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A Review on Weighting Factor Design of Finite Control Set Model Predictive Control Strategies for AC Electric Drives (2024)
Journal Article
Zerdali, E., Rivera, M., & Wheeler, P. (2024). A Review on Weighting Factor Design of Finite Control Set Model Predictive Control Strategies for AC Electric Drives. IEEE Transactions on Power Electronics, 39(8), 9967-9981. https://doi.org/10.1109/tpel.2024.3370550

Model predictive control has been widely applied to AC electric drives over the last decade. Despite the proposed solutions, researchers are still seeking to find more effective solutions for weighting factor design, parameter dependency, current/tor... Read More about A Review on Weighting Factor Design of Finite Control Set Model Predictive Control Strategies for AC Electric Drives.

A metaheuristic-based method for photovoltaic temperature computation under tropical conditions (2024)
Journal Article
Osorio, L., Moreno, M., Rivera, M., Tuninetti, V., Ruíz Chavarria, G., Duchêne, L., & Wheeler, P. (2024). A metaheuristic-based method for photovoltaic temperature computation under tropical conditions. Solar Energy, 271, Article 112414. https://doi.org/10.1016/j.solener.2024.112414

Tropical climates have favorable irradiation levels for the development of photovoltaic systems; however, high temperatures have a negative impact on the efficiency of solar cells. Since direct measurement of cell temperature is not common, mathemati... Read More about A metaheuristic-based method for photovoltaic temperature computation under tropical conditions.

Switched Reluctance Linear Motor Force Ripple Suppression Based on Fixed Frequency Implicit Generalized Predictive Self-Correction Controller (2024)
Journal Article
Liu, J., Chen, H., Wang, X., Wheeler, P., Fernão Pires, V., Martins, J., Musolino, A., Gorbounov, Y., & Torkaman, H. (2024). Switched Reluctance Linear Motor Force Ripple Suppression Based on Fixed Frequency Implicit Generalized Predictive Self-Correction Controller. IEEE Transactions on Energy Conversion, 39(3), 1763-1781. https://doi.org/10.1109/TEC.2024.3369867

An implicit generalized predictive self-correction controller (IGPC) is proposed in this paper to suppress the force ripple of switched reluctance linear motors (SRLMs). Due to its good robustness and rolling optimization features, the dynamic matrix... Read More about Switched Reluctance Linear Motor Force Ripple Suppression Based on Fixed Frequency Implicit Generalized Predictive Self-Correction Controller.

Parasitic Inductance Impact of a High-Turn-Ratio Half Bridge Active Clamped Converter for More-Electric Aircraft Applications (2024)
Presentation / Conference Contribution
Zhu, Y., Yang, T., Wang, Z., Yan, X., Bozhko, S., & Wheeler, P. (2024, February). Parasitic Inductance Impact of a High-Turn-Ratio Half Bridge Active Clamped Converter for More-Electric Aircraft Applications. Presented at 2024 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, USA

Within a More-Electric Aircraft (MEA) dc power distribution system, Half-Bridge-Active-Clamped (HBAC) converters can be used to control the power transfer between different dc buses, for example, between +/-270V to 28V dc buses. However, due to the r... Read More about Parasitic Inductance Impact of a High-Turn-Ratio Half Bridge Active Clamped Converter for More-Electric Aircraft Applications.

A Hybrid Multiresonances Suppression Method for Nonsynchronous LCL-Type Grid-Connected Inverter Clusters Under Weak Grid (2024)
Journal Article
Liu, J., Sun, X., Chen, Z., Chi, Y., Song, W., Zhu, Q., & Wheeler, P. (2024). A Hybrid Multiresonances Suppression Method for Nonsynchronous LCL-Type Grid-Connected Inverter Clusters Under Weak Grid. IEEE Transactions on Power Electronics, 39(5), 5386-5399. https://doi.org/10.1109/tpel.2024.3366191

Multiresonance phenomena occur in inverter clusters under weak grid, with more complex resonance characteristics. Traditional suppression methods are difficult to determine control parameters when considering dynamic resonance under the variation of... Read More about A Hybrid Multiresonances Suppression Method for Nonsynchronous LCL-Type Grid-Connected Inverter Clusters Under Weak Grid.

Design and Analysis of Reconfigurable Resonant Converter with Ultra Wide Output Voltage Range (2024)
Journal Article
Qazi, S., Venugopal, P., Watson, A. J., Wheeler, P., & Soeiro, T. B. (2024). Design and Analysis of Reconfigurable Resonant Converter with Ultra Wide Output Voltage Range. IEEE Transactions on Power Electronics, 39(5), 5750-5763. https://doi.org/10.1109/tpel.2024.3365391

In this article, a reconfigurable isolated dc/dc converter is proposed suitable for a wide output voltage range of 180–1500 V for efficient onshore charging in maritime applications. The proposed circuit concept can also fulfill the requirements of o... Read More about Design and Analysis of Reconfigurable Resonant Converter with Ultra Wide Output Voltage Range.

