Results 131 to 140 of about 5,902,785 (262)

Optimal control set expansion method for three‐phase voltage source converter with slip window selection and online parameter modification

IET Power Electronics
Finite control set model predictive control (FCS‐MPC) has been widely used in the control of three‐phase voltage source converter (VSC), but its control performance declines sharply at low sampling frequencies.
Linqiang Hu, Wanjun Lei, Zhongxiu Xiao, Xing Sun   +3 more
doaj   +1 more source

A Preclinical Multifunctional Capsule Robot with Unified Diagnosis and Targeted Thermal Therapy for Gastrointestinal Diseases

Advanced Science, EarlyView.
A proof‐of‐concept multifunctional capsule robot integrates diagnostic imaging, magnetic navigation, wireless power transfer, and targeted thermotherapy for gastrointestinal applications. Magnetically guided positioning and stable wireless power enable localized thermal ablation, achieving controlled heating and high cell mortality in vitro.
Heng Zhang, Yichong Sun, Xiaoting Zhang, Chi‐Kwan Lee, Zheng Li, Yehui Li, Huarong Chen, Paul D. Mitcheson   +7 more
wiley   +1 more source

Power Factor Correction for DC-Powered Buildings Using an Isolated AC-DC Interlinking Converter: Experimental Validation and Comparative Analysis

In conventional ac systems, power factor correction is usually applied to medium and high-power loads, but this can reduce overall system efficiency in residential and commercial installations, where most loads are low power.
Mandrioli R., Carvalho E. L., Chub A., Vinnikov D.   +3 more
core   +1 more source

Ac-dc power converter with power factor correction

, 2020
The present invention relates to an AC-DC power converter which comprises a resonant DC-DC converter and a charge pump circuit. The charge pump circuit is configured to perform power factor correction of the AC-DC power converter by drawing current ...
Knott, Arnold, Ammar, Ahmed Morsi, Nour, Yasser A. A   +2 more
core  

A Very‐High Frequency Solution‐Processed Organic Field‐Effect Transistor With Improved Voltage‐Normalized Frequency of Transition

Advanced Science, EarlyView.
Increasing the frequency at which organic electronics operate while limiting the operation voltage is key to enabling future sustainable wireless applications. This work shows p‐type organic field‐effect transistors based on a molecularly doped, small molecule/polymer blend (C8‐BTBT:C16IDT‐BT), fabricated via direct‐writing and solution‐processing ...
Tommaso Losi, Kyle van Oosterhout, Martino Cambiaggio, Martin Heeney, Qiao He, Hans Kleemann, Alessandro Luzio, Eugenio Cantatore, Mario Caironi   +8 more
wiley   +1 more source

Enhanced Secondary Control for Power/Current Sharing in DC Microgrids Considering Communication‐Links Failures and Current and Voltage‐Controlled Converters

IET Renewable Power Generation
The stable operation of DC microgrids requires robust secondary control strategies capable of ensuring accurate power sharing and bus voltage regulation, even under adverse conditions.
Juliana C. Neves, Rafaela D. Silveira, Sergio A. O. da Silva, Leonardo P. Sampaio, Sebastián de J. Manrique Machado   +4 more
doaj   +1 more source

POWER-FREQUENCY INTERACTIONS IN AN AC/DC/AC SYSTEM [PDF]

, 1976
A study of power-frequency interactions in an AC/DC/AC system is presented in this thesis. The selected system consists of three connected hydro-electric generating stations, which transmit power to a receiving AC system over two HVDC bipolar ...
Bennett, Murray Gordon
core  

Ultrasound‐Activated Nanoinhibitors Blocking the Chemo‐Immune Checkpoint to Overcome Chemotherapy‐Induced Immune Resistance

Advanced Science, EarlyView.
A sono‐responsive chemo‐immune checkpoint nanoinhibitor (Sono‐TT8) co‐delivering TPZ chemotherapy and siXkr8 simultaneously kills tumor cells and blocks PS externalization, reversing chemotherapy‐induced immunosuppression and enhancing antitumor immunity. ABSTRACT Breast cancer features an immunosuppressive tumor microenvironment following chemotherapy
Yunfan Liu, Chier Du, Leilei Zhu, Hongjin An, Shengzhe Hou, Yi Lan, Xuemei Tang, Min Xu, Peng Luo, Hua Teng, Hao Yang, Xun Guo, Jianli Ren, Zhiyi Zhou   +13 more
wiley   +1 more source

A CC/VC‐based power tracking method for photovoltaic inverter operated in voltage control mode

IET Power Electronics
The active power control of photovoltaic (PV) inverters without energy storage can flatten the fluctuating power and support the voltage amplitude and frequency of the grid.
ZhenXiong Wang, Yingjie Peng, Hao Yi, Wei Zhang, Jingting Wu, Qiru Li, Fang Zhuo   +6 more
doaj   +1 more source

Single-stage multiport AC–DC–DC converter with reactive power control capability

This article introduces a single-stage three-port ac–dc–dc converter designed to overcome the limitations observed in conventional two-stage converters used in grid-tied applications with multiple dc sources, such as hybrid energy storage systems and ...
Sun, Tengfei, He, Zhou, Deng, Fei, Xiao, Ziheng, Pan, Xuewei, Tang, Yi   +5 more
core   +1 more source