Reliability Assessment of IGBT Through Modelling and Experimental Testing

2020
Ahsan, Mominul
How, Siew Teay
Batunlu, Canras
Albarbar, Alhussein
Lifetime of power electronic devices, in particular those used for wind turbines, is short due to the generation of thermal stresses in their switching device e.g., IGBT particularly in the case of high switching frequency. This causes premature failure of the device leading to an unreliable performance in operation. Hence, appropriate thermal assessment and implementation of associated mitigation procedure are required to put in place in order to improve the reliability of the switching device. This paper presents two case studies to demonstrate the reliability assessment of IGBT. First, a new driving strategy for operating IGBT based power inverter module is proposed to mitigate wire-bond thermal stresses. The thermal stress is characterised using finite element modelling and validated by inverter operated under different wind speeds. High-speed thermal imaging camera and dSPACE system are used for real time measurements. Reliability of switching devices is determined based on thermoelectric (electrical and/or mechanical) stresses during operations and lifetime estimation. Second, machine learning based data-driven prognostic models are developed for predicting degradation behaviour of IGBT and determining remaining useful life using degradation raw data collected from accelerated aging tests under thermal overstress condition. The durations of various phases with increasing collector-emitter voltage are determined over the device lifetime. A data set of phase durations from several IGBTs is trained to develop Neural Network (NN) and Adaptive Neuro Fuzzy Inference System (ANFIS) models, which is used to predict remaining useful life (RUL) of IGBT. Results obtained from the presented case studies would pave the path for improving the reliability of IGBTs.

Suggestions

Smart sensing system for enhanceing reliability of power electronic devices used in wind turbines
Teay, S. H.; Batunlu, C.; Albarbar, A. (2017-06-01)
Reliability of modern power systems, in particular those use wind and solar energies, is affected by the relatively short lifetime of the associated power electronic converters (PECs). Thermal stress has been identified as one of the commonest causes for failures in PECs. However, existing thermal monitoring systems are expensive, bulky and with no intelligent capabilities, which limit their full acceptance as monitoring and control tools in operational power plants. This work presents autonomous and inexpe...
Lithium-intercalation oxides for rechargeable batteries
Ceder, Gerbrand; VanderVen, Anton; Aydınol, Mehmet Kadri (Springer Science and Business Media LLC, 1998-09-01)
Since the introduction of the LixC/LiCoO2 cell, rechargeable lithium batteries have become the technology of choice for applications where volume or weight are a consideration (e.g., laptop computers and cell phones). The focus of current research in cathode-active materials is on less-expensive or higher-performance materials than LiCoO2. This article illustrates how first-principles calculations can play a critical role in obtaining the understanding needed to design improved cathode oxides.
Investigation of Au-Ag-Cu Alloy Electrodeposition to Electromechanical Systems
Cagan, Berkay; ERDOĞAN, METEHAN; Karakaya, İshak; Yilmaz, Cemil; Yurdakul, Burak (2020-04-01)
© 2020 ECS - The Electrochemical Society.Electromechanical systems, which provide electrical power and data connection between moving terminals require high conduction and erosion resistant surfaces. Transfers of electrical power and data are accomplished by the contact of drum and brush wires. The simultaneous electrochemical deposition of desired Au-Ag-Cu alloy compositions, which can be used to coat the brush wires, was investigated in this study. In the scope of the study, the static potential and cycli...
Electrostatic Stabilization of Alumina Nanopowder Suspensions
Çınar, Simge (American Scientific Publishers, 2014-03-01)
Electrostatic stabilization has an impact on a broad range of applications. Previous research has shown that concentrated alumina nanopowder suspensions can be stabilized at specific ranges of ionic strength and pH. This study investigated the stability of alumina nanopowder suspensions in terms of viscosity measurements as a function of different electrolyte concentration and suspension pH. Using alumina nanopowders with an average particle size of about 50 nm, stable suspensions were obtained with 0.020 ≤...
Performance of a dynamic voltage restorer for a practical situation
Oğuz, Gülçin; Ermiş, Muammer; Department of Electrical and Electronics Engineering (2004)
Among most severe power system disturbances those degrading power quality are voltage sags and transient interruptions. Even voltage sags lasting only a few tens of milliseconds are enough to bring entire production lines to standstill, causing considerable economic damage as well as endangering the production equipment. Therefore necessary measures have to be taken to protect sensitive loads which are susceptible to these voltage disturbances. Among the solution candidates such as, Uninterruptible Power Su...
Citation Formats
M. Ahsan, S. T. How, C. Batunlu, and A. Albarbar, “Reliability Assessment of IGBT Through Modelling and Experimental Testing,” IEEE Access, pp. 39561–39573, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51630.