Results 181 to 190 of about 10,677,552 (246)

Current transformer (CT) saturation classification using empirical mode decomposition (EMD) and relevance vector machine (RVM). [PDF]

Sci Rep
Chothani N, Vyas P, Sonawane C, Chan CK.
europepmc   +1 more source

Risk assessment of karst water inrush in tunnel engineering based on improved game theory and uncertainty measure theory. [PDF]

Sci Rep
Zhao R, Zhang L, Hu A, Kai S, Fan C.
europepmc   +1 more source

Research on an identification model for mine water inrush sources based on the HBA-CatBoost algorithm. [PDF]

Sci Rep
Xu J, Zheng L, Lan H, Zuo Y, Li B, Tian S, Tian Y.   +6 more
europepmc   +1 more source

Safety risk assessment of weak tunnel construction with rich groundwater using an improved weighting cloud model. [PDF]

Sci Rep
Sheng D, Tan F, Zhang Y, Zhu H, Zuo C, Lv J.   +5 more
europepmc   +1 more source

Experimental study on shear behavior of Polyurethane/water glass-filled planar rock joints. [PDF]

PLoS One
Yu H, Liu R, Xiao D, Li S, Han X, Hu M, Wang Y.   +6 more
europepmc   +1 more source

An enhanced protection scheme for power transformers integrating alpha plane analysis. [PDF]

Sci Rep
Sayed AS, Nabil EM, Abdelaziz AY, Bajaj M, Zaitsev I.   +4 more
europepmc   +1 more source

Theoretical and numerical investigations of the floor failure characteristics affected by coal mining near complex fault structures. [PDF]

Sci Rep
Han Z, Qiu M, Teng C, Shi L, Gai G, Zhao J.   +5 more
europepmc   +1 more source

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An Ultra-Fast Inrush-Current-Free Startup Method for Grid-tie Inverter without Voltage Sensors

Applied Power Electronics Conference, 2023
This paper proposes an ultra-fast inrush-current-free startup method for grid-tie inverters without voltage sensors and phase-locked loop (PLL). Traditionally, the grid-tie inverter needs the voltage measured from points of common couplings (PCC) to ...
Yuchen He, Yuan Li, Bokang Zhou, Yuntao Zou, Fang Peng   +4 more
semanticscholar   +1 more source

Seventeen Level Switched Capacitor Inverters With the Capability of High Voltage Gain and Low Inrush Current

IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 2023
The topology of a 17-level (17L) hybrid switched-capacitor multilevel inverter (SCMLI) with high voltage gain is presented in this work. A single source, four capacitors, six half-bridge switches (five with antiparallel diodes and one half-bridge without
Vishal Anand, Varsha Singh, Xiaoqiang Guo, M. J. Sathik, Y. Siwakoti, S. Mekhilef, F. Blaabjerg   +6 more
semanticscholar   +1 more source

An Inrush Current Limiting Strategy for Virtual-Oscillator-Controlled Grid-Forming Inverters

IEEE transactions on energy conversion, 2023
Grid-forming (GFM) inverters refer to the ones that can regulate inverter voltages and frequencies instantaneously and simultaneously. In this paper, we focus on a recent time-domain GFM controller based on the virtual oscillator control realized by the ...
Minghui Lu
semanticscholar   +1 more source