Plenary Lecture
LabVIEW Application for Monitoring and Control the Filtering, Compensation and Balancing System for a Nonlinear Electric Load
Assistant Professor Caius Panoiu
Politehnica University of Timisoara
ROMANIA
E-mail: caius.panoiu@fih.upt.ro
Abstract: In a complex power distribution, the circulation of the current harmonics and also their voltage drop lead to undesirable effects as the followings: distortion of the voltage waveform, additional heating in functioning of the electric devices, additional power loss or electromagnetic influence on telecommunication systems. The most important components that cause harmonic distortion into the power distribution represent the power electronic converters. For compensating this negative impact, there must be connected power conditioning devices at the interface with the power supply system in order to obtain improvements in power quality indicators. Analyzing the electric parameters acquired during the functioning of nonlinear loads represents a very important step in designing the electronic devices which must compensate the distorted regime. This paper present a LabVIEW application that is able to monitor the variation of most important electric parameters that characterize the functioning of an electrothermal installation with electromagnetic induction. Using an adapting interface and a data acquisition board connected to a computer, LabVIEW application acquires in real time samples of the current and voltage signals and shows the time variation of the following electrical parameters: RMS voltage and currents, active, reactive, distorted and apparent powers, total harmonic distortion of the current and voltage waveforms. This variation can be obtained on the entire acquisition period. Presented application also implements a system for three phase active filter command system using the sequential structures existing in LabVIEW library. The application is able to control the command pulses using the pinouts of the same data acquisition board.
Brief Biography of the Speaker:Caius Panoiu was born in 1965 and graduates in 1989 the Faculty of Electronics and Telecommunications, ‘Politehnica’ University of Timisoara. He receives his PhD degree in Electrical Engineering in 2001 at ‘Politehnica’ University of Timisoara and currently is Assistant Professor at the Electrical Engineering and Industrial Informatics Department of Engineering Faculty of Hunedoara, ‘Politehnica’ University of Timisoara. Romania. Caius Panoiu research interests are focused on signal processing, modeling and simulating systems, and data acquisition. He is author or co-author of over 100 research papers that are published in journals and conferences and participates to 10 research projects.