Understanding Power Quality Problems: Voltage Sags and Interruptions

Math H. J. Bollen is associate professor in the Department of Electric Power Engineering at Chalmers University of Technology, Gothenburg, Sweden. Before joining Chalmers, he was employed as a lecturer at the University of Manchester Institute of Technology (UMIST), Manchester, UK and at Eindhoven University of Technology, Eindhoven, The Netherlands. In 1998 Dr. Bollen received the ABB Energy Prize (Gunnar Engström Stipendiet) for his work on power quality and his contributions toward understanding voltage sags. He is cochair of the IEEE Industry Applications Society Power System Reliability Subcommittee and is active in a number of other working groups on power quality and reliability.