Analisis Gangguan Pada Sistem Tenaga Listrik Jawa Bali 500 kV Menggunakan Power World Simulator

Short circuit is one type of interference that often occurs in electric power systems. The interference if it lasts a long time will affect the quality and continity of electrical power distribution as well as the reliability and safety of the equipment on the system. To minimize the possibility of interference and to minimize the consequences caused by interference, an analysis of disturbances in the electric power system is needed. This study discusses the classification and analysis of disturbances in the electric power system. The type of interference in the electric power system is classified into two, namely symmetry and non-symmetrical interference. Symmetry disturbances are three phase disturbances which are described by the equation of the sequence of the symmetry component system. Sequence equations from the symmetry component system are positive sequence equations, negative sequence equations, and zero sequence equations. Non-symmetrical interference is a disorder that often occurs in electric power systems, namely the interference of one network to the ground, network interference to the network and interference of two networks to the ground. This research is to classify and to analyze the types of disturbances in the Java-Bali electric power system 500 kV 20 buses in the form of a single line diagram, using Power World Simulator and ETAP Software applications. The simulation results are calculated and display the simulation design of the power system with the tools contained in the program.

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A Novel Methodology for Adaptive Coordination of Multiple Controllers in Electrical Grids

Mathematics ◽

10.3390/math9131474 ◽

2021 ◽

Vol 9 (13) ◽

pp. 1474

Author(s):

Ruben Tapia-Olvera ◽

Francisco Beltran-Carbajal ◽

Antonio Valderrabano-Gonzalez ◽

Omar Aguilar-Mejia

Keyword(s):

Power Systems ◽

Power System ◽

Electric Power ◽

Large Scale ◽

Short Circuit ◽

Dynamic Performance ◽

Low Frequency ◽

Electric Power System ◽

Design Stage ◽

Positive Interaction

This proposal is aimed to overcome the problem that arises when diverse regulation devices and controlling strategies are involved in electric power systems regulation design. When new devices are included in electric power system after the topology and regulation goals were defined, a new design stage is generally needed to obtain the desired outputs. Moreover, if the initial design is based on a linearized model around an equilibrium point, the new conditions might degrade the whole performance of the system. Our proposal demonstrates that the power system performance can be guaranteed with one design stage when an adequate adaptive scheme is updating some critic controllers’ gains. For large-scale power systems, this feature is illustrated with the use of time domain simulations, showing the dynamic behavior of the significant variables. The transient response is enhanced in terms of maximum overshoot and settling time. This is demonstrated using the deviation between the behavior of some important variables with StatCom, but without or with PSS. A B-Spline neural networks algorithm is used to define the best controllers’ gains to efficiently attenuate low frequency oscillations when a short circuit event is presented. This strategy avoids the parameters and power system model dependency; only a dataset of typical variable measurements is required to achieve the expected behavior. The inclusion of PSS and StatCom with positive interaction, enhances the dynamic performance of the system while illustrating the ability of the strategy in adding different controllers in only one design stage.

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Modeling and simulation of transients in electric power systems using hybrid system theory

ITM Web of Conferences ◽

10.1051/itmconf/20192402012 ◽

2019 ◽

Vol 24 ◽

pp. 02012

Author(s):

Yury Shornikov ◽

Evgeny Popov

Keyword(s):

System Theory ◽

Power Systems ◽

Power System ◽

Mathematical Models ◽

Modeling And Simulation ◽

Electric Power ◽

Hybrid System ◽

Electric Power Systems ◽

Electric Power System ◽

Simulation Environment

Transients in electric power systems are of great interest to power engineers when designing a new or maintaining an existing system. The paper deals with using hybrid system theory for modeling and simulation of an electric power system with controllers. The presented technique is rather convenient and recommended as mathematical models of transients in electric power systems with controllers in general contain both continuous and discrete components. The modeling and simulation were carried out in the modeling and simulation environment ISMA, which is briefly presented in the paper.

