A Stable and Robust DC Power System for More Electric Aircraft

Mirzaeva, Galina; Miller, Dmitry; Goodwin, Graham; Wheeler, Patrick

Abstract

More Electric Aircraft’ (MEA) is a trend for medium and long haul airliners, in which all functions except propulsion are powered by engine-driven electrical generators. Power systems for MEA are in the process of rapid development. Constant Power Loads (CPL) pose a big challenge for power system stability. This paper proposes a concept of a MEA power system with a common DC bus, where power sharing between generators is achieved without droop or explicit communication. The paper shows how a coordinated response can be achieved by multiple DC-DC converters under PI current control, based on the local current measurements only. It utilises advanced control concepts, including feedforward and multiple degrees-of-freedom design. The paper demonstrates stability of the proposed power system with respect to any load type, including CPL. The findings of the paper are validated by detailed simulations and preliminary experimental results.

Citation

Mirzaeva, G., Miller, D., Goodwin, G., & Wheeler, P. (2021). A Stable and Robust DC Power System for More Electric Aircraft. . https://doi.org/10.1109/ECCE47101.2021.9595813

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: 2021 IEEE Energy Conversion Congress and Exposition (ECCE)
• Start Date: Oct 10, 2021
• End Date: Oct 14, 2021
• Acceptance Date: May 1, 2021
• Online Publication Date: Nov 16, 2021
• Publication Date: Oct 10, 2021
• Deposit Date: Feb 14, 2022
• Publicly Available Date: Feb 14, 2022
• Publisher: Institute of Electrical and Electronics Engineers
• Pages: 5196-5201
• DOI: https://doi.org/10.1109/ECCE47101.2021.9595813
• Public URL: https://nottingham-repository.worktribe.com/output/7467202
• Publisher URL: https://ieeexplore.ieee.org/document/9595813
• Additional Information: © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted; component of this work in other works.