Results 231 to 240 of about 1,303 (282)

A Junction Temperature Prediction Method Based on Multivariate Linear Regression Using Current Fall Characteristics of SiC MOSFETs. [PDF]

Sensors (Basel)
Qin H, Zhang Y, Zeng Y, Kang Y, Zhu Z, Wu F.   +5 more
europepmc   +1 more source

Neutrophil in the suppressed immune microenvironment: Critical prognostic factor for lung adenocarcinoma patients with KEAP1 mutation. [PDF]

Front Genet
Wang Z, Wang H, Liu M, Ning X, Chen Y, Tang H.   +5 more
europepmc   +1 more source

ONIX: a unified open-source platform for multimodal neural recording and perturbation during naturalistic behavior. [PDF]

Nat Methods
Newman JP, Zhang J, Cuevas-López A, Miller NJ, Honda T, van der Goes MH, Leighton AH, Carvalho F, Lopes G, Lakunina A, Siegle JH, Harnett MT, Wilson MA, Voigts J.   +13 more
europepmc   +1 more source

A Quantitative Index to Evaluate the Commutation Failure Probability of LCC-HVDC with a Synchronous Condenser

Applied Sciences (Switzerland), 2019
Since thyristor cannot turn off automatically, line commutated converter based high voltage direct current (LCC-HVDC) will inevitably fail to commutate and therefore auxiliary controls or voltage control devices are needed to improve the commutation ...
Chunyi Guo, Atiq Ur Rehman, Chengyong Zhao   +2 more
exaly   +4 more sources

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Commutation Failure Analysis in Multi-Infeed HVDC Systems

IEEE Transactions on Power Delivery, 2011
The commutation failure vulnerability of multi-infeed HVDC converters to ac side faults is analyzed. Faults in multi-infeed systems can cause commutation failure events in the nearby local converter or concurrently in both converters. The immunity of the system to both these events is investigated and suitably parameterized.
A M Gole
exaly   +2 more sources

Predictive Commutation Failure Suppression Strategy for High Voltage Direct Current System Considering Harmonic Components of Commutation Voltage

Processes, 2022
The commutation failure of high voltage direct current (HVDC) systems could lead to unstable operation of the alternating current/direct current (AC/DC) hybrid power grid.
Zeyu Cao, Bingtuan Gao, Wang Xingang
exaly   +2 more sources

An Enhanced Strategy to Inhibit Commutation Failure in Line-Commutated Converters

IEEE Transactions on Industrial Electronics, 2020
Failure of the commutation process is a serious malfunction in line-commutated high-voltage direct current (HVdc) converters, which mainly occurs due to inverter ac faults and may lead to outage of the HVdc system. In this paper, an improved strategy is developed that functions based on the SIEMENS HVdc control system under normal conditions and ...
Sohrab Mirsaeidi, Xinzhou Dong
openaire   +1 more source

Average-Value Modeling of Line-Commutated Inverter Systems With Commutation Failure

IEEE Transactions on Power Delivery, 2022
Line-commutated converters are extensively used as the interface between ac grids and classic HVDC systems. At the inverter side, commutation failure of switches is one of the most common faults that can pose threats to the system operation. Practical and reliable study of such phenomena relies on accurate and efficient converter models for simulations.
Zeqi Hong, Seyyedmilad Ebrahimi, Yin Xu, Juri Jatskevich, Jinghan He   +4 more
openaire   +1 more source

Research on Commutation Failure of HVDC

Advanced Materials Research, 2013
The waveforms of the RTDS(Real Time Digital Simulator) commutation failure and ABB MACH2 system commutation failure protection have been combined to analyze the mechanism of HVDC commutation failure. Several reasons for inverter commutation failure have been found, and a detailed analysis is also been given for the missing pulse and commutation which ...
Tang Xian Chen, Jun Jie Luo, Jie Hong Lu
openaire   +1 more source