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Robust Adaptive Control for Stochastic Discrete-Time Nonlinear Systems and Application to Gas Engine as an Electric Vehicle Extender
- Source :
- IEEE Access, Vol 8, Pp 156433-156441 (2020)
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- In this paper, the problem of adaptive control with disturbance attenuation is investigated for stochastic discrete-time nonlinear systems with Markovian jumping parameters and unknown system parameters. Using the proposed control law and the sufficient conditions, the closed-loop system achieved H∞ performance. As a practical example of the considered problem, an air-fuel ratio controller for a gas engine intended as an electric vehicle extender is designed based on the proposed adaptive disturbance attenuation control algorithm. The air-fuel ratio controller is validated via a numerical simulation under three working conditions. The results of the numerical simulation show that the air-fuel ratio can be regulated into a range around its desired value by the proposed adaptive disturbance attenuation controller and that the adaptive law can be tuned to a steady value. The control performance indices of the proposed adaptive disturbance attenuation controller are smaller than those of the open-loop controller, which means that the proposed adaptive disturbance attenuation controller achieves a greater control effect.
- Subjects :
- Stochastic robust adaptive control
0209 industrial biotechnology
Adaptive control
business.product_category
General Computer Science
Computer simulation
Computer science
020209 energy
General Engineering
Markovian switching
gas engine for electric vehicle extender
02 engineering and technology
Discrete time nonlinear systems
Nonlinear system
020901 industrial engineering & automation
air-fuel ratio
Control theory
Electric vehicle
0202 electrical engineering, electronic engineering, information engineering
Gas engine
General Materials Science
lcsh:Electrical engineering. Electronics. Nuclear engineering
business
lcsh:TK1-9971
Subjects
Details
- ISSN :
- 21693536
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- IEEE Access
- Accession number :
- edsair.doi.dedup.....184532513aff157442ccc5f6f03f4ce8