scholarly journals Determination of Bus Voltages, Real and Reactive Power Losses in the Northern Nigeria 330Kv Network Using Power System Analysis Tool (PSAT)

2016 ◽  
Vol 4 (5) ◽  
pp. 35
Author(s):  
Ishaku Bello
Keyword(s):  
Power System ◽  
System Analysis ◽  
Reactive Power ◽  
Analysis Tool ◽  
Northern Nigeria ◽  
Power Losses ◽  
Power System Analysis

scholarly journals A Novel Hybrid Particle Swarm- Multiverse Optimization based Voltage Stability Improvement in IEEE 57 Bus System

2018 ◽  
Vol 7 (2.24) ◽  
pp. 381
Author(s):  
P K.Dhal ◽  
K Ramash Kumar
Keyword(s):  
Power System ◽  
Hybrid Algorithm ◽  
Voltage Stability ◽  
System Analysis ◽  
Test System ◽  
Analysis Tool ◽  
Power System Analysis ◽  
Sudden Loading ◽  
And Control ◽  
Bus System

The major role of power system is voltage stability. It is required to plan properly and smooth operation and control. It presents a new approach of voltage stability improvement in IEEE 57 bus system using hybrid algorithm. The hybrid algorithm (PSO-MVO) is combination of PSO which is used for exploitation and MVO used for exploration. It is used in an uncertain environment. The FACTS device as STATCOM is connected in IEEE 57 test system to check for event of voltage stability improvement through power system analysis tool (PSAT) software. Once the ability of system goes through sudden loading, its stability gets affected. It desires compensation to boost voltage from disturbances. The varied operative condition while not used STATCOM in the system, used with STATCOM tuned by PSO-MVO algorithm are measured judge the performance of the projected system. The hybrid PSO-MVO technique is implemented in this paper to solve the proposed problem. The simulation results are obtained by PSAT software for 57 IEEE bus systems. The hybrid algorithm validates its effectiveness compare to individual PSO and MVO algorithm.     

scholarly journals Regulation of Voltage and Reactive Power Based on the Control of Leading Phase Operation of Generator

2014 ◽  
Vol 8 (1) ◽  
pp. 522-526
Author(s):  
Wei Yan-fang ◽  
Zheng Zheng ◽  
Sun Yan-zhou ◽  
Zhang Tao ◽  
Si Ji-ka ◽  
...  
Keyword(s):  
Power System ◽  
Software Package ◽  
System Analysis ◽  
Reactive Power ◽  
Short Circuit ◽  
Voltage Regulation ◽  
Analysis Software ◽  
Power System Analysis ◽  
Actual Operation ◽  
Short Circuit Fault

Leading phase operation of generator is an effective method for the control and regulation of voltage and reactive power of power system. The ability of voltage regulation for key buses by control of generator is presented in this paper. The PSD-BPA software - Power System Analysis Software Package (PSD-BPA) is introduced firstly. The management database for leading phase operation of generator is discussed. From the lagging phase operation to leading phase operation of generator, the change curves of voltage for main 500kV bus and 220kV bus are analyzed. The sensitivity on voltage regulation of each generator of leading phase operation is given. Based on the analysis of short circuit fault of power plant, the limit output power of leading phase operation of multi-generators is proposed. The leading phase operation of generator has many advantages, such as easy to operate, simple and feasible implement, and the actual operation is safe and reliable. The technique was worthy to be widely used.

scholarly journals SIMULASI ALIRAN DAYA PADA SISTEM TENAGA LISTRIK DI GARDU INDUK GANDUL PT. PLN (PERSERO) MENGGUNAKAN SOFTWARE MATLAB POWER SYSTEM ANALYSIS TOOLBOX (PSAT) 2.1.7 DENGAN METODE NEWTON RAPHSON

2020 ◽  
Vol 5 (1) ◽  
pp. 14-20
Author(s):  
Endiansyah Pradana ◽  
Rif’an Muhammad ◽  
Imam Arif Raharjo
Keyword(s):  
Power System ◽  
Power Flow ◽  
System Analysis ◽  
Reactive Power ◽  
Flow Simulation ◽  
Numerical Data ◽  
Small Error ◽  
Active Power ◽  
Simulation Software ◽  
Power System Analysis

