在磁耦合谐振式无线电能传输系统中,针对线圈间水平方向偏移时互感骤降而导致的系统运行稳定性问题,本文设计了一种具有高偏移容忍度的对称反向串联线圈(symmetrical reverse series coil,SRSC)磁耦合机构。SRSC结构的接收线圈采用两个...在磁耦合谐振式无线电能传输系统中,针对线圈间水平方向偏移时互感骤降而导致的系统运行稳定性问题,本文设计了一种具有高偏移容忍度的对称反向串联线圈(symmetrical reverse series coil,SRSC)磁耦合机构。SRSC结构的接收线圈采用两个同心圆形线圈反向串联连接,在没有额外增加任何谐振补偿网络和辅助控制装置的情况下,能够大幅度提高系统在任意水平方向上的偏移容忍度。本文首先提出一种空心圆形线圈在偏移工况下的互感计算方法,然后分析SRSC磁耦合机构的结构特性和互感特性,并提出一种基于恒定互感的磁耦合机构优化设计方法。仿真和实验结果验证了理论计算分析的正确性,SRSC结构能够有效解决无线电能传输系统线圈水平方向偏移的互感剧烈波动问题,使系统在发射线圈外径50%偏移范围内仍能保持高效运行,提升了系统的稳定性。展开更多
Social computing, as the technical foundation of future computational smart societies, has the potential to improve the effectiveness of opensource big data usage, systematically integrate a variety of elements includ...Social computing, as the technical foundation of future computational smart societies, has the potential to improve the effectiveness of opensource big data usage, systematically integrate a variety of elements including time, human, resources, scenarios, and organizations in the current cyber-physical-social world, and establish a novel social structure with fair information, equal rights, and a flat configuration. Meanwhile, considering the big modeling gap between the model world and the physical world, the concept of parallel intelligence is introduced. With the help of software-defined everything, parallel intelligence bridges the big modeling gap by means of constructing artificial systems where computational experiments can be implemented to verify social policies, economic strategies, and even military operations. Artificial systems play the role of ＂social laboratories＂ in which decisions are computed before they are executed in our physical society. Afterwards, decisions with the expected outputs are executed in parallel in both the artificial and physical systems to interactively sense, compute, evaluate and adjust system behaviors in real-time, leading system behaviors in the physical system converging to those proven to be optimal in the artificial ones. Thus, the smart guidance and management for our society can be achieved.展开更多
The design process for integrated inductors generally requires a geometry optimization step. During this step, many geometries must be simulated and fast and accurate formulae are therefore required for the computatio...The design process for integrated inductors generally requires a geometry optimization step. During this step, many geometries must be simulated and fast and accurate formulae are therefore required for the computation of self and mutual inductances of turns. This paper especially deals with numerical evaluation of the mutual inductance of two coaxial circular wire loops. Several computation methods are presented and compared. Finally, an expression is built-up and proven to be very few computing time consuming and 1% accurate for any kind of geometry. The application of this expression to integrated inductive components modelization is recalled to mind, however, this work gives a general and fast computable solution to the electromagnetic problem.展开更多
文摘在磁耦合谐振式无线电能传输系统中,针对线圈间水平方向偏移时互感骤降而导致的系统运行稳定性问题,本文设计了一种具有高偏移容忍度的对称反向串联线圈(symmetrical reverse series coil,SRSC)磁耦合机构。SRSC结构的接收线圈采用两个同心圆形线圈反向串联连接,在没有额外增加任何谐振补偿网络和辅助控制装置的情况下,能够大幅度提高系统在任意水平方向上的偏移容忍度。本文首先提出一种空心圆形线圈在偏移工况下的互感计算方法,然后分析SRSC磁耦合机构的结构特性和互感特性,并提出一种基于恒定互感的磁耦合机构优化设计方法。仿真和实验结果验证了理论计算分析的正确性,SRSC结构能够有效解决无线电能传输系统线圈水平方向偏移的互感剧烈波动问题,使系统在发射线圈外径50%偏移范围内仍能保持高效运行,提升了系统的稳定性。
文摘Social computing, as the technical foundation of future computational smart societies, has the potential to improve the effectiveness of opensource big data usage, systematically integrate a variety of elements including time, human, resources, scenarios, and organizations in the current cyber-physical-social world, and establish a novel social structure with fair information, equal rights, and a flat configuration. Meanwhile, considering the big modeling gap between the model world and the physical world, the concept of parallel intelligence is introduced. With the help of software-defined everything, parallel intelligence bridges the big modeling gap by means of constructing artificial systems where computational experiments can be implemented to verify social policies, economic strategies, and even military operations. Artificial systems play the role of ＂social laboratories＂ in which decisions are computed before they are executed in our physical society. Afterwards, decisions with the expected outputs are executed in parallel in both the artificial and physical systems to interactively sense, compute, evaluate and adjust system behaviors in real-time, leading system behaviors in the physical system converging to those proven to be optimal in the artificial ones. Thus, the smart guidance and management for our society can be achieved.
文摘The design process for integrated inductors generally requires a geometry optimization step. During this step, many geometries must be simulated and fast and accurate formulae are therefore required for the computation of self and mutual inductances of turns. This paper especially deals with numerical evaluation of the mutual inductance of two coaxial circular wire loops. Several computation methods are presented and compared. Finally, an expression is built-up and proven to be very few computing time consuming and 1% accurate for any kind of geometry. The application of this expression to integrated inductive components modelization is recalled to mind, however, this work gives a general and fast computable solution to the electromagnetic problem.
