摘要
为了研究单点常导电磁悬浮系统的系统结构和控制算法,该文设计一套小型实验装置。针对现有悬浮斩波器输出的电流纹波较大和悬浮损耗较高等问题,使用第三代功率半导体SiC MOSFET优化悬浮斩波器,实现高开关频率和低开关损耗。实验结果表明,基于SiC MOSFET的悬浮斩波器可有效降低电流纹波并减小功率损耗。单点常导电磁悬浮实验涉及自动控制原理、电力电子技术、模拟电路、数字电路等多门学科,该装置可作为自动控制原理和电力电子技术的实验教学装置,帮助本科生深入课程内容和提升实践动手能力。
In order to study the system structure and control algorithm of the single-point routine conductive magnetic levitation system,a small experimental device is designed in this paper.In view of the large current ripple and high levitation loss in output of the existing levitation chopper,the third-generation power semiconductor SiC MOSFET is utilized.It would support high switching frequency and low switching loss to design an optimized levitation chopper.Experimental results show that utilizing levitation chopper based on SiC MOSFET can effectively reduce current ripple and power loss.Single-point routine conductive magnetic levitation experiment extends automatic control principle,power electronics technology,analog circuit,digital circuit and other subjects.It can be used as an experimental teaching device of automatic control principle and power electronics technology to help undergraduate students reinforce the understanding of the course content and improve practical ability.
作者
胡海林
万金安
杨星
陈雨晖
曹泽华
HU Hailin;WAN Jin'an;YANG Xing;CHEN Yuhui;CAO Zehua(School of Electrical Engineering and Automation,Jiangxi University of Science and Technology,Ganzhou 341000,China;Jiangxi Province Key Laboratory of Maglev Technology,Ganzhou 341000,China)
出处
《实验技术与管理》
CAS
北大核心
2023年第5期141-147,共7页
Experimental Technology and Management
基金
国家自然科学基金项目(52262050)
江西理工大学教学改革研究课题(XJG-2020-5)。
