Virtual instrumentation applied to electrical engineering education. / Instrumentação virtual aplicada ao ensino experimental de engenharia elétrica.

AUTOR(ES)

Vinícius José Santos Lopes

DATA DE PUBLICAÇÃO

2007

RESUMO

The proposal of this work is to present some potential applications of the software LabVIEW, from National Instruments, associated with data acquisition hardware, applied to experiments in the Electric Energy Systems area as a tool to support the presential education. This dissertation shows the developing of an experience in a electric energy system laboratory, which use Hall Effect sensors, A/D data acquisition board, connected to a PC, and the software LabVIEW (National Instruments) in order to monitor electrical parameters, calculate and analyze power, energy and power factor in a low-voltage power system, which contains synchronous three-phase generators of 2 kVA-220V, with a transmission line model provided with reactors and capacitors, and a resistance box representing a passive load. The A/D board allows controlling digital outputs that can control counters that switch on or off the circuit elements in the analysis. A program was developed in order to act a tool to support the process teaching-learning. This program allows to monitor and to act in the experimental assembly providing three basic virtual tools for the experiment development. These three tools are: one screen that simultaneously shows the phasor diagram with current and voltage; a second screen that shows voltage and current waveform of the mini-system with its respective imbalances; and the third and last screen, that provides a virtual synchronoscope which makes possible the analysis of the necessary adjustments of voltage and frequency in the operation of parallelism between the mini-system and the energy power supplier. This program allows the access to the experimental assembly of the energy mini-system through a computer installed in a bench of the laboratory. As a result, the students can also monitor and control the experiments through their own computers, allowing them to visualize and to reinforce in the laboratory, the concepts taught in theory.

ASSUNTO(S)

remote acess engenharia elétrica (ensino) educação à distância sistemas elétricos de potência (automação) labview data acquisition energy systems signal processing

Documentos Relacionados

• Virtual laboratory for electrical engineering education
• Contribuições sobre a gênese da Engenharia elétrica
• Uma proposta de formação tecnico-humanista aplicada ao ensino de engenharia eletrica
• Multidisciplinary distributed optimization applied to engineering projects.
• Extended Kalman filter applied to electrical impedance tomography.