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New Control Strategy of an artillery electro-hydraulic servo system

Author: ZongYue
Tutor: ChenJiLin
School: Nanjing University of Technology and Engineering
Course: Mechanical Manufacturing and Automation
Keywords: Electro-hydraulic servo system GA-BP algorithm System Identification Neural Network Adaptive Control System Simulation
CLC: TP271.31
Type: Master's thesis
Year: 2009
Downloads: 175
Quote: 1
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Abstract


In this thesis an artillery electro-hydraulic servo system as the object of study , the use of static and dynamic adaptive control strategy based on neural network to achieve the required performance . Artillery electro-hydraulic servo system of nonlinear and time-varying , and therefore very difficult to establish the mathematical model meets the system requirements . Firstly, nonlinear problem for an artillery electro-hydraulic servo system , the use of the Matlab Simulink system SimHydraulics module , the establishment of a non-linear electro-hydraulic servo system model and the actual characteristics of the approximate system simulation . Then a detailed study the typical forward neural network (BP ) learning and training algorithm of the network , the slower speed for the BP network training algorithm and easy to fall into local minimum points less than the GA-BP algorithm training improved method . Then in the Simulink model built based on the analysis of the basic structure of the neural network identification , GA-BP network identification problem , and Simulink model input and output data of electro-hydraulic servo system , the non- line -based neural network sex positive model identification . This article uses the adaptive control has strong robustness , the neural network with self-learning function and good fault tolerance , an adaptive neural network control method to control artillery electro-hydraulic servo system . The neural network adaptive control algorithm and simulation studies . Simulation results show that the neural network - based adaptive controller has good control of electro-hydraulic servo system to achieve the design requirements .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > General Automation System > Fluid Systems > Hydraulic system
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