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7136761 
Journal Article 
Optimum Control Strategy Of MTG - Grid Tie With Isolated Dc Grid Using GA-PI And Bidirectional Svpwm Converter 
Salih, HW; Wang, S; Farhan, BS; , 
2017 
ATLANTIS PRESS 
PARIS 
458-464 
WOS:000428892800101 
In the grid connection mode, many power generation companies prefer to install microturbine (MTG) as it provides high inertia to the system, requires less maintenance, high efficiency, able to burning many types of fuels as compare with another type of conventional power generation such a diesel generator. The MTG coupling with a permanent magnet synchronous generator (PMSG) and an uncontrolled rectifier, dc/dc buck converter and bidirectional DC to AC are utilized. The Conventional (MTG) speed control's system has been widely used leg-lead or PI controllers and this PI, mostly manually tuned by trial and error methods to regulate the microturbine rotor speed respected to the set point. This conception tends to the inefficient dynamic behavior to the system. In this paper, the authors proposed two contributions: first, developing the model of the high-speed micro-turbine to obtain the optimum controller parameter of MT governor by an optimizing PI speed controller of MTG using GA-PI. Second, it is designing the bidirectional AC to Dc converter based SVPWM, the reason of an employed bidirectional converter here because the author had proposed the dc micro grid that is attached to dc link of rectified MTG power, so, during normal condition, the MTG can provide the dc micro grid and provided the AC main grid with it full power, while when the dc micro grid demand has become bigger than MTG full load, the bidirectional draw power from grid and supplied the dc load demand as well as this converter responsible to stabilize the dc link and extract the full power from MTG. Furthermore, the author proposed extra AC link from the grid to running the MTG during startup mode (motor mode of PMSG) so not need to bidirectional power electronic interface in machine side converter. By used MATLAB/ Simulink as implementation software. 
Xu, B; 
2nd Joint International Information Technology, Mechanical and Electronic Engineering Conference (JIMEC) 
Chongqing, PEOPLES R CHINA