All Outputs (25)

Per-phase controller for medium voltage full-bridge modular multilevel converters (2017)
Presentation / Conference Contribution
Noori, A., Costabeber, A., Sumner, M., & Thomas, D. (2017). Per-phase controller for medium voltage full-bridge modular multilevel converters. In International Conference on Resilience of Transmission and Distribution Networks (RTDN 2017). https://doi.org/10.1049/cp.2017.0331

This work proposes a per-phase control architecture for a fullbridge modular multilevel converter (FB-MMC) intended for medium voltage applications, such as MVDC multi-terminal distribution networks in off-shore wind farms or MVDC networks in industr... Read More about Per-phase controller for medium voltage full-bridge modular multilevel converters.

Fast fault location scheme for distribution systems based on fault transients (2017)
Presentation / Conference Contribution
Aboshady, F., Thomas, D. W., & Sumner, M. (2017). Fast fault location scheme for distribution systems based on fault transients. In IET International Conference on Resilience of Transmission and Distribution Networks (RTDN 2017) (1-6). https://doi.org/10.1049/cp.2017.0327

This paper presents a combined double-end and single-end fault locator for distribution systems. The technique lies under the impedance based category and uses the fault generated high frequency components to locate the faults. The combination of dou... Read More about Fast fault location scheme for distribution systems based on fault transients.

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.

Predictive frequency-based sequence estimator for control of grid-tied converters under highly distorted conditions (2017)
Presentation / Conference Contribution
Garcia, P., Blanco, C., Navarro-Rodríguez, Á., & Sumner, M. (2017). Predictive frequency-based sequence estimator for control of grid-tied converters under highly distorted conditions. In 2017 IEEE Energy Conversion Congress and Exposition (ECCE) (2940-2947). https://doi.org/10.1109/ECCE.2017.8096542

This paper proposes a novel frequency-based predictive sequence extractor that allows to isolate the harmonic components of both voltages and currents needed for the control of grid-tied converters. The proposed method is based on a modification of t... Read More about Predictive frequency-based sequence estimator for control of grid-tied converters under highly distorted conditions.

Design recommendations for energy systems: a UK energy community study (2017)
Presentation / Conference Contribution
Panagiotou, K., Klumpner, C., Sumner, M., & Wheeler, P. (in press). Design recommendations for energy systems: a UK energy community study.

One of the key elements towards a decentralised energy sector is the consumers’ choice and participation, as the concept of energy prosumer is gaining more and more ground and energy community projects are spouting across UK. In order for the upcomin... Read More about Design recommendations for energy systems: a UK energy community study.

Adaptive power flow control for reducing peak demand and maximizing renewable energy usage (2017)
Presentation / Conference Contribution
Pholboon, S., Sumner, M., & Kounnos, P. (in press). Adaptive power flow control for reducing peak demand and maximizing renewable energy usage.

The increase in penetration of renewable energy sources, such as solar or wind, and high peak load demand can cause grid network security issues. The incorporation of demand side management and energy storage devices can provide a solution to these p... Read More about Adaptive power flow control for reducing peak demand and maximizing renewable energy usage.

Combining fault location estimates for a multi-tapped distribution line (2017)
Presentation / Conference Contribution
Jahanger, H., Sumner, M., & Thomas, D. W. (2017). Combining fault location estimates for a multi-tapped distribution line.

Multi-tapped lines are common in integrated power systems and microgrids which supply variable loads between the main source and the main load. Adopting a cost effective and efficient method for fault location is important for fast power recovery and... Read More about Combining fault location estimates for a multi-tapped distribution line.

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.

Limits, stability and disturbance rejection analysis of voltage control loop strategies for grid forming converters in DC and AC microgrids with high penetration of constant power loads (2017)
Presentation / Conference Contribution
Navarro-Rodríguez, Á., Garcia, P., Cano, J., & Sumner, M. (2017). Limits, stability and disturbance rejection analysis of voltage control loop strategies for grid forming converters in DC and AC microgrids with high penetration of constant power loads.

