TY - JOUR ID - 71472 TI - A New Class of Decentralized Interaction Estimators for Load Frequency Control in Multi-Area Power Systems JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Menhaj, M.B. AU - Kazemi, M.H. AU - Karrari, M. AD - Electrical Engineering, Amirkabir University of Technology AD - Electerical Engineering, Shahed University AD - Electerical Engineering, Amirkabir University of Technology Y1 - 2003 PY - 2003 VL - 16 IS - 4 SP - 347 EP - 356 KW - Multi Area Power System KW - Load Frequency Control KW - Large Scale Systems KW - Estimation DO - N2 - Load Frequency Control (LFC) has received considerable attention during last decades. This paper proposes a new method for designing decentralized interaction estimators for interconnected large-scale systems and utilizes it to multi-area power systems. For each local area, a local estimator is designed to estimate the interactions of this area using only the local output measurements. In fact, these interactions are the information of other area. A new scheme is developed to construct an approximate model for the interaction dynamics and design a local estimator. The designed local estimator exploits the model of each area and its actual inputs and outputs to produce a good estimation of unknown states and interactions. It is shown that in the proposed method the errors of estimation are globally ultimately bounded with respect to a specific bound. Our scheme is used to design decentralized estimator for a three-area power system to illustrate the effectiveness of the proposed method. UR - https://www.ije.ir/article_71472.html L1 - https://www.ije.ir/article_71472_d7f783096621077673cf3dc0b6de1bd0.pdf ER -