Professor MARK SUMNER's Outputs (142)

Transfer learning in very-short-term solar forecasting: Bridging single site data to diverse geographical applications (2024)
Journal Article
Zhang, L., Wilson, R., Sumner, M., & Wu, Y. (2025). Transfer learning in very-short-term solar forecasting: Bridging single site data to diverse geographical applications. Applied Energy, 377, Article 124353. https://doi.org/10.1016/j.apenergy.2024.124353

Over the past decade, the rapid growth of solar energy penetration has posed significant challenges for grid balancing and scheduling, heightening the need for accurate and efficient short-term solar forecasting. While deep learning models have shown... Read More about Transfer learning in very-short-term solar forecasting: Bridging single site data to diverse geographical applications.

Successive approximation based phase-locked loop (2024)
Presentation / Conference Contribution
Njoroge, E. M., Hidayatullah, N. A., Sumner, M., & You, M. (2024, June). Successive approximation based phase-locked loop. Presented at 13th International Conference on Power Electronics, Machines and Drives (PEMD 2024), Nottingham, UK

Most grid-connected converters are configured in grid following (GFL) mode where they are designed to follow the grid voltage and inject a current specific to the required power. GFL requires phase-locked loops (PLLs) to monitor the phase angle and a... Read More about Successive approximation based phase-locked loop.

Double-ended Fault Location Method with Reduced Measurements (2024)
Presentation / Conference Contribution
Jahanger, H., Robson, S., Haddad, M., & Sumner, M. (2023, July). Double-ended Fault Location Method with Reduced Measurements. Presented at Cardiff University Engineering Research Conference 2023, Cardiff, Wales

The double-ended impedance-based fault location Method (DEFLM) uses the wideband frequency content of the transient generated by the fault to determine the impedance from the point of measurement to the fault. This work evaluates the use of DEFLM in... Read More about Double-ended Fault Location Method with Reduced Measurements.

Extended Horizon Predictive Control for Software Defined Networked Microgrids (2024)
Preprint / Working Paper
Pérez Guzmán, R., Rivera, M., Araya, B., Gόmez, J. S., Salgueiro, Y., Restrepo, C., Wheeler, P., You, M., & Sumner, M. (2024). Extended Horizon Predictive Control for Software Defined Networked Microgrids

This paper presents a model-based predictive control implementation (FCS-MPC) with extended horizon prediction to address the resiliency problem and voltage/frequency deviations for hierarchical microgrids. The proposed framework integrates Software-... Read More about Extended Horizon Predictive Control for Software Defined Networked Microgrids.

Optimal Design of Single-Layer and Multi-Layer Air-Core Inductors Considering Uncertainty Factors (2023)
Journal Article
Wan, L., Khilnani, A. D., Wu, X., Liu, X., Pignari, S. A., Thomas, D. W., Sumner, M., & Grassi, F. (2023). Optimal Design of Single-Layer and Multi-Layer Air-Core Inductors Considering Uncertainty Factors. IEEE Access, 11, 134460 -134472. https://doi.org/10.1109/access.2023.3336572

Air-core inductors are key components in power converters and measurement equipment. To optimally design inductors, their self-resonant frequency (SRF) as a result of inherent stray capacitance should be accurately estimated. This paper presents opti... Read More about Optimal Design of Single-Layer and Multi-Layer Air-Core Inductors Considering Uncertainty Factors.

A Statistical Approach to Predict the Low Frequency Common Mode Current in Multi-Converter setups (2023)
Presentation / Conference Contribution
Ballukja, E., Niewiadomski, K., Thomas, D., Sumsurooah, S., Sumner, M., & Bojarski, J. (2023, July). A Statistical Approach to Predict the Low Frequency Common Mode Current in Multi-Converter setups. Presented at 2023 IEEE Symposium on Electromagnetic Compatibility and Signal/Power Integrity, EMC+SIPI 2023, Grand Rapids, USA

The aim of this paper is to explore a statistical approach to predict the distribution of the harmonics of common mode current in a setup consisting of N converters, knowing the common mode current for a single converter. To this end, we utilize Pear... Read More about A Statistical Approach to Predict the Low Frequency Common Mode Current in Multi-Converter setups.

Control of 7-phase permanent magnet synchronous motor drive post three failures (2023)
Journal Article
Saleh, K., & Sumner, M. (2023). Control of 7-phase permanent magnet synchronous motor drive post three failures. International Journal of Electrical and Computer Engineering, 13(5), 5006-5025. https://doi.org/10.11591/ijece.v13i5.pp5006-5025

The article is introducing a new control technique for the 7-phase permanent magnet synchronous motor (PMSM) drive to enhance its robustness against the failure of phases 'a' and 'c' in addition to the failure of the encoder occurring simultaneously.... Read More about Control of 7-phase permanent magnet synchronous motor drive post three failures.

