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| Research on Radiated Electric Field Noise of Pantograph Arc |
| Guo Fengyi,Wang Xili,Wang Zhiyong,Zhang Yanli,Wang Baowei |
| Faculty of Electrical and Control Engineering, Liaoning Technical University Huludao 125105 China |
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Abstract In recent years, with the continuous increasing of electric locomotive running speed, electromagnetic noise of pantograph arc gets more and more serious and has become a kind of security risk of electric railway’s operation. To study the electromagnetic noise and suppression methods of pantograph arc, an electromagnetic noise experimental system was developed. The experimental system is composed of a special 1m echoic chamber, pantograph arc generator and pantograph arc detection system. With the experimental system, 64 groups of radiation electromagnetic noise experiments were conducted under different contact force, contact current and sliding speed conditions. The experimental materials are metal impregnation carbon slide and Cu contact wire respectively. The radiated electromagnetic noise is mainly distributed in the frequency band from 30MHz to 500MHz. With the increase of contact current, the amplitude of radiated electric field noise increases gradually as well as the interference frequency band. With the increase of contact pressure, the amplitude firstly increases and then decreases, the interference frequency band firstly become narrow and then widen.
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Received: 10 August 2014
Published: 08 September 2015
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2015, Vol. 30 
