The Method To Create Transmission Lines And Increase The Power System Stability By Using Interconnection System Model (original) (raw)
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Contingency Analysis of Electric Power Systems Sub-System 150 KV West Java Area II
IOP Conference Series: Materials Science and Engineering, 2017
Main generation area II technically served several plants that Jatiluhur, Saguling and Cirata. The backbone of the generation (slack bus) held by two units supplied by IBT 500/150 kV with a power capacity of each IBT is 500 MVA. One sample is a subsystem supplier Cirata has 13 transmission line connecting the substation 8 (GI) and has a total of 17 150/20 kV transformer with a capacity of 930 MVA, while the existing generation units at 150 kV Cirata subsystem is PLTPb Patuha with a power of 55 MW. Given the large power capacity with the strategic and vital functions of the subsystems of 150 kV Cirata requires maximum control and optimization so that the distribution of electricity in West Java can be properly maintained. System Reliability of the power system must be maintained in order to supply power from the generator to the consumer to keep going well. In this study, the disorder will be analyzed is the contingency (N-1), a discharge of one of the channels on the system. Then analyzes the current and voltage changes to prepare for system improvements. Repairs are done when the contingency is to release the load (load shedding). Reliability was measured after load shedding in this study is to measure the quality of the voltage on the load side. At the time of the contingency (N-1), a decline below the voltage value SPLN on some rails GI, including rail Cigereleng (124.8 kV to 136.8 kV), rail Lagadar (125.4 kV to 137.1 kV), rail Padalarang (126.1 kV to 137.5 kV), North Bandung rail (125.5kV be 137.3 kV) and rail Cibabat (125.6 kV to 137.2 kV). Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Impact Analysis of 220 Kv And 400 Kv Transmission Lines on The Integrated Nepal Power System
Technical Journal
Power is an essential requirement for the economic development of any country. To maintain the generation of electric power at an adequate level the power has to be transmitted in a proper form to the consumer. For determination of line losses, voltage profiles and expansion of system, load flow analysis is most essential tools. This paper deals with the impact analysis of new 220 kV and 400 kV lines on Interconnected Nepal Power System (132 kV grid) in Electrical Transient Analyzer Program (ETAP). It represents the present scenario of the power system of Nepal and their impact analysis. Load flow result of existing 132 kV line shows that there is about 44.56 MW active power losses in the transmission line before any compensation techniques. After the Optimal Capacitor Placement, in the existing transmission line the active power loss decreases to about 34.224 MW as well as the voltage profile at each bus improves. The load flow result of the under construction 220 kV and 400 kV li...
IOP Conference Series: Materials Science and Engineering, 2019
The location of electricity generation generally lies in the centers of renewable energy sources which are generally far from urban centers, such as in the province of South Sulawesi, Indonesia. This condition becomes a separate issue related to the quality of the voltage and the efficiency of the electrical system that uses 150 kV transmission lines to transmitted electrical energy from the power plants. Therefore, to avoid waste and lack of quality electricity, it is necessary to insert a new transmission line from these power plants to the city of Makassar. Where the transmission line built is 275 kV transmission line because it increases the voltage profile and is efficient compared to 150 kV transmission line even though the network is added to the bank’s capacitor. Therefore, this paper shows the reasons why a 275 kV transmission line was chosen for the improvement of voltage and reduction of power losses in South Sulawesi system.
Analysis of 132KV Power Transmission Stability in a Developing Nation.
American Journal of Engineering Research (AJER), 2019
This research work considered the analysis of 132KV power transmission line stability with a view of mitigating the frequency of fault occurrence in the power network. The supply is taken from AfSam Power generating station to Port Harcourt Zone 2 injection substation of (132/33kv) voltage level. This work basically considered the transient aspect of stability which is the most severe in the power network. Power swings might be observed by protective relays as three – phase faults and cause unwanted system wide separation as a result of relay mis-operation. However, the existing data collected were used for the study case in Nigeria, in order to investigate the power angles (ẟ), angular velocity ( ) and the differential change at various incremental time, via electrical transient analyzer tool (E Tap – version 12.6) for relay time setting of (0.00,0.02,0.04,0.06,0.08,.0.10,0.12,0.14) . This dissertation used the modified Euler numerical technique. From the various stimulated results, it can be seen that when a symmetrical three phase short circuit fault occurs at the generator bus and other network buses there was need to clear the fault based on the relay coordination as quickly as possible, for this work 7 cycles were allowed and at each cycle the incremental changes of the synchronous machine were calculated on the power network simultaneously. The findings showed that Euler method has faster responds time as compared to the conventional swing equation technique in the event of fault occurrence.
