Results 241 to 250 of about 1,047,159 (304)

High Short-Circuit Current Density via Integrating the Perovskite and Ternary Organic Bulk Heterojunction

ACS Energy Letters, 2019
We demonstrate a record short-circuit current density (28.06 mA/cm2) in a single-junction perovskite solar cell with a 1.6 eV bandgap absorber. We achieve this by integrating a ternary organic bulk heterojunction structure into a perovskite top layer to ...
Wei Chen, Huiliang Sun, Qin Hu, A. Djurišić, T. Russell, Xugang Guo, Zhubing He   +6 more
semanticscholar   +1 more source

Simultaneously increasing open-circuit voltage and short-circuit current to minimize the energy loss in organic solar cells via designing asymmetrical non-fullerene acceptor

Journal of Materials Chemistry A, 2019
Asymmetrical a-BTTIC simultaneously increases the open-circuit voltage and short-circuit current, and boosts the efficiency of OSCs with energy loss lower than 0.6 eV.
Wei Gao, Tao Liu, Jiewei Li, Yiqun Xiao, Guangye Zhang, Yuzhong Chen, Cheng Zhong, Xinhui Lu, H. Yan, Chuluo Yang   +9 more
semanticscholar   +1 more source

A Power Module for Grid Inverter With In-Built Short-Circuit Fault Current Capability

IEEE transactions on power electronics, 2020
As grid codes evolve, inverter-interfaced renewable generation may be required to take greater responsibility for grid support. It may be obliged to source a large current during a short-circuit fault in the grid and provide large dynamic reactive power,
Weihua Shao, R. Wu, L. Ran, Huaping Jiang, P. Mawby, Daniel J. Rogers, T. Green, Tom Coombs, Kieran Yardley, D. Kastha, P. Bajpai, Lin Zhou   +11 more
semanticscholar   +1 more source

Condition Monitoring IGBT Module Bond Wires Fatigue Using Short-Circuit Current Identification

IEEE transactions on power electronics, 2017
Finding and replacing the defective insulated-gate bipolar transistor (IGBT) module timely by monitoring the ageing state of IGBT can improve the reliability of a power converter and reduce the loss caused by IGBT failure.
Pengju Sun, Can Gong, Xiong Du, Yingzhou Peng, Bo Wang, Luowei Zhou   +5 more
semanticscholar   +1 more source

Rough versus planar interfaces: How to maximize the short circuit current of perovskite single and tandem solar cells

Materials Today Energy, 2019
The short circuit current of perovskite/silicon tandem solar cells has to be increased to realize solar cells with energy conversion efficiencies exceeding the records of single junction solar cells.
Wayesh Qarony, M. I. Hossain, A. Salleo, D. Knipp, Y. Tsang   +4 more
semanticscholar   +1 more source

A Current-Based Approach for Short-Circuit Fault Diagnosis in Closed-Loop Current Source Inverter

IEEE transactions on industrial electronics (1982. Print), 2020
In this article, a method based on output currents is proposed to diagnose short-circuit faults of single or double switches in current source converter.
Xiaoqiang Guo, Sen Sui, Baocheng Wang, Wenlin Zhang   +3 more
semanticscholar   +1 more source

Short-Circuit Current Estimation of Modular Multilevel Converter Using Discrete-Time Modeling

IEEE transactions on power electronics, 2019
Short-circuit faults are hazardous for high-power modular multilevel converters (MMCs). Hence, an accurate current calculation will be helpful for the design of the system protection. In this letter, a new method for the short-circuit current calculation
Yushuang Liu, Meng Huang, X. Zha, H. Iu
semanticscholar   +1 more source

Tunnel Magnetoresistance-Based Short-Circuit and Over-Current Protection for IGBT Module

IEEE transactions on power electronics, 2020
This article presents a short-circuit and over current protection method using a new current sensor—tunnel magnetoresistance (TMR). The resistance of TMR changes with the magnetic flux density and a Wheatstone bridge circuit-based TMR can be used for ...
Shuai Shao, N. Yu, Xiaopeng Xu, Jianmin Bai, Xinke Wu, Junming Zhang   +5 more
semanticscholar   +1 more source

A new model to evaluate solar spectrum impacts on the short circuit current of solar photovoltaic modules

Energy, 2019
Solar spectrum plays an important role on electrical performance of PV modules via affecting their short circuit current. In this study, a new model combining the impacts of both air mass and diffuse solar radiation ratio is developed to evaluate the ...
Jinqing Peng, Lin Lu, M. Wang
semanticscholar   +1 more source

Short-circuit fault current-limiting characteristics of a resistive-type superconducting fault current limiter in DC grids

Superconductors Science and Technology, 2020
Resistive-type superconducting fault current limiters (R-SFCLs) can limit short-circuit fault current and help DC circuit breakers (DCCBs) to isolate short-circuit faults in medium voltage and high voltage DC (HVDC) systems.
B. Xiang, Lei Gao, Zhiyuan Liu, Yingsan Geng, Jianhua Wang   +4 more
semanticscholar   +1 more source