scholarly journals Eliminate Excessive In-Plant Distribution System Voltage Drops

2005 ◽  
Author(s):  
Keyword(s):  
Distribution System ◽  
Plant Distribution ◽  
Voltage Drops

scholarly journals Estimation of Phase Angle Jump (PAJ) for Different Types of Faults and Unbalancing in Distribution System

2018 ◽  
Vol 7 (4.38) ◽  
pp. 23 ◽  
Author(s):  
Muhammad Fawad Shaikh ◽  
Madad Ali Shah ◽  
Sunny Katyara ◽  
Bhawani Shankar Chowdhry
Keyword(s):  
Phase Angle ◽  
Power Supply ◽  
Distribution System ◽  
Research Work ◽  
Voltage Sag ◽  
Voltage Unbalance ◽  
Voltage Drops ◽  
Different Types ◽  
Zero Sequence ◽  
Types Of Faults

Voltage sag caused by the faults in the power system has serious power quality issues and sometimes leads to interruption of power supply. The characteristics of voltage sag are its magnitude, time and phase angle jump (PAJ). This paper represents the estimation of phase angle jump (PAJ) when different types of faults are occurred in distribution system. Since the unbalancing is one of the major issues in distribution system that increases the zero sequence currents, over heats the distribution transformer, causes huge voltage drops in distributor etc. Therefore, the method used in this paper shows the PAJ when distributor is unbalance due to uneven loading or the line parameters of the distributor are unsymmetrical. Simple radial system is used to analyze the PAJ caused by the different types of faults and unbalancing. Different comparisons are made that are associated with PAJ such as PAJ vs fault impedance, zero sequence current and percentage of voltage unbalance. The research work is performed on MATLAB/SIMULINK to analyze the real time results.  

scholarly journals RECONFIGURATION OF DISTRIBUTION SYSTEMS FOR LOSS REDUCTION USING A GENETIC ALGORITHM

2012 ◽  
Vol 15 (2) ◽  
pp. 17-26
Author(s):  
Loc Dac Ho
Keyword(s):  
Genetic Algorithm ◽  
Power Systems ◽  
Distribution System ◽  
Power Loss ◽  
Power Plants ◽  
Distribution Systems ◽  
Optimal Configuration ◽  
Loss Reduction ◽  
Voltage Drops ◽  
Simulation Results

A distribution system is one of the most important parts of power systems which show a connection between power plants and loads. Each connection has an economic affection in transferring power from sources to loads. Power companies expect to find out an optimal configuration with great benefits which is the lowest power loss. This paper proposes an application of a genetic algorithm for finding out an optimal configuration which has the lowest power loss with constrains such as: unisolated loads, limited powers in lines and transformers and lowest voltage drops. The effectiveness of the proposal is confirmed through simulation results on power systems [3] as well as comparisons with other results of [1], [3], [6], [8]

Effect of installation of distributed generation at different points in the distribution system on voltage drops and power losses

2021 ◽  
Author(s):  
Arnawan Hasibuan ◽  
Muzamir Isa ◽  
Mohd Irwan Yusoff ◽  
Siti Rafidah Abdul Rahim ◽  
I. Made Ari Nrartha
Keyword(s):  
Distributed Generation ◽  
Distribution System ◽  
Power Losses ◽  
Voltage Drops

scholarly journals A comparative study on AC/DC analysis of an operational low voltage distribution system

2021 ◽  
Vol 10 (3) ◽  
pp. 193
Author(s):  
Cihan Katar ◽  
Cengiz Polat Uzunoglu
Keyword(s):  
Distribution System ◽  
Distribution Systems ◽  
Low Voltage ◽  
Solar Panels ◽  
Power Losses ◽  
Voltage Distribution ◽  
Electrical Grid ◽  
Safety Regulations ◽  
Voltage Drops ◽  
Novel Approach

In the near future, the digitalizing world will continue to improve and the need for DC based devices will be increased beyond doubt. Today’s electrical grid is strictly dependent on AC-DC rectifiers. Each conversion process means additional power losses and signal quality deteriorations for the network. In addition, networks which are fed by batteries and renewable sources such as solar panels, and wind turbines are suffering from conversion-based power losses. In this respect, the idea of switching to DC on the low voltage side of the networks has become an intriguing subject. In this study, the applicability and efficiency of the low voltage direct current (LVDC) concept for low voltage distribution systems is discussed and a sample LVDC distribution system is analyzed. In this operational residential application electrical transient analyzer program (ETAP) is employed for comparison of different voltage levels such as 110 V<sub>DC</sub>, 250 V<sub>DC</sub>, 320 V<sub>DC</sub> and conventional 220/380 V<sub>AC</sub>. As a novel approach different DC voltage levels are compared with typical AC system in detail. Comparative analysis is conducted for safety regulations, voltage drops, current carrying capacities, power consumption and harmonic calculation of the proposed system. In this respect applicability, possible drawbacks and future aspects of LVDC systems are interpreted.

scholarly journals Análise de Desequilíbrio de Tensão para Sistema de Distribuição de Energia Elétrica não Convencional

2021 ◽  
Author(s):  
EDUARDO GIULIANI ◽  
AéCIO DE LIMA OLIVEIRA ◽  
GHENDY CARDOSO JUNIOR ◽  
GUSTAVO MARCHESAN ◽  
LEONARDO DE FREITAS SILVEIRA ◽  
...  
Keyword(s):  
Distribution System ◽  
Voltage Drop ◽  
Accurate Method ◽  
Phase System ◽  
Radial Distribution System ◽  
Medium Voltage ◽  
The Earth ◽  
Voltage Drops ◽  
Three Phase ◽  
Return Path

This work presents an accurate method for the calculation of the compensating impedances for an uncoventional three-phase rural distribution network using two overhead wires and the ground for energy transmission. This system is referred as T2F scheme, which is an inherently unsymmetrical 3-phase system. The paper deals with the compensating method using a series impedance in the earth return path and a shunt capacitance connected between the two wires. A simulation study in MATLAB/Simulink was conducted in a medium voltage radial distribution system to verify a need of compesating impedances by analysing of unbalaced voltages and voltage drop. This study shows that the system is capable of operating within the unbalancing factor standards and voltage drops limits, as seen in the simulations results.

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