In this paper, the simulation studies are carried out on 330 kV networks of Ikeja West Transmission Company to analyse bus voltages and reactive compensation efficiency. A study of Ikeja West 330KV transmission line was carried out with special attention to contribution and effectiveness of the station Reactor Voltage compensation. In this research, a literature survey on the use reactor for voltage regulation was carried out. Data were obtained during site visit to the station. Ikeja West 330KV line network model was developed with aid of ETAP software analysis and voltage profile on different status of station reactors was determined with a load analysis. A model of Ikeja West 330KV transmission line was perfectly implemented with ETAP simulation software showing behaviour of the network with engagement of the station reactors R1 and R2 with different combination at different time. Voltages profile on the line were observed high when none of the station reactor was engaged on the line. It was also observed that with engagement of any one of the station reactor R1 or R2.
System security includes practices designed to keep the system running when components fail. Bullets to be ejected by automatic relay may storm the damage transfer line. If the appropriate commitment to transmission flows is maintained when the transmission and generation obligation is maintained, the remaining transmission lines can take the increasing load while remaining within the limits. Because the specific times that start events that cause components to fail are unpredictable, the system must be operated at all times in such a way that the system will not leave in a serious situation in the event of any event initiating credibility. Power system equipment is designed to operate within certain limits. Automatic devices that can cause equipment to be transferred from the system if these limits are violated protect most pieces of equipment. In the event that an event occurs on a system that leaves it working at a violation limit, the event may be followed by a series of other actions that switch the other equipment out of service. If this process continues with successive failures, the entire system or large parts of it may collapse completely. In this paper, it has been building simulation program to study the cases outage lines of the karbalaa-132kV network system. Tow cases adopted for the purposes of the study. Where study and discuss those cases in detail and its impact on network performance. It was diagnosed lines, which causes increased power flow over the limit in addition to the reflection of the other feeding lines.
Design a 161 kV transmission line system from Huwara to Jenin
2017
The idea of the project is to design transmission line system for all of the west bank from north to the south. The appropriate design for towers, conductors, insulators has been done as well as for protection system, considering future loads for the area of the project in the period of (2015-2040), and we designed substation for each city that the transmission line across it, and after collecting the specific information of the network the project synchronization built using E-TAP program.
This paper will discuss about an active power generator scheduling method in order to increase the limit level of steady state systems. Some power generator optimization methods such as Langrange, PLN (Indonesian electricity company) Operation, and the proposed Z-Thevenin-based method will be studied and compared in respect of their steady state aspects. A method proposed in this paper is built upon the thevenin equivalent impedance values between each load respected to each generator. The steady state stability index obtained with the REI DIMO method. This research will review the 500kV-Jawa-Bali interconnection system. The simulation results show that the proposed method has the highest limit level of steady state stability compared to other optimization techniques such as Lagrange, and PLN operation. Thus, the proposed method can be used to create the steady state stability limit of the system especially in the peak load condition.
Analyzing the Effect of Wind Farm to Improve Transmission Line Stability in Contingencies
Indian journal of science and technology, 2015
Todays, contingency analysis is being used to predict the effect of line outages in power system operation. This analysis is mostly offline to predict the line outage effects on the blackout of power system. To investigate the grid's sensitivity to each line outage, power flow equations are analyzed. The ranking process of line outage and their effects on the other lines overloading is done by calculating an index (PI MVA) which represents the sum of deviations of each line power from the maximum rating of the line. Furthermore the effect of wind farm connection to the grid is investigated to improve the sensitivity of the grid in line outage contingencies. The effectiveness of the method is tested on IEEE-14 Bus standard benchmark. The simulations are done, using ETAP software.