一种新型的高压直流输电系统直流侧谐波电压测量方法

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Abstract The paper proposes a novel method to measure HVDC harmonic voltage measurement at DC side. The harmonic voltage at DC side can be calculated easily by measuring the current flowing through the filter, combined with the filter parameters or the impedance-frequency characteristics of the filter. This method is realized by modifying the conventional filter, which can achieve high accuracy measurement of the voltage harmonics and expand functions of the DC filter. The paper presents the principles of this method and the harmonic voltage calculation method. Then, the advantages and disadvantages of different filters for harmonic voltage measurements are analyzed. Moreover, the influence on the harmonic voltage measurement is analyzed as the filter parameters changed. The superposition of different harmonic is also taken into account. Simulation and experiment test verify the proposed method. It is shown that this method is easy to implement, and has the advantages of simply calculation and high precision measurements.

Key words： HVDC harmonic voltage DC filter impedance-frequency characteristics

Received: 15 October 2013 Published: 30 November 2015

PACS:

TM721

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	Articles by authors
	Huang Yinlong
	Le Jian
	Mao Tao
	Wang Ni

Cite this article:

Huang Yinlong,Le Jian,Mao Tao等. A Novel Measurement Method of the Harmonic Voltage on the DC-Side of HVDC Transmission System[J]. Transactions of China Electrotechnical Society, 2015, 30(22): 144-152.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I22/144

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