• Title/Summary/Keyword: Electro-magnetic compatibility

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Design of the Electro-magnetic Compatibility(EMC) for Hybrid Electric Propulsion System (고전력 하이브리드 추진시스템의 전자파 적합성 설계 대책)

  • Lim, Jong-Kwang;Chang, Kyo-Gun
    • Journal of the Korea Institute of Military Science and Technology
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    • v.15 no.4
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    • pp.366-373
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    • 2012
  • In this paper, serious changes in the electromagnetic environment with increasing power and energy capabilities for electric driving and military mission are discussed. Design and control strategies on the Electro-Magnetic Compatibility(EMC) for the series hybrid electric vehicle are proposed to minimize the effects of electromagnetic interferences.

The Electro-Magnetic Susceptibility Test Method of a Road Vehicle Considering the Field Uniformity (전계의 균일성을 고려한 자동차의 전자파 내성시험 방법에 관한 연구)

  • Bae, Min-Gwan;Shin, Jae-Kon;Yong, Gee-Joong;Woo, Hyun-Gu
    • Transactions of the Korean Society of Automotive Engineers
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    • v.18 no.4
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    • pp.84-91
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    • 2010
  • Owing to revolutionary developments in automobile technologies, a variety of advanced vehicles - hybrid vehicle, hydrogen fuel-cell vehicle, electric vehicle, etc. - emerges recently. The safety is getting more important for developing automobiles. The electro-magnetic compatibility has to be assured, since those advanced vehicles are equipped with various new electronic systems. Electro-magnetic compatibility tests, in general, consist of an EMI(electro-magnetic interference) test and an EMS (electro-magnetic susceptibility) test. We investigated the susceptibility test method suggested in KMVSS (Korean Motor Vehicle Safety Standard) as the EMS test method. A series of experiments results that the above test method should be partially revised to comply with a Korean governmental standard method. In this paper, the some directions of modifications are presented to enhance the quality of the above EMS test method.

A Study on EMI of Communication system (통신 시스템의 전자파 장해 연구)

  • Park, Jong-Sung;Kim, Young-Joon
    • 한국정보통신설비학회:학술대회논문집
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    • 2007.08a
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    • pp.211-214
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    • 2007
  • Development of IT and electronics industries has make our life more convenient, yet at the cost of radio communication noise, malfunctioning of electronic appliance and risks against human health all resulting from EMI. Many states are tightening their EMI (Electro Magnetic Interference) regulations around the world and the EMI regulatory measures are likely to increase in terms of targets and types. Against this backdrop, this paper aims to introduce fundamental and adequate EMI countermeasures encompassing product production cycle from design to production stage.

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A Study on the Improving Proposals of the lACS's EMS Test Requirments for the Micro Processor Control Equipments of the Commercial Ship (선박용 프로세서 제어설비의 전자파 내성 시험규격(IACS) 개선안에 관한 연구)

  • 임재열;임준석;민경찬
    • Journal of the Korean Institute of Navigation
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    • v.22 no.4
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    • pp.45-50
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    • 1998
  • A recently constructed commercial ship is a complexive integrated system like a small city in which has a generator, power distributing facilities, various radio equipments and high power circuit breakers are installed. Therfore it could make a malfunction of the microprocessor in the various control units which are so important during the ocean voyage of larger ship. This paper has studied whether is properly required or not on the view of the actual electro magnetic compatibility status on the electromagnetic interference and suceptibility test requirments listed on the IACS (International Association of the Classification Society). Through these results, we are looking forward to the new suggestions of the Electro Magnetic Compatibility test in order to reduce the malfunction in the ship regarding test item, test level, and test condition.

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Development of a Multimedia Streaming System using MEP Based on MOST150 for Premium Express Buses (MOST150기반 MEP를 이용한 프리미엄 고속버스용 멀티미디어 스트리밍 시스템 개발)

  • Lee, Jae-kyu;Lee, Sang-yub;Cho, Hyun-joong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.42 no.5
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    • pp.1049-1057
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    • 2017
  • In-vehicle multimedia systems are one of the most important factors in the automotive industry. Especially, multimedia systems are more important in advanced commercial vehicles such as premium express buses. In this paper, we proposed a multimedia streaming system architecture using MEP(MOST Ethernet Packets) for premium express buses based on MOST150. We have designed and implemented the prototype of proposed multimedia streaming system. We have designed a board based on i.MX6 to operate a proposed multimedia streaming system. The software has designed a multimedia system for premium express buses based on Android which is an open source platform. MOST(Media Oriented Systems Transport) is a high-speed multimedia network technology for in-vehicle multimedia system. The MOST network is able to manage up to 64 devices and ring topology is used basically. In addition, the MOST Network meets EMI(Electro-Magnetic Interference)/ EMC(Electro-Magnetic Compatibility) requirements because it uses plastic optical fibers(POF).

