Fuzzy prediction and compensation designed for the output of motor gear

• Main Authors: Chien-Huang Jung, 榮建煌
• Other Authors: Kuo-Yang Tu
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/96361748226143206538

碩士 === 國立高雄第一科技大學 === 系統資訊與控制研究所 === 98 === The backlash of a gear system is a big control problem in industrial applications. In this thesis, a PI controller compensated by a fuzzy Logic controller is proposed. The unit-step response of the PI controller is engaged to des- ign the linguistic rules of the fuzzy compensator for sol- ving the control problem of backlash. The characteristic of this control structure are: (1)According to the linear region of a output response,fuz- zy logic control supervisors and compensates the result th- at PI controller loses its job. The PI controller combined with fuzzy compensator makes the achievement of out put res- ponse easy. (2)Fuzzy compensator makes use of output change instead of error change. Simulation based on MATLAB/Simulink demonstrates that the fuzzy compensator successfully predicts the unstable output response produced by backlash, and then controls the whole system for stable output.