e. measurement, modeling, and mechanism, were presented for future work.

Key words： DC gas insulated transmission line (GIL) surface charge charge accumulation review

Received: 29 May 2018 Published: 30 October 2018

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	Zhang Boya
	Zhang Guixin

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Zhang Boya,Zhang Guixin. Review of Charge Accumulation Characteristics at Gas-Solid Interface in DC GIL, Part I: Measurement and Mechanisms[J]. Transactions of China Electrotechnical Society, 2018, 33(20): 4649-4662.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180915 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I20/4649

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