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JACIII Vol.21 No.3 pp. 387-396
doi: 10.20965/jaciii.2017.p0387
(2017)

Paper:

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Generalized Potential Function-Based Cooperative Current-Sharing Control for High-Power Parallel Charging Systems

Hongtao Liao, Jun Peng, Yanhui Zhou, Zhiwu Huang, and Feng Zhou

School of Information Science and Engineering, Central South University
Changsha 410075, China

Received:
July 5, 2016
Accepted:
November 19, 2016
Online released:
May 19, 2017
Published:
May 20, 2017
Creative Commons License
Keywords:
current-sharing, cooperative control, parallel charging
Abstract
In this paper, a new decentralized gradient-based cooperative control method is proposed to achieve current sharing for parallel chargers in energy storage-type light rail vehicle systems. By employing a generalized artificial potential function to characterize the interaction rule for subchargers, the current-sharing control problem is converted into an optimization problem. Based on the gradient of the potential function, a decentralized gradient cooperative control law is derived. A general saturation function is introduced in the proposed control to guarantee the boundedness of the control output. The stability of the closed-loop system under the proposed decentralized gradient control is proven with the aid of a Lyapunov function. Simulation results are provided to verify the feasibility and validity of the proposed distributed current-sharing control method.
Cite this article as:
H. Liao, J. Peng, Y. Zhou, Z. Huang, and F. Zhou, “Generalized Potential Function-Based Cooperative Current-Sharing Control for High-Power Parallel Charging Systems,” J. Adv. Comput. Intell. Intell. Inform., Vol.21 No.3, pp. 387-396, 2017.
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