A Study on Bus Voltage Sag Considering the Impedance of SFCL and Fault Conditions in Power Distribution Systems

2013 ◽  
Vol 23 (3) ◽  
pp. 5601604-5601604 ◽  
Author(s):  
Jin-Seok Kim ◽  
Sung-Hun Lim ◽  
Jae-Chul Kim ◽  
Jong-Fil Moon
Keyword(s):  
Power Distribution ◽  
Distribution Systems ◽  
Voltage Sag ◽  
Power Distribution Systems ◽  
Bus Voltage

scholarly journals Power Flow Analysis of Weakly Meshed Distribution Network Including DG

2018 ◽  
Vol 8 (5) ◽  
pp. 3398-3404 ◽  
Author(s):  
A. Al-Sakkaf ◽  
M. AlMuhaini
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Power Flow ◽  
Distribution Systems ◽  
Flow Analysis ◽  
Load Flow ◽  
Power Distribution Systems ◽  
Power Flow Analysis ◽  
Bus Voltage ◽  
Flow Study

Power flow is one of the essential studies in power system operation and planning. All steady-state parameters for power distribution systems, such as bus voltage magnitudes, angles, power flows, and power losses, can be calculated by conducting power flow analysis. Distribution system features differ from those of transmission system, rendering conventional load flow algorithms inapplicable. In this paper, three distribution power flow techniques are presented and tested to evaluate their performance when applied to a networked distribution system including distributed generation (DG). These are the distribution load flow (DLF) matrix, the enhanced Newton Raphson (ENR), and the robust decoupled (RD) method. IEEE 33-bus system is adopted for implementing the above methods. Radial and weakly meshed configurations are applied to the tested system with DG inclusion to investigate their influence on the power flow study findings.

scholarly journals Voltage sag state estimation based on -normminimization methods in radial electric power distribution systems

2018 ◽  
Vol 17 (2) ◽  
pp. 309-318 ◽  
Author(s):  
Jairo Blanco-Solano ◽  
◽  
Nelson Kagan ◽  
Carlos Frederico M. Almeida ◽  
Johann F. Petit-Suárez ◽  
...  
Keyword(s):  
State Estimation ◽  
Electric Power ◽  
Power Distribution ◽  
Distribution Systems ◽  
Voltage Sag ◽  
Power Distribution Systems ◽  
Electric Power Distribution

Fault Location in Distribution Systems Considering the Non-Liner Profile Characteristic of Voltage Sag on the Bus

2011 ◽  
Vol 354-355 ◽  
pp. 1088-1092
Author(s):  
Tian Wen Zheng ◽  
Jian Wen Yang ◽  
Xian Yong Xiao ◽  
Ying Wang
Keyword(s):  
Distributed Generation ◽  
Power Distribution ◽  
Distribution Systems ◽  
Fault Location ◽  
Voltage Sag ◽  
Power Distribution Systems ◽  
Fault Resistance ◽  
Profile Characteristic ◽  
Minimal Deviation ◽  
The Relationship

The bus will experience different voltage sag when fault occurs at different location. Based on the non-liner profile characteristic of voltage sag measured at the bus, the paper proposes a new fault location method. Firstly, it obtains the analytical expression of each section based on the relationship between voltage sag and fault location. Then calculate the fault distance using chord secant method and identify the faulted section through the minimal deviation of fault distance. The combined two results of fault distance and faulted section make fault location accurately. It overcomes the difficulty of radial power distribution systems fault location. Through simulating for the IEEE 13 node test feeder with different faults, including various fault resistance, loading variation and the connected distributed generation, it proves the method’s accuracy and effectiveness.

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