Results 61 to 70 of about 132,727 (310)

Improved voltage balancing scheme for the MLI based DSTATCOM with Sliding Mode Controller

Journal of Applied Science and Engineering
In this article is used to demonstrate of sliding mode controller (SMC) for a multilevel inverter based distributed static compensator (DSTATCOM)for compensation of current harmonics related power quality issues and dc side capacitor voltage balancing of
Kalagotla Chenchireddy, V Jegathesan
doaj   +1 more source

A Modularized Discharge-Type Balancing Topology for Series-Connected Super Capacitor String

Energies, 2018
This paper proposed a modularized discharge-type topology for the voltage balance of series-connected super capacitor (SC) string. The proposed topology consists of cascaded converter modules and a boost converter.
Shaogui Fan, Li Sun, Jiandong Duan, Dong Zhang   +3 more
doaj   +1 more source

A Study on the Improved Capacitor Voltage Balancing Method for Modular Multilevel Converter Based on Hardware-In-the-Loop Simulation

Electronics, 2019
In the power industry, hardware in-the-loop simulation (HILS) based on a real-time digital simulator (RTDS) is important technology for modular multilevel converter (MMC)-based high-voltage direct current (HVDC) power transmission. It is possible in real
Junmin Lee, D. Kang, Jangmyung Lee
semanticscholar   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

A SOC equilibrium control strategy for MMC-SCES based on capacitor voltage balancing

Zhejiang dianli
The super capacitor energy storage （SCES） system based on modular multilevel converter （MMC） is one of the key technologies for addressing issues with the grid integration of large-scale renewable energy.
YANG Qiluan, XIAO Huangqing, ZHU Qionghai   +2 more
doaj   +1 more source

Application Range Analysis and Implementation of the Logic-Processed CPS-PWM Scheme Based MMC Capacitor Voltage Balancing Strategy

CPSS Transactions on Power Electronics and Applications, 2019
Fundamental frequency sorting algorithm (FFSA) is outstanding for the MMC capacitor voltage balance due to the reduced computational burden and elimination of arm current detection.
Kun Wang, Leyuan Zhou, Yan Deng, Yi Lu, Chaoliang Wang, Feng Xu   +5 more
semanticscholar   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

A New Topology of Modular Multilevel Converter With Voltage Self-Balancing Ability

IEEE Access, 2019
The modular multilevel converter (MMC) has been used in the field of HVDC transmission due to its many advantages, but its voltage imbalance problem of sub-module capacitors affects the stable operation of the system.
Hongchun Shu, Shunguang Lei, Xincui Tian
doaj   +1 more source

Multiple-Vector Model-Predictive Power Control of Three-Phase Four-Switch Rectifiers With Capacitor Voltage Balancing

IEEE transactions on power electronics, 2018
Model-predictive power control (MPPC) takes the switching nonlinearity of power converters and system constraints into consideration. It is a promising control technique for three-phase four-switch rectifiers (TPFSRs) because capacitor-voltage-balancing ...
Dehong Zhou, Xiaoqiang Li, Yi Tang
semanticscholar   +1 more source

Dynamic Control of Synaptic Plasticity by Competing Ferroelectric and Trap‐Assisted Switching in IGZO Transistors with Al2O3/HfO2 Dielectrics

Advanced Functional Materials, EarlyView.
A frequency‐tunable ferroelectric synaptic transistor based on a buried‐gate InGaZnO channel and Al2O3/HfO2 dielectric stack exhibits linear and reversible weight updates using single‐polarity pulses. By switching between ferroelectric and trap‐assisted modes depending on input frequency, the device simplifies neuromorphic circuit design and achieves ...
Ojun Kwon, Dong Ho Lee, Seyoung Oh, Jongwon Yoon, Hyo‐Bae Kim, Ji‐Hoon Ahn, Woojin Park, Han Seul Kim, Byungjin Cho   +8 more
wiley   +1 more source