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A Modular Neural Network Scheme Applied to Fault Diagnosis in Electric Power Systems

The Scientific World JOURNAL ◽

10.1155/2014/176463 ◽

2014 ◽

Vol 2014 ◽

pp. 1-13

Author(s):

Agustín Flores ◽

Eduardo Quiles ◽

Emilio García ◽

Francisco Morant ◽

Antonio Correcher

Keyword(s):

Fault Diagnosis ◽

Power Systems ◽

Power System ◽

Transmission Line ◽

Electric Power ◽

Diagnostic System ◽

Specific Area ◽

Electric Power Systems ◽

Electric Power System ◽

Power Network

This work proposes a new method for fault diagnosis in electric power systems based on neural modules. With this method the diagnosis is performed by assigning a neural module for each type of component comprising the electric power system, whether it is a transmission line, bus or transformer. The neural modules for buses and transformers comprise two diagnostic levels which take into consideration the logic states of switches and relays, both internal and back-up, with the exception of the neural module for transmission lines which also has a third diagnostic level which takes into account the oscillograms of fault voltages and currents as well as the frequency spectrums of these oscillograms, in order to verify if the transmission line had in fact been subjected to a fault. One important advantage of the diagnostic system proposed is that its implementation does not require the use of a network configurator for the system; it does not depend on the size of the power network nor does it require retraining of the neural modules if the power network increases in size, making its application possible to only one component, a specific area, or the whole context of the power system.

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A study of the transient processes in the physical model of the electric power systems with predominant part of the renewable energy sources

E3S Web of Conferences ◽

10.1051/e3sconf/202128602009 ◽

2021 ◽

Vol 286 ◽

pp. 02009

Author(s):

Ivaylo Nedelchev ◽

Hristo Zhivomirov ◽

Yoncho Kamenov

Keyword(s):

Renewable Energy ◽

Power Systems ◽

Power System ◽

Electric Power ◽

Physical Model ◽

Wind Power ◽

Electric Power Systems ◽

Electric Power System ◽

Transient Processes ◽

Energy Sources

The renewable energy take part in the most of the electric power systems in the modern world. The part of this type of energy in the global electric power system, as well as in the local scale, increases with the setting the stricter requirements for decreasing the level of the carbon dioxide emissions. This is the result of the newest international conventions and decision for saving the nature. By these conditions, the electric power systems are forced to work with more different types of energy sources: wind power, photovoltaic, biomass plants etc. Switching of such miscellaneous power sources, leads to complicated transient processes, which are developed due to specific electrical parameters, especially harmonic components, of the synchronous generators, photovoltaic and wind power plants. This paper represents data from measurements of the transient processes into the physical model of the electric power system with predominant part of renewable energy and assesses the applicability of the model. For conducting this study, the multichannel DAQ measurement system is used.

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Problems of using pumped storage power plants to improve the reliability and controllability of electric power system of the republic of Uzbekistan

E3S Web of Conferences ◽

10.1051/e3sconf/201913901009 ◽

2019 ◽

Vol 139 ◽

pp. 01009

Author(s):

Murodilla Mukhammadiev ◽

Boborakhim Urishev ◽

Shirin Esemuratova ◽

Nigina Djumaniyozova

Keyword(s):

Power Systems ◽

Power System ◽

Electric Power ◽

Power Plants ◽

Electric Power Systems ◽

Electric Power System ◽

The Republic ◽

Pumped Storage

This article deals with the analysis and development perspectives of the use pumped storage power plants use to increase the reliability and regime controllability of electric power systems of the Republic of Uzbekistan.