Research on Definition of Short-Circuit Region for Γ-source Circuit Breaker (2024)
Journal Article
Song, W., Wang, C., An, N., Han, Z., Xue, D., & Wheeler, P. (2024). Research on Definition of Short-Circuit Region for Γ-source Circuit Breaker. IEEE Transactions on Power Electronics, 39(5), 6271 - 6280. https://doi.org/10.1109/tpel.2024.3361254

This article proposes a method defining area of short-circuit and load step change for Γ-source circuit breaker through deriving the law between the variables of transformation ratio, coupling coefficient, load and the boundary resistance. First, the... Read More about Research on Definition of Short-Circuit Region for Γ-source Circuit Breaker.

Speed‐current single‐loop control of PMSM based on model‐assisted cascaded extended state observer and sliding mode control (2024)
Journal Article
Wang, M., Liu, Y., Wang, Q., Liao, Y., & Wheeler, P. (2024). Speed‐current single‐loop control of PMSM based on model‐assisted cascaded extended state observer and sliding mode control. International Journal of Circuit Theory and Applications, 52(7), 3558-3583. https://doi.org/10.1002/cta.3929

This paper proposes a novel speed‐current single‐loop speed regulation controller for permanent magnet synchronous motor (PMSM) based on model‐assisted cascaded extended state observer (ESO) and sliding mode control (SMC), aimed at simplifying the co... Read More about Speed‐current single‐loop control of PMSM based on model‐assisted cascaded extended state observer and sliding mode control.

Current-constraint Speed Regulation for PMSM Based on Port-controlled Hamiltonian Realization and Deep Deterministic Policy Gradient (2023)
Journal Article
Wang, M., Liu, Y., Wang, Q., & Wheeler, P. (2024). Current-constraint Speed Regulation for PMSM Based on Port-controlled Hamiltonian Realization and Deep Deterministic Policy Gradient. IEICE Electronics Express, 21(2), Article 20230516. https://doi.org/10.1587/elex.20.20230516

To ensure overcurrent protection, fast dynamic performance and good robustness, a novel speed regulation controller is proposed. The interconnection and damping assignment passivity-based control (IDA-PBC) of Port-controlled Hamiltonian (PCH) systems... Read More about Current-constraint Speed Regulation for PMSM Based on Port-controlled Hamiltonian Realization and Deep Deterministic Policy Gradient.

Extended Application of Improved D-D-Σ Current Control in Synchronous Inverter Cluster Considering N Times Equivalent Impedance (2023)
Journal Article
Ding, D., Liu, J., Song, W., & Wheeler, P. (2024). Extended Application of Improved D-D-Σ Current Control in Synchronous Inverter Cluster Considering N Times Equivalent Impedance. IEEE Transactions on Circuits and Systems I: Regular Papers, 71(3), 1346-1357. https://doi.org/10.1109/tcsi.2023.3336756

Photovoltaic (PV) power station is an inverter cluster with a single grid connected inverter as the unit. The resonance frequency shift caused by the grid impedance of the inverter cluster under weak grid is more serious. In this paper, Dual-Division... Read More about Extended Application of Improved D-D-Σ Current Control in Synchronous Inverter Cluster Considering N Times Equivalent Impedance.

Power-Converter-Enabled Microbrewery (2023)
Presentation / Conference Contribution
Muller, N., Navarrete, F., Reyes-Chamorro, L., Arroyave, F. V., Villatoro, J. M., Pérez, M., & Wheeler, P. (2023, December). Power-Converter-Enabled Microbrewery. Presented at 2023 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), Valdivia, Chile

The climate crisis has made cleaner industry processes a necessity. The beer industry relies almost exclusively on fossil fuels to handle their most energy-intensive processes: mashing and boiling. Moreover, most micro breweries use manual or hystere... Read More about Power-Converter-Enabled Microbrewery.

Artificial Intelligence Techniques for Enhancing the Performance of Controllers in Power Converter-Based Systems—An Overview (2023)
Journal Article
Gao, Y., Wang, S., Dragicevic, T., Wheeler, P., & Zanchetta, P. (2023). Artificial Intelligence Techniques for Enhancing the Performance of Controllers in Power Converter-Based Systems—An Overview. IEEE Open Journal of Industry Applications, 4, 366-375. https://doi.org/10.1109/OJIA.2023.3338534

The integration of artificial intelligence (AI) techniques in power converter-based systems has the potential to revolutionize the way these systems are optimized and controlled. With the rapid advancements in AI and machine learning technologies, th... Read More about Artificial Intelligence Techniques for Enhancing the Performance of Controllers in Power Converter-Based Systems—An Overview.

Power Flow Analysis of Advanced Power Generation Centre for More Electric Aircraft (2023)
Presentation / Conference Contribution
Bai, G., Bozhko, S., Yang, T., Wheeler, P., & Yeoh, S. S. (2023, November). Power Flow Analysis of Advanced Power Generation Centre for More Electric Aircraft. Presented at 2023 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), Chiang Mai, Thailand

The more-electric aircraft (MEA) has been seen as the most major trend in the aerospace industry. With the increase in electrified loads, there is the need to generate more electrical power on-board aircraft. Considering regional jet sized aircraft,... Read More about Power Flow Analysis of Advanced Power Generation Centre for More Electric Aircraft.

