scholarly journals SIMULASI ALIRAN DAYA PADA PEMBANGKIT LISTRIK TENAGA MESIN GAS (PLTMG) BADAS UNTUK SISTEM KELISTRIKAN SUMBAWA BESAR MENGGUNAKAN SOFTWARE ETAP 16

2019 ◽  
Vol 1 (2) ◽  
pp. 111-116
Author(s):  
Indra Darmawan ◽  
Fuad Abdurrahman Rafif ◽  
Addien Wahyu Wiratama
Keyword(s):  
Power Flow ◽  
Electrical Energy ◽  
Electric Power System ◽  
Integrated System ◽  
Operating Conditions ◽  
Electrical System ◽  
Power Flow Calculation ◽  
Newton Raphson ◽  
Raphson Method ◽  
Electrical Energy Generation

Electric power system is a process of electrical energy generation to dispense to users. A well-integrated system provides quality assurance for system reliability. Analysis is conducted to minimize dispensing losses. The electrical system of Sumbawa Besar is currently in the process of upgrading 150 KV transmission distribution capacity with PLTMG BADAS as the largest generation center. The research was conducted by analyzing the power flow on PLTMG BADAS for the electrical system of Sumbawa Besar which was reviewed on 20 KV bus system, and by simulating using ETAP 16 software . The research method is done with data derived from Sumbawa's PLN and analysis of the power flow calculation using the method Newton-Raphson precision value 0.0001. The simulation is performed on three generation scenarios, namely: 1) Operation 1 PLTMG engine, 2) operation 2 PLTMG engines, 3) operation of the entire PLTMG machine. All three scenarios are done under normal operating conditions. Simulated results show that the analysis of power flows by Newton-Raphson method generates 2 iterations in each scenario, and the following parameters are obtained: 1) average of the highest voltage value in Scenario 1 OF 20.43 KV With phase angle-14.3, 2) Total active power – highest reactive in Scenario 2 of 44.475 MW and 9.557 MVAR, 3) Scenario 1 has the lowest power loss of 2.634 MW and 5.168 MVAR and voltage fall by 2.275%.

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 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

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]

An on Line Method of the Steady-State Data Acquisition

2013 ◽  
Vol 385-386 ◽  
pp. 668-674
Author(s):  
Jia Yang ◽  
Hai Bao ◽  
Ling Wang ◽  
Gang Liu
Keyword(s):  
Steady State ◽  
Power System ◽  
Real Time ◽  
Power Flow ◽  
Measured Data ◽  
Electric Power System ◽  
Power Flow Calculation ◽  
Flow Calculation ◽  
State Data ◽  
The Real

Steady-state power flow calculation belongs to power system steady-state analysis, and the data used in calculation should be steady-state data. However, the existing SCADA system hasnt distinguished the transient data from the steady-state data. The real-time measured data reflect the dynamic electric power system. It is the right reason for not all of the real-time measured power can be used for power flow calculation. In another word, it causes the matching problem between measured data and power flow calculations. Based on the current situation of information collection system, the characteristics of the measured data had been analyzed in this paper. And an effective acquisition method for steady-state measured data is proposed on the theoretical basis of the law of large numbers. It uses the average value of the measured data that in the same load state to approximate the steady-state true value in one period. And the steady-state data can be used in power flow calculation. The simulation results show that the method proposed in this paper ensures the accuracy and reliability of power flow calculation.

scholarly journals Análise de fluxo de potência através de métodos numéricos

2019 ◽  
Vol 40 ◽  
pp. 69
Author(s):  
Bruno Pereira do Nascimento ◽  
Caison Rodrigues Ramos ◽  
Aline Brum Loreto
Keyword(s):  
Numerical Methods ◽  
Power Systems ◽  
Transmission Lines ◽  
Power Flow ◽  
Flow Analysis ◽  
Electrical Energy ◽  
Basic Function ◽  
Electric Power System ◽  
Power Flow Analysis ◽  
Definition Of

The basic function of the Electric Power System is to supply electrical energy with quality and when requested. For this to be possible some analysis of the system is required, among them Power Flow Analysis. This analysis is important for the delineation of the power systems, as well as in the definition of the best conditions of operation, control and supervision of the existing systems. The system is modeled as follows: Generators, Loads, Reactors and Capacitors are connected between any node and the ground node, since the transmission lines and transformers are connected between any two nodes. Thus, the admittance matrix of the system will be generated through nodal analysis that will be solved by numerical methods. One of the objectives of this work aims to perform the power flow analysis of a system with the aid of numerical methods. Another objective is as well as to verify the accuracy of the results, with solutions obtained by the methods of Gauss Elimination, LU Factoration, Gauss Seidel and Crout Method, implemented in C language. The analysis of the accuracy of the results occurred through the relative error in comparison to the results obtained by MatLab software.

An Application of Improved Newton-Ralph Method in Microgrid Power Flow Calculation

2014 ◽  
Vol 1049-1050 ◽  
pp. 1448-1453
Author(s):  
Han Ping Zhang
Keyword(s):  
Distributed Generation ◽  
Calculation Method ◽  
Power Loss ◽  
Power Flow ◽  
Calculation Model ◽  
Power Flow Calculation ◽  
Flow Calculation ◽  
Newton Raphson ◽  
Simulation Results ◽  
Unified Method

The traditional methods of power flow calculation are no longer applicable for microgrid for the reason that there are many kinds of DG(distributed generation) in it, the mathematical models of these DGs are different from traditional generations. An unified method is proposed to improve Newton-Raphson power flow calculation method for the bus types of PQ(V) and PI after analyzing and establishing power flow calculation model for each kind of DG. It is proved that this method is correct by comparing the results with the simulation results of DigSILENT. The influences on voltage and power loss in microggirds brought by DGs are studied at last.

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