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Parameter Estimation by OE model of DC-DC Converter System for Operating Status Diagnosis  

Jeon, Jin-Hong (Industry Applications Research Laboratory, Korea Electro-technology Research Institute)
Kim, Tae-Jin (Industry Applications Research Laboratory, Korea Electro-technology Research Institute)
Kim, Kwang-Su (Industry Applications Research Laboratory, Korea Electro-technology Research Institute)
Kim, Kwang-Hwa (Industry Applications Research Laboratory, Korea Electro-technology Research Institute)
Publication Information
KIEE International Transaction on Electrical Machinery and Energy Conversion Systems / v.4B, no.4, 2004 , pp. 206-210 More about this Journal
Abstract
This paper deals with a parameter estimation of the DC-DC converter system for its diagnosis. Especially, we present the results of parameter estimation for the DC-DC converter model by the system identification method. The parameter estimation for the DC-DC converter system aims at the diagnosis of its operating status. For the operating status diagnosis of the DC-DC converter system, we assume that the DC-DC converter system is an equivalent model of the Buck converter and estimate the main parameter for on-line diagnosis. In addition, for verification of an estimated parameter, we compare a bode plot of the estimated system transfer function and measurement results of the HP4194 instrument. It is a control system analyzer for system transfer function measurement. Our results confirm that the main parameter for diagnosis of the DC-DC converter system can be estimated by the system identification method and that the aging status of the system can be predicted by these results on operating status.
Keywords
DC-DC Converter; on-line diagnosis; parameter estimation; system identification;
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  • Reference
1 CLERC Guy, etc. ‘Cegely's Diagnostic tools for electrical drives’, IEEE. SDEMPED 01, pp. 85-89
2 Jin-Hong JEON, etc, ‘Parameter Estimation of DC-DC Converter System for Operating Status Diagnosis’, The ICEE2004, pp.881-884, July 2004, Sapporo, Japan
3 Amini Lahyani, etc, ‘Failure Prediction of Electrolytic Capacitors during Operation of a Switch mode Power Supply’, IEEE Transaction on PE., Vol.13, No.6, Nov. 1998
4 Lennart Ljung, System Identification, Pentice Hall, 1999
5 A.J. Margues Cardoso, ‘Converter Fault Diagnosis in Variable Speed DC Drives, by Park's Vector’, ISIE'97, pp. 497-500
6 Jin-Hong JEON, etc, 'The Design and Implementation of Platform for DC-DC Converter Diagnosis Using Java Virtual Machine', The Energy Engineering Journal, Volume 13-A Number 3 pp.213-218, September 2004
7 Tae-Jin KIM, etc. 'Diagnosis of DC/DC converter aging with parasitic resistance', KIPE. PEAC 2003, 2003. 7, pp. 97-101
8 A. Landi, L. Sani, 'Modulating function testing the performance of switch mode converter', IEEE. SDEMPED 01, pp.195-200