A Combination of a Feed-Forward and Selective Harmonic Elimination Method for Mitigation of Voltage Distortions in Single-Phase Stand-Alone Inverters Operating with Non-Linear Loads (2023)
Presentation / Conference Contribution
Golkhandan, N. H., Rivera, M., Wheeler, P., Acuna, P., Rothen, J., & Davoudi, A. (2023, November). A Combination of a Feed-Forward and Selective Harmonic Elimination Method for Mitigation of Voltage Distortions in Single-Phase Stand-Alone Inverters Operating with Non-Linear Loads. Presented at COBEP 2023 - 17th Brazilian Power Electronics Conference and SPEC 2023 - 8th IEEE Southern Power Electronics Conference, Proceedings, Florianopolis, Brazil

This paper presents a new method for voltage distortion elimination in single-phase stand-alone inverters. In fact, the cooperation of a selective harmonic elimination approach with a feed-forward method eliminates the harmonics more effectively. In... Read More about A Combination of a Feed-Forward and Selective Harmonic Elimination Method for Mitigation of Voltage Distortions in Single-Phase Stand-Alone Inverters Operating with Non-Linear Loads.

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.

Predictive Direct Speed Control of PMSM without Weighting Factors (2023)
Presentation / Conference Contribution
Zerdali, E., Rivera, M., Wheeler, P., & Toledo, S. (2023, November). Predictive Direct Speed Control of PMSM without Weighting Factors. Presented at COBEP 2023 - 17th Brazilian Power Electronics Conference and SPEC 2023 - 8th IEEE Southern Power Electronics Conference, Florianopolis, Brazil

Predictive direct speed control (PDSC) of electric drives eliminates the cascade control structure and provides faster speed and current/torque response, but suffers from the selection of weighting factors (WFs). This paper proposes a PDSC strategy w... Read More about Predictive Direct Speed Control of PMSM without Weighting Factors.

Lyapunov-Function Based Control Approach for Single-Phase Split Source Inverter (2023)
Presentation / Conference Contribution
Bagheri, F., Guler, N., Rivera, M., & Wheeler, P. (2023, November). Lyapunov-Function Based Control Approach for Single-Phase Split Source Inverter. Presented at 2023 IEEE 8th Southern Power Electronics Conference and 17th Brazilian Power Electronics Conference (SPEC/COBEP), Florianopolis, Brazil

The single-phase split source inverter (SSI), operating as an inverter while boosting the input dc voltage, is a single-stage topology. This paper introduces a novel control strategy utilizing a Lyapunov-function controller for a SSI. The proposed Ly... Read More about Lyapunov-Function Based Control Approach for Single-Phase Split Source Inverter.

Speed-Sensorless Predictive Direct Speed Control for PMSM Drives (2023)
Presentation / Conference Contribution
Zerdali, E., Rivera, M., Wheeler, P., & Toledo, S. (2023, November). Speed-Sensorless Predictive Direct Speed Control for PMSM Drives. Presented at COBEP 2023 - 17th Brazilian Power Electronics Conference and SPEC 2023 - 8th IEEE Southern Power Electronics Conference, Proceedings, Florianopolis, Brazil

Predictive direct speed control (PDSC) of electric motors makes the control of both electrical and mechanical systems possible over a single control law by eliminating the cascade control structure. Speed-sensorless control also reduces the cost of e... Read More about Speed-Sensorless Predictive Direct Speed Control for PMSM Drives.

Enhanced Dual–Vector Model Predictive Control for PMSM Drives Using the Optimal Vector Selection Principle (2023)
Journal Article
Huang, Z., Wei, Q., Xiao, X., Xia, Y., Rivera, M., & Wheeler, P. (2023). Enhanced Dual–Vector Model Predictive Control for PMSM Drives Using the Optimal Vector Selection Principle. Energies, 16(22), Article 7482. https://doi.org/10.3390/en16227482

The Dual–Vector model predictive control (DV–MPC) method can improve the steady–state control performance of motor drives compared to using the single–vector method in one switching cycle. However, this performance enhancement generally increases the... Read More about Enhanced Dual–Vector Model Predictive Control for PMSM Drives Using the Optimal Vector Selection Principle.

Encoderless Predictive Speed and Torque Control of an Induction Motor (2023)
Presentation / Conference Contribution
Zerdali, E., Rivera, M., Zanchetta, P., Wheeler, P., & Ristić, L. (2023, October). Encoderless Predictive Speed and Torque Control of an Induction Motor. Presented at 22nd International Symposium on POWER ELECTRONICS Ee2023, Novi Sad, Serbia

Recently, model predictive control (MPC) has gained popularity in the control of power converters and electric drives. In this paper, the advantages of two MPC strategies are combined, and a cascaded encoderless predictive speed and torque control (P... Read More about Encoderless Predictive Speed and Torque Control of an Induction Motor.