supported in part by the National Natural Science Foundation of China(No.61963030);the Education Administration project(No.17YJA630085);the Education Reform Project(No.202137)。
Power factor correction (PFC) is widely used in many industry fields. In this paper, a novel multiplexed and paralleled PFC rectifier (MPPR) is proposed. Compared with the paralleled traditional six-switch buck-type P...
supported by the National Natural Science Foundation of China(Grant Nos.62225308,62001281);Shanghai Science and Technology Committee(Grant No.22dz1204300)。
Nanogenerators utilize nanomaterials to harvest mechanical or thermal energy at the micro-nano scale,thereby providing power for small self-sustaining devices.Compared to traditional generators,nanogenerators offer ad...
supported by the National Key Research and Development Program of China(No.2022YFB2405400);in part by the National Natural Science Foundation of China(No.52237004)。
Diode-rectifier-based high-voltage direct current(DR-HVDC)systems are considered an attractive solution for integrating offshore wind farms(OWFs).Grid-forming(GFM)control with a rational reactive power allocation capa...
funded by the New Zealand Ministry of Business,Innovation and Employment through the project‘High Magnetic Field Electric Propulsion for Space’,contract number RTVU2003;the Strategic Science Investment Fund‘Advanced Energy Technology Plat-forms’under Contract RTVU2004.
Despite repeated proposals to uillize superconducting magnets in space since at least the 1970s,examples of their use remain scant.One of the technical challenges is to maintai n sui table cryogenic temperatures on a ...
supported in part by the Natural Science Foundation of Shaanxi Province under Grant 2023JCQN0534;in part by the Natural Science Foundation of Shaanxi Provincial Department of Education under Grant 23JK0660;in part by the Xi’an Municipal Bureau of Science and Technology under Grant 24GXF0085。
The information of the field current is essential for the brushless synchronous starter/generator system,which determines the performance and health status of this system.However,since the field winding of the main ma...
To improve the reliability of the light emitting diode(LED)signal lamp filament current monitoring alarm instrument for metro systems,a new type of hot standby online monitoring apparatus was developed which is based ...
supported in part by STI 2030-Major Projects under Grant 2022ZD0209200;in part by National Natural Science Foundation of China under Grant Nos.62374099;in part by the Tsinghua-Toyota Joint Research Fund,in part by Beijing Natural Science Foundation-Xiaomi Innovation Joint Fund(L233009;in part by the Daikin Tsinghua Union Program,in part supported by Tsinghua University-Zhuhai Huafa Industrial Share Company Joint Institute for Architecture Optoelectronic Technologies(JIAOT KF202204);in part by Independent Research Program of School of Integrated Circuits,Tsinghua University;This work was also sponsored by CIE-Tencent Robotics X Rhino-Bird Focused Research Program.
Thermal rectification(TR)is a phenomenon akin to electrical rectification.It has a high thermal conductivity(k)in one direction,enabling efficient heat dissipation,as well as a low k in the opposite direction,impeding...
supported by National Natural Science Foundation of China(61963030).
This paper proposes a high-efficiency PFC rectifier based on multiplexing the switches.Compared with a traditional six-switch PFC rectifier,the proposed rectifier extends the switches’active angle by making use of th...
supported in part by National Natural Science Foundation of China(Grant Nos.61974115,U2241220);National Key Research and Development Program of China(Grant No.2021YFB3602404);Fund of National Innovation Center of Radiation Application(Grant No.KFZC2022020401);Natural Science Basic Research Plan in Shaanxi Province of China(Grant No.2023-JC-QN-0669).
With the development of integrated circuits,there is a growing demand for higher power devices[1].Gallium oxide(Ga_(2)O_(3))holds promise for high power devices due to its wide bandgap and high breakdown electric fiel...
This work was supported in part by National Key Research and Development Program(Grant No.2022YFB3607600);National Natural Science Foundation of China(Grant No.62204195);Key Research and Development Program of Jiangsu Province(Grant No.BE2022057-2);Fundamental Research Funds for the Central Universities(Grant No.XJS221109).
Microwave power transmission(MPT)could realize the point-to-point long-distance transfer of energy without any wires,which makes it attractive for solar-powered satellites,drones,and implantable medical devices,and ha...