Open AccessAdaptive fractional order sliding mode control for Boost converter in the Battery/Supercapacitor HESS
Author(s) -
Jianlin Wang,
Dianguo Xu,
Huan Zhou,
Tao Zhou
Publication year - 2018
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0196501
Subject(s) - control theory (sociology) , sliding mode control , robustness (evolution) , supercapacitor , state observer , lyapunov function , computer science , control (management) , physics , capacitance , nonlinear system , gene , biochemistry , chemistry , electrode , quantum mechanics , artificial intelligence
In this paper, an adaptive fractional order sliding mode control (AFSMC) scheme is designed for the current tracking control of the Boost-type converter in a Battery/Supercapacitor hybrid energy storage system (HESS). In order to stabilize the current, the adaptation rules based on state-observer and Lyapunov function are being designed. A fractional order sliding surface function is defined based on the tracking current error and adaptive rules. Furthermore, through fractional order analysis, the stability of the fractional order control system is proven, and the value of the fractional order (λ) is being investigated. In addition, the effectiveness of the proposed AFSMC strategy is being verified by numerical simulations. The advantages of good transient response and robustness to uncertainty are being indicated by this design, when compared with a conventional integer order sliding mode control system.