Results 31 to 40 of about 191,656 (310)

A light-driven turbine-like micro-rotor and study on its light-to-mechanical power conversion efficiency

, 2012
A light driven micro-rotor is a useful telecontrolled device free of mechanical contact for power supply. However, low efficiency in converting light to mechanical power detracts from its advantages because it incurs a high power consumption that might ...
胡国庆, Ostendorf A, Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China., Niu LG, Lin XF, Chen, QD, Li QS, Sun HB, Chen QD   +8 more
core   +1 more source

Analysis and suppression method of synchronous frequency resonance for self-synchronizing voltage source inverter

International Journal of Electrical Power & Energy Systems
Self-synchronizing voltage source inverter (SSVSI) can effectively improve grid frequency stability. However, the synchronous frequency resonance (SFR) inevitably exists in SSVSI.
Youze Fu, Yandong Chen, Zhiwei Xie, Zili Wang, Shixiang Cao, Xuyang Li, Xudong Li, Hua Li   +7 more
doaj   +1 more source

Soft-switching SiC power electronic conversion for distributed energy resources and storage applications

Journal of Modern Power Systems and Clean Energy, 2019
Power electronic conversion plays an important role in flexible AC or DC transmission and distribution systems, integration of renewable energy resources, and energy storage systems to enhance efficiency, controllability, stability, and reliability of ...
Keyan Shi, Jinyi Deng, An Zhao, Dehong Xu   +3 more
doaj   +1 more source

Analysis and Experiment of the Laser Wireless Energy Transmission Efficiency Based on the Receiver of Powersphere

IEEE Access, 2021
Long-distance wireless energy transmission is realized by photoelectric conversion through lasers and photovoltaic cells. However, existing devices have low transmission power and low transmission efficiency.
Tiefeng He, Libin Zhang, Guoliang Zheng, Can Yang, Meng Wang, Guobing Pan   +5 more
doaj   +1 more source

A High Efficiency Conversion System for Elevators

, 2007
A high efficiency conversion system based on supercapacitor energy recover and Power Factor Correction (PFC) is proposed for motion system, such as elevators.
G. TOMASSO, ATTAIANESE C, C. Attaianese, Nardi, Vito, Tomasso, Giuseppe, Attaianese, Ciro, V. Nardi, NARDI V   +7 more
core   +1 more source

Quantitative stability analysis of STATCOM in voltage control mode and Enhanced control method based on voltage feedforward

International Journal of Electrical Power & Energy Systems
STATCOM is a crucial device for reactive power compensation and voltage regulation. However, under weak grid conditions, oscillations may arise during voltage control (VC) mode operation due to the AC Voltage Controller (AVC), potentially jeopardizing ...
Song Zhang, Yandong Chen, Qianyuan Li, Zhiwei Xie, Youze Fu, Wenhua Wu   +5 more
doaj   +1 more source

Optimation of Layers Thickness Design of Perovskite Solar Cell (PSC) Using GPVDM Simulation

Computational and Experimental Research in Materials and Renewable Energy, 2019
In this research, perovskite solar cells by configuring ITO/PEDOT:PSS/CH3NH3PbI3/ZnO/Al changed to optimize their performance. Modifications are made by varying the thickness of each layer to increase the ideal thickness with an optimal power conversion ...
Dita Puspita
doaj   +1 more source

A High-Efficiency Driver Circuit for a Gas-Sensor Microheater Based on a Switch-Mode DC-to-DC Converter

Sensors, 2020
Low power consumption is one of the critical factors for successful Internet of Things (IoT) applications. In such applications, gas sensors have become a main source of power consumption because energy conversion efficiency of the microheater is ...
Tzu-Sen Yang, Jin-Chern Chiou
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Flexibility provision by virtual power line and soft open point in AC/DC distribution systems

International Journal of Electrical Power & Energy Systems
The increasing penetration of photovoltaic generation will significantly challenge the voltage quality, power flow, power losses in active distribution networks.
Xiaodong Yang, Wentao Jiang, Jing Ma, Da Xu, Chengjia Zhang, Yue Yang, Zhicheng Xu   +6 more
doaj   +1 more source