DE optimized fuzzy PID controller with derivative filter for LFC of multi source power system in deregulated environme

Ain Shams Engineering Journal

关键词: Load Frequency Control (LFC);    Differential Evolution algorithm (DE);    Fuzzy Logic Controller (FLC);    Generation Rate Constraint (GRC);    HVDC link;    Sensitivity analysis;   

DOI  :  10.1016/j.asej.2014.12.009

来源: DOAJ

【 摘 要 】

In this paper, Differential Evolution (DE) optimized fuzzy PID controller with derivative Filter (PIDF) is proposed for Load Frequency Control (LFC) of a deregulated power system with multi-source power generation and interconnected via parallel AC/DC transmission links. To get an accurate insight of the LFC problem, important physical constraints such as time delay and GRC are considered. The performance of proposed controller is evaluated at all possible power transactions that take place in a deregulated power market. The improvement in dynamic performance of the power system with DC link in parallel with AC tie-line is also assessed. Further, sensitivity analysis is performed by varying the system parameters and operating load conditions from their nominal values. It is observed from the simulation results that the optimum gains of the proposed controller need not be reset even if the system is subjected to wide variation in loading condition and system parameters.

【 授权许可】

Unknown