Modelling and Simulation of a Three Phase Voltage Source Active Power Filter

• Type: Article in International Conference Proceedings Book
• Date: 1995

Authors

Armando Araújo (Author) FEUP; António Pina Martins (Author) FEUP; Adriano Carvalho (Author) FEUP

Conference proceedings International

Title: EUROSIMCONGRESS '95

Pages: 735-740

EUROSIMCONGRESS '95

Viena, Austria

Other information

Abstract (EN): The increasing use of non linear loads such as rectifiers, cycloconverters, variable speed drives and arc furnaces causes high disturbances in the power supply system. For the recent years, the use of passive filters consisting of tunned LC filters and high pass filters has been the usual and most efficient solution to compensate for low power factors and to eliminate the current harmonics. On the other hand, the needs of connection of weak power sources to the main grid such as renewable or uninterruptible power sources require parallel operation of autonomous inverters with the main grid. The present development allows to improve the control techniques applied to this kind of system. So, it should be changed the passive filtering to active filtering through implementation of appropriated control techniques. This paper focus its attention in the voltage source type filter because it has more functionality, e.g. supply of active power to the DC bus. For this one, different goals at the compensation level can be defined: harmonic current compensation, in low power applications and using fast semiconductors [1], [2] fundamental reactive power compensation, in medium power situations [3], [4] unity power factor, when the source voltage presents a high level distortion [5]. The establishing of the compensation purposes can only be carried out by analyzing the specific characteristics of each application. A three phase active filter prototype is being developed so we hope to present experimental results in the future.

Language: Portuguese

Type (Professor's evaluation): Scientific

No. of pages: 6