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Techno-economic and environmental analysis of community energy management for peak shaving (2021)
Journal Article
Cossutta, M., Pholboon, S., McKechnie, J., & Sumner, M. (2022). Techno-economic and environmental analysis of community energy management for peak shaving. Energy Conversion and Management, 251, Article 114900. https://doi.org/10.1016/j.enconman.2021.114900

Energy storage (ES) is seen as the key to unlocking the true potential of renewable generation as it potentially supports their integration into the grid by providing capability for services such balancing and frequency regulation. It also has the po... Read More about Techno-economic and environmental analysis of community energy management for peak shaving.

The Effect of Spread Spectrum Modulation for a Buck Converter Coupled with a Single Wired Communication Link (2021)
Presentation / Conference Contribution
Pena-Quintal, A., Niewiadomski, K., Muneeswaran, V., Greedy, S., Sumner, M., & Thomas, D. (2021). The Effect of Spread Spectrum Modulation for a Buck Converter Coupled with a Single Wired Communication Link. In EMC/SI/PI and EMC Europe Symposium, IEEE International Joint (445-450). https://doi.org/10.1109/EMC/SI/PI/EMCEurope52599.2021.9559276

This paper explores the effect of using a Spread Spectrum modulation technique with a Buck Converter on a communication cable coupled at the input voltage. The EMI created by the switching of the power converter generates damped oscillations on the d... Read More about The Effect of Spread Spectrum Modulation for a Buck Converter Coupled with a Single Wired Communication Link.

Distributed Predictive Control using Frequency and Voltage Soft Constraints in AC Microgrids including Economic Dispatch of Generation (2021)
Presentation / Conference Contribution
Navas-Fonseca, A., Burgos-Mellado, C., Gomez, J. S., Llanos, J., Espina, E., Saez, D., & Sumner, M. (2021). Distributed Predictive Control using Frequency and Voltage Soft Constraints in AC Microgrids including Economic Dispatch of Generation. . https://doi.org/10.1109/IECON48115.2021.9589500

This paper proposes a distributed predictive secondary controller to tackle together frequency and voltage regulation, realize the economic dispatch and reactive power sharing of generation units in isolated AC microgrids. Contrary to most approaches... Read More about Distributed Predictive Control using Frequency and Voltage Soft Constraints in AC Microgrids including Economic Dispatch of Generation.

Comparison of Frequency Transform Methods for Condition Monitoring of a DC-Link Capacitor (2021)
Presentation / Conference Contribution
Raqib, A., Jahanger, H., Sumner, M., Cox, T., Klumpner, C., Agha, I., …Lonsdale, P. (2021). Comparison of Frequency Transform Methods for Condition Monitoring of a DC-Link Capacitor. In 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020) (621 – 626). https://doi.org/10.1049/icp.2021.1169

Electrolytic capacitors continue to be used for the DC-link in motor drive systems due to their high specific capacitance. The degradation of electrolytic capacitors can lead to increased equivalent series resistances (ESR) and reduction in capacitan... Read More about Comparison of Frequency Transform Methods for Condition Monitoring of a DC-Link Capacitor.

A compensated impedance based ground fault locator for an unearthed power system (2021)
Presentation / Conference Contribution
Jahanger, H. K., Raqib, A., Thomas, D. W., & Sumner, M. (2021). A compensated impedance based ground fault locator for an unearthed power system. In 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020) (592 – 597). https://doi.org/10.1049/icp.2021.1001

Continuous operation of a power system during a ground fault can be achieved by employing either a High Resistance Grounded (HRG) power source or a floating power source. However, if a second ground fault occurs in the system it can cause significant... Read More about A compensated impedance based ground fault locator for an unearthed power system.

Distributed Predictive Secondary Control for Imbalance Sharing in AC Microgrids (2021)
Journal Article
Navas-Fonseca, A., Burgos-Mellado, C., Gomez, J. S., Donoso, F., Tarisciotti, L., Saez, D., …Sumner, M. (2022). Distributed Predictive Secondary Control for Imbalance Sharing in AC Microgrids. IEEE Transactions on Smart Grid, 13(1), 20-37. https://doi.org/10.1109/TSG.2021.3108677

This paper proposes a distributed predictive secondary control strategy to share imbalance in three-phase, three-wire isolated AC Microgrids. The control is based on a novel approach where the imbalance sharing among distributed generators is control... Read More about Distributed Predictive Secondary Control for Imbalance Sharing in AC Microgrids.

