A System for Thermal Model Verification of a Power Switch

Author

Ikonen, M. ; Hasa, H. ; Rauma, Kalle ; Silventoinen, Pertti

Author_Institution

Dept. of Electr. Eng., Lappeenranta Univ. of Technol.

fYear

2006

fDate

18-22 June 2006

Firstpage

1

Lastpage

4

Abstract

In order to verify a numerical thermal model for IGBTs (insulated-gate bipolar transistor), a measurement and control system was constructed and it is presented in this paper. It is based on a commercially available frequency converter which is modified and controlled by a dSPACE system. The galvanic isolation is achieved using optic cables in the control and measurement of the converter. The temperature of the IGBT chip in the converter is measured with a K-type thermocouple. The thermal model is run on-line in the dSPACE, and it uses the switching commands and the measured output current as inputs. The load of the converter is a simple LR-circuit. It is shown that the introduced method can be used to verify a thermal model

Keywords

optical cables; power semiconductor switches; switching convertors; thermocouples; IGBT chips; K-type thermocouples; control system; dSPACE system; frequency converter; galvanic isolation; insulated-gate bipolar transistor; measurement system; optic cables; power switch; thermal model verification; Control system synthesis; Control systems; Frequency conversion; Galvanizing; Insulated gate bipolar transistors; Insulation; Numerical models; Optical frequency conversion; Power system modeling; Semiconductor device measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE

Conference_Location

Jeju

ISSN

0275-9306

Print_ISBN

0-7803-9716-9

Type

conf

DOI

10.1109/PESC.2006.1711833

Filename

1711833