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Abstract
Thermal loading of power devices are closely related to the reliability performance of the whole converter system. The electrical loading and device rating are both important factors that determine the loss and thermal behaviors of power semiconductor devices. In the existing loss and thermal models, only the electrical loadings are focused and treated as design variables, while the device rating is normally pre-defined by experience with limited design flexibility. Consequently, a more complete loss and thermal model is proposed in this paper, which takes into account not only the electrical loading but also the device rating as input variables. The quantified correlation between the power loss, thermal impedance and silicon area of Insulated Gate Bipolar Transistor (IGBT) is mathematically established. By this new modeling approach, all factors that have impacts to the loss and thermal profiles of the power devices can accurately be mapped, enabling more design freedom to optimize the efficiency and thermal loading of the power converter. The proposed model can be further improved by experimental tests, and it is well agreed by both circuit and Finite Element Method (FEM) simulation results.
Original language | English |
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Journal | I E E E Transactions on Power Electronics |
Volume | 30 |
Issue number | 5 |
Pages (from-to) | 2556 - 2569 |
Number of pages | 14 |
ISSN | 0885-8993 |
DOIs | |
Publication status | Published - May 2015 |
Keywords
- Finite element method (FEM)
- Insulated gate bipolar transistor (IGBT)
- Power semiconductor
- Reliability
- Thermal model
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Dive into the research topics of 'Complete Loss and Thermal Model of Power Semiconductors Including Device Rating Information'. Together they form a unique fingerprint.Projects
- 1 Finished
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Center Of Reliable Power Electronics (CORPE)
Blaabjerg, F., Munk-Nielsen, S., Pedersen, K. & Popok, V.
01/04/2011 → 31/12/2016
Project: Research