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Single-Switch, Wide Voltage-Gain Range, Boost DC–DC Converter for Fuel Cell Vehicles (2017)
Journal Article
Zhang, Y., Zhou, L., Sumner, M., & Wang, P. (2018). Single-Switch, Wide Voltage-Gain Range, Boost DC–DC Converter for Fuel Cell Vehicles. IEEE Transactions on Vehicular Technology, 67(1), 134-145. https://doi.org/10.1109/TVT.2017.2772087

In order to match voltages between the fuel cell stacks and the DC link bus of fuel cell vehicles, a single-switch Boost DC-DC converter with diode-capacitor modules is proposed in this paper. The capacitors are charged in parallel and discharged in... Read More about Single-Switch, Wide Voltage-Gain Range, Boost DC–DC Converter for Fuel Cell Vehicles.

A common ground switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for EVs with hybrid energy sources (2017)
Journal Article
Zhang, Y., Liu, Q., Li, J., & Sumner, M. (2018). A common ground switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for EVs with hybrid energy sources. IEEE Transactions on Industrial Electronics, 65(6), 5188-5200. https://doi.org/10.1109/TIE.2017.2756603

A common ground switched-quasi-Z-source bidirectional DC-DC converter is proposed for electric vehicles (EVs) with hybrid energy sources. The proposed converter is based on the traditional two-level quasi-Z-source bidirectional DC-DC converter, chang... Read More about A common ground switched-quasi-Z-source bidirectional DC-DC converter with wide-voltage-gain range for EVs with hybrid energy sources.

A Wide Input-Voltage Range Quasi-Z-Source Boost DC–DC Converter With High-Voltage Gain for Fuel Cell Vehicles (2017)
Journal Article
Zhang, Y., Fu, C., Sumner, M., & Wang, P. (2018). A Wide Input-Voltage Range Quasi-Z-Source Boost DC–DC Converter With High-Voltage Gain for Fuel Cell Vehicles. IEEE Transactions on Industrial Electronics, 65(6), 5201-5212. https://doi.org/10.1109/TIE.2017.2745449

A quasi-Z-source Boost DC-DC converter which uses a switched-capacitor is proposed for fuel cell vehicles. The topology can obtain a high voltage gain with a wide input-voltage range, and requires only a low voltage stress across each of the componen... Read More about A Wide Input-Voltage Range Quasi-Z-Source Boost DC–DC Converter With High-Voltage Gain for Fuel Cell Vehicles.

Grid impedance estimation for islanding detection and adaptive control of converters (2017)
Journal Article
Ghanem, A., Rashed, M., Sumner, M., Elsayes, M. A., & Mansy, I. (2017). Grid impedance estimation for islanding detection and adaptive control of converters. IET Power Electronics, 10(11), 1279-1288. https://doi.org/10.1049/iet-pel.2016.0780

Power system (grid) impedance is time varying due to the changing structure of the power system configuration and it can have a considerable influence on the control and stability of grid connected converters. This paper presents an online grid imped... Read More about Grid impedance estimation for islanding detection and adaptive control of converters.

Fault detection for PMSM motor drive systems by monitoring inverter input currents (2017)
Journal Article
Li, J., Sumner, M., Zhang, H., & Arellano-Padilla, J. (2017). Fault detection for PMSM motor drive systems by monitoring inverter input currents. https://doi.org/10.23919/TEMS.2017.7961339

This paper has proposed a fault detecting method for DC supplied permanent magnet synchronize motor (PMSM) drive systems by monitoring the drive DC input current. This method is based on the fault signal propagation from the torque disturbance on the... Read More about Fault detection for PMSM motor drive systems by monitoring inverter input currents.

Interleaved switched-capacitor bidirectional DC-DC converter with wide voltage-gain range for energy storage systems (2017)
Journal Article
Zhang, Y., Gao, Y., Li, J., & Sumner, M. (in press). Interleaved switched-capacitor bidirectional DC-DC converter with wide voltage-gain range for energy storage systems. IEEE Transactions on Power Electronics, https://doi.org/10.1109/TPEL.2017.2719402

In this paper, an interleaved switched-capacitor bidirectional DC-DC converter with a high step-up/step-down voltage gain is proposed. The interleaved structure is adopted in the low-voltage side of this converter to reduce the ripple of the current... Read More about Interleaved switched-capacitor bidirectional DC-DC converter with wide voltage-gain range for energy storage systems.

Predicting harmonic distortion of multiple converters in a power system (2017)
Journal Article
Ivry, P. M., Oke, O. A., Thomas, D. W. P., & Sumner, M. (2017). Predicting harmonic distortion of multiple converters in a power system. Journal of Electrical and Computer Engineering, 2017, 1-10. https://doi.org/10.1155/2017/7621413

Various uncertainties arise in the operation and management of power systems containing Renewable Energy Sources (RES) that affect the systems power quality. These uncertainties may arise due to system parameter changes or design parameter choice. In... Read More about Predicting harmonic distortion of multiple converters in a power system.

Historical data based energy management in a microgrid with a hybrid energy storage system (2017)
Journal Article
Jia, K., Chen, Y., Bi, T., Lin, Y., Thomas, D. W., & Sumner, M. (2017). Historical data based energy management in a microgrid with a hybrid energy storage system. IEEE Transactions on Industrial Informatics, 13(5), 2597-2605. https://doi.org/10.1109/TII.2017.2700463

In a micro-grid, due to potential reverse output profiles of the Renewable Energy Source (RES) and the load, energy storage devices are employed to achieve high self-consumption of RES and to minimize power surplus flowing back into the main grid. Th... Read More about Historical data based energy management in a microgrid with a hybrid energy storage system.

Input-Parallel Output-Series DC-DC Boost Converter With a Wide Input Voltage Range, For Fuel Cell Vehicles (2017)
Journal Article
Wang, P., Zhou, L., Li, J., Sumner, M., & Zhang, Y. (2017). Input-Parallel Output-Series DC-DC Boost Converter With a Wide Input Voltage Range, For Fuel Cell Vehicles. IEEE Transactions on Vehicular Technology, 66(9), 7771-7781. https://doi.org/10.1109/tvt.2017.2688324

An input-parallel, output-series DC-DC Boost converter with a wide input voltage range is proposed in this paper. An interleaved structure is adopted in the input side of this converter to reduce input current ripple. Two capacitors are connected in... Read More about Input-Parallel Output-Series DC-DC Boost Converter With a Wide Input Voltage Range, For Fuel Cell Vehicles.

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.

Sensorless speed control of five-phase PMSM drives with low current distortion (2017)
Journal Article
Saleh, K., & Sumner, M. (in press). Sensorless speed control of five-phase PMSM drives with low current distortion. Electrical Engineering, https://doi.org/10.1007/s00202-017-0511-9

This paper introduces a design for a sensorless control of a five-phase PMSM drive working at low and zero speeds with low current distortion. The rotor position is obtained through tracking the saturation saliency by measuring the dynamic currents r... Read More about Sensorless speed control of five-phase PMSM drives with low current distortion.