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

Martins, L. Sousa; Fortunato, Carlos; Pires, V. Fernão

doi:10.1002/cae.20369

Cited by 6 publications

(5 citation statements)

References 24 publications

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“…In the last years several teaching tools based on personal computers have been developed, allowing the improvement of student's motivation through computer simulation programs [7][8][9][10]. Likewise, since personal computers have become widely spread and Internet connected, several tools have appeared using this technology on distance learning schemes [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Development of an experimental system for teaching induction motors with fault detection and diagnosis capabilities

Pires

Martins

Amaral

2012

Comp Applic In Engineering

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ABSTRACT:The study of fault detection and diagnosis of electrical machines, in particular induction motors, as well as the teaching of their behavior requires practical experience in this field. To provide this experience to the students this paper presents an experimental system that can be used with a standard industrial electrical induction machine. This system is based on only one healthy induction machine that is operated under faulty operating modes. Several fault types such as stator winding faults, bearing faults, or broken bars can be tested. The developed system also allows testing the behavior of the electrical machine for different load types. Several typical loads in which the torque depends of time or speed were implemented. The system is based on computer equipment with a DSPIC, a testing system and an induction machine.

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Section: Introductionmentioning

confidence: 99%

Development of an experimental system for teaching induction motors with fault detection and diagnosis capabilities

Pires

Martins

Amaral

2012

Comp Applic In Engineering

Self Cite

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“…For the practical teaching improvement of PSRP, there are mainly two teaching schemes: hardware [9][10][11][12][13][14][15][16][17] and software [18][19][20][21][22][23]. The hardware mode needs to rely on certain physical equipment or platform to complete the relay protection experiment.…”

Section: Introductionmentioning

confidence: 99%

Design and Application of Virtual Flexible Simulation Experiment Teaching Platform for Relay Protection

Dou

Peng²,

Wang³

et al. 2023

Research Reports on Computer Science

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Power system relay protection (PSRP) is a comprehensive course in electrical engineering undergraduate stage, which has a very strong engineering application. However, due to the influence of many factors, such as the power system security, high experimental cost, limited course hours, insufficient open conditions, and so on, traditional experimental teaching combined with hardware is difficult to meet the needs of students in various scenarios anytime and anywhere. Therefore, a low-cost virtual flexible simulation experiment teaching platform (VFSETP) is developed. The platform uses Simulink to build the simulation model of power system primary system and uses graphical user interface (GUI) to design the human-computer interaction interface. Through the communication between GUI and Simulink model, the protection experiments in various scenarios are successfully simulated. The VFSETP has many advantages such as simple interface, good visualization effect, and simple operation. The teachers can easily use it for classroom demonstration, and the students can use it for verification, analysis, expansion, and exploration of experiments in a variety of application scenarios without relying on the laboratory environment. This experimental mode is very conducive to the understanding of knowledge and the cultivation of practical innovation ability. The results of the student survey show that the design method and application mode of the platform can provide a reference for similar courses.

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“…To overcome these problems, digital-physical hybrid simulated electrical power system platforms were proposed and realized to provide hands-on experience on some specific devices [6][7][8][9][10][11], such as distribution generators [7] and protective relays [8][9][10][11]. One laboratory education tool of operation optimization in the distribution network was proposed in Reference [7], where physical distributed energy generators are integrated into the tool, while two independent distribution systems are simulated in the digital real-time simulator.…”

Section: Introductionmentioning

confidence: 99%

“…One laboratory education tool of operation optimization in the distribution network was proposed in Reference [7], where physical distributed energy generators are integrated into the tool, while two independent distribution systems are simulated in the digital real-time simulator. To improve the educational process of the protective relay systems, power-system-relaying laboratories were developed for testing the relay operating characteristics in References [8][9][10]. Although industrial relays are used in these laboratories, pre-and post-fault signals are generated by a digital power-system simulator to test the relays.…”

Section: Introductionmentioning

confidence: 99%

Development of an Integrated Power Distribution System Laboratory Platform Using Modular Miniature Physical Elements: A Case Study of Fault Location

et al. 2019

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The main shortcomings of the software-based power engineering education are a lack of physical understanding of phenomena and hands-on experience. Existing scaled-down analogous educational power system platforms cannot be widely used for experiments in universities due to the high cost, complicated operation, and huge size. An integrated power distribution system laboratory platform (PDSLP) using modular miniature physical elements is proposed in this paper. The printed circuit board (PCB) and microelectronic technology are proposed to construct each physical element. Furthermore, the constructed physical elements are used to set up an integrated PDSLP based on modular assembly technology. The size of the proposed cost-efficient PDSLP is significantly reduced, and the reliability of the proposed PDSLP can be improved greatly because the signal transmission path is shortened and a number of welding points are reduced. A PDSLP for fault location in neutral non-effectively grounded distribution systems (NGDSs) is selected as a typical experimental scenario and one scaled-down distribution network with three feeders is subsequently implemented and discussed. The measured zero-sequence currents by our proposed PDSLP when a single-phase earth fault occurred can reveal the true features of the fault-generated signals, including steady-state and transient characteristics of zero-sequence currents. They can be readily observed and used for students to design corresponding fault location algorithms. Modular renewable energy sources and other elements can be designed, implemented and integrated into the proposed platform for the laboratory education of the active distribution networks in the future.

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

Cited by 6 publications

References 24 publications

Development of an experimental system for teaching induction motors with fault detection and diagnosis capabilities

Development of an experimental system for teaching induction motors with fault detection and diagnosis capabilities

Design and Application of Virtual Flexible Simulation Experiment Teaching Platform for Relay Protection

Development of an Integrated Power Distribution System Laboratory Platform Using Modular Miniature Physical Elements: A Case Study of Fault Location

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