论文信息 - A type of MSMA electro-hydraulic servo valve based on neural network inverse system control

A type of MSMA electro-hydraulic servo valve based on neural network inverse system control

A new electro-hydraulic servo valve based on magnetic shape memory alloys was proposed in this paper and complete structure of the valve is established. In addition, the open loop transfer function of the new servo valve is written. The proposed servo valve has ascendant performance compared with conventional ones because new materials are applied. In order to improve control performance, neural network inverse system is adopted to control the valve to solve the problem of high nonlinearity and uncertainty. Utilizing the SIMULINK module of MATLAB 7.0, we established the control diagram, and the simulation results show significant advantages compared with conventional control methods.

Zhang An-yu | Tu Fu-quan | Chen Kui-sheng | Ren Yin-mei

[1] Alison B. Flatau,et al. Structural magnetic strain model for magnetostrictive transducers , 2000 .

[2] Leonardo Riccardi,et al. A precise positioning actuator based on feedback-controlled magnetic shape memory alloys , 2012 .

[3] Wei Gao,et al. High precise control method for a new type of piezoelectric electro-hydraulic servo valve , 2007 .

[4] Tao Guo-bin. The Explores of the BP Neural Network Implement Based on Simulink , 2007 .

[5] Nie Bo-xu. Inverse System Method Applied in Electro-hydraulic Servo System , 2005 .

[6] Kari Ullakko,et al. BASIC PROPERTIES OF MAGNETIC SHAPE MEMORY ACTUATORS , 2002 .

[7] Wang Feng-xiang. Differential rotating actuator of magnetically controlled shape memory alloy , 2008 .

[8] Hyoung-Jong So,et al. Development of the pneumatic valve with bimorph type PZT actuator , 2006 .

[9] Xiaole Yang,et al. Electro-Hydraulic Servo System Control Technology Based on Fuzzy-Multi-PID , 2009, 2009 International Workshop on Intelligent Systems and Applications.