All Outputs (12)

An Unbalanced Capacitor Voltage Buck Converter With Wide Soft Switching Range (2023)
Journal Article
Chen, Q., Klumpner, C., & Ahmed, M. R. (2023). An Unbalanced Capacitor Voltage Buck Converter With Wide Soft Switching Range. IEEE Transactions on Industrial Electronics, https://doi.org/10.1109/tie.2023.3314856

DC–DC converters using soft switching technology have gained popularity in several industrial applications. Nevertheless, a wider soft switching range and a simpler structure are the holy grail for these converters. In this article, an innovative unb... Read More about An Unbalanced Capacitor Voltage Buck Converter With Wide Soft Switching Range.

Sliding Mode Input Current Control of the Synchronous DC-DC Buck Converter for Electro-Mechanical Actuator Emulation in More Electric Aircrafts (2022)
Journal Article
Salimi, M., Klumpner, C., & Bozhko, S. (2022). Sliding Mode Input Current Control of the Synchronous DC-DC Buck Converter for Electro-Mechanical Actuator Emulation in More Electric Aircrafts. Energies, 15(24), Article 9628. https://doi.org/10.3390/en15249628

The main challenges of the input current control in synchronous DC-DC buck converters are the nonlinear model of the system, changes of the operating point in a wide range, and the need to use an input LC filter for current smoothing, which may resul... Read More about Sliding Mode Input Current Control of the Synchronous DC-DC Buck Converter for Electro-Mechanical Actuator Emulation in More Electric Aircrafts.

A Novel Multiport DC-DC Converter for Enhancing the Design and Performance of Battery–Supercapacitor Hybrid Energy Storage Systems for Unmanned Aerial Vehicles (2022)
Journal Article
Fares, A. M., Klumpner, C., & Sumner, M. (2022). A Novel Multiport DC-DC Converter for Enhancing the Design and Performance of Battery–Supercapacitor Hybrid Energy Storage Systems for Unmanned Aerial Vehicles. Applied Sciences, 12(6), Article 2767. https://doi.org/10.3390/app12062767

This paper proposes an integrated multiport non-isolated DC–DC converter system for integrating battery–supercapacitor hybrid energy storage with photovoltaics for solar-powered unmanned aerial vehicles applications. Compared to the traditional topol... Read More about A Novel Multiport DC-DC Converter for Enhancing the Design and Performance of Battery–Supercapacitor Hybrid Energy Storage Systems for Unmanned Aerial Vehicles.

Development of a smart supercapacitor energy storage system for aircraft electric power systems (2021)
Journal Article
Fares, A. M., Kippke, M., Rashed, M., Klumpner, C., & Bozhko, S. (2021). Development of a smart supercapacitor energy storage system for aircraft electric power systems. Energies, 14(23), Article 8056. https://doi.org/10.3390/en14238056

This paper presents the development of a supercapacitor energy storage system (ESS) aimed to minimize weight, which is very important for aerospace applications, whilst integrating smart functionalities like voltage monitoring, equalization, and over... Read More about Development of a smart supercapacitor energy storage system for aircraft electric power systems.

Modeling and experimental evaluation of z-source modular multilevel converter using reduced inserted cells technique (2021)
Journal Article
Khera, F. A., Klumpner, C., & Wheeler, P. (2021). Modeling and experimental evaluation of z-source modular multilevel converter using reduced inserted cells technique. IEEE Access, 9, 133091-133101. https://doi.org/10.1109/ACCESS.2021.3115634

The integration of a Z-source network with a modular multilevel converter (MMC) to provide voltage step-up function is proposed in this paper. The proposed Z-source modular multilevel converter (ZS-MMC) uses a Z-source network connected between the D... Read More about Modeling and experimental evaluation of z-source modular multilevel converter using reduced inserted cells technique.

Experimental evaluation of an energy storage system for medium voltage distribution grids enabling solid?state substation functionality (2021)
Journal Article
Klumpner, C., Rashed, M., De, D., Patel, C., & Asher, G. (2021). Experimental evaluation of an energy storage system for medium voltage distribution grids enabling solid?state substation functionality. IET Smart Grid, 4(2), 190-201. https://doi.org/10.1049/stg2.12019

"Smart grids" is a new concept of managing the power transfer in modern grids that will rely not only on the on-line processing of a variety of consumption and generation power data but will also need new hardware to facilitate a flexible and efficie... Read More about Experimental evaluation of an energy storage system for medium voltage distribution grids enabling solid?state substation functionality.

