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Design and Implementation of GaN-based Dual-Active-Bridge DC/DC Converters (2020)
Conference Proceeding
Guan, Q., Rubino, L., Wang, Z., & Bozhko, S. (2020). Design and Implementation of GaN-based Dual-Active-Bridge DC/DC Converters. . https://doi.org/10.1109/iecon43393.2020.9254710

This paper presents the design and implementation of multicellular isolated bidirectional dual-active-bridge (DAB) DC/DC converters which are the core equipment of the European CleanSkyII Project ASPIRE. Both the primary and the secondary H-bridge ci... Read More about Design and Implementation of GaN-based Dual-Active-Bridge DC/DC Converters.

Z-domain modeling of peak current mode control for full-bridge DC-DC buck converters (2020)
Journal Article
Wang, X., Huang, Q., Zhang, B., Chen, D., & Guan, Q. (2021). Z-domain modeling of peak current mode control for full-bridge DC-DC buck converters. Journal of Power Electronics, 21(1), 27–37. https://doi.org/10.1007/s43236-020-00157-w

Traditional local-averaged state-space modeling for peak current mode (PCM) controls fails to explain the subharmonic oscillation phenomenon when the spectrum is higher than half of the switching frequency. To address this problem, this paper present... Read More about Z-domain modeling of peak current mode control for full-bridge DC-DC buck converters.

Geometrical Visualization of Indirect Space Vector Modulation for Matrix Converters Operating with Abnormal Supplies (2019)
Journal Article
Guan, Q., Guan, Q., Wheeler, P., Simon, O., & Clare, J. (2019). Geometrical Visualization of Indirect Space Vector Modulation for Matrix Converters Operating with Abnormal Supplies. IET Power Electronics, 12(15), 4023-4033. https://doi.org/10.1049/iet-pel.2019.0406

Matrix Converters can be sensitive to abnormal supply conditions due to the absence of energy storage elements. This sensitivity can get worse when the Matrix Converters are modulated by a traditional Indirect Space Vector Modulation that assumes the... Read More about Geometrical Visualization of Indirect Space Vector Modulation for Matrix Converters Operating with Abnormal Supplies.

Control of DC-DC Converter for Interfacing Supercapcitors Energy storage to DC Micro Grids (2019)
Conference Proceeding
Mohamed, M. A. A., Guan, Q., & Rashed, M. (2019). Control of DC-DC Converter for Interfacing Supercapcitors Energy storage to DC Micro Grids. In 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC). https://doi.org/10.1109/ESARS-ITEC.2018.8607327

© 2018 IEEE. The DC/DC converter control presents non-minimum phase behaviour in boost mode as its control plant has a Right Hand Plane (RHP) zero. The RHP zero restricts the achievement of high dynamic performance and make the control design a chall... Read More about Control of DC-DC Converter for Interfacing Supercapcitors Energy storage to DC Micro Grids.

Phase-shift-modulation for a current-fed isolated DC-DC converter in more electric aircraft (2018)
Journal Article
Chen, L., Tarisciotti, L., Costabeber, A., Guan, Q., Wheeler, P., & Zanchetta, P. (2019). Phase-shift-modulation for a current-fed isolated DC-DC converter in more electric aircraft. IEEE Transactions on Power Electronics, 34(9), 8528-8543. https://doi.org/10.1109/tpel.2018.2889861

A Phase-Shift-Modulation (PSM) technique is proposed for an Active-Bridge-Active-Clamp (ABAC) topology. This topology is aimed for high power more-electric-aircraft applications. The proposed PSM has a complete switching harmonics cancellation on the... Read More about Phase-shift-modulation for a current-fed isolated DC-DC converter in more electric aircraft.

Common-mode voltage reduction for matrix converters using all valid switch states (2016)
Journal Article
Guan, Q., Wheeler, P., Guan, Q., & Yang, P. (2016). Common-mode voltage reduction for matrix converters using all valid switch states. IEEE Transactions on Power Electronics, 31(12), 8247-8259. https://doi.org/10.1109/TPEL.2016.2515645

This paper presents a new space vector modulation(SVM) strategy for matrix converters to reduce the common-mode voltage (CMV). The reduction is achieved by using the switch states that connect each input phase to a different output phase, or the swit... Read More about Common-mode voltage reduction for matrix converters using all valid switch states.