摘要
正如光纤替代铜线成为信息传输媒介,这一变革引领了互联网的出现,改变了世界。无铁芯变压器(coreless transformer,CLT)若能替代有铁芯变压器,必将改变电能的传输技术甚至方式,引发能源领域新的一场技术变革。文中在世界上首次基于量子力学理论的宇称时间对称原理(parity-time symmetry,PT对称)实现了高效、高性能的CLT。文中首先论述CLT的研究现状及基于PT对称原理提出PT对称CLT思想的来源;进而,介绍所提出的SS型和SP型PT对称CLT的机理和工作特性,并与有铁芯变压器进行对比;然后,介绍所推广出的两种广义PT对称CLT;最后,总结PT对称CLT的优势及尚需解决的问题。文中的研究表明,PT对称CLT不仅可以达到有铁芯变压器相同的运行特性,且可以实现单位功率因数运行,有望将在中、小功率的高频电能变换中首先得到应用。
As optical fibers replaced copper wires as an information transmission medium,they paved the way for the advent of the internet,a revolution that has since transformed the world..If coreless transformers(CLTs)can replace magnetic-core transformers,they will change the transmission technology of power,triggering a new technological change in the field of energy.The CLTs with high-efficiency and high-performance are achieved for the first time in the world based on the parity-time symmetry principle of quantum mechanics theory.The paper discusses the current research status of CLTs and the reasons for proposing the idea of CLTs based on the PT symmetry principle.Furthermore,the mechanism and operating characteristics of the proposed SS-type and SP-type PT-symmetric CLTs are introduced and compared with the CLT.Then two types of generalized PT-symmetric CLTs are extended to meet the needs of practical applications.Finally,the difficulties of PT-symmetric CLTs that need to be further improved and optimized in the future are presented.This study shows that PT-symmetric CLTs not only have the same characteristics as core transformers,but also can achieve unity power factor,making them a promising candidate for initial adoption in medium-to-low power,high-frequency power conversion applications.
作者
张波
赖立
林靖扬
杨伦
ZHANG Bo;LAI Li;LIN Jingyang;YANG Lun(School of Electric Power,South China University of Technology,Guangzhou 510641,Guangdong Province,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2024年第18期7479-7490,I0028,共13页
PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING
基金
国家自然科学基金(重点项目)(52130705)。
关键词
量子力学
宇称-时间对称
无铁芯变压器
高性能
高效率
quantum mechanics
parity-time symmetry
coreless transformer(CLT)
high performance
high efficiency