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Analysis of The Failure Protection System 20 KV CBO T75B Substation Malibu Feeder PT PLN (Persero) UP3 Menteng

Syntax Literate ; Jurnal Ilmiah Indonesia ◽

10.36418/syntax-literate.v6i2.5272 ◽

2021 ◽

Vol 6 (2) ◽

pp. 1422

Author(s):

Doni Abdul Mukti ◽

Budi Sudiarto

Keyword(s):

Power System ◽

Electric Power ◽

Power Distribution ◽

Distribution System ◽

Short Circuit ◽

Performance Testing ◽

Electric Power System ◽

Protection System ◽

Electrical Power System ◽

Power Distribution System

Protection is a safety in the electric power system installed in the electric power distribution system, power transformer, electric power transmission, and electric generator used to secure the power system electricity from electrical disturbances or overloads by separating the disturbed parts of the electric power system from the undisturbed electrical power system so that the undisturbed electrical system can continue to work. The protection system at the T75B substation has a work failure where when there is a short circuit on the consumer side, it causes the PMT (Power Breaker) for the Malibu Feeder at the Kebon Sirih Substation to trip while the CBO (Circuit Breaker Outgoing) cubicle at the T75B substation does not trip. This resulted in an unexpected widespread blackout. To find out the cause of the failure of the protection system, several tests and analyzes were carried out, namely protection design testing, protection relay coordination testing, protection system construction analysis, protection equipment performance testing. It is hoped that the test results can be used as a reference for improvement so that similar failures do not recur.

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Electric Power System Fault Analysis

WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS ◽

10.37394/23201.2020.19.3 ◽

2020 ◽

Vol 19 ◽

Keyword(s):

Power Systems ◽

Power System ◽

Electric Power ◽

Circuit Breaker ◽

Electric Power Systems ◽

Fault Analysis ◽

Electric Power System ◽

Successful Operation ◽

Power Utility ◽

Protection Devices

Fault analysis is an important aspect in the successful operation of a power utility grid. The occurrence of faults in the system is not avoidable as causes of faults are not particularly one but of many with different causes and nature. It is one of the most important as well as it one of the most complex tasks in power engineering. The studies and discovery of faults in electric power systems is essential in ensuring the consistency and the stability if the power grid. Another importance of carrying out fault analysis gives a fair idea of the voltages and the current magnitudes under faulty conditions for different scenarios. This is helpful in the design of protection devices such as fuses, circuit breaker ratings, over current protection relays and other devices that are used for the protection of the system. Protection devices are important features of the power system grid mainly because their role in saving equipment and also human lives. In this paper, we investigate and analyze the behavior of electric power systems under fault conditions and then evaluate various practical scenarios.

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MATHEMATICAL MODELING OF THE PROBLEM OF OPTIMAL CONTROL OF ELECTRIC POWER SYSTEMS

10.32014/2018.2518-1726.8 ◽

2018 ◽

pp. 62-67

Author(s):

Kalimoldayev М.N. ◽

Abdildayeva А.А. ◽

Akhmetzhanov M.A. ◽

Galiyeva F.M.

Keyword(s):

Mathematical Model ◽

Optimal Control ◽

Power Systems ◽

Power System ◽

Electric Power ◽

Electric Power Systems ◽

Electric Power System ◽

Nonlinear Ordinary Differential Equations ◽

System Optimal ◽

The Given

The problems of optimal control of nonlinear ordinary differential equations systems are considered in this paper. The considered mathematical model describes the transient processes in the electric power system. And the problem of optimal control of electric power systems is considered in more detail. Numerical experiments have shown that the control found is optimal for the given problem. Keywords: mathematical model, electric power system, optimal control.

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Multi-criteria approaches to electric power system development

E3S Web of Conferences ◽

10.1051/e3sconf/202021601006 ◽

2020 ◽

Vol 216 ◽

pp. 01006

Author(s):

Nikolay Belyaev ◽

Andrey Egorov ◽

Nikolay Korovkin ◽

Vladimir Chudny

Keyword(s):

Power Systems ◽

Power System ◽

Electric Power ◽

System Development ◽

Optimization Procedure ◽

Electric Power Systems ◽

Electric Power System

The paper considers the issues of multi-criteria optimization procedure when planning the development of electric power systems (hereinafter - EPS). The advantages of multi-criteria approach as compared to the standard statement of a problem dealing with the justification for EPS development and feasible criteria for such a development have been examined. The problem of optimization of the structure of generating capacities within the power system has been stated and solved on the basis of four criteria; the analysis of obtained results has been carried out.

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