Results 291 to 300 of about 501,948 (340)

Research on Short-Circuit Force of Distribution Transformer Based on Short-Circuit Test by Single-Phase Power and Three-phase Power

2021 3rd Asia Energy and Electrical Engineering Symposium (AEEES), 2021
Distribution transformer is one of the important electrical equipment in power grid. The working state of distribution transformer directly affects the safe and stable operation of power grid. When distribution transformer during short circuit, the short-circuit force will cause distribution transformer damage.
Xiaoxiao Luo, Qianbo Xiao, Qian Wang, Wenyan Gan, Baojia Deng, Chaohong Fang   +5 more
openaire   +1 more source

Study of Gray Code Implementation for Single Phase Inverter Short Circuit Protection

2018 International Conference on Sustainable Energy Engineering and Application (ICSEEA), 2018
Inan electronic circuit, short circuit protection can be done by using passive and active method. The active method is usually using current sensor and/or thermo sensor while the passive method is using trigger design for power circuit such dead time delay trigger or digitally interlock trigger for high side and low side.
Kristian Ismail, null Amin, Agus Risdiyanto, Noviadi Arief Rachman   +3 more
openaire   +1 more source

Probabilistic Analysis on the Characteristics of Short Circuit in Single-phase Grounding Fault

2019 IEEE Sustainable Power and Energy Conference (iSPEC), 2019
In combination with short circuit simulation and wavelet packet theory, the corresponding probabilistic analysis on the characteristics of single-phase grounding faults of distribution network under stochastic context is studied in this paper. There are two pieces of major research works: firstly, the Latin hypercube sampling (LHS) method is adopted to
Hui Yin, Wenbo Fan, Changkai Shi, Shilei Guan, Jinwei Fu, Haotian Gao, Tong Shu, Junjie Tang   +7 more
openaire   +1 more source

Behaviour of single-phase self-excited induction generator during short-circuit at terminals

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2018
Purpose The purpose of this paper is to present analysis of short-circuit transients in a single-phase self-excited induction generator (SP-SEIG) for different capacitor topologies. Design/methodology/approach The paper presents field analysis of ...
Krzysztof Makowski, Aleksander Leicht
openaire   +1 more source

Two-Step Optimization for Limiting Three-Phase and Single-Phase Short Circuit Current

2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2), 2018
With the continuously increasing capacity of modern power system, the problem of excessive short circuit current is becoming more and more severe. Not only three-phase short circuit current (TSCC), but also single-phase short circuit current (SSCC) has exceeded the upper limit.
Dong Yang, Bing Zhang, Linlin Ma, Luhua Xing, Cheng Wu   +4 more
openaire   +1 more source

An Improved Method of Incorporating Mutual Couplings in Single-Phase Short-Circuit Calculations

IEEE Transactions on Power Apparatus and Systems, 1970
A method of including mutual couplings in the zero- sequence Z matrix described by Riaz [1] has been adapted for use in single-phase-to-ground short-circuit studies of large power systems. The algorithm of this extension is detailed, and the computational advantages over earlier methods [2]?[4] are pointed out.
J. O. Storry, Homer E. Brown
openaire   +1 more source

Short circuit fault diagnosis in switches of a single-phase full-bridge inverter

2013 Brazilian Power Electronics Conference, 2013
This paper presents a method of short circuit fault diagnosis in switches of a single-phase full-bridge inverter, which feeds an inductive load. To diagnose failures, a current limiter and measurements of the variables were used: control voltages, currents in switches and the load current.
Andre Barros de Mello Oliveira, Robson Luiz Moreno, Enio Roberto Ribeiro   +2 more
openaire   +1 more source

FE-Based Modeling of Single-Phase Distribution Transformers With Winding Short Circuit Faults

IEEE Transactions on Magnetics, 2007
This paper presents a fast and accurate phase variable model of single-phase distribution transformers with internal winding short circuit faults. The flux linkages of windings (including the winding formed with the shorted winding turns) are used as the phase variables.
S. Liu, Z. Liu, O. A. Mohammed
openaire   +1 more source

Digital diagnosis of short-circuit failures and reconfiguration of a single-phase VSI

2017 IEEE Southern Power Electronics Conference (SPEC), 2017
This paper presents a short circuit (SC) fault diagnosis (FD) method for switches of a single-phase voltage source inverter (VSI) with fault-tolerant topology. From the diagnostic variables, the diagnostic rules are established through a digital procedure, and, consequently, the diagnostic method is performed with digital logic circuits.
Andre B. M. Oliveira, Marcelo G. Simoes, Robson L. Moreno, Enio R. Ribeiro   +3 more
openaire   +1 more source

Research on Short-Circuit Force of Transformer Winding with Single-Phase Short-Circuit and Three-Phase Short-Circuit

2021 11th International Conference on Power and Energy Systems (ICPES), 2021
Xiaoxiao Luo, Qianbo Xiao, Qian Wang, Wenyan Gan, Baojia Deng, Zhiping Sheng   +5 more
openaire   +1 more source