单回不对称输电线路分布参数的测量方法

doi:10.19595/j.cnki.1000-6753.tces.170052

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Abstract There is no effective method to measure the distributed parameters of single-circuit asymmetric transmission line. Therefore, a new method to measure the distributed parameters of single-circuit asymmetric transmission line was proposed. A distributed parameter model was established to fully consider the distribution effect of the transmission line. Laplace transform was used to solve the transmission line equations. A method for calculating the distributed parameters by using the measured voltage and current data sampled at both ends of the line was presented. Then the needed measurement modes and measurement steps were given. The proposed method demands high synchronization of the data sampled at both sides of the line. Therefore, GPS/Beidou time is used to ensure the synchronization of the data. For the possible interference, a corresponding solution was proposed. PSCAD simulation experiments were carried out to verify the proposed method. The simulation results show that the distributed parameter model is precise and the solution of the transmission line equations is accurate. The proposed method is robust.

Key words： Single-circuit asymmetric transmission line synchronous measurement phase parameter measurement distributed parameter model Laplace transform

Received: 16 January 2017 Published: 14 March 2018

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TM934

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	Ni Shiyuan
	Hu Zhijian
	Fu Chenyu

Cite this article:

Ni Shiyuan,Hu Zhijian,Fu Chenyu. A Method for Measuring the Distributed Parameters of Single-Circuit Asymmetric Transmission Line[J]. Transactions of China Electrotechnical Society, 2018, 33(5): 1086-1095.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170052 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I5/1086

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