Dr ALAN WATSON's Outputs (34)

Analysis of conducted EMI for dual active bridge DC-DC converter in an electric traction application (2024)
Presentation / Conference Contribution
Adhena, H. H., Watson, A. J., Greedy, S., Moonen, N., & Leferink, F. (2024, June). Analysis of conducted EMI for dual active bridge DC-DC converter in an electric traction application. Presented at 13th International Conference on Power Electronics, Machines and Drives (PEMD 2024), Nottingham, UK

Dual active bridge (DAB) converters are commonly used in power conversion applications with switching devices that operate at high frequencies and high switching speeds. There can be current ringing (oscillation) both in the collector of the switchin... Read More about Analysis of conducted EMI for dual active bridge DC-DC converter in an electric traction application.

Optimized model predictive control with reduced switching states for neutral point clamped converters (2024)
Presentation / Conference Contribution
Kadhum, H. T., Khera, F., Xie, J., Marco, R., Watson, A. J., Zanchetta, P., & Wheeler, P. (2024, June). Optimized model predictive control with reduced switching states for neutral point clamped converters. Presented at 13th International Conference on Power Electronics, Machines and Drives (PEMD 2024), Nottingham, England

The implementation of multilevel converters, particularly the Neutral-Point Clamped (NPC) converter, has risen in modern power electronics owing to its ability to enhance power quality and voltage levels. Model Predictive Control (MPC) has emerged as... Read More about Optimized model predictive control with reduced switching states for neutral point clamped converters.

Low-Order Harmonic Mitigation for Inductive Wireless Power Transfer Using a Three-Phase Meander Coil Topology (2024)
Presentation / Conference Contribution
Briceño, P., Watson, A., Clare, J., Wheeler, P., Venugopal, P., & Soeiro, T. B. (2024, May). Low-Order Harmonic Mitigation for Inductive Wireless Power Transfer Using a Three-Phase Meander Coil Topology. Presented at 2024 IEEE Wireless Power Technology Conference and Expo (WPTCE), Kyoto, Japan

An improvement in the polyphase system for Wireless Power Transfer (WPT) is presented in this article to reduce the impact of the low-order harmonics in the air gap and on the induced voltage at the receiver pad. The proposed solution is studied usin... Read More about Low-Order Harmonic Mitigation for Inductive Wireless Power Transfer Using a Three-Phase Meander Coil Topology.

T-Type Based Cascaded H-bridge Converter Operating as a Split AC Battery and Modified State-of-Charging Hierarchical Balancing Method (2023)
Presentation / Conference Contribution
Eskandari, R., Venugopal, P., Watson, A., Wheeler, P., & Soeiro, T. B. (2023, November). T-Type Based Cascaded H-bridge Converter Operating as a Split AC Battery and Modified State-of-Charging Hierarchical Balancing Method. Presented at COBEP 2023 - 17th Brazilian Power Electronics Conference and SPEC 2023 - 8th IEEE Southern Power Electronics Conference, Proceedings, Florianopolis, Brazil

This work focuses on the so-called split batteries and proposes the T-type cascaded H-bridge circuit, as a suitable candidate for this application. Furthermore, state-of-charge (SoC) balancing between the battery modules is done by a hierarchical alg... Read More about T-Type Based Cascaded H-bridge Converter Operating as a Split AC Battery and Modified State-of-Charging Hierarchical Balancing Method.

Optimizing Wireless Power Transfer Efficiency in Cascaded H-Bridge Converter Through an Auxiliary Resonant Circuit Pole (2023)
Presentation / Conference Contribution
Briceño, P., Watson, A., Clare, J., Wheeler, P., Venugopal, P., & Soeiro, T. B. (2023, October). Optimizing Wireless Power Transfer Efficiency in Cascaded H-Bridge Converter Through an Auxiliary Resonant Circuit Pole. Presented at IECON 2023-49th Annual Conference of the IEEE Industrial Electronics Society, Singapore

The usage of an Auxiliary Resonant Commutated Pole (ARCP) circuit with an 11-level Cascaded H-Bridge (CHB) converter as an option for feeding high-power Wireless Power Transfer (WPT) track-pads in traction applications is proposed in this research. B... Read More about Optimizing Wireless Power Transfer Efficiency in Cascaded H-Bridge Converter Through an Auxiliary Resonant Circuit Pole.

Experimental analysis of mismatch in electro-thermal device parameter within parallel connected SiC MOSFETs: Considerations for multi-chip power module design (2023)
Presentation / Conference Contribution
Fayyaz, A., Li, Y., Evans, P., Watson, A., Wheeler, P., & Gerada, C. (2023, August). Experimental analysis of mismatch in electro-thermal device parameter within parallel connected SiC MOSFETs: Considerations for multi-chip power module design. Presented at WiPDA Asia 2023 - IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, Hsinchu, Taiwan

This paper aims to investigate the current imbalance within parallel connected common-source configuration of SiC Power MOSFET switches using double pulse transient operation. Mismatches in electro-thermal parameters e.g., threshold voltage (Vth and... Read More about Experimental analysis of mismatch in electro-thermal device parameter within parallel connected SiC MOSFETs: Considerations for multi-chip power module design.

