Turbo Expander Driven Induction Generator Power Quality Improvement Using Fuzzy-PI Controlled STATCOM
Mehdi Taleshian Jelodar, *Hasan Rastegar, Hossein Askarian Abyaneh
Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
Abstract: Turbo-expanders are very useful equipment for energy recovery in gas pressure reduction stations. Using these equipment for generating electrical energy has gained more attention recently. On the other hand, turbo expander driven generators affect the electrical networks considerably as a new type of distribution power generation. To investigate the effects, first the turbo-expander is analyzed in conjunction with the electrical networks and then some power quality problems are studied in this paper. To overcome the observed problems the FACTS devices are advised. Because of the system nonlinearity, a nonlinear fuzzy –PI controller is used for the STATCOM control system. Finally behavior of the system is compared in the cases with conventional and fuzzy PI controllers.
[Jelodar MT, Rastegar H, Abyaneh HA. Turbo Expander Driven Induction Generator Power Quality Improvement Using Fuzzy-PI Controlled STATCOM. J Am Sci 2013;9(6):528-536]. (ISSN: 1545-1003).http://www.jofamericanscience.org. 66
Keywords: Turbo-expander; distributed power generation; flexible AC transmission systems; fuzzy control