Outputs (55)

Accurate position tracking of optically trapped live cells (2014)
Journal Article
McAlinden, N., Glass, D. G., Millington, O. R., & Wright, A. J. (2014). Accurate position tracking of optically trapped live cells. Biomedical Optics Express, 5(4), https://doi.org/10.1364/BOE.5.001026

Optical trapping is a powerful tool in Life Science research and is becoming common place in many microscopy laboratories and facilities. There is a growing need to directly trap the cells of interest rather than introduce beads to the sample that ca... Read More about Accurate position tracking of optically trapped live cells.

Active DC voltage balancing PWM technique for high-power cascaded multilevel converters (2014)
Journal Article
Tarisciotti, L., Zanchetta, P., Watson, A. J., Bifaretti, S., Clare, J. C., & Wheeler, P. (2014). Active DC voltage balancing PWM technique for high-power cascaded multilevel converters. IEEE Transactions on Industrial Electronics, 61(11), https://doi.org/10.1109/TIE.2014.2308139

In this paper a dedicated PWM technique specifically designed for single-phase (or four wire three-phase) multilevel Cascaded H-Bridge Converters is presented. The aim of the proposed technique is to minimize the DC-Link voltage unbalance, independen... Read More about Active DC voltage balancing PWM technique for high-power cascaded multilevel converters.

Comparison of two three-phase pll systems for more electric aircraft (2014)
Journal Article
Bifaretti, S., Zanchetta, P., & Lavopa, E. (2014). Comparison of two three-phase pll systems for more electric aircraft. IEEE Transactions on Power Electronics, 29(12), https://doi.org/10.1109/TPEL.2014.2307003

The More Electric Aircraft power system is characterized by variable supply frequency, in general between 360Hz and 900Hz. All equipment on board the aircraft have to operate delivering high performance under this variable frequency condition. In par... Read More about Comparison of two three-phase pll systems for more electric aircraft.

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.

DC fault ride-through capability and STATCOM operation of a HVDC hybrid voltage source converter (2014)
Journal Article
Feldman, R., Farr, E., Watson, A. J., Clare, J. C., & Wheeler, P. (2014). DC fault ride-through capability and STATCOM operation of a HVDC hybrid voltage source converter. IET Generation, Transmission and Distribution, 8(1), https://doi.org/10.1049/iet-gtd.2012.0713

HVDC transmission systems are becoming increasingly popular when compared to conventional AC transmission methods. HVDC voltage source converters (VSC) can offer advantages over traditional HVDC current source converter topologies; as such, it is exp... Read More about DC fault ride-through capability and STATCOM operation of a HVDC hybrid voltage source converter.

Strategies to overcome photobleaching in algorithm-based adaptive optics for nonlinearin-vivoimaging (2014)
Journal Article
Müllenbroich, M. C., McGhee, E. J., Wright, A. J., Anderson, K. I., & Mathieson, K. (2014). Strategies to overcome photobleaching in algorithm-based adaptive optics for nonlinearin-vivoimaging. Journal of Biomedical Optics, 19(1), Article 016021. https://doi.org/10.1117/1.JBO.19.1.016021

We have developed a nonlinear adaptive optics microscope utilizing a deformable membrane mirror (DMM) and demonstrated its use in compensating for system- and sample-induced aberrations. The optimum shape of the DMM was determined with a random searc... Read More about Strategies to overcome photobleaching in algorithm-based adaptive optics for nonlinearin-vivoimaging.

Suitable Thicknesses of Base Metal and Interlayer, and Evolution of Phases for Ag/Sn/Ag Transient liquid-phase Joints Used for Power Die Attachment (2014)
Journal Article
Li, J., Agyakwa, P., & Johnson, C. (2014). Suitable Thicknesses of Base Metal and Interlayer, and Evolution of Phases for Ag/Sn/Ag Transient liquid-phase Joints Used for Power Die Attachment. Journal of Electronic Materials, 43(4), 983-995. https://doi.org/10.1007/s11664-013-2971-7

Real Si insulated gate bipolar transistors with conventional Ni/Ag metallization and dummy Si chips with thickened Ni/Ag metallization have both been bonded, at 250°C for 0 min, 40 min, and 640 min, to Ag foil electroplated with 2.7 μm and 6.8 μm thi... Read More about Suitable Thicknesses of Base Metal and Interlayer, and Evolution of Phases for Ag/Sn/Ag Transient liquid-phase Joints Used for Power Die Attachment.

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.

Modulated model predictive control for a 7-level cascaded h-bridge back-to-back converter (2014)
Journal Article
Tarisciotti, L., Zanchetta, P., Watson, A. J., Bifaretti, S., & Clare, J. C. (2014). Modulated model predictive control for a 7-level cascaded h-bridge back-to-back converter. IEEE Transactions on Industrial Electronics, 61(10), https://doi.org/10.1109/TIE.2014.2300056

Multilevel Converters are known to have many advantages for electricity network applications. In particular Cascaded H-Bridge Converters are attractive because of their inherent modularity and scalability. Predictive control for power converters is a... Read More about Modulated model predictive control for a 7-level cascaded h-bridge back-to-back converter.

Experimental and analytical performance evaluation of SiC power devices in the matrix converter (2014)
Journal Article
Safari, S., Castellazzi, A., & Wheeler, P. (2014). Experimental and analytical performance evaluation of SiC power devices in the matrix converter. IEEE Transactions on Power Electronics, 29(5), https://doi.org/10.1109/TPEL.2013.2289746

With the commercial availability of SiC power devices, their acceptance is expected grows in consideration to the excellent low switching loss, high temperature operation and high voltage rating capabilities of these devices. This paper presents the... Read More about Experimental and analytical performance evaluation of SiC power devices in the matrix converter.