Distributed Predictive Control Strategy for Frequency Restoration of Microgrids Considering Optimal Dispatch (2021)
Journal Article
F., A. N., Gomez, J. S., Llanos, J., Rute, E., Saez, D., & Sumner, M. (2021). Distributed Predictive Control Strategy for Frequency Restoration of Microgrids Considering Optimal Dispatch. IEEE Transactions on Smart Grid, 12(4), 2748-2759. https://doi.org/10.1109/tsg.2021.3053092

Microgrids are the cornerstone for a new model of electrical generation based on renewable resources. Commonly microgrids are controlled with a centralised hierarchical structure, which is inherited from power systems. However, a time-scale separatio... Read More about Distributed Predictive Control Strategy for Frequency Restoration of Microgrids Considering Optimal Dispatch.

Distributed Predictive Secondary Control for Voltage Restoration and Economic Dispatch of Generation for DC Microgrids (2021)
Presentation / Conference Contribution
Navas-Fonseca, A., Burgos-Mellado, C., Espina, E., Rute, E., Gomez, J. S., Saez, D., & Sumner, M. (2021). Distributed Predictive Secondary Control for Voltage Restoration and Economic Dispatch of Generation for DC Microgrids. . https://doi.org/10.1109/ICDCM50975.2021.9504612

DC microgrids ease the integration of renewables and can be easily put together with plug-and-play operation. However, most control techniques in DC microgrids focus on voltage regulation without considering its economical operation. Furthermore, the... Read More about Distributed Predictive Secondary Control for Voltage Restoration and Economic Dispatch of Generation for DC Microgrids.

Distributed Control Strategy Based on a Consensus Algorithm for the Inter-cell and Inter-cluster Voltage Balancing of a Cascaded H-Bridge Based STATCOM (2020)
Presentation / Conference Contribution
Burgos-Mellado, C., Gutierrez, J., Pineda, C., Donoso, F., Watson, A., Sumner, M., …Mora, A. (2020). Distributed Control Strategy Based on a Consensus Algorithm for the Inter-cell and Inter-cluster Voltage Balancing of a Cascaded H-Bridge Based STATCOM. In 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020 (1-8). https://doi.org/10.1109/COMPEL49091.2020.9265758

© 2020 IEEE. Cascaded H-bridge converters are widely used in the implementation of medium voltage static synchronous compensators (STATCOMs). This is because of the advantages of relatively high-power density and the improved utilisation of low-volta... Read More about Distributed Control Strategy Based on a Consensus Algorithm for the Inter-cell and Inter-cluster Voltage Balancing of a Cascaded H-Bridge Based STATCOM.

Sensorless Speed Control of a Fault-Tolerant Five-Phase PMSM Drives (2020)
Journal Article
Saleh, K., & Sumner, M. (2020). Sensorless Speed Control of a Fault-Tolerant Five-Phase PMSM Drives. Electric Power Components and Systems, 48(9-10), 919-932. https://doi.org/10.1080/15325008.2020.1825555

This paper introduces a novel method to achieve sensorless speed control of a Five-phase Permanent Magnet Synchronous Motor (PMSM) drive in case of a single-phase open-circuit fault regardless which phase is open. The motor performance when an open c... Read More about Sensorless Speed Control of a Fault-Tolerant Five-Phase PMSM Drives.

Power Quality Analysis (0-2kHz) in DC/DC Converters under Steady State and Transient Conditions (2020)
Presentation / Conference Contribution
Khilnani, A. D., Niewiadomski, K., Rose, C., Sumner, M., Thomas, D. W. P., Ballukja, E., …Mariscotti, A. (2020). Power Quality Analysis (0-2kHz) in DC/DC Converters under Steady State and Transient Conditions. . https://doi.org/10.1109/emceurope48519.2020.9245758

The aim of this paper is to understand the effects of low frequency (0-2kHz) conducted emissions on power quality from a microgrid based DC/DC converter under steady state and transient loading conditions. The experimental data obtained from the lab... Read More about Power Quality Analysis (0-2kHz) in DC/DC Converters under Steady State and Transient Conditions.

Time-domain Assessment of Data Transmission Errors in Systems with Multiple DC/DC Converters (2020)
Presentation / Conference Contribution
Niewiadomski, K., Lezynski, P., Smolenski, R., Bojarski, J., Sumner, M., & Thomas, D. W. P. (2020). Time-domain Assessment of Data Transmission Errors in Systems with Multiple DC/DC Converters. . https://doi.org/10.1109/emceurope48519.2020.9245673

In this paper a statistical approach to quantify time-domain impact of common mode (CM) voltage induced on a communication system by the operation of several DC/DC converters is presented. The mathematical formulation of a problem of conducted electr... Read More about Time-domain Assessment of Data Transmission Errors in Systems with Multiple DC/DC Converters.