Advanced multimodal fusion method for very short-term solar irradiance forecasting using sky images and meteorological data: A gate and transformer mechanism approach (2023)
Journal Article
Zhang, L., Wilson, R., Sumner, M., & Wu, Y. (2023). Advanced multimodal fusion method for very short-term solar irradiance forecasting using sky images and meteorological data: A gate and transformer mechanism approach. Renewable Energy, 216, Article 118952. https://doi.org/10.1016/j.renene.2023.118952

Cloud dynamics are the main factor influencing the intermittent variability of short-term solar irradiance, and therefore affect the solar farm output. Sky images have been widely used for short-term solar irradiance prediction with encouraging resul... Read More about Advanced multimodal fusion method for very short-term solar irradiance forecasting using sky images and meteorological data: A gate and transformer mechanism approach.

An investigation into the robustness of a double-ended wideband impedance-based fault location technique. (2023)
Journal Article
Jahanger, H. K., Thomas, D. W. P., & Sumner, M. (2023). An investigation into the robustness of a double-ended wideband impedance-based fault location technique. Scientific Reports, 13(1), Article 10001. https://doi.org/10.1038/s41598-023-36541-2

The double-ended impedance-based fault location technique (DEFLT) uses the wideband frequency content of the transient generated by the fault to determine the impedance from the point of measurement to the fault. This paper evaluates and develops the... Read More about An investigation into the robustness of a double-ended wideband impedance-based fault location technique..

Dynamic Analysis, Stability and Design of Grid Forming Converters With PI-Based Voltage Control in DC and 3-Phase AC Microgrids (2023)
Journal Article
Navarro-Rodríguez, Á., García, P., Cano, J. M., & Sumner, M. (2023). Dynamic Analysis, Stability and Design of Grid Forming Converters With PI-Based Voltage Control in DC and 3-Phase AC Microgrids. IEEE Transactions on Energy Conversion, 38(4), 2249-2262. https://doi.org/10.1109/TEC.2023.3280977

This paper analyzes the dynamic behavior of the voltage control loop based on proportional-integral regulators, commonly used for grid-forming converters in 3-phase AC and DC Microgrids and applications that involve a DC-link voltage control. The pap... Read More about Dynamic Analysis, Stability and Design of Grid Forming Converters With PI-Based Voltage Control in DC and 3-Phase AC Microgrids.

On Spread Spectrum for DC Grids: Low-Frequency Conducted EMI Mitigation and Signal Integrity Disruption in Serial Communication Links (2023)
Journal Article
Pena-Quintal, A., Sayed, W. E., Sumner, M., Ercan, S. U., Greedy, S., Thomas, D., & Smolenski, R. (2023). On Spread Spectrum for DC Grids: Low-Frequency Conducted EMI Mitigation and Signal Integrity Disruption in Serial Communication Links. IEEE Transactions on Electromagnetic Compatibility, 65(4), 1027-1036. https://doi.org/10.1109/TEMC.2023.3273111

This article addresses the effects on nearby communication systems when spread spectrum modulation techniques are used for a dc-dc power converter. These interactions can be found in modern smart grids and automotive power networks in which the combi... Read More about On Spread Spectrum for DC Grids: Low-Frequency Conducted EMI Mitigation and Signal Integrity Disruption in Serial Communication Links.

Multi-dimension SVPWM-based sensorless control of 7-phase PMSM drives (2023)
Journal Article
Saleh, K., & Sumner, M. (2023). Multi-dimension SVPWM-based sensorless control of 7-phase PMSM drives. Bulletin of Electrical Engineering and Informatics, 12(2), 689-703. https://doi.org/10.11591/eei.v12i2.4665

A new control technique for the 7-phase permanent magnet synchronous machine (PMSM) when a failure in the speed sensor is introduced. This will make the whole drive system more robust and at the same time reduce the cost. The speed and the position o... Read More about Multi-dimension SVPWM-based sensorless control of 7-phase PMSM drives.

Distributed predictive secondary control with soft constraints for optimal dispatch in hybrid AC/DC microgrids (2023)
Journal Article
Navas-Fonseca, A., Burgos-Mellado, C., Gómez, J. S., Espina, E., Llanos, J., Śaez, D., Sumner, M., & Olivares, D. E. (2023). Distributed predictive secondary control with soft constraints for optimal dispatch in hybrid AC/DC microgrids. IEEE Transactions on Smart Grid, 14(6), 4204-4218. https://doi.org/10.1109/tsg.2023.3261569

Hybrid AC/DC microgrids (H-MGs) are a prominent solution for integrating distributed generation and modern AC and DC loads. However, controlling these systems is challenging as multiple electrical variables need to be controlled and coordinated. To p... Read More about Distributed predictive secondary control with soft constraints for optimal dispatch in hybrid AC/DC microgrids.

