Outputs (231)

A Leakage-Inductance-Tolerant Commutation Strategy for Isolated AC/AC Converters (2018)
Journal Article
Nasir, U., Costabeber, A., Rivera, M., Wheeler, P., & Clare, J. (2019). A Leakage-Inductance-Tolerant Commutation Strategy for Isolated AC/AC Converters. IEEE Journal of Emerging and Selected Topics in Power Electronics, 7(1), 467-479. https://doi.org/10.1109/jestpe.2018.2861326

© 2013 IEEE. This paper proposes a generalized commutation strategy suitable for matrix-based isolated ac/ac conversion stages in solid-state transformers for use whenever there is nonnegligible leakage inductance in the isolation transformer. The st... Read More about A Leakage-Inductance-Tolerant Commutation Strategy for Isolated AC/AC Converters.

Matrix converter open circuit fault behavior analysis and diagnosis with a model predictive control strategy (2018)
Journal Article
Zhang, J., Dan, H., Empringham, L., De Lillo, L., & Wheeler, P. (2018). Matrix converter open circuit fault behavior analysis and diagnosis with a model predictive control strategy. IEEE Journal of Emerging and Selected Topics in Power Electronics, 6(4), 1831-1839. https://doi.org/10.1109/jestpe.2018.2856460

A novel fast and reliable open circuit fault diagnosis strategy for a Matrix Converter with a Finite Control Set Model Predictive Control strategy is proposed in this paper. Current sensors are located ahead of the clamp circuit to measure the output... Read More about Matrix converter open circuit fault behavior analysis and diagnosis with a model predictive control strategy.

A New Voltage Doubler Based DC-DC 2LCm-Y Power Converter Topologies for High-Voltage/Low-Current Renewable Energy Applications (2018)
Presentation / Conference Contribution
Bhaskar, M. S., Padmanaban, S., Wheeler, P., Blaabjerg, F., & Siano, P. (2018, June). A New Voltage Doubler Based DC-DC 2LCm-Y Power Converter Topologies for High-Voltage/Low-Current Renewable Energy Applications. Presented at 2018 IEEE Transportation Electrification Conference and Expo (ITEC 2018), Long Beach, California

In this treatise, a new voltage doubler based DCDC 2LCm-Y power converter topologies are uttered for the high voltage/low-current renewable energy applications. L-Y, 2L-Y, 2LC-Y and 2LCm-Y power converter categories are recently proposed in the exist... Read More about A New Voltage Doubler Based DC-DC 2LCm-Y Power Converter Topologies for High-Voltage/Low-Current Renewable Energy Applications.

Current fed multipulse rectifier approach for unidirectional HVDC and MVDC applications (2018)
Journal Article
Lambert, G., Vieira Soares, M., Wheeler, P., Lobo Heldwein, M., & Romulo de Novaes, Y. (in press). Current fed multipulse rectifier approach for unidirectional HVDC and MVDC applications. IEEE Transactions on Power Electronics, https://doi.org/10.1109/TPEL.2018.2849927

Even though multipulse rectifiers are a long established and well-known technology, still their behavior is not fully described in the literature when they are fed by three-phase balanced sinusoidal currents sources. To address the aforementioned gap... Read More about Current fed multipulse rectifier approach for unidirectional HVDC and MVDC applications.

Modified modulation scheme for three‐level diode‐clamped matrix converter under unbalanced input conditions (2018)
Journal Article
Su, M., Zhao, Z., Dan, H., Peng, T., Sun, Y., Che, R., Zhang, F., Zhu, Q., & Wheeler, P. (2018). Modified modulation scheme for three‐level diode‐clamped matrix converter under unbalanced input conditions. IET Power Electronics, 11(8), 1425-1433. https://doi.org/10.1049/iet-pel.2017.0512

The three-level diode-clamped matrix converter topology has outstanding performance under ideal operating conditions. However, input disturbance can influence the waveforms at the output side of the converter due to the direct coupling between the in... Read More about Modified modulation scheme for three‐level diode‐clamped matrix converter under unbalanced input conditions.

Control of modular multilevel cascade converters for offshore wind energy generation and transmission (2018)
Presentation / Conference Contribution
Diaz, M., Rojas, F., Donoso, F., Cardenas, R., Espinoza, M., Mora, A., & Wheeler, P. (2018, April). Control of modular multilevel cascade converters for offshore wind energy generation and transmission. Presented at 2018 Thirteenth International Conference on Ecological Vehicles and Renewable Energies (EVER), Monte Carlo, Monaco

The trend of multimegawatt (Multi-MW) wind turbines, especially for offshore installations, has positioned Modular Multilevel Cascade Converters (MMCCs) as a promising solution for Wind Energy Conversion Systems (WECSs). Additionally, High Voltage Di... Read More about Control of modular multilevel cascade converters for offshore wind energy generation and transmission.

Vector control strategies to enable equal frequency operation of the modular multilevel matrix converter (2018)
Presentation / Conference Contribution
Diaz, M., Espinoza, M., Rojas, F., Wheeler, P., & Cardenas, R. (2018, April). Vector control strategies to enable equal frequency operation of the modular multilevel matrix converter. Presented at 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018), Liverpool, UK

The Modular Multilevel Matrix Converter (M3C) is an ac-to-ac converter suitable for high-power applications. The control of this converter is complex, mainly when the frequencies of the ac systems connected to the ports of the converter are close or... Read More about Vector control strategies to enable equal frequency operation of the modular multilevel matrix converter.

New modulation scheme for bidirectional quasi z-source modular multilevel converters (2018)
Presentation / Conference Contribution
Khera, F., Klumpner, C., & Wheeler, P. New modulation scheme for bidirectional quasi z-source modular multilevel converters. Presented at 9th International Conference on Power Electronics, Machines and Drives

This paper proposes a dedicated modulation scheme for a bidirectional quasi Z-source modular multilevel converter (BqZS-MMC). The operation principle and a suitable PWM method are proposed. The relation between the modulation index and shoot-through... Read More about New modulation scheme for bidirectional quasi z-source modular multilevel converters.

Flux control modulation for the dual active bridge DC/DC converter (2018)
Presentation / Conference Contribution
Fritz, N., Rashed, M., Bozhko, S., Cuomo, F., & Wheeler, P. (2018, April). Flux control modulation for the dual active bridge DC/DC converter. Paper presented at 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018)

This paper introduces a novel modulation technique for the single phase Dual Active Bridge (DAB) in which the switching frequency and transformer flux are modulated to achieve improved power transfer characteristics and reduced converter losses. By a... Read More about Flux control modulation for the dual active bridge DC/DC converter.

An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications (2018)
Presentation / Conference Contribution
Li, C., Yang, T., Lo Calzo, G., Bozhko, S., Gerada, C., & Wheeler, P. An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications. Presented at 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018)

Electrical starter/generator (ESG) system is one of the key innovations of more-electric aircraft initiative. The ESG cranks the engine and accelerates it up to self-sustained speed using electric energy (starter mode) and then runs as a generator to... Read More about An advanced modulation scheme emphasising neutral point ripple suppression using predictive control for three-level NPC converters in aircraft electric starter generator applications.