传感技术学报Issue(6)：736-742,7.DOI:10.3969/j.issn.1004-1699.2014.06.006
新型动磁式直线振荡执行器的动子位移自传感
Self-Sensing Technique of Mover Displacement for a Novel Moving-Magnet Type Linear Oscillatory Actuator
摘要
Abstract
Based on the mathematical model of electromechanical system for a novel moving-magnet type Linear oscillatory actuator without inner stator, the self-sensing algorithm of mover displacement for the linear oscillatory actuator is established, which is achieved by the full-dimensional state observer. Mover displacement is estimated through input voltage and output current signal processing and calculating. The simulation and experimental results show that the self-sensing algorithm can achieve the mover displacement of different electrical driving frequency under VVVF control mode. The maximum absolute error of estimated stroke is 0. 32 mm,and the maximum relative error is 2. 6%. This method is suitable to the variable stroke control of directly driven compressors and pumps.关键词
直线振荡执行器/动磁式/动子位移/状态观测器/自传感Key words
linear oscillatory actuator ( LOA )/moving-magnet type/mover displacement/state observer/self-sensing technique分类
信息技术与安全科学引用本文复制引用
雷美珍,戴文战,夏永明..新型动磁式直线振荡执行器的动子位移自传感[J].传感技术学报,2014,(6):736-742,7.基金项目
国家自然科学基金项目(51107119) （51107119）
浙江省科技厅项目(2014C33109) （2014C33109）
