Title :
Decentralized H∞ load frequency control using LMI control toolbox
Author :
Rerkpreedapong, D. ; Feliachi, A.
Author_Institution :
Lane Dept. of Comput. Sci. & Electr. Eng., West Virginia Univ., Morgantown, WV, USA
Abstract :
In this paper, a decentralized controller for the load frequency control (LFC) problem in power systems is designed based on a robust H∞ control technique formulated as a Linear Matrix Inequalities (LMI) problem. To achieve decentralization, interfaces between interconnected power system\´s control areas are treated as disturbances. The LMI control toolbox is used to solve such a constrained optimization problem for LFC applications. The robust performance of the proposed controller is illustrated and compared with that of a conventional controller through simulation of a two-area power system with a variety of disturbances. Results show that H∞ control technique via the LMI approach is an ideal tool for decentralized load frequency control design.
Keywords :
H∞ control; closed loop systems; decentralised control; frequency control; linear matrix inequalities; optimisation; power generation control; power system interconnection; robust control; state-space methods; LMI control toolbox; constrained optimization problem; decentralized H∞ load frequency control; decentralized controller; disturbances; interconnected power system control; linear matrix inequalities problem; robust H∞ control technique; two-area power system; Constraint optimization; Control design; Control system synthesis; Control systems; Design optimization; Frequency control; Power system control; Power system interconnection; Power system simulation; Robust control;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205043
