Application of Kalman filter to estimate junction temperature in IGBT power modules
Knowledge of instantaneous junction temperature is essential for effective health management of power converters, enabling safe operation of the power semiconductors under all operating conditions. Methods based on fixed thermal models are typically unable to compensate for degradation of the therma...
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IEEE
2015
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| Online Access: | https://eprints.nottingham.ac.uk/33376/ |
| _version_ | 1848794617366970368 |
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| author | Eleffendi, Mohd. Amir Johnson, Christopher Mark |
| author_facet | Eleffendi, Mohd. Amir Johnson, Christopher Mark |
| author_sort | Eleffendi, Mohd. Amir |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Knowledge of instantaneous junction temperature is essential for effective health management of power converters, enabling safe operation of the power semiconductors under all operating conditions. Methods based on fixed thermal models are typically unable to compensate for degradation of the thermal path resulting from aging and the effect of variable cooling conditions. Thermosensitive electrical parameters (TSEPs), on the other hand, can give an estimate of junction temperature TJ, but measurement inaccuracies and the masking effect of varying operating conditions can corrupt the estimate. This paper presents a robust and noninvasive real-time estimate of junction temperature that can provide enhanced accuracy under all operating and cooling conditions when compared to model-based or TSEP-based methods alone. The proposed method uses a Kalman filter to fuse the advantages of model-based estimates and an online measurement of TSEPs. Junction temperature measurements are obtained from an online measurement of the on-state voltage, VCE(ON) , at high current and processed by a Kalman filter, which implements a predict-correct mechanism to generate an adaptive estimate of TJ. It is shown that the residual signal from the Kalman filter may be used to detect changes in thermal model parameters, thus allowing the assessment of thermal path degradation. The algorithm is implemented on a full-bridge inverter and the results verified with an IR camera |
| first_indexed | 2025-11-14T19:19:02Z |
| format | Article |
| id | nottingham-33376 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:19:02Z |
| publishDate | 2015 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-333762020-05-04T17:03:37Z https://eprints.nottingham.ac.uk/33376/ Application of Kalman filter to estimate junction temperature in IGBT power modules Eleffendi, Mohd. Amir Johnson, Christopher Mark Knowledge of instantaneous junction temperature is essential for effective health management of power converters, enabling safe operation of the power semiconductors under all operating conditions. Methods based on fixed thermal models are typically unable to compensate for degradation of the thermal path resulting from aging and the effect of variable cooling conditions. Thermosensitive electrical parameters (TSEPs), on the other hand, can give an estimate of junction temperature TJ, but measurement inaccuracies and the masking effect of varying operating conditions can corrupt the estimate. This paper presents a robust and noninvasive real-time estimate of junction temperature that can provide enhanced accuracy under all operating and cooling conditions when compared to model-based or TSEP-based methods alone. The proposed method uses a Kalman filter to fuse the advantages of model-based estimates and an online measurement of TSEPs. Junction temperature measurements are obtained from an online measurement of the on-state voltage, VCE(ON) , at high current and processed by a Kalman filter, which implements a predict-correct mechanism to generate an adaptive estimate of TJ. It is shown that the residual signal from the Kalman filter may be used to detect changes in thermal model parameters, thus allowing the assessment of thermal path degradation. The algorithm is implemented on a full-bridge inverter and the results verified with an IR camera IEEE 2015-03-31 Article PeerReviewed Eleffendi, Mohd. Amir and Johnson, Christopher Mark (2015) Application of Kalman filter to estimate junction temperature in IGBT power modules. IEEE Transactions on Power Electronics, 31 (2). pp. 1576-1587. ISSN 0885-8993 Kalman filters; Semiconductor junctions; Temperature measurement; Thermography (temperature measurement) Electrical parameter; Health management; Junction temperatures; Real time; Solder fatigue Insulated gate bipolar transistors (IGBT) http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7073633 doi:10.1109/TPEL.2015.2418711 doi:10.1109/TPEL.2015.2418711 |
| spellingShingle | Kalman filters; Semiconductor junctions; Temperature measurement; Thermography (temperature measurement) Electrical parameter; Health management; Junction temperatures; Real time; Solder fatigue Insulated gate bipolar transistors (IGBT) Eleffendi, Mohd. Amir Johnson, Christopher Mark Application of Kalman filter to estimate junction temperature in IGBT power modules |
| title | Application of Kalman filter to estimate junction temperature in IGBT power modules |
| title_full | Application of Kalman filter to estimate junction temperature in IGBT power modules |
| title_fullStr | Application of Kalman filter to estimate junction temperature in IGBT power modules |
| title_full_unstemmed | Application of Kalman filter to estimate junction temperature in IGBT power modules |
| title_short | Application of Kalman filter to estimate junction temperature in IGBT power modules |
| title_sort | application of kalman filter to estimate junction temperature in igbt power modules |
| topic | Kalman filters; Semiconductor junctions; Temperature measurement; Thermography (temperature measurement) Electrical parameter; Health management; Junction temperatures; Real time; Solder fatigue Insulated gate bipolar transistors (IGBT) |
| url | https://eprints.nottingham.ac.uk/33376/ https://eprints.nottingham.ac.uk/33376/ https://eprints.nottingham.ac.uk/33376/ |