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박갑수(Gab-Su Park),조은제(Eun-Je Jo),박희철(Hee-Chul Park),이생곤(Saeng-Gon Lee),송병기(Byong-kee Song) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.5
This paper described a Mascon position sensor equipped with a microprocessor. The conventional analog sensors do not send accurate information to the related system as the sensor ages. Also, using a sensor without function of characteristic adjust to the system has problems because of information mismatch between them. The sensor we developed is possible to compensate an error or a deviation and to match with other sensors by the internal microprocessor. Circuits of power source and signal conversion are designed to dual line to acquire the stability of the system. 본 논문에서는 마이크로프로세서를 구비한 마스콘 포지션센서에 대해 기술하였다. 기존 아나로그 센서는 특성이 변화하면서 시스템에 정확한 값을 제공하지 못하며, 또한 시스템에 다른 센서를 적용하면 특성조정이 어려웠다. 본 논문에서 개발한 센서는 마이크로프로세서에 의해 오차 또는 편자보정이 가능하고, 다른 센서를 사용하여도 특성의 조정이 가능하다. 전원 및 신호변환 회로가 이중화되어 시스템의 안정성을 확보할 수 있다.
부산 도시철도 2호선 VVVF인버터의 GDP진단기술 및 장치
박갑수(Gab-Su Park),조은제(Eun-Je Jo),서광수(Kwang-Su Seo),곽동원(Dong-Won Gwak),길경석(Gyung-Suk Kil) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
This paper proposed the research that it is the GDP's characteristic for GTO's TURN ON/OFF and diagnostic technique. While we are operating the 2nd line subway, we suggested accurate and reliable diagnostic technique. We developed the analysis device that it is possible to have the output waveform of each point, the GATE ON/OFF waveform, the load test, the max rated test, and then we had accurate diagnostic technique. We administered diagnostic test about badness GDP. We progressed to the precision test based on the result of the test. Appling to a real car, we had got the accurate conclusion about the diagnostic result, and acquired a technique for management method of trouble. Developed device use load of the same as a car, and then it was designed to get the same waveform and it is possible to measure the most OFF current. We prevented GTO damage through analyzing the accurate waveform for each measurement point of GDP. If we apply to other system of the same way, it will be contribute to the safety service and to prevent some of accidents.