Energy Storage System Selection for Optimal Fuel Consumption of Aircraft Hybrid Electric Taxiing Systems (2020)
Journal Article
Recalde, A., Lukic, M., Hebala, A., Giangrande, P., Klumpner, C., Nuzzo, S., …Galea, M. (2021). Energy Storage System Selection for Optimal Fuel Consumption of Aircraft Hybrid Electric Taxiing Systems. IEEE Transactions on Transportation Electrification, 7(3), 1870-1887. https://doi.org/10.1109/TTE.2020.3039759

IEEE Aircraft taxiing is conventionally performed using the main engines’ inefficient idle thrust. Therefore, in line with greener aviation, the electrification of taxiing is the most viable option to reduce emissions, noise, and fossil fuel consumpt... Read More about Energy Storage System Selection for Optimal Fuel Consumption of Aircraft Hybrid Electric Taxiing Systems.

Experimental Validation of a quasi Z-Source Modular Multilevel Converter with DC Fault Blocking Capability (2019)
Journal Article
Khera, F., Klumpner, C., & Wheeler, P. (2021). Experimental Validation of a quasi Z-Source Modular Multilevel Converter with DC Fault Blocking Capability. IEEE Journal of Emerging and Selected Topics in Power Electronics, 9(2), 1951-1965. https://doi.org/10.1109/jestpe.2019.2955859

This paper considers the design methodology and the modulation of the quasi Z-source modular multilevel converter (qZS-MMC) with half bridge sub-modules and evaluates its performance in voltage boosting mode for medium voltage applications. The qZS-M... Read More about Experimental Validation of a quasi Z-Source Modular Multilevel Converter with DC Fault Blocking Capability.

Optimising the structure of a cascaded modular battery system for enhancing the performance of battery packs (2019)
Journal Article
Fares, A. M., Klumpner, C., & Sumner, M. (2019). Optimising the structure of a cascaded modular battery system for enhancing the performance of battery packs. Journal of Engineering, 2019(17), 3862-3866. https://doi.org/10.1049/joe.2018.8228

The overall performance of battery packs may be affected by imbalances between the series connected cells which is more likely in packs with high number of cells needed to provide a high voltage as needed for example in electric vehicles. In this cas... Read More about Optimising the structure of a cascaded modular battery system for enhancing the performance of battery packs.

Design and evaluation of an energy storage system for helicopters (2019)
Journal Article
Klumpner, C., & Rashed, M. (2019). Design and evaluation of an energy storage system for helicopters. Journal of Engineering, 2019(17), 3665-3670. https://doi.org/10.1049/joe.2018.8231

This paper presents the design and evaluation of an energy storage system (ESS) for helicopters with the aim to recover the kinetic energy in the rotor available after landing and to be able to control the 270 V DC bus voltage during load disturbance... Read More about Design and evaluation of an energy storage system for helicopters.

Sizing guidelines for grid-connected decentralised energy storage systems: single house application (2019)
Journal Article
Panagiotou, K., Klumpner, C., & Sumner, M. (2019). Sizing guidelines for grid-connected decentralised energy storage systems: single house application. Journal of Engineering, 2019(17), 3802-3806. https://doi.org/10.1049/joe.2018.8155

Nowadays, the existing hierarchical, centrally controlled power grid faces new challenges due to the increase penetration of renewable sources, the need of implementing demand-side management and the 2020 and 2050 environmental targets. A promising c... Read More about Sizing guidelines for grid-connected decentralised energy storage systems: single house application.

New modulation scheme for bidirectional qZS modular multi-level converters (2019)
Journal Article
Khera, F. A., Klumpner, C., & Wheeler, P. W. (2019). New modulation scheme for bidirectional qZS modular multi-level converters. Journal of Engineering, 2019(17), 3836-3841. https://doi.org/10.1049/joe.2018.8020

This study proposes a dedicated modulation scheme for a bidirectional quasi-Z-source (qZS) modular multi-level converter. The operation principle and a suitable pulse-width modulation method are proposed. The relation between the modulation index and... Read More about New modulation scheme for bidirectional qZS modular multi-level converters.