This paper extensively analyzes the operation limits, system stability and disturbance rejection capability
of the voltage control loops used in master-slave AC and DC Microgrids (MGs). Two different control schemes are studied analytically, simulat... Read More about Limits, stability and disturbance rejection analysis of voltage control loop strategies for grid forming converters in DC and AC microgrids with high penetration of constant power loads.

EMC-oriented multi-conductor equivalent circuit cable models for spice, including transfer impedance coupling and incident field excitation (2017)
Presentation / Conference Contribution
Smartt, C., Basford, M., Greedy, S., Thomas, D., & Sumner, M. (2017). EMC-oriented multi-conductor equivalent circuit cable models for spice, including transfer impedance coupling and incident field excitation. In Proceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications (1283-1287). https://doi.org/10.1109/ICEAA.2017.8065507

This paper describes the development and application of sophisticated multi-conductor cable bundle models for Spice simulation. The cable models developed include frequency dependent parameters, transfer impedance coupling and incident plane wave exc... Read More about EMC-oriented multi-conductor equivalent circuit cable models for spice, including transfer impedance coupling and incident field excitation.

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.

A double end fault location technique for distribution systems based on fault-generated transients (2017)
Presentation / Conference Contribution
Aboshady, F., Sumner, M., & Thomas, D. W. (2017). A double end fault location technique for distribution systems based on fault-generated transients.

This paper presents a fault location technique for distribution systems. It is a two end impedance based technique that uses the fault generated transients to estimate the fault distance over a broad range of frequencies. Then, curve fitting is appli... Read More about A double end fault location technique for distribution systems based on fault-generated transients.

Investigating the benefits and limitations of cascaded converter topologies used in modular battery systems (2017)
Presentation / Conference Contribution
Fares, A., Klumpner, C., & Sumner, M. (2017). Investigating the benefits and limitations of cascaded converter topologies used in modular battery systems. In 2017 IEEE International Symposium on Industrial Electronics (ISIE) (2123-2130). https://doi.org/10.1109/ISIE.2017.8001586

The Performance of battery packs is highly affected by imbalances between the series connected cells that provide the required string voltage. A modular battery implementation based on cascaded converters can have advantages over traditional centrali... Read More about Investigating the benefits and limitations of cascaded converter topologies used in modular battery systems.

Being a member of an energy community: Assessing the financial benefits for end-users and management authority (2017)
Presentation / Conference Contribution
Panagiotou, K., Klumpner, C., & Sumner, M. (2017). Being a member of an energy community: Assessing the financial benefits for end-users and management authority. In 2017 IEEE 26th International Symposium on Industrial Electronics (ISIE) (957-963). https://doi.org/10.1109/ISIE.2017.8001375

Since 2011, in the context of sustainable development, UK government has been encouraging individuals to work as groups, and now, more than 5,000 community led projects are sprouted across the country, since more than 50% of the UK citizens had expre... Read More about Being a member of an energy community: Assessing the financial benefits for end-users and management authority.

A system design for distributed energy generation in low temperature district heating (LTDH) networks (2017)
Presentation / Conference Contribution
Jones, S., Gillott, M. C., Boukhanouf, R., Walker, G. S., Tunzi, M., Tetlow, D., …Sumner, M. (2017). A system design for distributed energy generation in low temperature district heating (LTDH) networks.

Project SCENIC (Smart Controlled Energy Networks Integrated in Communities) involves connecting properties at the University of Nottingham’s Creative Energy Homes test site in a community scale, integrated heat and power network. Controls will be dev... Read More about A system design for distributed energy generation in low temperature district heating (LTDH) networks.

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.

Realising robust low speed sensorless PMSM control using current derivatives obtained from standard current sensors (2017)
Presentation / Conference Contribution
Hind, D., Li, C., Sumner, M., & Gerada, C. (2017). Realising robust low speed sensorless PMSM control using current derivatives obtained from standard current sensors.

This paper describes the implementation of a simple, robust and cost-effective sensorless control technique for PMSM machines. The method uses stator current derivative measurements made in response to certain PWM vectors. In this work the derivative... Read More about Realising robust low speed sensorless PMSM control using current derivatives obtained from standard current sensors.