An Improved Voltage Compensation Approach in A Droop-Controlled DC Power System for the More Electric Aircraft

Fei Gao, Serhiy Bozhko, Greg Asher, Pat Wheeler, Chintan Patel
2015 IEEE transactions on power electronics  
2015) An improved voltage compensation approach in a droopcontrolled DC power system for the more electric aircraft. IEEE Transactions on Power Electronics, 31 A note on versions: The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. For more
more » ... cription. For more information, please contact eprints@nottingham.ac.uk Abstract-This paper proposes an improved voltage regulation method in multi-source based DC electrical power system in the more electric aircraft. The proposed approach, which can be used in terrestrial DC microgrids as well, effectively improves the load sharing accuracy under high droop gain circumstance with consideration of cable impedance. Since no extra communication line and controllers are required, it is easily implemented and also increases the system modularity and reliability. By using the proposed approach the DC transmission losses can be reduced and system stability is not deteriorated for normal and fault scenarios. In this paper optimal droop gain settings are investigated and the selection of individual droop gains as well as the proportional power sharing ratio has been described. Experimental results validate the effectiveness of the proposed method. Index Terms-DC power system, droop control, load sharing, voltage deviation, transmission losses.
doi:10.1109/tpel.2015.2510285 fatcat:clifvwusuvdlhnfvnampglwqdu