Comparative Study of Power Sharing Strategies for the DC Electrical Power System in the MEA 2015-01-2410
In this paper, the load sharing principles in dc-distribution electric power systems (EPS) for future more-electric aircraft (MEA) are investigated. The study is conducted using a potential MEA EPS architecture with multiple sources feeding into the main dc bus. Corresponding reduced-order EPS models are established. The influence of the cable impedance on the load sharing accuracy is analyzed and sharing error is quantized in mathematical equations. In addition, source/load impedance of the droop-controlled system has been derived leading to the discussion of the stability issues in multi-feed dc EPS under different droop control strategies. The influence of load sharing ratio on the EPS stability margins has been investigated. The theoretical findings were supported by time-domain simulations in Matlab/SimPower.
Citation: Gao, F., Bozhko, S., Asher, G., and Wheeler, P., "Comparative Study of Power Sharing Strategies for the DC Electrical Power System in the MEA," SAE Technical Paper 2015-01-2410, 2015, https://doi.org/10.4271/2015-01-2410. Download Citation
Author(s):
Fei Gao, Serhiy Bozhko, Greg Asher, Patrick Wheeler
Affiliated:
University of Nottingham
Pages: 13
Event:
SAE 2015 AeroTech Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Buses
Aircraft
Architecture
Cables
CAD, CAM, and CAE
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