Journal
NONLINEAR DYNAMICS
Volume 86, Issue 1, Pages 401-420Publisher
SPRINGER
DOI: 10.1007/s11071-016-2897-8
Keywords
Chaos suppression; Dynamic surface control (DSC); Fixed-time stability; High-order sliding mode control; Current source converter-based static synchronous compensator (CSC-STATCOM); Power system
Categories
Funding
- National Natural Science Foundation of China [51177117, 51307130]
- Creative Research Groups Fund of the National Natural Science Foundation of China [51221005]
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In this paper, a fixed-time dynamic surface high-order sliding mode control approach is presented for chaos suppression and voltage stabilization in three-bus power system via design of current source converter-based static synchronous compensator controller. The proposed control strategy constructs two high-order slidingmode surfaces to achieve control objective. By combining backstepping idea with dynamic surface control (DSC) technique, high-order sliding mode controller is designed and the inherent problem of explosion of complexity in backstepping design is avoided. Further, a new stability concept is introduced into DSC design to achieve semi-global uniform ultimate boundedness of the signals in high-order sliding mode system within finite time independent of initial condition. In addition, stability analysis is provided to show that the proposed control scheme can achieve semi-globally fixed-timely uniformly ultimately bounded stabilization. Finally, simulation results are given to demonstrate the effectiveness of the proposed control scheme and the superior performance over conventional DSC.
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