Model Predictive Control of Modular Multilevel Converter with High Number of Submodules (2023)
Presentation / Conference Contribution
Kadhum, H., Alan, W., Saleh, B. M., Marco, R., Pericle, Z., & Patrick, W. (2023, September). Model Predictive Control of Modular Multilevel Converter with High Number of Submodules. Presented at 25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe, Aalborg, Denmark

This paper proposes a Level Model Predictive Control strategy combined with a pre-processing sorting algorithm to address the processing time issue of predictive control for Modular Multilevel Converters (MMCs) with hundreds of submodules. Five contr... Read More about Model Predictive Control of Modular Multilevel Converter with High Number of Submodules.

A modified Control Strategy of Neutral-Point Clamped Converter-Fed PMSM Drives with Engergy Storage Systems (2023)
Presentation / Conference Contribution
Xie, J., Suberski, M., Henneberg, D., Petzoldt, J., Li, Y., Watson, A., & De Novaes, Y. R. (2023, September). A modified Control Strategy of Neutral-Point Clamped Converter-Fed PMSM Drives with Engergy Storage Systems. Presented at 2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe), Aalborg, Denmark

This paper proposes a modified control strategy for three-phase three-level neutral point clamped (NPC) converter-fed Permanent Magnet Synchronous Motor (PMSM) drive in the application of Energy Storage Systems (ESS) using single-carrier modulation.... Read More about A modified Control Strategy of Neutral-Point Clamped Converter-Fed PMSM Drives with Engergy Storage Systems.

An Adaptive and Multifunctional DC-DC Converter for Onshore Ship Charging (2023)
Presentation / Conference Contribution
Qazi, S., Venugopal, P., Rietveld, G., Watson, A. J., Wheeler, P., & Soeiro, T. B. (2023, June). An Adaptive and Multifunctional DC-DC Converter for Onshore Ship Charging. Presented at 2023 IEEE Transportation Electrification Conference and Expo, ITEC 2023, Detroit, MI, USA

Maritime electrification is a critical upgrade to enable sustainable and environmentally friendly shipping. Therefore, in recent years, there has been a significant interest in the development of battery-based boats and ferries. A key element for the... Read More about An Adaptive and Multifunctional DC-DC Converter for Onshore Ship Charging.

A Class E-Based Multichannel Auxiliary Power Supply with Load Independent Zero-Voltage-Switching Operation (2022)
Presentation / Conference Contribution
Li, Y., Watson, A., Kaya, M., & Wheeler, P. (2022, October). A Class E-Based Multichannel Auxiliary Power Supply with Load Independent Zero-Voltage-Switching Operation. Presented at 2022 IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, USA

A high performance auxiliary power supply (APS) plays a crucial role in ensuring the reliability and safety of power converter systems. In this paper, a Class E-based multichannel APS, featured with simple circuit structure, zero-voltage-switching (Z... Read More about A Class E-Based Multichannel Auxiliary Power Supply with Load Independent Zero-Voltage-Switching Operation.

Trapezoidal operation of modular multilevel DC-DC converter for HVDC interconnections (2021)
Presentation / Conference Contribution
Saleh, B. M., Donoso Merlet, F., Costabeber, A., Watson, A. J., & Clare, J. C. (2021, October). Trapezoidal operation of modular multilevel DC-DC converter for HVDC interconnections. Presented at IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, Toronto, Ontario, Canada

High Voltage Direct Current (HVDC) grids are becoming a preferred option for the expansion of the traditional electrical networks as a result of their potential economic, technical and environmental benefits. Developing HVDC grids includes the linkin... Read More about Trapezoidal operation of modular multilevel DC-DC converter for HVDC interconnections.

A hybrid chain-link push-pull series connected (H-CL-P2SC) M2C with DC fault blocking capability (2021)
Presentation / Conference Contribution
Kaya, M., Costabeber, A., Watson, A. J., Tardelli, F., & Clare, J. C. (2020, December). A hybrid chain-link push-pull series connected (H-CL-P2SC) M2C with DC fault blocking capability. Presented at 9th IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES 2020), Jaipur, India

This paper introduces a hybrid chain-link push-pull series connected (H-CL-P2SC) modular multilevel converter for HVDC applications, especially for those considering a connection of off-shore wind farms to the grid. On the ac side, each converter pha... Read More about A hybrid chain-link push-pull series connected (H-CL-P2SC) M2C with DC fault blocking capability.

A Series Chain-Link Modular Multilevel DC-DC Converter For High Voltage and High Power Applications (2020)
Presentation / Conference Contribution
Saleh, B. M., Costabeber, A., Watson, A. J., & Clare, J. C. (2020, November). A Series Chain-Link Modular Multilevel DC-DC Converter For High Voltage and High Power Applications. Presented at 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark

© 2020 IEEE. In high voltage and high-power applications, many modular multilevel DC-DC converter topologies have been proposed for DC voltage scaling applications. In most of those proposed a three phase transformer is required. The construction of... Read More about A Series Chain-Link Modular Multilevel DC-DC Converter For High Voltage and High Power Applications.

