A realistic generator of power quality disturbances for practicing in courses of electrical engineering

In the present study, we introduce a FPGA‐based educational system called RELI‐EVA (REconfigurable‐Logic‐based system for Implementation and Evaluation of real‐time Video processing and analysis of Algorithms), which has been integrated into a Computer and Electronic Engineering course by following the “learning‐by‐doing” approach. Therefore, the aim of this system is to provide engineering students with an intuitive tool in order to understand the main algorithms for real‐time video processing and create and test some new algorithms before their real implementation in physical systems. Moreover, with the aim of demonstrating the potential of the developed FPGA‐based system, the development of a practical example for edge detection is presented in order to support the theoretical basis of real‐time video processing. Additionally, a qualitative research method was followed to evaluate the proposed tool. A high percentage of the surveyed students corroborated the success of RELI‐EVA as part of an engineering course. © 2017 Wiley Periodicals, Inc. Comput Appl Eng Educ 25:376–391, 2017; View this article online at http://www.wileyonlinelibrary.com/journal/cae; DOI

Section: Discussionsupporting

confidence: 90%

Teaching real‐time video processing theory by using an FPGA‐based educational system and the “learning‐by‐doing” method

Guzmán‐Ramírez

García

González

et al. 2017

“…The simulation of power harmonics (or systems with harmonic distortion) has also been explicitly considered as a learning outcome by several authors . This can be accompanied by the need to know how to set simulation parameters [39,46]. Other less common learning outcomes are the ability to acquire or monitor power harmonics and relate theoretical principles to real‐life observations of this distortion [3,46].…”

Section: Resultsmentioning

confidence: 99%

“…This can be accompanied by the need to know how to set simulation parameters [39,46]. Other less common learning outcomes are the ability to acquire or monitor power harmonics and relate theoretical principles to real‐life observations of this distortion [3,46]. Several authors treat harmonic distortion indirectly: they want students to have the ability to model power electronics systems (PV systems, converters, etc.)…”

Section: Resultsmentioning

confidence: 99%

“…With relation to harmonic distortion indicators, the prevalent indicator to measure the harmonic distortion is the representation of the “harmonic spectrum,” since it is used in 68% of the existing studies . With a similar level of penetration, the THD is used by 63% of the works , and the display of the “voltage and current waveforms” is included in 47% of the studies . The real PF is another metric commonly used in harmonic modeling and simulation, considered in 32% of the existing studies .…”

Section: Resultsmentioning

confidence: 99%

“…Another important point that deserves to be analyzed is referred to the functionalities provided by the different tools. A total of 84% of the existing studies are exclusively focused on harmonic distortion, while the remaining 16% also cover other types of power quality phenomena like dip/sag (instantaneous decrement of voltage/current) , swell (instantaneous increment of voltage/current), notching , or flicker [43,46]. Other additional functionalities that have been considered are the analysis of the load power flow [3,12], the examination of the loads’ behavior for different frequencies or the modeling and simulation of filters to mitigate the effect of the non‐linear loads [12,38].…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

A survey on modeling and simulation practices for teaching power harmonics

Igual

Plaza

Marcuello

et al. 2018

In recent years the undergraduate engineering curriculum of several areas has started to incorporate the study of harmonic distortion on electrical systems. Several education simulation tools have been developed and investigated, most of them a short time ago. However, to the best of our knowledge, there is not any literature review on this topic. In this work, we present for the first time a systematic survey on educational tools to model and simulate the effect of power harmonics on industrial electrical networks. As a result, several improvement aspects have been identified and recommendations and implications for future research have been provided. For that, a retrospective study has been accomplished, showing a growing trend toward simulation and modeling. The key teachers’ perceptions to incorporate these practices are the ease of the teaching‐learning process and the importance of modeling and simulation in the industry. The main research challenge is the conduction of integral assessments that comprise both tools’ quality and use experience, and their contribution to achieve learning outcomes. Statistical tests should be used to validate the academic results obtained. This is a major challenge, since only a few of the existing studies incorporate such tests. Other implications for future research refer to the involvement of a higher number of students in the evaluations and the use of free software in the development of the applications.

Educational framework for a motor drive control systems: Design and performance assessment

Porobic

Adžić

Vekić

et al. 2017

In this paper, an emulation based electrical drive laboratory for graduate and undergraduate power engineering students and practicing engineers is presented. The virtual laboratory is realized by means of Hardware‐In‐the‐Loop (HIL) system, which is increasingly recognized as an effective approach in the design of power electronics control. Control of induction motor, as the most widely used machine including main and side effects is examined. In order to perform experiments gradually, software development framework which provides modular and incremental DSP programming possibilities (from basic to advanced levels) is given. Digital controller design procedure combined with appropriate emulated power stage, and followed by experimental results is presented in detail. In addition to conventional test procedure, scripting method implemented through Application Programming Interface (API) is shown. The benefits of remote laboratory approach is described in the case of collaboration of multiple teams. The proposed approach can be used as additional or completely self‐contained tool for research and education of electrical drive control. © 2017 Wiley Periodicals, Inc. Comput Appl Eng Educ 25:264–276, 2017; View this article online at wileyonlinelibrary.com/journal/cae; DOI 10.1002/cae.21795