Dynamic analysis and Fuzzy control of Electrohydraulic actuator

• Main Authors: Tsang-Sen Lai, 賴滄森
• Other Authors: Shr-Ping Sung
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/90606646543504988602

碩士 === 國立臺灣海洋大學 === 輪機工程系 === 92 === Abstract It is quite common to know the dynamic behavior of electro-hydraulic systems under the traditional position PID control. The purpose of this thesis is to apply fuzzy control to electro-hydraulic systems and study and compare the results of the systems between the traditional PID control and the fuzzy control. Electro-hydraulic systems are rigid with pretty high natural frequency. Dynamic behavior of electro-hydraulic systems is highly nonlinear and responds fast with any change of inputs. Application of fuzzy theory to electro-hydraulic systems is based on the knowledge and understanding of the systems. To acquire the best behavior of electro-hydraulic systems relies on adjustments of the control parameters of fuzzy control. Noise is considered to match the application of such a system on merchant ship and results are analyzed and compared between PID control and fuzzy control. Keywords: Fuzzy logic controller, electro-hydraulic systems.