圆柱电极下悬浮颗粒物对直流导线电晕特性的作用机理研究

doi:10.19595/j.cnki.1000-6753.tces.190137

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Abstract In recent years, the impacts of suspended aerosols (haze and fog) on electromagnetic environment of HVDC transmission lines have become an emerging research issue. At present, the mechanism of suspended aerosols on corona characteristics of HVDC conductors is still unclear. In this paper, the effect of aerosols on the ionized field of the current wire was studied using the coaxial cylindrical electrode and burning incense aerosols to simulate haze atmospheric condition. The influence of aerosols of different mass concentrations on the ionized field of HVDC conductors was investigated. The mechanism of suspended aerosols affecting corona characteristics of DC conductors was analyzed and explained in combination with the calculation of test results. It is concluded that, with the increase of suspended aerosols, the degree of corona discharge increases, ions adhesion on suspended aerosols results in a decrease in equivalent mobility and a decrease in measured current density. The increase of total space charge density suspended in the air causes the increase of the measured electric field strength.

Key words： HVDC aerosol corona characteristics mechanism research

Received: 28 January 2019 Published: 27 March 2020

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TM851

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	Zhu Yijia
	Lu Tiebing

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Zhu Yijia,Lu Tiebing. Mechanism Research of the Suspended Aerosols on the Corona Characteristics of HVDC Conductors in a Cylindrical Corona Cage[J]. Transactions of China Electrotechnical Society, 2020, 35(6): 1166-1172.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190137 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I6/1166

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