A simple high-performance current control strategy for V2G three-phase four-leg inverter with LCL filter

Tan, C., Chen, Q., Zhou, K. and Zhang, L. (2019) A simple high-performance current control strategy for V2G three-phase four-leg inverter with LCL filter. IEEE Transactions on Transportation Electrification, 5(3), pp. 695-701. (doi: 10.1109/TTE.2019.2936684)

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Electric vehicles (EVs) can behave as distributed energy storage devices for providing on-demand smart grid support service, that is an emerging Vehicle-to-Grid (V2G) technology. A high-performance and easy-implementation current control strategy for V2G Three-phase four-leg inverter with LCL filter is proposed. It consists of a deadbeat (DB) controller and a paralleled repetitive controller (RC). The DB controller is based on weighted average inductor current (WAIC) scheme, which simplifies the third-order LCL filter to be an equivalent 1st order L filter. The stability of the DB controlled inverter with the unmodelled system time delay is analyzed. DB controller is of very fast response and easy implementation, but is not immune to system time delay and various uncertainties. To overcome the disadvantages, a plug-in RC is added to reinforce the DB controller to remove harmonic distortion from the feed-in current in the presence of parameter uncertainties. A lab prototype of 10kW grid-connected three-phase four-leg inverter has been built up to validate the proposed current control strategy. The simulations and experiments are provided to demonstrate the validity of the proposed control strategy.

Item Type:Articles
Additional Information:This work was partially supported by the National Natural Science Foundation of China under Grant 61673305, 61673306 and the National Key Research and Development Program of China under Grant 2017YFB0103001.
Glasgow Author(s) Enlighten ID:Zhou, Dr Keliang
Authors: Tan, C., Chen, Q., Zhou, K., and Zhang, L.
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:IEEE Transactions on Transportation Electrification
ISSN (Online):2332-7782
Published Online:21 August 2019
Copyright Holders:Copyright © 2019 IEEE
First Published:First published in IEEE Transactions on Transportation Electrification 5(3): 695-701
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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