ABSTRACT This study aims to determine the results of the simulation of the power flow transformer 4 10 buses in the Gandul Substation of PT. PLN (Persero) with MATLAB Power System Analysis Toolbox (PSAT) 2.1.7. To find out the results of a comparison of the simulation of the flow of power 4 transformer 10 buses in the Gandul substation PT. PLN (Persero) MATLAB PSAT 2.1.7 software with ETAP software 12.6.Data analysis technique used in this study is quantitative descriptive analysis method. Descriptive will only describe the state of a symptom that has been recorded and then processed according to its function. Descriptive statistics are statistics that have the task of organizing and analyzing numerical data, in order to provide a regular, concise and clear picture of a phenomenon, event or situation, so that certain understandings or meanings can be drawn.The results of research on power flow at the Gandul substation PT. PLN (Persero) uses MATLAB Power System Analysis Toolbox (PSAT) 2.1.7 simulation of power flow with MATLAB PSAT 2.1.7 software completed at Power Flow Completed 0.066 s with a number of 2 iterations, iteration 1 shows Maximum Convergency Error 0.0011257 and iteration 2 shows Maximum Convergency Error 1.2621e-06. While the result of the simulation software ETAP 12.6 the number of oterations completed in iteration 3.The results of power flow simulation software MATLAB PSAT 2.1.7 and ETAP 12.6 on Active Power (MW) have a fairly big error, which is 11.5%. The largest error value generated is 11.5%, namely the feeder Sheen and Niece. Then, the results of power flow simulation software MATLAB PSAT 2.1.7 and ETAP 12.6 on Reactive Power (MVar) have a fairly big error, which is 24.4%. The largest error value generated is 24.4%, which is found in Canggah feeders. And the results of power flow simulation software MATLAB PSAT 2.1.7 and ETAP 12.6 against voltage (kV) have a fairly small error. Almost every feeder has the same error from the Rainbow feeder to the niece.The conclusion in this study is the results of power flow simulation with MATLAB Power System Analysis Toolbox 2.1.7 show the value of Active Power of 15.1362 MW and Reactive Power of 10.0349 MVar. Meanwhile, the results of power flow simulation with ETAP 12.6 software show the value of Active Power of 15.3720 MW and Reactive Power of 10.3510 MVar.   ABSTRAK Penelitian ini bertujuan Untuk mengetahui hasil dari simulasi aliran daya Trafo 4 10 bus di Gardu Induk Gandul PT. PLN (Persero) dengan software MATLAB Power System Analysis Toolbox (PSAT) 2.1.7. Untuk mengetahui hasil perbandingan simulasi aliran daya Trafo 4 10 bus di Gardu Induk Gandul PT. PLN (Persero) software MATLAB PSAT 2.1.7 dengan software ETAP 12.6. Teknik analisis data yang digunakan pada penelitian ini adalah metode analisis desktriptif kuantitatif. Deskriptif hanya akan mendeskripsikan keadaan suatu gejala yang telah direkam kemudian diolah sesuai dengan fungsinya. Statistik deskriptif adalah statistik yang mempunyai tugas mengorganisasi dan menganalisa data angka, agar dapat memberikan gambaran secara teratur, ringkas dan jelas, mengenai suatu gejala, peristiwa atau keadaan, sehingga dapat ditarik pengertian atau makna tertentu. Hasil penelitian aliran daya di gardu induk Gandul PT. PLN (Persero) menggunakan software MATLAB Power System Analysis Toolbox (PSAT) 2.1.7 simulasi aliran daya dengan software MATLAB PSAT 2.1.7 selesai pada Power Flow Completed 0.066 s dengan jumlah 2 iterasi, iterasi 1 menunjukkan Maximum Convergency Error 0.0011257 dan iterasi 2 menunjukkan Maximum Convergency Error 1.2621e-06. Sedangkan hasil simulasi software ETAP 12.6 jumlah iterasi selesai pada iterasi 3. Hasil simulasi aliran daya software MATLAB PSAT 2.1.7 dan ETAP 12.6 pada Daya Aktif (MW) mempunyai error yang cukup besar, yaitu 11.5%. Nilai error terbesar yang dihasilkan sebesar 11.5% yaitu pada penyulang Kemilau dan Keponakan. Lalu, hasil simulasi aliran daya software MATLAB PSAT 2.1.7 dan ETAP 12.6 pada Daya Reaktif (MVar) mempunyai error yang cukup besar, yaitu 24.4%. Nilai error terbesar yang dihasilkan sebesar 24.4%, yaitu terdapat pada penyulang Keponakan. Dan hasil simulasi aliran daya software MATLAB PSAT 2.1.7 dan ETAP 12.6 terhadap tegangan (kV) mempunyai error yang cukup kecil. Hampir setiap penyulang mempunyai error yang sama dari penyulang Pelangi hingga Keponakan. Kesimpulan dalam penelitian ini yaitu Hasil simulasi aliran daya dengan software MATLAB Power System Analysis Toolbox 2.1.7 menunjukkan nilai Daya Aktif sebesar 15.1362 MW dan Daya Reaktif sebesar 10.0349 MVar. Sedangkan, hasil simulasi aliran daya dengan software ETAP 12.6 menunjukkan nilai Daya Aktif sebesar 15.3720 MW dan Daya Reaktif sebesar 10.3510 MVar.

