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NETWORK-CENTRIC TECHNOLOGIES FOR CONTROL OF THREE-PHASE NETWORK OPERATION MODES [PDF]

Electrical engineering & Electromechanics, 2017
Purpose. The development of the control system for three-phase network is based on intelligent technologies of network-centric control of heterogeneous objects.
Ye. I. Sokol, Iu. A. Sirotin, T. S. Ierusalimova, O. G. Gryb, S. V. Shvets, D. A. Gapon   +5 more
doaj   +5 more sources

Impedance Modeling and Stability Analysis of Three-Phase Four-Wire Inverter with Grid-Connected Operation

Energies, 2022
With the continuous penetration and development of renewable energy power generation, distributed grids and microgrids are becoming increasingly important in power systems.
Guoli Feng, Zhihao Ye, Yihui Xia, Liming Huang, Zerun Wang   +4 more
doaj   +1 more source

Research on Fault-Tolerant Operation Strategy of Permanent Magnet Synchronous Motor with Common DC Bus Open Winding Phase-Breaking Fault

Energies, 2022
In some key areas, fault-tolerant control is usually needed in order to enable the motor to operate continuously in fault mode. Given that it is difficult to detect the zero-sequence current of the open winding permanent magnet synchronous motor after ...
Kangfei Lv, Xinwei Dong, Cong Zhu
doaj   +1 more source

AC Fault Ride-Through Strategy of a Transformerless Soft Normally Open Point

Applied Sciences, 2022
This paper focuses on the soft normally open point (SNOP) which has no transformers and connects to the 10 kV distribution network through the arc suppression coil grounding mode.
Feng Xu, Xiaoming Huang, Yi Lu, Zheren Zhang   +3 more
doaj   +1 more source

Underground power supply system grounding fault section positioning method based on wide-area current transient component

Gong-kuang zidonghua, 2022
At present, most of the research on underground power supply system grounding fault positioning in coal mine adopts the transient method, which needs to collect zero sequence voltage and zero sequence current of the line at the same time.
OUYANG Min, DU San'en, LI Wenjun, HOU Gang, XUE Zhongxin, YANG Feiwen, GAO Bin, FAN Shengjun, WANG Feng, MAO Hao, HAN Peiqiang   +10 more
doaj   +1 more source

Characteristic Quantity Analysis of Single-Phase Contact Tree Ground Fault of Distribution Network Overhead Lines

Energies, 2023
When the overhead line passes through the forest area, the conductor may contact the line to induce the tree-contact single-phase-to-ground fault (TSF), and the persistence of TSF may induce wildfires, bringing serious consequences.
Jianbo He, Yao Zhou, Yilin Li, Guangqing Zhang, Jiayu Liang, Hao Shang, Wenjun Ning   +6 more
doaj   +1 more source

A Zero-Sequence Steerable CBPWM Strategy for Eliminating Zero-Sequence Current of Dual-Inverter Fed Open-End Winding Transformer Based PV Grid-Tied System With Common DC Bus

IEEE Access, 2020
Aiming at the issue of zero-sequence current (ZSC) in the dual-inverter fed open-end winding transformer (OEWT-DI) based photovoltaic (PV) grid-tied system with common DC bus, a carrier-based pulse width modulation (CBPWM) strategy with steerable zero ...
Baoji Wang, Xing Zhang, Renxian Cao
doaj   +1 more source

Analysis on Circulating Current and Split Capacitor Voltage Balance for Modular Multilevel Converter Based Three-phase Four-wire Split Capacitor DSTATCOM

Journal of Modern Power Systems and Clean Energy, 2021
We propose a modular multilevel converter (MMC) based three-phase four-wire (3P4W) split capacitor distribution static synchronous compensator (DSTATCOM), aiming at compensating unbalanced and reactive load currents.
Lei Lin, Jialu He, Chen Xu
doaj   +1 more source

The power of unit root tests under local-to-finite variance errors [PDF]

, 2015
We study the power of four popular unit root tests in the presence of a local-to-finite variance DGP. We characterize the asymptotic distribution of these tests under a sequence of local alternatives, considering both stationary and explosive ones .
Cappuccio, Nunzio, Lubian, Diego, Mistrorigo, Mirko   +2 more
core   +1 more source

On the spectrum of the Thue-Morse quasicrystal and the rarefaction phenomenon [PDF]

, 2008
The spectrum of a weighted Dirac comb on the Thue-Morse quasicrystal is investigated, and characterized up to a measure zero set, by means of the Bombieri-Taylor conjecture, for Bragg peaks, and of another conjecture that we call Aubry-Godr\`eche-Luck ...
Gazeau, Jean-Pierre, Verger-Gaugry, Jean-Louis   +1 more
core   +3 more sources