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Short-circuit fault analysis and isolation strategy for matrix converters (2015)
Journal Article
Wang, L., De Lillo, L., Brunson, C., Empringham, L., & Wheeler, P. (in press). Short-circuit fault analysis and isolation strategy for matrix converters. Journal of Central South University of Technology, 22(9), https://doi.org/10.1007/s11771-015-2886-y

The behavior of matrix converter (MC) drive systems under the condition of MC short-circuit faults is comprehensively investigated. Two isolation strategies using semiconductors and high speed fuses (HSFs) for MC short-circuit faults are examined and... Read More about Short-circuit fault analysis and isolation strategy for matrix converters.

Experimental comparison of a matrix converter using Si IGBT and SiC MOSFETs (2015)
Journal Article
Trentin, A., De Lillo, L., Empringham, L., Wheeler, P., & Clare, J. C. (2015). Experimental comparison of a matrix converter using Si IGBT and SiC MOSFETs. IEEE Journal of Emerging and Selected Topics in Power Electronics, 3(2), https://doi.org/10.1109/JESTPE.2014.2381001

This paper presents an analytical and experimental comparison between comparable Silicon (Si) IGBTs and Silicon Carbide (SiC) MOSFETS when used in a direct AC/AC matrix converter circuit. The switching performance of the two devices is analysed and t... Read More about Experimental comparison of a matrix converter using Si IGBT and SiC MOSFETs.

Open circuit fault detection and diagnosis in matrix converters (2014)
Journal Article
Brunson, C., Empringham, L., De Lillo, L., Wheeler, P., & Clare, J. C. (2014). Open circuit fault detection and diagnosis in matrix converters. IEEE Transactions on Power Electronics, 30(5), https://doi.org/10.1109/TPEL.2014.2364152

With the increased use of power electronics in aerospace, automotive, industrial, and energy generation sectors, the demand for highly reliable and power dense solutions has increased. Matrix converters become attractive when taking into account dema... Read More about Open circuit fault detection and diagnosis in matrix converters.

Reduction of output common mode voltage using a novel SVM implementation in matrix converters for improved motor lifetime (2014)
Journal Article
Espina, J., Ortega, C., De Lillo, L., Empringham, L., Balcells, J., & Arias, A. (2014). Reduction of output common mode voltage using a novel SVM implementation in matrix converters for improved motor lifetime. IEEE Transactions on Industrial Electronics, 61(11), https://doi.org/10.1109/TIE.2014.2304931

This paper presents the study of an alternative Space Vector Modulation (SVM) implementation for Matrix Converters (MC) which reduces the output Common Mode (CM) voltage. The strategy is based on replacing the MC zero vectors by the rotating ones. In... Read More about Reduction of output common mode voltage using a novel SVM implementation in matrix converters for improved motor lifetime.

Design of a high-force-density tubular motor (2014)
Journal Article
Galea, M., Buticchi, G., Empringham, L., De Lillo, L., & Gerada, C. (2014). Design of a high-force-density tubular motor. IEEE Transactions on Industry Applications, 50(4), https://doi.org/10.1109/TIA.2014.2300190

This paper deals with the design, construction and experimental verification of a high force density, tubular, linear, permanent magnet motor, driven from a high power density matrix converter for an aerospace application. The work also describes the... Read More about Design of a high-force-density tubular motor.

Design challenges in the use of silicon carbide JFETs in matrix converter applications (2013)
Journal Article
Empringham, L., De Lillo, L., & Shulz, M. (2013). Design challenges in the use of silicon carbide JFETs in matrix converter applications. IEEE Transactions on Power Electronics, 29(5), https://doi.org/10.1109/TPEL.2013.2290835

This paper investigates some of the challenges en¬countered during the implementation of a Silicon Carbide JFET matrix converter which has been designed to meet a specific power density of 20kW/litre with forced air cooling. After a brief introductio... Read More about Design challenges in the use of silicon carbide JFETs in matrix converter applications.