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Hybrid active damping of LCL-filtered grid connected converter (2016)
Conference Proceeding
Ghanem, A., Rashed, M., Sumner, M., Elsayes, M., & Mansy, I. (2016). Hybrid active damping of LCL-filtered grid connected converter.

A method for hybrid active damping in power converters connected to a weak grid using an LCL filter is proposed. It uses feedback of the grid current and capacitor voltage and is derived as an equivalent to the capacitor current feedback active dampi... Read More about Hybrid active damping of LCL-filtered grid connected converter.

A modelling and simulation of a sensorless control of five-phase PMSM drives using multi-dimension space vector modulation (2016)
Journal Article
Saleh, K., & Sumner, M. (2016). A modelling and simulation of a sensorless control of five-phase PMSM drives using multi-dimension space vector modulation. TELKOMNIKA (Telecommunication, Computing, Electronics and Control), 14(4), https://doi.org/10.12928/TELKOMNIKA.v14i4.3996

This paper introduces a new method to track the saturation saliency for position measurement of a five-phase PMSM motor fed by a five-phase inverter through measuring the dynamic current response of the motor line currents due to the IGBT switching a... Read More about A modelling and simulation of a sensorless control of five-phase PMSM drives using multi-dimension space vector modulation.

Experimental evaluation of a CPT-based 4-leg active power compensator For distributed generation (2016)
Journal Article
Burgos-Mellado, C., Hernández-Carimán, C., Cardenas, R., Saez, D., Sumner, M., Costabeber, A., & Morales, H. (2017). Experimental evaluation of a CPT-based 4-leg active power compensator For distributed generation. IEEE Journal of Emerging and Selected Topics in Power Electronics, 5(2), 747-759. https://doi.org/10.1109/JESTPE.2016.2633064

Four-wire microgrids (MGs) and distribution systems are inherently unbalanced with the presence of negative and zero sequence components in voltages and currents. In small autonomous systems, the imbalance, in addition to the harmonic distortion prod... Read More about Experimental evaluation of a CPT-based 4-leg active power compensator For distributed generation.

High Ratio Bidirectional DC-DC Converter with a Synchronous Rectification H-Bridge for Hybrid Energy Sources Electric Vehicles (2016)
Journal Article
Zhang, Y., Gao, Y., Li, J., Sumner, M., Wang, P., & Zhou, L. (2016). High Ratio Bidirectional DC-DC Converter with a Synchronous Rectification H-Bridge for Hybrid Energy Sources Electric Vehicles. Journal of Power Electronics, 16(6), 2035-2044. https://doi.org/10.6113/JPE.2016.16.6.2035

In order to match the voltages between high voltage battery stacks and low voltage super-capacitors with a high conversion efficiency in hybrid energy sources electric vehicles (HESEVs), a high ratio bidirectional DC-DC converter with a synchronous r... Read More about High Ratio Bidirectional DC-DC Converter with a Synchronous Rectification H-Bridge for Hybrid Energy Sources Electric Vehicles.

A generalised model of electrical energy demand from small household appliances (2016)
Journal Article
Sancho-Tomás, A., Sumner, M., & Robinson, D. (2017). A generalised model of electrical energy demand from small household appliances. Energy and Buildings, 135, 350-366. https://doi.org/10.1016/j.enbuild.2016.10.044

Accurate forecasting of residential energy loads is highly influenced by the use of electrical appliances, which not only affect electrical energy use but also internal heat gains, which in turn affects thermal energy use. It is therefore important t... Read More about A generalised model of electrical energy demand from small household appliances.

Wide Input-Voltage Range Boost Three-Level DC–DC Converter With Quasi-Z Source for Fuel Cell Vehicles (2016)
Journal Article
Zhang, Y., Shi, J., Zhou, L., Li, J., Sumner, M., Wang, P., & Xia, C. (2017). Wide Input-Voltage Range Boost Three-Level DC–DC Converter With Quasi-Z Source for Fuel Cell Vehicles. IEEE Transactions on Power Electronics, 32(9), 6728-6738. https://doi.org/10.1109/TPEL.2016.2625327

© 1986-2012 IEEE. To solve the problem of the mismatched voltage levels between the dynamic lower voltage of the fuel cell stack and the required constant higher voltage (400 V) of the dc-link bus of the inverter for fuel cell vehicles, a boost three... Read More about Wide Input-Voltage Range Boost Three-Level DC–DC Converter With Quasi-Z Source for Fuel Cell Vehicles.

Development of a battery energy loss observer based on improved equivalent circuit modelling (2016)
Conference Proceeding
Fares, A., Klumpner, C., & Sumner, M. (2016). Development of a battery energy loss observer based on improved equivalent circuit modelling. . https://doi.org/10.1109/EPE.2016.7695602

This paper proposes a new energy loss observer for batteries that has a good accuracy and low complexity. This observer can provide a support for battery management systems (BMS) in terms of predicting battery energy loss and/or battery internal temp... Read More about Development of a battery energy loss observer based on improved equivalent circuit modelling.

Analysis of hybrid energy storage systems with DC link fault ride-through capability (2016)
Conference Proceeding
Georgious, R., Garcia, J., Garcia, P., & Sumner, M. (2016). Analysis of hybrid energy storage systems with DC link fault ride-through capability.

In this work, a Fault Ride-Through control scheme for a non-isolated power topology for Hybrid Energy Storage Systems in a DC microgrid is presented. The Hybrid System is created from a Lithium-Ion Battery and a Supercapacitor Module coordinated to a... Read More about Analysis of hybrid energy storage systems with DC link fault ride-through capability.

