Power flow studies of a large practical power network with embedded facts devices using improved optimal multiplier newton-raphson method

2001 ◽  
Vol 11 (4) ◽  
pp. 247-256 ◽  
Author(s):  
Y. Xiao ◽  
Y. H. Song
Keyword(s):  
Power Flow ◽  
Power Network ◽  
Facts Devices ◽  
Newton Raphson ◽  
Optimal Multiplier ◽  
Raphson Method

scholarly journals Comparing Different Approaches for Solving Large Scale Power-Flow Problems With the Newton-Raphson Method

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 56604-56615
Author(s):  
Manolo D'orto ◽  
Svante Sjoblom ◽  
Lung Sheng Chien ◽  
Lilit Axner ◽  
Jing Gong
Keyword(s):  
Power Flow ◽  
Large Scale ◽  
Flow Problems ◽  
Newton Raphson ◽  
Raphson Method

Performance Analysis on Transmission Line for Improvement of Load Flow

2012 ◽  
Vol 433-440 ◽  
pp. 7208-7212
Author(s):  
Ya Min Su Hlaing ◽  
Ze Ya Aung
Keyword(s):  
Steady State ◽  
Power System ◽  
Transmission Line ◽  
Power Flow ◽  
Reactive Power ◽  
Load Flow ◽  
Electric Power System ◽  
Steady State Condition ◽  
Newton Raphson ◽  
Raphson Method

This thesis implements power flow application, Newton-Raphson method. The Newton-Raphson method is mainly employed in the solution of power flow problems. The network of Myanma electric power system is used as the reference case. The system network contains 90 buses and 106 brunches. The weak points are found in the network by using Newton-Raphson method. Bus 16, 17, 85 and 86 have the most weak bus voltages. The medium transmission line between bus 87 and bus 17 is compensated by using MATLAB program software. The transmission line is compensated with shunt reactors, series and shunt capacitors to improve transient and steady-state stability, more economical loading, and minimum voltage dip on load buses and to supply the requisite reactive power to maintain the receiving end voltage at a satisfactory level. The system performance is tested under steady-state condition. This paper investigates and improves the steady–state operation of Myanma Power System Network.

scholarly journals Voltage Instability Analysis Using Mipower

2020 ◽  
pp. 220-225
Keyword(s):  
Power Factor ◽  
Power Flow ◽  
Flow Analysis ◽  
Minimum Cost ◽  
Load Flow ◽  
Instability Analysis ◽  
Voltage Instability ◽  
Load Flow Analysis ◽  
Newton Raphson ◽  
Raphson Method

Load Flow Analysis helps in error free operation of power system and also useful in forecasting the required equipment for expansion of the system. By forecasting the magnitude of the supply required along with effects caused by single or multiple defects in the system and calculating the magnitude of errors, it is very easy to compensate them using various techniques with minimum cost and effort. It means before installation the favorable sites and size of the infrastructure used are determined to maintain the power factor in the system. Here Power Flow Analysis is performed using Newton Raphson method. This method is used in solving power flow studies of various number of busesunder various conditions. In any network there will be undesired rise or drop or dissipation of voltage. Voltage instability decreases the efficiency of the system and also damages the equipment used. Hence voltage instability analysis is performed and magnitude of the instability is calculated and compensated using various techniques. Here we performed Load Flow Analysis on a 5bus system and Voltage Instability Analysis is also performed to the same with necessary outputs.[7]

Novel Method of Ranking Line Outage Contingencies from Network Loadability Limit Point of View

2005 ◽  
Vol 3 (1) ◽  
Author(s):  
P. R. Bijwe ◽  
M. Hanmandlu ◽  
V. N. Pande ◽  
S. M. Kelapure
Keyword(s):  
Efficient Method ◽  
Limit Point ◽  
Power Flow ◽  
Salient Feature ◽  
Point Of View ◽  
Continuation Power Flow ◽  
Sample Test ◽  
Novel Method ◽  
Newton Raphson ◽  
Optimal Multiplier

This paper presents novel, simple and efficient method for ranking line outage contingencies from network loadability limit considerations. The method follows conventional optimal multiplier based Newton Raphson power flow. The simulation of line outage contingencies is carried out near pre-contingency critical loading using the above power flow. A salient feature of the method is the use of the pre-contingency power flow Jacobian factors for simulation of all contingencies. Results for two sample test systems have been obtained with the new method and continuation power flow method in order to verify the potential of the former method for practical use.

The Analysis of Power System Network Loss

2014 ◽  
Vol 521 ◽  
pp. 196-199
Author(s):  
Li Jun Qin ◽  
Chao Xiong
Keyword(s):  
Power System ◽  
Decomposition Method ◽  
Power Grid ◽  
Generation Mechanism ◽  
Power Network ◽  
Grid Network ◽  
Seidel Method ◽  
Newton Raphson ◽  
Raphson Method

This paper mainly studies the generation mechanism of the power grid network loss and discusses Gauss - Seidel method, Newton-Raphson method,and PQ decomposition method of power network loss.

Effect of Advanced Static VAR Compensator on Control of Power System Load Shedding

2011 ◽  
Vol 403-408 ◽  
pp. 4867-4872
Author(s):  
B. Venkateswara Rao ◽  
G. V. Nagesh Kumar ◽  
R. V. S. Lakshmi Kumari ◽  
M. Vinay Kumar
Keyword(s):  
Power System ◽  
Power Flow ◽  
Test System ◽  
Load Shedding ◽  
System Stability ◽  
Static Var Compensator ◽  
System Load ◽  
Flow Solution ◽  
Newton Raphson ◽  
Raphson Method

This paper investigates the effect of Static VAR Compensator (SVC) on power system load shedding. SVC is mainly used in power system stability improvement. This paper proposes a new use of SVC to reduce load shedding. An algorithm of Newton Raphson method (NR) to reduce the load shedding for installing SVC in the system is proposed in this paper. 5 bus test system example is used to demonstrate the effect on load shedding. The test results show that the effect of SVC is significant, in this Static VAR compensator (SVC) is incorporated in Newton Raphson method in which Power Flow Solution is a solution of the network under steady state conditions subjected to certain constraints under which the system operates. The power flow solution gives the nodal voltages and phase angles given a set of power injections at buses and specified voltages at a few, the model of SVC i.e. SVC Susceptance model is discussed. It is also shown that the power system losses are decreased after incorporating the SVC in this N-R method. The results are generated for 5-Bus system. By incorporating the SVC the amount of load shedding is reduced to get the voltages in their limits.

An Efficient Power Flow Algorithm for Distribution Systems with Polynomial Load

2002 ◽  
Vol 39 (4) ◽  
pp. 371-386 ◽  
Author(s):  
Jianwei Liu ◽  
M. M. A. Salama ◽  
R. R. Mansour
Keyword(s):  
Power Flow ◽  
Distribution Systems ◽  
Test Results ◽  
Load Model ◽  
Voltage Ratio ◽  
Flow Algorithm ◽  
Convergence Control ◽  
Newton Raphson ◽  
Efficient Power ◽  
Raphson Method

A new, efficient power flow algorithm for complex distribution systems is presented. Voltage ratio is used for convergence control. This method has fast convergence ability for the polynomial load model for which the traditional Newton-Raphson method is usually not adaptable. Test results show the robustness of the proposed method.

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