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.
Gashas,E. and Vasegh,N. (2015). Decentralized Load Frequency Control Using Local Sliding Mode Observers with Unknown Inputs. The Modares Journal of Electrical Engineering, 15(2), 50-54.
MLA
Gashas,E. , and Vasegh,N. . "Decentralized Load Frequency Control Using Local Sliding Mode Observers with Unknown Inputs", The Modares Journal of Electrical Engineering, 15, 2, 2015, 50-54.
HARVARD
Gashas,E.,Vasegh,N. (2015). 'Decentralized Load Frequency Control Using Local Sliding Mode Observers with Unknown Inputs', The Modares Journal of Electrical Engineering, 15(2), pp. 50-54.
CHICAGO
E. Gashas and N. Vasegh, "Decentralized Load Frequency Control Using Local Sliding Mode Observers with Unknown Inputs," The Modares Journal of Electrical Engineering, 15 2 (2015): 50-54,
VANCOUVER
Gashas,E.,Vasegh,N. Decentralized Load Frequency Control Using Local Sliding Mode Observers with Unknown Inputs. The Modares Journal of Electrical Engineering, 2015; 15(2): 50-54.
The Modares Journal of Electrical Engineering