The effect of including power converter losses when modelling energy storage systems: a UK domestic study (2016)
Conference Proceeding
Panagiotou, K., Klumpner, C., & Sumner, M. (2016). The effect of including power converter losses when modelling energy storage systems: a UK domestic study.

Energy storage systems (ESS) are seen as an increasingly important technology for managing electrical distribution systems, and there is now much research into both the underlying technologies of these systems, and their “optimum” management especial... Read More about The effect of including power converter losses when modelling energy storage systems: a UK domestic study.

Sensorless control of fault tolerant PMSM drives in case of single-phase open circuit fault (2016)
Conference Proceeding
Saleh, K., & Sumner, M. (2016). Sensorless control of fault tolerant PMSM drives in case of single-phase open circuit fault.

This paper introduces a new method to track the saliency of a PMSM motor fed by a four-leg inverter in case of a single phase open circuit fault through measuring the dynamic current response of the motor line currents due the IGBT switching actions.... Read More about Sensorless control of fault tolerant PMSM drives in case of single-phase open circuit fault.

An islanding detection method for multi-DG systems based on high-frequency impedance estimation (2016)
Journal Article
Jia, K., Wei, H., Bi, T., Thomas, D. W., & Sumner, M. (2017). An islanding detection method for multi-DG systems based on high-frequency impedance estimation. IEEE Transactions on Sustainable Energy, 8(1), 74-83. https://doi.org/10.1109/TSTE.2016.2582846

Active islanding detection methods are generally employed for grid-connected inverter-based Distributed Generation (DG). However, there might be mutual influences and power quality issues caused by the disturbance signal when multiple inverters are i... Read More about An islanding detection method for multi-DG systems based on high-frequency impedance estimation.

Assessment of power quality in a microgrid with power electronic converters (2016)
Conference Proceeding
Ivry, P. M., Thomas, D. W., & Sumner, M. (2016). Assessment of power quality in a microgrid with power electronic converters.

This paper highlights the importance of assessing Power Quality (PQ) of microgrids using the recommended indices as stated in IEEE 519 and IEEE 1547 standards. It assesses the microgrid PQ by verifying if converter harmonics at the Point of Common Co... Read More about Assessment of power quality in a microgrid with power electronic converters.

High frequency impedance based fault location in distribution system with DGs (2016)
Journal Article
Jia, K., Bi, T., Ren, Z., Thomas, D. W., & Sumner, M. (2018). High frequency impedance based fault location in distribution system with DGs. IEEE Transactions on Smart Grid, 9(2), 807-816. https://doi.org/10.1109/TSG.2016.2566673

Distributed Generations (DGs) with power electronic devices and their control loops will cause distortion to the fault currents and result in errors for power frequency measurement based fault locations. This might jeopardize the distribution system... Read More about High frequency impedance based fault location in distribution system with DGs.

Evaluation of saliency tracking as an alternative for health monitoring in PMSM-drives under nonstationary conditions (2016)
Journal Article
Arellano-Padilla, J., Sumner, M., & Gerada, C. (2016). Evaluation of saliency tracking as an alternative for health monitoring in PMSM-drives under nonstationary conditions. IET Electric Power Applications, 10(4), 284-293. https://doi.org/10.1049/iet-epa.2015.0356

This paper evaluates the capability of saliency tracking to assess the health condition of permanent magnet synchronous motor (PMSM) drives operating under nonstationary conditions. The evaluated scheme is based on saliency tracking methods, which ar... Read More about Evaluation of saliency tracking as an alternative for health monitoring in PMSM-drives under nonstationary conditions.

Grid impedance estimation for islanding detection and adaptive control of converters (2016)
Conference Proceeding
Ghanem, A., Rashed, M., Sumner, M., El-Sayes, M., & Mansy, I. (2016). Grid impedance estimation for islanding detection and adaptive control of converters. . https://doi.org/10.1049/cp.2016.0205

The 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 impedance estima... Read More about Grid impedance estimation for islanding detection and adaptive control of converters.

A method for the suppression of fluctuations in the neutral-point potential of a three-level NPC inverter with a capacitor-voltage loop (2016)
Journal Article
Zhang, Y., Li, J., Li, X., Cao, Y., Sumner, M., & Xia, C. (2017). A method for the suppression of fluctuations in the neutral-point potential of a three-level NPC inverter with a capacitor-voltage loop. IEEE Transactions on Power Electronics, 32(1), 825-836. https://doi.org/10.1109/TPEL.2016.2536176

This paper investigates the problem of fluctuation of the neutral-point potential (NPP) in a three-level NPC inverter with a capacitor-voltage loop. The phase pulse width duty cycle disturbance PWM method is proposed to suppress the NPP fluctuation e... Read More about A method for the suppression of fluctuations in the neutral-point potential of a three-level NPC inverter with a capacitor-voltage loop.

Condition monitoring approach for permanent magnet synchronous motor drives based on the INFORM method (2016)
Journal Article
Arellano-Padilla, J., Sumner, M., & Gerada, C. (2016). Condition monitoring approach for permanent magnet synchronous motor drives based on the INFORM method. IET Electric Power Applications, 10(1), 54-62. https://doi.org/10.1049/iet-epa.2015.0148

This paper proposes a monitoring scheme based on saliency tracking to assess the health condition of PMSM drives operating under non stationary conditions. The evaluated scheme is based on the INFORM methodology, which is associated to the accurate s... Read More about Condition monitoring approach for permanent magnet synchronous motor drives based on the INFORM method.