Model-Based Visual Feedback Control of Voice Coil Motors

• Main Authors: Yang, Hsu, 楊頊
• Other Authors: Wu, Jenq-Lang
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/00228469811363733522

碩士 === 國立臺灣海洋大學 === 電機工程學系 === 102 === The implementation of visual feedback control systems is very difficult since the sampling rate is very low. In this thesis we consider the design of a visual feedback position controller for a voice coil motor (VCM) with a flexible load. By the distance information obtained from the visual sensor, a new model-based output feedback controller is designed for controlling the VCM to quickly move to a specified position. We use the optimal control theory, the regional pole placement approach, and the sliding mode control method, respectively, in the design of model-based controllers. We first calculate the controller parameters by Matlab software, and then implement the controller in a DSP28335 digital signal processor. Compared with the traditional state feedback controllers, the proposed model-based visual feedback controller provides a similar control performance.