Title :
On design of a robust load frequency controller for interconnected power systems
Author :
Lili Dong ; Yao Zhang
Author_Institution :
Dept. of Electr. & Comput. Eng., Cleveland State Univ., Cleveland, OH, USA
fDate :
June 30 2010-July 2 2010
Abstract :
A novel design of a robust decentralized load frequency controller (LFC) is proposed for an inter-connected three-area power system, for the purpose of regulating area control error (ACE) in the presence of uncertainties in system dynamics and external disturbances. The design is based on the concept of active disturbance rejection control (ADRC). Estimating and mitigating the total effect of various uncertainties in real time, ADRC is particularly effective against a wide range of parameter variations, model uncertainties, and large disturbances. Furthermore, with only two tuning parameters, the controller provides a simple, easy-to-use solution to complex engineering problems in practice. Here, an ADRC-based LFC solution is developed for the power systems with turbines of various types, such as non-reheat, reheat, and hydraulic. The simulation results verified the effectiveness of the ADRC.
Keywords :
load regulation; power system control; power system interconnection; robust control; active disturbance rejection control; area control error; external disturbances; interconnected power systems; interconnected three-area power system; robust decentralized load frequency controller; robust load frequency controller; system dynamics; Control systems; Frequency; Power system control; Power system dynamics; Power system interconnection; Power system modeling; Power system simulation; Power systems; Robust control; Uncertainty; ACE; ADRC; LFC; inter-connected power system; robustness; stability;
Conference_Titel :
American Control Conference (ACC), 2010
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-7426-4
DOI :
10.1109/ACC.2010.5531492
