Journal of System Simulation
Abstract
Abstract: Considering friction, modeling errors and other uncertainties of flight simulator servo system, a compensation strategy which combines model-based friction compensation with nonlinear disturbance observer compensation was proposed. First, the friction is modeled , whose parameters are identified by using genetic algorithm, and using the identified model to compensate. Second, using a nonlinear disturbance observer to estimate the modeling errors, friction less-compensation or over-compensation and other uncertainties, and using this observed value to compensate. The system adopted sliding backstepping controller to ensure the stabilization of the system. Finally, the fuzzy algorithm is adopted to adjust the switching gain of sliding mode to reduce the chattering of the system. The simulation results show the method can reduce the influence of friction and modeling errors and other uncertainties, weakened the chattering caused by sliding mode, improved the control precision and anti-interference of the system.
Recommended Citation
Liu, Huibo and Liu, Shanglei
(2019)
"Fuzzy Sliding Backstepping Mode Control for Flight Simulator Servo Based on Friction and Disturbance Compensation,"
Journal of System Simulation: Vol. 30:
Iss.
3, Article 53.
DOI: 10.16182/j.issn1004731x.joss.201803053
Available at:
https://dc-china-simulation.researchcommons.org/journal/vol30/iss3/53
First Page
1195
DOI Link
https://doi.org/10.16182/j.issn1004731x.joss.201803053
Last Page
1203
CLC
TP273
Recommended Citation
Liu Huibo, Liu Shanglei. Fuzzy Sliding Backstepping Mode Control for Flight Simulator Servo Based on Friction and Disturbance Compensation[J]. Journal of System Simulation, 2018, 30(3): 1195-1203.
DOI
10.16182/j.issn1004731x.joss.201803053
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