Stochastic Approach to Modelling Emissions of Multiple Power Electronic Converters (2023)
Presentation / Conference Contribution
Ballukja, E., Aitbar, I., Niewiadomski, K., Thomas, D. W., Sumner, M., & Smolenski, R. (2023, January). Stochastic Approach to Modelling Emissions of Multiple Power Electronic Converters. Presented at 2023 IEEE 7th Global Electromagnetic Compatibility Conference (GEMCCON), Nusa Dua, Indonesia

The aim of this paper is to describe the effects of time delays (Δt) between the switching of several converters on the statistical quantification of the common mode current caused by a multiple converters set-up. To this end, the time delays are con... Read More about Stochastic Approach to Modelling Emissions of Multiple Power Electronic Converters.

Fundamental PWM Excitation Based Rotor Position Estimation for a Dual Three-Phase Permanent Magnet Synchronous Machine (2022)
Journal Article
Chen, H., Gao, Q., Yang, T., & Sumner, M. (2023). Fundamental PWM Excitation Based Rotor Position Estimation for a Dual Three-Phase Permanent Magnet Synchronous Machine. IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 4(2), 659-668. https://doi.org/10.1109/jestie.2022.3223880

Two rotor position estimation methods for a dual three-phase (DTP) permanent magnet synchronous machine (PMSM) are investigated in this paper, where the rotor position is estimated by exploiting the saliency of the motor through the phase current der... Read More about Fundamental PWM Excitation Based Rotor Position Estimation for a Dual Three-Phase Permanent Magnet Synchronous Machine.

Impact of Pseudo-Random Modulation on Measured Conducted EMI (2022)
Journal Article
Pena-Quintal, A., Loschi, H., Smolenski, R., Sumner, M., Thomas, D., Greedy, S., Lezynski, P., & Leferink, F. (2022). Impact of Pseudo-Random Modulation on Measured Conducted EMI. IEEE Electromagnetic Compatibility Magazine, 11(2), 84-92. https://doi.org/10.1109/memc.2022.9873829

This paper demonstrates that using conventional frequency scanning methods for the evaluation of conducted electromagnetic interference generated by DC/DC converters can give misleading results when pseudo-random modulation is used as part of the con... Read More about Impact of Pseudo-Random Modulation on Measured Conducted EMI.

EMI Spectral Aggregation of Modulation Schemes in a lab-based DC Microgrid (2022)
Presentation / Conference Contribution
Pena-Quintal, A., Khilnani, A., Sandrolini, L., Sumner, M., Thomas, D., & Greedy, S. (2022, August). EMI Spectral Aggregation of Modulation Schemes in a lab-based DC Microgrid. Presented at 2022 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (EMCSI), Spokane, WA, USA

DC Microgrid research has developed in the recent years following the increasing integration of power electronic based switching devices at the point of common coupling in DC grids. This has led to electromagnetic interference problems caused by the... Read More about EMI Spectral Aggregation of Modulation Schemes in a lab-based DC Microgrid.

Sensorless Control of a PMSM Drive Post an Open Circuit Failure Based on 3D-SVPWM Technique (2022)
Journal Article
Saleh, K., & Sumner, M. (2022). Sensorless Control of a PMSM Drive Post an Open Circuit Failure Based on 3D-SVPWM Technique. IEEJ Transactions on Electrical and Electronic Engineering, 17(7), 1072-1082. https://doi.org/10.1002/tee.23597

This paper presents a novel technique to maintain the PMSM Drive operation post the failure in one phase and the failure of the speed sensor occur simultaneously. The PMSM motor is driven by a fault-tolerant inverter. The use of the fault-tolerant in... Read More about Sensorless Control of a PMSM Drive Post an Open Circuit Failure Based on 3D-SVPWM Technique.

Sensorless control of five-phase PMSM drives post the failure in two phases (2022)
Journal Article
Saleh, K., & Sumner, M. (2022). Sensorless control of five-phase PMSM drives post the failure in two phases. Electrical Engineering, 104, 3073--3090. https://doi.org/10.1007/s00202-022-01534-3

This paper introduces a novel technique to maintain the operation of the five-phase permanent magnet synchronous motor post the failure in two phases of the motor and post the failure of the speed sensor occurs simultaneously. To achieve that, firstl... Read More about Sensorless control of five-phase PMSM drives post the failure in two phases.

Distributed Model-Based Predictive Secondary Control for Hybrid AC/DC Microgrids (2022)
Journal Article
Rute-Luengo, E., Navas-Fonseca, A., Gomez, J. S., Espina, E., Burgos-Mellado, C., Saez, D., Sumner, M., & Munoz-Carpintero, D. (2023). Distributed Model-Based Predictive Secondary Control for Hybrid AC/DC Microgrids. IEEE Journal of Emerging and Selected Topics in Power Electronics, 11(1), 627-642. https://doi.org/10.1109/JESTPE.2022.3157979

This paper presents a novel scheme based on distributed model-based predictive control for the secondary level control of hybrid AC/DC microgrids. Prediction models based on droop control and power transfer equations are proposed to characterize the... Read More about Distributed Model-Based Predictive Secondary Control for Hybrid AC/DC Microgrids.