Adaptive fuzzy fault-tolerant control of static var compensator based on dynamic surface control technique

作者：Xu Yinyin; Tong Shaocheng^*; Li Yongming

来源：Nonlinear Dynamics, 2013, 73(3): 2013-2023.

DOI：10.1007/s11071-013-0919-3

• Adaptive fuzzy control
• Faults tolerant control
• Dynamic surface control
• Backstepping design
• Static var compensator

The adaptive fuzzy faults tolerant control problem is investigated for a single machine bus system with static var compensator (SVC). This design does not require that speed of the generator rotor and susceptance of the overall system are measured, and also does not require that the parameters of the controlled system are known accurately. The considered faults are modeled as both loss of effectiveness and lock-in-place. A fuzzy state observer is designed to estimate the speed of the generator rotor and susceptance, by combining the adaptive backstepping technique with a dynamic surface control (DSC) approach, a novel adaptive fuzzy output-feedback faults tolerant control approach is developed. It is proved that the proposed control approach can guarantee that all the signals in the closed-loop system are semiglobally uniformly ultimately bounded (SGUUB), and the angle of the generator rotor follows a desired value. Simulation results are presented to show the effectiveness of the approach.

• 出版日期2013-8
• 单位辽宁工业大学