Results 1 to 10 of about 7,816,870 (253)

Numerical methodology to evaluate unipolar saturation current limit of DC corona discharge in complex geometries [PDF]

open access: yesScientific Reports, 2022
The unipolar saturation current limit ( $${I}_{sat}$$ I sat ) gives an upper limit to the corona current that can be obtained from a unipolar corona discharge.
Sangwoo Kim, Jungho Hwang
doaj   +2 more sources

The study on the Mal-operation of the transformer current differential protection during external faults cause by CT saturation [PDF]

open access: yesE3S Web of Conferences, 2021
This paper analyses the unusual mal-operation of the differential protection for transformer current differential protection during the external fault. The mal-operation reason is researched in detail, based on the mathematical analysis, the simulation ...
Wu Jianhong   +5 more
doaj   +1 more source

Trench Shielded Planar Gate IGBT (TSPG-IGBT) With Self-Biased pMOS Realizing Both Low On-State Voltage and Low Saturation Current

open access: yesIEEE Journal of the Electron Devices Society, 2020
A novel trench shielded planar gate IGBT (TSPG-IGBT) with self-biased pMOS is proposed in this paper. It features a P-layer beneath the trench of the TSPG-IGBT to form a self-biased pMOS, which provides an additional path for the hole current and clamps ...
Rongxin Chen, Bo Yi, Xing Bi Chen
doaj   +1 more source

Adjusting the Single-Diode Model Parameters of a Photovoltaic Module with Irradiance and Temperature

open access: yesEnergies, 2020
This paper presents a concise discussion and an investigation of the most literature-reported methods for modifying the lumped-circuit parameters of the single-diode model (SDM) of a photovoltaic (PV) module, to suit the prevailing climatic conditions of
Nader Anani, Haider Ibrahim
doaj   +1 more source

A Novel Shielded IGBT (SIGBT) With Integrated Diodes

open access: yesIEEE Journal of the Electron Devices Society, 2020
A novel 3.3 kV Shielded Insulated Gate Bipolar Transistor (SIGBT) is proposed in this paper. Unlike the partly shielded N-injector of the diode-clamped TIGBT, which is the carrier store layer, the SIGBT features a diode-clamped P-layer to completely ...
Rongxin Chen   +3 more
doaj   +1 more source

Performance Evaluation of Analytical Methods for Parameters Extraction of Photovoltaic Generators

open access: yesEnergies, 2020
This paper presents a succinct exploration of several analytical methods for extracting the parameters of the single-diode model (SDM) of a photovoltaic (PV) module under standard test conditions (STC). The paper investigates six methods and presents the
Nader Anani, Haider Ibrahim
doaj   +1 more source

FPGA-Based Smart Sensor to Detect Current Transformer Saturation during Inrush Current Measurement

open access: yesSensors, 2023
Current transformer saturation affects measurement accuracy and, consequently, protection reliability. One important concern in the case of overcurrent protections is the discrimination between faults and inrush current in power transformers.
G. de J. Martínez-Figueroa   +2 more
doaj   +1 more source

Transmission Line Distance Protection Under Current Transformer Saturation

open access: yesJournal of Modern Power Systems and Clean Energy, 2021
Conventional transmission line distance protection approaches are subject to malfunction under reverse fault-induced current transformer (CT) saturation for the typically employed breaker-and-a-half configuration.
Yuping Zheng   +5 more
doaj   +1 more source

EVALUATION OF CURRENT SIGNALS AT OBSERVED POINTS OF THE ELECTRICAL NETWORK IN PROBLEMS OF IDENTIFICATION OF CURRENT TRANSFORMER SATURATION

open access: yesВестник Северо-Кавказского федерального университета, 2022
Despite the fact that the problem of saturation of current transformers (CT) has been known for a long time, it has not lost its relevance now. Cases of malfunctioning as a result of oversaturation of CT are still recorded today.
P. Shagimardanov
doaj   +1 more source

Current Measurement Offset Error Compensation Scheme Considering Saturation of Current Controller in SPMSM Drives

open access: yesIEEE Access, 2023
A current measurement offset error compensation method for surface-mounted permanent magnet synchronous motor (SPMSM) drives that shows stable operating characteristics under the saturation of the current controller is proposed.
Sang-Il Kim   +2 more
doaj   +1 more source

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