Model-based temperature estimation of power electronics systems

Pamela J. Tannous, Satya R.T. Peddada, James Allison, Thomas Foulkes, Robert C.N. Pilawa-Podgurski, Andrew G Alleyne

Research output: Contribution to journalArticle

Abstract

This paper proposes a method for accurate temperature estimation of thermally-aware power electronics systems. The duality between electrical systems and thermal systems was considered for thermal modeling. High dimensional thermal models present a challenge for online estimation. Therefore, the complexity of the thermal network was reduced by applying a structure-preserving model order reduction technique. An optimal number and placement of temperature sensors were used in a Kalman filter to accurately estimate the dynamic spatial thermal behavior of the system. The optimal number of temperature sensors was found by comparing the actual values of the states obtained from the thermal model to the estimated values of the states obtained from the Kalman filter. The optimal placement of temperature sensors was found by maximizing the trace of the observability Gramian. Simulation and experimental results validate the approach on a prototype inverter.

Original languageEnglish (US)
Pages (from-to)206-215
Number of pages10
JournalControl Engineering Practice
Volume85
DOIs
StatePublished - Apr 2019

Fingerprint

Power Electronics
Power electronics
Temperature Sensor
Model-based
Thermal Model
Temperature sensors
Kalman Filter
Placement
On-line Estimation
Thermal Modeling
Model Order Reduction
Kalman filters
Temperature
Inverter
Observability
Duality
High-dimensional
Trace
Prototype
Model structures

Keywords

  • Dynamic thermal estimation
  • Fault detection
  • Kalman filter
  • Structure-preserving model order reduction
  • Thermal modeling

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Model-based temperature estimation of power electronics systems. / Tannous, Pamela J.; Peddada, Satya R.T.; Allison, James; Foulkes, Thomas; Pilawa-Podgurski, Robert C.N.; Alleyne, Andrew G.

In: Control Engineering Practice, Vol. 85, 04.2019, p. 206-215.

Research output: Contribution to journalArticle

Tannous, Pamela J. ; Peddada, Satya R.T. ; Allison, James ; Foulkes, Thomas ; Pilawa-Podgurski, Robert C.N. ; Alleyne, Andrew G. / Model-based temperature estimation of power electronics systems. In: Control Engineering Practice. 2019 ; Vol. 85. pp. 206-215.
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