استفاده از MVNO برای تنظیم بهینه رگولاتور خطی درجه دوم برای DFIG-WT
|کد مقاله||سال انتشار||مقاله انگلیسی||ترجمه فارسی||تعداد کلمات|
|56199||2015||6 صفحه PDF||سفارش دهید||4851 کلمه|
Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : IFAC-PapersOnLine, Volume 48, Issue 30, 2015, Pages 479–484
The linear quadratic regulator (LQR) controller is used to enhance the low voltage ride through (LVRT) of doubly-fed induction generator based wind turbines (DFIG-WT). A heuristic optimization method, which is MVMO, is used for optimal design of the LQR weighting matrices Q and R. The objective function of the optimization problem is to minimize the peak short-circuit current and the associated time constants. In order to have realistic values the MVMO problem was constrained by the maximum available machine side converter in order to avoid over-modulation during fault periods. Additionally, the minimum threshold of the stator voltage that will lead to disconnection of the DFIG-WT was considered as a constraint. The results show that the new proposed controller enhanced the LVRT.