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Distributed Plastic Gapped Magnetic Shielding to Electromagnetic Interference for Electric Transportation

Cheng Ka-wai Eric and Zou Yu
Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong

Abstract—Magnetic shielding is an important design for all electrical system. This is especially important to today’s electric mobility because nearly all traction drives are using electric motor and they are driven by high frequency carrier wave from 1kHz to 100kHz. The interference to the signal system of vehicle control unit should cost a damaging effect. Besides the use of filter of metal shielding, a new plastic based magnetic shielding technique is introduced that provides a flexible shielding for the EMI isolation. The new material is especially useful for transportation system because they are light weight, non-brittle, lower cost and prominent performance in high frequency. 
 
Index Terms—EMI Shielding, Plastic magnetic, high frequency, EMC, EMI, railway system, electric mobility

Cite: Cheng Ka-wai Eric and Zou Yu, "Distributed Plastic Gapped Magnetic Shielding to Electromagnetic Interference for Electric Transportation," International Journal of Mechanical Engineering and Robotics Research, Vol. 6, No. 1, pp. 11-15, January 2017. DOI: 10.18178/ijmerr.6.1.11-15