Outputs (187)

High-frequency modulated secondary-side self-powered isolated gate driver for full range PWM operation of SiC power MOSFETs (2017)
Presentation / Conference Contribution
Garcia, J., Gurpinar, E., & Castellazzi, A. High-frequency modulated secondary-side self-powered isolated gate driver for full range PWM operation of SiC power MOSFETs. Presented at 2017 IEEE Applied Power Electronics Conference and Exposition (APEC)

The present work proposes a solution for an isolated gate driver suitable for SiC MOSFETs. The driver is implemented by means of two small magnetic transformers, to provide the turn-on and turn-off gate signals, as well as the power required for an a... Read More about High-frequency modulated secondary-side self-powered isolated gate driver for full range PWM operation of SiC power MOSFETs.

A branch current reallocation based energy balancing strategy for the modular multilevel matrix converter operating around equal frequency (2017)
Journal Article
Fan, B., Wang, K., Gu, C., Wheeler, P., & Li, Y. (2018). A branch current reallocation based energy balancing strategy for the modular multilevel matrix converter operating around equal frequency. IEEE Transactions on Power Electronics, 33(2), 1105-1117. https://doi.org/10.1109/TPEL.2017.2685431

Modular multilevel matrix converter (M3C) is a promising topology for medium-voltage high-power applications. Due to the modular structure, it features easy scalability, high quality output waveforms and superior fault tolerance. However, M3C suffers... Read More about A branch current reallocation based energy balancing strategy for the modular multilevel matrix converter operating around equal frequency.

Comparison of grain to grain orientation and stiffness mapping by spatially resolved acoustic spectroscopy and EBSD (2017)
Journal Article
Mark, A., Li, W., Sharples, S., & Withers, P. (in press). Comparison of grain to grain orientation and stiffness mapping by spatially resolved acoustic spectroscopy and EBSD. Journal of Microscopy, https://doi.org/10.1111/jmi.12550

Our aim was to establish the capability of spatially resolved acoustic spectroscopy (SRAS) to map grain orientations and the anisotropy in stiffness at the sub-mm to micron scale by comparing the method with electron backscatter diffraction (EBSD) un... Read More about Comparison of grain to grain orientation and stiffness mapping by spatially resolved acoustic spectroscopy and EBSD.

Coupled electrothermal two-dimensional model for lightning strike prediction and thermal modeling using the TLM method (2017)
Journal Article
Elkalsh, A., Sewell, P., Benson, T. M., & Vukovic, A. (2017). Coupled electrothermal two-dimensional model for lightning strike prediction and thermal modeling using the TLM method. IEEE Journal on Multiscale and Multiphysics Computational Techniques, 2, 38-48. https://doi.org/10.1109/JMMCT.2017.2683066

This paper presents a fully coupled two-dimensional (2-D) multiphysics model for predicting the location of the arc discharge and lightning channel, and modeling its thermal and electrical behavior as a highly conductive plasma channel. The model mak... Read More about Coupled electrothermal two-dimensional model for lightning strike prediction and thermal modeling using the TLM method.

Analytical thermal model for fast stator winding temperature prediction (2017)
Journal Article
Sciascera, C., Giangrande, P., Papini, L., Gerada, C., & Galea, M. (2017). Analytical thermal model for fast stator winding temperature prediction. IEEE Transactions on Industrial Electronics, 64(8), 6116-6126. https://doi.org/10.1109/TIE.2017.2682010

This paper introduces an innovative thermal modelling technique which accurately predicts the winding temperature of electrical machines, both at transient and steady state conditions, for applications where the stator Joule losses are the dominant h... Read More about Analytical thermal model for fast stator winding temperature prediction.

Fault signal propagation through the PMSM motor drive systems (2017)
Journal Article
Li, J., Sumner, M., Arellano-Padilla, J., & Zhang, H. (in press). Fault signal propagation through the PMSM motor drive systems. IEEE Transactions on Industry Applications, 53(3), https://doi.org/10.1109/TIA.2017.2677881

This paper describes how a mechanical disturbance on the shaft of a variable speed permanent magnet motor (PMSM) is propagated to the supply input side of the drive system, and therefore may be detected by monitoring specific frequency components in... Read More about Fault signal propagation through the PMSM motor drive systems.

Evaluation of SiC Schottky diodes using pressure contacts (2017)
Journal Article
Ortiz Gonzalez, J., Alatise, O., Aliyu, A. M., Rajaguru, P., Castellazzi, A., Ran, L., Mawby, P., & Bailey, C. (2017). Evaluation of SiC Schottky diodes using pressure contacts. IEEE Transactions on Industrial Electronics, 64(10), 8213-8223. https://doi.org/10.1109/TIE.2017.2677348

The thermomechanical reliability of SiC power devices and modules is increasingly becoming of interest especially for high power applications where power cycling performance is critical. Press-pack assemblies are a trusted and reliable packaging solu... Read More about Evaluation of SiC Schottky diodes using pressure contacts.

Control of a direct matrix converter with modulated model predictive control (2017)
Journal Article
Vijayagopal, M., Zanchetta, P., Empringham, L., De Lillo, L., Tarisciotti, L., & Wheeler, P. (2017). Control of a direct matrix converter with modulated model predictive control. IEEE Transactions on Industry Applications, 53(3), 2342-2349. https://doi.org/10.1109/TIA.2017.2674602

This paper investigates the use of a model- predic-tive control strategy to control a direct matrix converter. The proposed control method combines the features of the classical Model Predictive Control and the Space Vector Modulation technique into... Read More about Control of a direct matrix converter with modulated model predictive control.

Prognostic System for Power Modules in Converter Systems Using Structure Function (2017)
Journal Article
Aliyu, A. M., & Castellazzi, A. (2018). Prognostic System for Power Modules in Converter Systems Using Structure Function. IEEE Transactions on Power Electronics, 33(1), 595-605. https://doi.org/10.1109/TPEL.2017.2672823

This paper proposes an on-board methodology for monitoring the health of power converter modules in drive systems, using vector control heating and structure function to check for degradation. It puts forward a system that is used on-board to measure... Read More about Prognostic System for Power Modules in Converter Systems Using Structure Function.

Complexity Reduction of Multiscale UTLM Cell Clusters (2017)
Journal Article
Sewell, P., Benson, T. M., Vukovic, A., & Meng, X. (2017). Complexity Reduction of Multiscale UTLM Cell Clusters. IEEE Journal on Multiscale and Multiphysics Computational Techniques, 2, 18-28. https://doi.org/10.1109/jmmct.2017.2670613

Time domain electromagnetic simulations employing unstructured tetrahedral meshes offer smooth boundary approximations and graded meshes for multiscale problems. However, multiscale effects may arise not only as a consequence of fine geometry, but al... Read More about Complexity Reduction of Multiscale UTLM Cell Clusters.