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Research on Indirect Adaptive Fuzzy Sliding Mode Tracking Control for Electro-Hydraulic Servo System

Yunfeng Liu

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Abstract

To improve the tracking control of electro-hydraulic servo system,an indirect adaptive fuzzy sliding mode control was put forward according to the principle of the sliding mode control and approximation capability of fuzzy system in this paper.An adaptive fuzzy system was adopted to replace system character.The control law was designed by sliding mode.A boundary layer adjacent to the sliding mode was introduced to alleviate the chattering brought by sliding mode switch control.The simulation results showed that the proposed approach was valid.

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What this paper is about

To improve the tracking control of electro-hydraulic servo system,an indirect adaptive fuzzy sliding mode control was put forward according to the principle of the sliding mode control and approximation capability of fuzzy system in this paper.An adaptive fuzzy system was adopted to replace system character.The control law was designed by sliding mode.A boundary layer adjacent to the sliding mode was introduced to alleviate the chattering brought by sliding mode switch control.The simulation results showed that the proposed approach was valid.

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Available abstract

To improve the tracking control of electro-hydraulic servo system,an indirect adaptive fuzzy sliding mode control was put forward according to the principle of the sliding mode control and approximation capability of fuzzy system in this paper.An adaptive fuzzy system was adopted to replace system character.The control law was designed by sliding mode.A boundary layer adjacent to the sliding mode was introduced to alleviate the chattering brought by sliding mode switch control.The simulation results showed that the proposed approach was valid.

Key concepts: Control theory (sociology), Sliding mode control, Servomechanism, Mode (computer interface), Fuzzy control system, Fuzzy logic, Servo, Variable structure control

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