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., Cardenas, R., & Mora, A. (2020, November). Distributed Control Strategy Based on a Consensus Algorithm for the Inter-cell and Inter-cluster Voltage Balancing of a Cascaded H-Bridge Based STATCOM. Presented at 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark

© 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.

Zero-Current Switching (ZCS) for a High Step Ratio Modular Multilevel dc-dc Converter with wide voltage range operation (2020)
Presentation / Conference Contribution
Pineda, C., Pereda, J., Burgos-Mellado, C., Watson, A., & Rojas, F. (2020, November). Zero-Current Switching (ZCS) for a High Step Ratio Modular Multilevel dc-dc Converter with wide voltage range operation. Presented at 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark

© 2020 IEEE. The rise of new dc technologies is pushing the development of highly efficient dc-dc converters, especially at high voltage and high step ratio. Modular multilevel converters (MMCs) are an attractive alternative because they can manage m... Read More about Zero-Current Switching (ZCS) for a High Step Ratio Modular Multilevel dc-dc Converter with wide voltage range operation.

Finite Control Set Model Predictive Control of Isolated DC/DC Modular Multilevel Converter (2020)
Presentation / Conference Contribution
Akbar, S. M., Hasan, A., Watson, A., Wheeler, P., & Odhano, S. (2020, October). Finite Control Set Model Predictive Control of Isolated DC/DC Modular Multilevel Converter. Presented at IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, Singapore, Singapore

© 2020 IEEE. Isolated DC/DC modular multilevel converters (MMC) consisting of two MMCs isolated by a transformer are one of the converter topologies being considered used for DC/DC conversion in HVDC transmission. Two level modulation can be used to... Read More about Finite Control Set Model Predictive Control of Isolated DC/DC Modular Multilevel Converter.

Three-Level Indirect Matrix Converter With Series Z-source Networks (2020)
Presentation / Conference Contribution
Effah, F. B., Wheeler, P., Okyere, P., Watson, A., Ojo, J., & Clare, J. (2020, August). Three-Level Indirect Matrix Converter With Series Z-source Networks. Presented at 2020 IEEE PES/IAS PowerAfrica, Nairobi, Kenya (online)

The concept of series Z-source network has been extended to a conventional indirect matrix converter in previous publications for raising the voltage gain to unity and beyond. In this paper, this idea is adapted and applied to a three-level indirect... Read More about Three-Level Indirect Matrix Converter With Series Z-source Networks.

A Parallel Connected Unfolding Bridge (PCUB) Multilevel Converter for HVDC Applications (2019)
Presentation / Conference Contribution
Hassan, Z., Costabeber, A., Tardelli, F., Watson, A., & Clare, J. (2019, October). A Parallel Connected Unfolding Bridge (PCUB) Multilevel Converter for HVDC Applications. Presented at 45th Annual Conference of the IEEE Industrial Electronics Society (IECON 2019 ), Lisbon, Portugal

© 2019 IEEE. Hybrid Voltage Source Converters (VSC), that combine the conventional three-level VSCs and Modular Multilevel Chain-Links (CLs), offer a promising solution for future HVDC stations, achieving reduced footprint with respect to the MMC whi... Read More about A Parallel Connected Unfolding Bridge (PCUB) Multilevel Converter for HVDC Applications.

A Nonintrusive IGBT Open-Circuit Fault and Current Sensor Fault Diagnosis Method for Grid-Tied Three-phase Three-Wire Inverter with Two Current Sensors (2019)
Presentation / Conference Contribution
Li, Z., Wheeler, P., Watson, A., Costabeber, A., Bai, Z., Zhang, X., Zhao, B., & Ma, H. (2019, September). A Nonintrusive IGBT Open-Circuit Fault and Current Sensor Fault Diagnosis Method for Grid-Tied Three-phase Three-Wire Inverter with Two Current Sensors. Presented at 2019 IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, USA

© 2019 IEEE. In some cases, only two current sensors are available in three-phase three-wire (3P3W) inverters. This occurs when one of three sensors is faulty, or the inverter is equipped with only two sensors to save cost. There has been no method a... Read More about A Nonintrusive IGBT Open-Circuit Fault and Current Sensor Fault Diagnosis Method for Grid-Tied Three-phase Three-Wire Inverter with Two Current Sensors.

A New Capacitor Voltage Balancing Method for Trapezoidal Operation of Modular Multilevel DC-DC Converters (2019)
Presentation / Conference Contribution
Saleh, B. M., Costabeber, A., Watson, A., Tardelli, F., & Clare, J. (2019, September). A New Capacitor Voltage Balancing Method for Trapezoidal Operation of Modular Multilevel DC-DC Converters. Presented at 2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe), Genova, Italy

© 2019 EPE Association. In this paper, a new submodule (SM) capacitor voltage balancing algorithm is proposed for the trapezoidal operation of a Modular Multilevel DC-DC converter (MMC-DC-DC) for HVDC/MVDC. Trapezoidal wave-shaping leads to SM switch... Read More about A New Capacitor Voltage Balancing Method for Trapezoidal Operation of Modular Multilevel DC-DC Converters.