Analysis of Electromagnetic Wave Absorbers for Applying Magnetic Levitation (자기부상체 적용을 위한 전자파 흡수체의 특성 분석)

  • Seo, Yong-beom;Kang, Hyun-il
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.65 no.1
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    • pp.13-17
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    • 2016
  • EMC (Electro Magnetic Compatibility) of the electrical railway must be ensured for safety of passenger. Maglev trains has not friction between the wheels and the rails because levitation by an permanent magnets, electromagnets and superconducting magnets etc. So, it is advantageous to maintain a high speed without noise and vibrations. In this paper, we investigated that the magnetic field of the before and after installation electromagnetic waves absorber in order to analyze the effects of electromagnetic waves. The theoretical analysis of the electromagnetic wave absorber was simulated using finite element method. The magnetic field properties of electromagnetic waves absorber were measured by EMI (Electro Magnetic Interference) test receiver.

ELECTROMAGNETIC COMPATIBILITY DESIGN FOR KOMPSAT-2

  • Lee, Na-Young;Lee, Jin-Ho
    • Journal of Astronomy and Space Sciences
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    • v.20 no.4
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    • pp.383-392
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    • 2003
  • It is quite essential that requirements allocation and analysis would be done for the electromagnetic compatibility (EMC) of all units when designing a satellite. Although KOMPSAT-2 inherits relatively large portions of the electrical designs from KOMPSAT-1, it has a new instrument and different combinations of sensors and actuators as well as their driving circuitry. Many requirements for the electromagnetic compatibility were modified and newly allocated for KOMPSAT-2. Naturally, they must be justified through analyses from the early stage of the program. In this paper, the EMC compatibility requirements for KOMPSAT2 are presented and verified for their suitability. In addition, some results, which were obtained from various analyses, are presented and discussed.

Safety Verification of Mounting Flight Video and Data Recorder in the Military Aircraft (군용항공기 내 비행 영상 및 데이터 녹화기 장착에 관한 안전성 검증)

  • Jung-Hyuk Kwon;Gyeong-Nam Kim;Won-Hwa Hwang;Wang-Sang Lee
    • Journal of Aerospace System Engineering
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    • v.17 no.5
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    • pp.42-57
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    • 2023
  • In this paper, to increase the research capability of flight missions and maintenance in operating military aircraft, we studied the requirements for additional mounting of flight video and data recorders and safety verification methods. The verification process of the recorder equipment itself, structural safety in the aircraft system, power and electrical safety, electromagnetic compatibility, and impact of airworthiness are described in accordance with military standards and operating environment requirements. In addition, through ground/flight tests, the results of functional operation suitable for the influence and demand of interference between the flight video and data recorder and other systems are also presented.

EMC Test of Deimos-2 satellite (Deimos-2 위성 EMC 시험)

  • Park, In-Yong
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.42 no.10
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    • pp.878-883
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    • 2014
  • This paper presents the test result of system level EMC of LEO satellite Deimos-2 FM that has been launched in June 20, 2014. The Deimos-2 satellite was designed considering the EMC of unit modules level in addition to the structure aspects. The Auto-Compatibility, Radiated Emission and Radiated Susceptibility test was conducted. The test result has meet the standard of system EMC of Deimos-2 program.

A Study on the SEU in the SRAM to proton Irradiation

  • Lho, Young-Hwan;Park, Bo-Kyun;Kim, Bong-Sun
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.2295-2297
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    • 2003
  • The major problem encountered in satellite design is EMI (Electro-Magnetic Interference) and EMC (Electro-Magnetic Compatibility). Here, our focus is on the effects of protons on the electronic system. The SEU (Single Event Upset) results from the level change of stored information due to photon radiation and temperature in the space and the nuclear power plant environment. The impact of SEU on PLD (Programmable Logic Devices) technology is most apparent in ROM/SRAM/DRAM devices wherein the state of storage cell can be upset. In this paper, a simple and powerful test techniques is suggested, and the results are presented for the analysis and future reference. The test results are compared with that of JPL test report. In our experiment, the proton radiation facility available at KIRAMS (Korea Institute of Radiological Medical Sciences) has been applied on a commercially available SRAM manufactured by Hynix Semiconductor Company.

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