Design of Robust PSS to Improve Stability of Composed LFC and AVR Using ABC in Deregulated Environment
نویسندگان
چکیده
This paper presents the robust design of a Power System Stabilizer (PSS) to improve the stability in the composed two-area Load Frequency Control (LFC) and Automatic Voltage Regulator (AVR) using Artificial Bee Colony (ABC) in a restructured environment. The coupling effects of the LFC and AVR loops are studied by extending the linearized Automatic Generation Control (AGC) system to include the excitation system. The proposed method is tested on the two-area power system. The simulation results show that adding a coordinative PSS on this model can improve the dynamic stability of the power system and effectively suppresses the low frequency oscillation. The effectiveness of the proposed method is compared with twoarea system in a deregulated environment without AVR using Particle Swarm Optimization (PSO) and Genetic Algorithm (GA) techniques. Keywords; Artificial Bee Colony, PSS, Load Frequency Control, AVR, Two-Area Power System.
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