کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10400157 | 890890 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A variable-structure adaptive fuzzy-logic stabilizer for single and multi-machine power systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی هوافضا
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چکیده انگلیسی
This paper proposes a new power system stabilizer based on adaptive fuzzy systems. The new controller is a fuzzy-logic-based stabilizer that has the capability to adaptively tune its rule-base on line. The change in the fuzzy rule base is done using a variable-structure direct adaptive control algorithm to achieve the pre-defined control objectives. This algorithm has two merits. First, it has a good performance in the training phase as it makes use of the initial rule base defined for the fuzzy logic stabilizer. Second, it has a robust estimator since it depends on a variable structure technique. The adaptive nature of the new controller significantly reduces the rule base size and improves its performance. This statement is confirmed by simulation results of a single-machine infinite-bus system under different operating points and exposed to both small and large disturbances. Extension to the multi-machine case is also included to illustrate the effectiveness of the proposed stabilizer in damping oscillations that follow a three-phase to ground short circuit.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Control Engineering Practice - Volume 13, Issue 4, April 2005, Pages 413-423
Journal: Control Engineering Practice - Volume 13, Issue 4, April 2005, Pages 413-423
نویسندگان
A.L. Elshafei, K.A. El-Metwally, A.A. Shaltout,