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Practical calculation of asymmetric short circuit current of DFIG connected to distribution network [PDF]

E3S Web of Conferences, 2020
In view of the existing complex analytic calculations of DFIG short-circuit current are hardly applied in engineering projects, a practical calculation of asymmetric short-circuit current of DFIG is proposed.
Fu Pengwu, Yang Dongwen, He Zhi, Duan Zhenfeng, Wang Dengmei   +4 more
doaj   +3 more sources

Research on the Short-Circuit Characteristics of Trench-Type SiC Power MOSFETs Under Single and Repetitive Pulse Strikes [PDF]

Micromachines
This paper investigates the short-circuit characteristics of 1.2 kV symmetrical and asymmetrical trench-gate SiC MOSFETs. Based on the self-designed short-circuit test platform, single and repetitive short-circuit tests were carried out to characterize ...
Li Liu, Bo Pang, Siqiao Li, Yulu Zhen, Gangpeng Li   +4 more
doaj   +3 more sources

Overvoltage in the free phase of the stator winding in case of asymmetric short circuit implicit pole synchronous generator biaxial excitation [PDF]

E3S Web of Conferences, 2019
Reviewed and analyzed issues associated with overvoltage in the free phase winding of the stator with asymmetric short-circuit implicitly pole synchronous generator biaxial excitation, and compared the results of experimental measurements of the phase ...
Pirmatov Nurali, Toshev Sherzod
doaj   +2 more sources

An Asymmetric Short-Circuit Fault Ride-Through Strategy Providing Current Limiting and Continuous Voltage Supply for Three-Phase Three-Wire Stand-Alone Inverters

IEEE Access, 2020
The three-phase three-wire stand-alone inverter is required to have short-circuit fault ridethrough ability to achieve continuity of power supply. Generally the inverter works in current-controlled mode in symmetric short-circuit conditions, but voltage ...
Jian He, Peng Liu, Bangyin Liu, Shanxu Duan   +3 more
doaj   +2 more sources

Features of asymmetric short circuit currents calculation in the elplek software product

Energy and automation, 2021
In order to simplify the analysis of the electrical networks operation modes , specialized software tools for mathematical modeling of processes in them are used. There are many software products, but most of them are paid. To carry out research in complex power systems and obtain results in certain sections when performing practical and course work,
O. Gai, V. Bodunov, A. Zhiltsov
openaire   +2 more sources

Efficient Fault Detection of Rotor Minor Inter-Turn Short Circuit in Induction Machines Using Wavelet Transform and Empirical Mode Decomposition

Sensors, 2023
This paper introduces a novel approach for detecting inter-turn short-circuit faults in rotor windings using wavelet transformation and empirical mode decomposition.
Attiq Ur Rehman, Weidong Jiao, Jianfeng Sun, Muhammad Sohaib, Yonghua Jiang, Mahnoor Shahzadi, Muhammad Ijaz Khan   +6 more
doaj   +2 more sources

Characteristics Analysis of Field Winding Inter-Turn Short-Circuit Fault for Large-Capacity Synchronous Condenser Based on Stator Winding Asymmetric Branch Current

IEEE Access, 2023
The early inter-turn short-circuit fault of field winding (ISFF) occurs between adjacent strands in a single rotor slot, which is a significant safety hazard in the transient operation of the large-capacity synchronous condenser.
Weihao Wang, Xu Bian, Hao Huang, Yanping Liang   +3 more
doaj   +2 more sources

IGBT Junction Temperature Measurement Under Active-Short-Circuit and Locked-Rotor Modes in New Energy Vehicles

IEEE Access, 2020
Active-short-circuit and locked-rotor modes are common abnormal operations in new energy vehicles. The IGBT junction temperature measurement for these two operating conditions is a challenging problem due to the unexpected large current and the ...
Yuan Zhu, Mingkang Xiao, Xiezu Su, Ke Lu, Zhihong Wu, Gang Yang   +5 more
doaj   +2 more sources

Electromagnetic-thermal coupled modelling and analysis of inter-turn short-circuit faults of a permanent magnet alternator

The Journal of Engineering, 2019
This paper describes a computationally efficient model for predicting transient and steady-state behaviours of a permanent magnet alternator (PMA) connected to an asymmetric PWM rectifier and load in aerospace applications under healthy and fault ...
Liang Chen, Jiabin Wang, Zhigang Sun
doaj   +2 more sources

Increasing the Sensitivity of the Digital Relay Protection Against Turn-to-turn Short Circuits And Asymmetries In Wind Power Generators [PDF]

E3S Web of Conferences, 2020
The paper describes the implementation of neural networks for increasing the sensitivity of the digital relay protection against turn-to turn short circuits in the stator winding and asymmetric modes in wind power generators.
Nedelchev Nedelcho, Matsankov Misho
doaj   +1 more source