Open AccessNovel application of integral‐tilt‐derivative controller for performance evaluation of load frequency control of interconnected power system
Author(s) -
Kumari Sandhya,
Shankar Gauri
Publication year - 2018
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2018.0345
Subject(s) - control theory (sociology) , automatic frequency control , robustness (evolution) , automatic generation control , controller (irrigation) , electric power system , computer science , sensitivity (control systems) , frequency deviation , governor , control engineering , power (physics) , engineering , electronic engineering , control (management) , telecommunications , physics , quantum mechanics , artificial intelligence , biology , agronomy , biochemistry , chemistry , aerospace engineering , gene
The primary aim of load frequency control (LFC) is to provide a good quality of electrical power to the consumers within a prescribed limit of frequency and scheduled tie‐line power deviation. To achieve this objective, LFC needs highly efficient and intelligent control mechanism. Subsequently, here, a novel integral‐tilt‐derivative (I‐TD) controller, fine‐tuned by a powerful heuristic optimisation technique [called as water cycle algorithm (WCA)], is proposed for the LFC study of a two‐area interconnected thermal‐hydro‐nuclear generating units. The studied system involves non‐linearities like generation rate constraints, governor dead band, and boiler dynamics. To explore the effectiveness of the proposed controller, dynamic responses of the studied system, as obtained using I‐TD controller, are compared to those yielded by other controllers such as tilt‐integral‐derivative and conventional proportional–integral–derivative controllers. The investigation demonstrates that the proposed I‐TD controller delivers better performance in comparison to the other counterparts. Furthermore, sensitivity analysis is carried out to show robustness of the WCA tuned proposed I‐TD controller by varying system parameters and loading condition. It is perceived that the proposed I‐TD controller is robust and offers better transient response under varying operating conditions.