Control Design and Voltage Stability Analysis of a Droop-Controlled Electrical Power System for More Electric Aircraft

Gao, Fei; Bozhko, Serhiy; Costabeber, Alessando; Asher, Greg; Wheeler, Patrick

Abstract

This paper focuses on the analysis of a single DC bus multi-generator Electrical Power System (EPS) for future More Electric Aircrafts (MEA). Within such a single bus paradigm, the paper proposes a detailed control design procedure and provides a stability analysis based on the derivation of the output impedance of the source subsystem and input impedance of the load subsystem, including control dynamics. The single bus characteristic is analyzed and the stability properties of the EPS are investigated when supplying constant power loads. In addition, the paper highlights the impact on stability of the number of parallel sources and of the power sharing ratio. The theoretical analysis is instrumental in designing an optimally stable single DC bus EPS. The key findings are validated by experimental results.

• Journal Article Type: Article
• Acceptance Date: May 15, 2017
• Online Publication Date: Jun 2, 2017
• Publication Date: 2017-12
• Deposit Date: Aug 30, 2017
• Publicly Available Date: Aug 30, 2017
• Journal: IEEE Transactions on Industrial Electronics
• Print ISSN: 0278-0046
• Electronic ISSN: 1557-9948
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 64
• Issue: 12
• Pages: 9271-9281
• DOI: https://doi.org/10.1109/TIE.2017.2711552
• Keywords: More Electric Aircraft, Droop control, Single bus, DC power system, Multiple source, Constant power load, Voltage stability
• Public URL: https://nottingham-repository.worktribe.com/output/964423
• Publisher URL: http://ieeexplore.ieee.org/document/7938401/
• Additional Information: c2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.