电磁发射系统逆变装置的高频干扰电流测量

doi:10.19595/j.cnki.1000-6753.tces.180545

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Abstract High frequency interference current is a key evaluating indicator for the characteristic of electromagnetic interference of power electronics conversion devices. With the development of power electronics technology, the power level of power conversion devices is constantly increasing, and the power current of the electric energy conversion devices in the electromagnetic launch system reaches up to 10kA. Current probes conventionally used in EMC (electromagnetic compatibility) detection cannot meet the test requirements of high current system due to the magnetic saturation problem. Meanwhile, since the conventional high current sensors adopt the active amplifier, the high-frequency output noise is large, and the sensitivity is low, which is not suitable for the high frequency interference current measurement in high current power devices. In this paper, a flexible current probe based on Rogowski coil and passive matching resistance is proposed. It can achieve accurate measurement of high current interference current in high current system, and also has low output noise level. Since the proposed probe has flexible structure, both differential mode and common mode current detection can be easily carried out.

Key words： Electromagnetic launch high current system high frequency interference current measurement passive flexible current probe

Received: 08 April 2018 Published: 29 December 2018

PACS:

TM933.13

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	Li Jianxuan
	Zhao Zhihua
	Zhang Xiangming
	Zhang Lei

Cite this article:

Li Jianxuan,Zhao Zhihua,Zhang Xiangming等. Measurement Technology of High Frequency Interference Current of the Electric Energy Conversion Device in the Electromagnetic Launch System[J]. Transactions of China Electrotechnical Society, 2018, 33(24): 5805-5810.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180545 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I24/5805

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