Volume 15, Issue 2 (2015)                   MJEE 2015, 15(2): 50-54 | Back to browse issues page

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Gashas E, Vasegh N. Decentralized Load Frequency Control Using Local Sliding Mode Observers with Unknown Inputs. MJEE 2015; 15 (2) :50-54
URL: http://mjee.modares.ac.ir/article-17-11108-en.html
1- Department of Engineering, Science and Research Branch, Islamic Azad University, Hesarak, Tehran, Iran
2- Electrical Engineering Faculty, Shahid Rajaee Teacher Training University, Lavizan, Tehran, Iran21 22970065(2545) Fax +9821 22970006
Abstract:   (4490 Views)
This paper presents a new load frequency control (LFC) design in a multi area power system by using local observers. Firstly, sliding mode observers with unknown inputs are designed for each area to estimate the state variables locally. In this stage interconnections and load variations are assumed as unknown inputs. Then, local state feedback and output integral are used to attenuate the effect of load variations in each area. Analysis and simulation results for a three-area interconnected power system show improvements on closed loop performance in comparisons with other existing methods.
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Received: 2016/08/20 | Accepted: 2016/09/18 | Published: 2038/01/19

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