scholarly journals Simulation study on power system short circuit fault based on EMTP

2021 ◽  
Vol 2087 (1) ◽  
pp. 012079
Author(s):  
Lifang Wang ◽  
Dewan Zhao ◽  
Yue Huang ◽  
Yangqing Li ◽  
Yan Wang
Keyword(s):  
Power System ◽  
System Simulation ◽  
Short Circuit ◽  
Power System Simulation ◽  
Simulation Research ◽  
Actual Equipment ◽  
Three Phase ◽  
Electromagnetic Transient Simulation ◽  
Study Power ◽  
Short Circuit Fault

Abstract Electromagnetic transient simulation program EMTP is a common simulation commercial software in power system. It can effectively analyze and study power system. In this paper, EMTP is used to build the power system simulation model, and a variety of short-circuit faults in the power system are simulated and analyzed. The results show that the results accord with the actual theory, and the waveform can accurately and intuitively investigate the dynamic characteristics of power system faults. In addition, through the simulation comparison and analysis between different faults, it can be seen that the three-phase short-circuit fault is the most serious fault in the power system, which should be avoided in the actual production and life. This shows that EMTP is a powerful tool for power system simulation research, and provides a reference for the actual equipment selection requirements of the project.

Modeling Guidelines and a Benchmark for Power System Simulation Studies of Three-Phase Single-Stage Photovoltaic Systems

2011 ◽  
Vol 26 (2) ◽  
pp. 1247-1264 ◽  
Author(s):  
Amirnaser Yazdani ◽  
Anna Rita Di Fazio ◽  
Hamidreza Ghoddami ◽  
Mario Russo ◽  
Mehrdad Kazerani ◽  
...  
Keyword(s):  
Power System ◽  
System Simulation ◽  
Single Stage ◽  
Photovoltaic Systems ◽  
Simulation Studies ◽  
Power System Simulation ◽  
Three Phase

scholarly journals Advantage to Short Circuit Current of Calculation on Power System by the MVA Method

2020 ◽  
pp. 28-36
Author(s):  
Ming-Jong Lin
Keyword(s):  
Power System ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Parallel Method ◽  
Basic Principles ◽  
Actual Equipment ◽  
Traditional Algorithm ◽  
Short Circuits ◽  
Simplified Procedures ◽  
Short Circuit Fault

The short circuit current of the equipment must be carefully calculated. If it is not effective to isolate the fault point, while the system is abnormal. That will leads to prolonged fault time and the instability of power system. The calculation process is very so complicated that must to establish any capacity of equipment on system. This article will introduce method of the traditional algorithm beginning. Next, to establish the basic principles of simplified procedures such as the capacity of two parallel devices are considered as a series method (plus), but the capacity of two series devices are considered as a parallel method to calculate. Finally, to calculate the fault short-circuits current based on the actual equipment capacity on the power system. Another technique is to transform the structure of transmission line from △ to Y so that it easy to simplify for calculation. It is proved to be a simple and easy to understand what method for short circuit fault current of calculation. The method can provide accurate and effective calculation of system short circuit capacity and current at each equipment point, so that designer can make appropriate specifications in design and procurement to avoid wasteful investment.

Power System Simulation

1977 ◽  
Vol 10 (1) ◽  
pp. 374-378
Author(s):  
J.A. Dembecki ◽  
B.D. Spalding
Keyword(s):  
Power System ◽  
System Simulation ◽  
Power System Simulation
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