scholarly journals Development of A Loss Minimization Based Operation Strategy for Embedded BTB VSC HVDC

2019 ◽  
Vol 9 (11) ◽  
pp. 2234 ◽  
Author(s):  
Jaehyeong Lee ◽  
Minhan Yoon ◽  
Sungchul Hwang ◽  
Soseul Jeong ◽  
Seungmin Jung ◽  
...  
Keyword(s):  
Power System ◽  
Direct Current ◽  
System Analysis ◽  
Reactive Power ◽  
Operating Point ◽  
Analysis Tool ◽  
Distribution Factor ◽  
Loss Minimization ◽  
High Voltage Direct Current ◽  
Voltage Sourced Converter

Recently, there have been many cases in which direct current (DC) facilities have been placed in alternating current (AC) systems for various reasons. In particular, in Korea, studies are being conducted to install a back-to-back (BTB) voltage-sourced converter (VSC) high-voltage direct current (HVDC) to solve the fault current problem of the meshed system, and discussions on how to operate it have been made accordingly. It is possible to provide grid services such as minimizing grid loss by changing the HVDC operating point, but it also may violate reliability standards without proper HVDC operation according to the system condition. Especially, unlike the AC system, DC may adversely affect the AC system because the operating point does not change even after a disturbance has occurred, so strategies to change the operating point after the contingency are required. In this paper, a method for finding the operating point of embedded HVDC that minimizes losses within the range of compliance with the reliability criterion is proposed. We use the Power Transfer Distribution Factor (PTDF) to reduce the number of buses to be monitored during HVDC control, reduce unnecessary checks, and determine the setpoints for the active/reactive power of the HVDC through system total loss minimization (STLM) control to search for the minimum loss point using Powell’s direct set. We also propose an algorithm to search for the operating point that minimizes the loss automatically and solves the overload occurring in an emergency through security-constrained loss minimization (SCLM) control. To verify the feasibility of the algorithm, we conducted a case study using an actual Korean power system and verified the effect of systematic loss reduction and overload relief in a contingency. The simulations are conducted by a commercial power system analysis tool, Power System Simulator for Engineering (PSS/E).

scholarly journals The Environment-Power System Analysis Tool development program

2003 ◽  
Author(s):  
G.A. Jongeward ◽  
R.A. Kuharski ◽  
E.M. Kennedy ◽  
K.G. Wilcox ◽  
N.J. Stevens ◽  
...  
Keyword(s):  
Power System ◽  
System Analysis ◽  
Development Program ◽  
Analysis Tool ◽  
Tool Development ◽  
Power System Analysis

scholarly journals The Environment-Power System Analysis Tool development program

1989 ◽  
Vol 4 (11) ◽  
pp. 40-43
Author(s):  
G.A. Jongeward ◽  
R.A. Kuharski ◽  
E.M. Kennedy ◽  
K.G. Wilcox ◽  
N.J. Stevens ◽  
...  
Keyword(s):  
Power System ◽  
System Analysis ◽  
Development Program ◽  
Analysis Tool ◽  
Tool Development ◽  
Power System Analysis

scholarly journals Multi-Type FACTS Controllers for Power System Compensation: A Case Study of the Nigerian 48-Bus, 330 kV System

2021 ◽  
Vol 18 (1) ◽  
pp. 63-69
Author(s):  
I.E. Nkan ◽  
E.E. Okpo ◽  
O.I. Okoro
Keyword(s):  
Power System ◽  
System Analysis ◽  
Reactive Power ◽  
Sensitivity Factor ◽  
Investment Fund ◽  
Voltage Profile ◽  
Power Losses ◽  
Percentage Decrease ◽  
Facts Devices ◽  
Facts Controllers

Flexible alternating current transmission system (FACTS) devices have provided proficient answers to power system instabilities faced in the systems operations today with very little infrastructural investment fund. This paper investigates the effects of the installation of the combination of two kinds of FACTS controllers; static VAR compensator (SVC) and thyristor controlled series compensator (TCSC) compared with the installation of SVC or TCSC alone in the system. Voltage magnitude profile, active and reactive power losses of the three scenarios were achieved in the Nigerian 48-bus power system network using power system analysis toolbox (PSAT) in MATLAB environment. Simulation results obtained without and with FACTS devices optimally placed using voltage stability sensitivity factor (VSSF), revealed that the percentage decrease of the net real and reactive power losses of the combined SVC and TCSC was the highest at 31.917% whereas that of the standalone SVC and TCSC stood at 19.769% and 30.863% respectively. This shows that in addition to their capabilities to maintain acceptable voltage profile, the combination of SVC and TCSC has better compensating effect as they mitigate against power losses which was observed in their high percentage decrease in power losses compared to the standalone FACTS devices. Keywords: FACTS, optimum location, PSAT, SVC, TCSC, VSSF

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