Data Links Modelling under Radiated EMI and its Impact on Sampling Errors in the Physical Layer (2020)
Presentation / Conference Contribution
Pena-Quintal, A. E., Basford, M. J., Niewiadomski, K., Greedy, S., Sumner, M., & Thomas, D. W. P. (2020). Data Links Modelling under Radiated EMI and its Impact on Sampling Errors in the Physical Layer. In Proceedings of 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE. https://doi.org/10.1109/emceurope48519.2020.9245670

This paper deals with the effects of radiated EMI on serial communication links using software modelling with particular emphasis on the physical layer. The effect of EMI in data links is an important problem to solve in many harsh environments such... Read More about Data Links Modelling under Radiated EMI and its Impact on Sampling Errors in the Physical Layer.

An Open Source, FPGA-Based Bit Error Ratio Tester for Serial Communications (2020)
Presentation / Conference Contribution
Basford, M. J., Pena-Quintal, A. E., Greedy, S., Sumner, M., & Thomas, D. W. P. (2020). An Open Source, FPGA-Based Bit Error Ratio Tester for Serial Communications. In Proceedings of 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE. https://doi.org/10.1109/emceurope48519.2020.9245786

This paper discusses the design of a FPGA-based Bit Error Ratio (BER) measurement system in a serial communication link under electromagnetic emissions. The BER measurement is an important figure for the reliability of digital communication systems.... Read More about An Open Source, FPGA-Based Bit Error Ratio Tester for Serial Communications.

Single-phase consensus-based control for regulating voltage and sharing unbalanced currents in 3-wire isolated AC microgrids (2020)
Journal Article
Burgos-Mellado, C., Llanos, J., Espina, E., Saez, D., Cardenas, R., Sumner, M., & Watson, A. (2020). Single-phase consensus-based control for regulating voltage and sharing unbalanced currents in 3-wire isolated AC microgrids. IEEE Access, 8, 164882-164898. https://doi.org/10.1109/ACCESS.2020.3022488

A distributed control strategy is proposed to share unbalanced currents in three-phase threewire isolated AC Microgrids (MGs). It is based on a novel approach where, rather than analysing the MG as a three-phase system, it is analysed as three single... Read More about Single-phase consensus-based control for regulating voltage and sharing unbalanced currents in 3-wire isolated AC microgrids.

A 3D-space vector modulation-based sensorless speed control of a fault-tolerant PMSMs fed by 27-level inverter (2020)
Journal Article
Saleh, K., & Sumner, M. (2020). A 3D-space vector modulation-based sensorless speed control of a fault-tolerant PMSMs fed by 27-level inverter. International Journal of Electronics, 108(5), 1-21. https://doi.org/10.1080/00207217.2020.1793415

This paper exhibits a novel technique to obtain a sensorless control of a permanent magnet synchronous motor post an open-circuit fault condition to achieve a maximum reliability of the whole drive system. The contribution of this work can be express... Read More about A 3D-space vector modulation-based sensorless speed control of a fault-tolerant PMSMs fed by 27-level inverter.

Performance Assessment of an Energy Management System for a Home Microgrid with PV Generation (2020)
Journal Article
Elkazaz, M., Sumner, M., Pholboon, S., Davies, R., & Thomas, D. (2020). Performance Assessment of an Energy Management System for a Home Microgrid with PV Generation. Energies, 13(13), Article 3436. https://doi.org/10.3390/en13133436

Home energy management systems (HEMS) are a key technology for managing future electricity distribution systems as they can shift household electricity usage away from peak consumption times and can reduce the amount of local generation penetrating i... Read More about Performance Assessment of an Energy Management System for a Home Microgrid with PV Generation.

A hierarchical two-stage energy management for a home microgrid using model predictive and real-time controllers (2020)
Journal Article
Elkazaz, M., Sumner, M., Naghiyev, E., Pholboon, S., Davies, R., & Thomas, D. (2020). A hierarchical two-stage energy management for a home microgrid using model predictive and real-time controllers. Applied Energy, 269, Article 115118. https://doi.org/10.1016/j.apenergy.2020.115118

This paper presents a hierarchical two-layer home energy management system to reduce daily household energy costs and maximize photovoltaic self-consumption. The upper layer comprises a model predictive controller which optimizes household energy usa... Read More about A hierarchical two-stage energy management for a home microgrid using model predictive and real-time controllers.