Modeling for computer simulation as a tool for the teaching of transient power systems

Martins, L. Sousa; Costa, Dulce; Martins, J. F.; Pires, V. Fernão

doi:10.1109/powereng.2009.4915232

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…During many kinds of software used to finish the simulation, MALAB/Simulink is one of the most popular software. There have been some application such as the model and simulation of the dynamic behavior of ac-powered electromechanical contactors [1], the integration of two kinds of software including Matlab and Excel to conceptualize the relationship between abstract mathematical models to some practical situations [2], using some specially designed exercises on substation lightning protection in teaching high voltage course in Matlab software [3], building the model of power systems on the topics of transient analysis [4], and the surge modeling of transformers [5], etc. In this paper, based on the simulation process of transformer test [6], considering the influence of shunt capacitor and different frequency AC power supply, the short-circuit test is applied by using the SymPowSystem toolbox in Matlab/Simulink software platform.…”

Section: Introductionmentioning

confidence: 99%

The Application of Shunt Capacitor in Short-Circuit Test System of Transformer under Variable Frequency Power Supply

Wang

Zhang

Han

et al. 2013

AMM

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The short-circuit test is an important topic on the study of transformer features. With the shunt capacitor paralleled to the tested transformer, the test current can be reduced by the resonant of the capacitor and the inductance of transformer winding. Furthermore, using the high frequency power supply, the capacitor can be reduced in the resonant point because the high frequency values. In this work, the simulation model of short-circuit test of transformer with different frequency power supply is designed. Under variable frequency power supply, which are 50Hz,100Hz and 150Hz, the shunt capacitors value is given. From the simulation results, the application of the shunt capacitor takes a role in the short-circuit test of transformer. This has a significance role in transformer test research and engineering application field.

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Section: Introductionmentioning

confidence: 99%

The Application of Shunt Capacitor in Short-Circuit Test System of Transformer under Variable Frequency Power Supply

Wang

Zhang

Han

et al. 2013

AMM

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“…MATLAB/Simulink models: power system models in MATLAB/Simulink are a great tool to use with power systems testbeds in laboratories. However, these power system models are based on a simulation program that has been developed, and they can have some capabilities and limitations [37]. However, the broad use of MATLAB/Simulink have increased, and the power systems model have been continually being improved by students, professors, and researchers.…”

mentioning

confidence: 99%

Assessment and Commissioning of Electrical Substation Grid Testbed with a Real-Time Simulator and Protective Relays/Power Meters in the Loop

et al. 2023

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Electrical utility substations are wired with intelligent electronic devices (IEDs), such as protective relays, power meters, and communication switches. Substation engineers commission these IEDs to assess the appropriate measurements for monitoring, control, power system protection, and communication applications. Like real electrical utility substations, complex electrical substation grid testbeds (ESGTs) need to be assessed for measuring current and voltage signals in monitoring, power system protection, control (synchro check), and communication applications that are limited by small-measurement percentage errors. In the process of setting an ESGT with real-time simulators and IEDs in the loop, protective relays, power meters, and communication devices must be commissioned before running experiments. In this study, an ESGT with IEDs and distributed ledger technology was developed. The ESGT with a real-time simulator and IEDs in the loop was satisfactorily assessed and commissioned. The commissioning and problem-solving tasks of the testbed are described to define a method with flowcharts to assess possible troubleshooting in ESGTs. This method was based on comparing the simulations versus IED measurements for the phase current and voltage magnitudes, three-phase phasor diagrams, breaker states, protective relay times with selectivity coordination at electrical faults, communication data points, and time-stamp sources.

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A computer‐based testing system to evaluate protective relays as a tool in power system protection education

Martins

Fortunato

Pires

2012

Comp Applic In Engineering

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Teaching power system relaying is a fundamental issue in a power system high-level course.However, for an effective instruction of this topic an experience with real equipments can be considered as fundamental. To achieve this purpose, in this paper a new approach for the practical learning of power system relaying is presented. This consists of a computer-based testing system of relay-operating characteristic. Different relay types and developed specific software are also an important piece of the laboratory practice. Using this system it is possible to understand the performance and limitations of different protective relay systems and to test a real relay disoperation. The benefit of using this system is not available through traditional lectures and textbooks. ß

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Modeling for computer simulation as a tool for the teaching of transient power systems

Cited by 6 publications

References 5 publications

The Application of Shunt Capacitor in Short-Circuit Test System of Transformer under Variable Frequency Power Supply

The Application of Shunt Capacitor in Short-Circuit Test System of Transformer under Variable Frequency Power Supply

Assessment and Commissioning of Electrical Substation Grid Testbed with a Real-Time Simulator and Protective Relays/Power Meters in the Loop

A computer‐based testing system to evaluate protective relays as a tool in power system protection education

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