Ferroresonance Analysis on Power Transformers Interconnected to Self-excited Induction Generators

Abstract

This research intends to prove by experimental work how ferroresonance can occur between generating systems based on a self-excited induction generator and power transformers. Up to four different paths have been tested under different commutation maneuvers. Ferroresonance appearance can unfold into a dangerous state for machinery and personnel. Several over-voltages can be present in the system by a simple delay in one of the poles responsible for grid connection/disconnection.

Keywords:

• ferroresonance
• power transformers
• non-linear behavior
• self-excited induction generator

Additional information

Notes on contributors

Javier Arturo Corea-Araujo

Javier Arturo Corea-Araujo was born in San Salvador (El Salvador). He received his M.S. and Ph.D. in electronic engineering from Universitat Rovira i Virgili, Catalunya, Spain, in 2010 and 2015, respectively. Currently, he is a researcher in the Department d’Enginyeria Electrònica, Elèctrica i Automàtica, Universitat Rovira i Virgili. His research interests include transient analysis of power systems, electromagnetic transient program modeling, and non-linear dynamics.

Jose Antonio Barrado-Rodrigo

Jose Antonio Barrado-Rodrigo was born in Zaragoza, Spain. He received his Ph.D. in automatic control from Universitat Politècnica de Catalunya, Catalunya, Spain, in 2008. Currently, he is an associate professor with the Department of Electronic Engineering and Automatic Control of the Universitat Rovira i Virgili, Tarragona, Spain. His research interests include analysis, modeling, and control of electric generators in renewable energy systems.

Francisco Gonzalez-Molina

Francisco Gonzalez-Molina was born in Barcelona, Spain. He received his M.S. and Ph.D. in industrial engineering from Universitat Politècnica de Catalunya, Catalunya, Spain, in 1996 and 2001, respectively. Currently, he is an assistant professor in the Department d’Enginyeria Electrònica, Elèctrica i Automàtica, Universitat Rovira i Virgili, Catalunya. His research interests include transient analysis of power systems, lightning performance of transmission and distribution lines, power quality, and renewable energy.

Luis Guasch-Pesquer

Luis Guasch-Pesquer was born in Tarragona, Spain. He received his M.S. and Ph.D. in industrial engineering from Universitat Politècnica de Catalunya, Catalunya, Spain, in 1996 and 2006, respectively. Currently, he is an associate professor in the Department d’Enginyeria Electrònica, Elèctrica i Automàtica, Universitat Rovira i Virgili, Catalunya. His research interests include electric machines and power system quality.