摘要
现有常导高速磁浮列车的车端悬浮电磁铁采用直流励磁,属直流电磁悬浮。车端悬浮电磁铁也可采用交流励磁,交流电磁悬浮在非接触电能传输、磁场定向控制等方面具有比较优势,具备提升常导高速磁浮交通系统性能并降低其成本的技术潜力;但其在电磁力时空不平衡、动子控制器容量等方面存在技术挑战。文章分析了交流电磁悬浮的原理与技术特点,介绍了该领域的发展态势、实践探索历程与阶段性成果;阐述了交流电磁悬浮用于高速磁浮交通的潜在技术优势和技术挑战,并在此基础上给出后续发展建议。
The suspension electromagnets on current normal conductor-based high-speed maglev vehicles adopt direct current(DC)excitation,which belongs to DC electromagnetic suspension.The suspension electromagnets on maglev vehicles also can adopt alternating current(AC)excitation,and AC electromagnetic suspension has comparative advantages in contactless power transfer and field-oriented control.Therefore,it has the technical potential to enhance the performance and reduce the cost of the normal conductor-based high-speed maglev transportation system.However,AC electromagnetic suspension faces technical challenges including the spatiotemporal imbalance of the electromagnetic forces and the capacity of the mover motor controller.This article analyzes the principle and technical characteristics of AC electromagnetic suspension and introduces the development status in this field,the practical exploration process,and the phased achievements.Then,the article discusses the potential technical advantages and challenges of applying AC electromagnetic suspension to high-speed maglev transportation and provides follow-up research and development suggestions.
作者
钟再敏
王业勤
吉文
陈小鸿
ZHONG Zaimin;WANG Yeqin;JI Wen;CHEN Xiaohong(School of Automotive Studies,Tongji University,Shanghai 201804,China;State Key Laboratory of High-speed Maglev Transportation Technology,Tongji University,Shanghai 201804,China)
出处
《前瞻科技》
2023年第4期105-114,共10页
Science and Technology Foresight
基金
国家自然科学基金(52202448)。
关键词
牵引/悬浮/非接触供电一体化
交流电磁悬浮
准同步运行双馈直线电机
integrated traction/suspension/contactless power transfer
AC electromagnetic suspension
quasi-synchronous operation of doubly-fed linear motor
