DOI QR코드

DOI QR Code

DC 전해 커패시터의 고장진단 기준모델 입력을 위한 외부변수의 특성 고찰

Characteristic Investigation of External Parameters for Fault Diagnosis Reference Model Input of DC Electrolytic Capacitor

  • 박종찬 (오산대학교 전기시스템제어과) ;
  • 손진근 (가천대학교, 전기공학과)
  • 투고 : 2012.10.09
  • 심사 : 2012.11.13
  • 발행 : 2012.12.01

초록

DC Bus Electrolytic capacitors have been widely used in power conversion system because they can achieve high capacitance and voltage ratings with volumetric efficiency and low cost. This type of capacitors have been traditionally used for filtering, voltage smoothing, by-pass and other many applications in power conversion circuits requiring a cost effective and volumetric efficiency components. Unfortunately, electrolytic capacitors are some of the weakest components in power electronic converter. Many papers have proposed different methods or algorithms to determinate the ESR and/or capacitance C for fault diagnosis of the electrolytic capacitor. However, both ESR and C vary with frequency and temperature. Accurate knowledge of both values at the capacitors operating conditions is essential to achieve the best reference data of fault judgement. According to parameter analysis, the capacitance increases with temperature and the ESR decreases. Higher frequencies make the ESR and C to decrease. Analysis results show that the proposed electrolytic capacitor parameter estimation technique can be applied to reference signal of capacitor diagnosis systems successfully.

키워드

참고문헌

  1. United States Department of Defense, "US MIL -HDBK-217F Reliability Prediction of electronics Equipment," Version F, Notice 2, USA, 1995.
  2. M.L. Gasperi, "Life Prediction Modeling of Bus Capacitor in AC Variable-Frequency Drives", IEEE Trans. on Ind. Appl., vol., 41, no.6 ,pp.1430-1435, 2005, Nov./Dec. https://doi.org/10.1109/TIA.2005.858258
  3. J.W. Kolar and S.D. Round,"Analytical calculation of the RMS current stress on the DC-link capacitor of voltage-PWM converter systems", IEE Proc.-Electr. Power Appl., Vol. 153, No. 4, pp.535-543, July 2006. https://doi.org/10.1049/ip-epa:20050458
  4. P. Venet, F.Perisse, M.H. El-Hussein1 and G. Rojat, "Realization of a smart electrolytic capacitor circuit", IEEE of Industry Applications Magazine, No.1, pp. 16-20. 2002.
  5. 손진근, "전력변환장치에서의 DC 출력 필터 커패시터의 온라인 고장 검출기법", 전기학회 논문지, 제58P권 제4호, pp. 483-489, 2009년 12월.
  6. 김동준, 손진근, 전희종, "Zigbee 무선통신을 이용한 UPS DC링크 커패시터의 고장 모니터링 시스템 개발", 전기학회 논문지, 제61P권 제1호, pp. 41-46, 2012년 3 월.
  7. http://www.chemi-con.co.jp/e/index.html, "ALUMINUM ELECTROLYTIC CAPACITORS", CAT. No. E10011.

피인용 문헌

  1. Cause Analysis and Countermeasure of Tracking in Mobile Phone Charger vol.30, pp.6, 2016, https://doi.org/10.7731/KIFSE.2016.30.6.071
  2. Aging Tendency Investigation of Long Mileage Engine Control ECU vol.25, pp.5, 2017, https://doi.org/10.7467/KSAE.2017.25.5.616