Title :
Iterative linear matrix inequality algorithm based decentralized controller for load frequency control of two-area thermal power systems
Author :
Pandey, S.K. ; Mohanty, Soumya R. ; Kishor, Nand ; Payasi, R.P.
Author_Institution :
Dept. of Electr. Eng., Motilal Nehru Nat. Inst. of Technol. Allahabad, Allahabad, India
Abstract :
In this paper, iterative linear matrix inequalities (ILMI) algorithm based design of decentralized controller for load frequency control (LFC) is proposed. The ILMI algorithm is used to tune the control parameters of the proportional-integral-derivative (PID) controller subject to H∞ constraints in terms of ILMI. Hence, the control design is called IPIDH∞ controller. The proposed controller is tested on a two-area interconnected power system considering reheat type turbine in both area with different load scenarios. The results of the proposed controller are compared with the H∞-controller. From the simulation results, the proposed controller is superior to H∞-controller.
Keywords :
H∞ control; control system synthesis; decentralised control; frequency control; iterative methods; linear matrix inequalities; power generation control; power system interconnection; thermal power stations; three-term control; ILMI algorithm based design; IPIDH∞ controller; LFC; control parameters; decentralized controller; iterative linear matrix inequality algorithm; load frequency control; proportional-integral-derivative controller; reheat type turbine; two-area interconnected power system; two-area thermal power systems; Frequency control; H infinity control; Linear matrix inequalities; Power systems; Robustness; Simulation; Time-frequency analysis; Interconnected power systems; iterative linear matrix inequalities; load frequency control; reheat turbine; robust controller;
Conference_Titel :
Power, Energy and Control (ICPEC), 2013 International Conference on
Conference_Location :
Sri Rangalatchum Dindigul
Print_ISBN :
978-1-4673-6027-2
DOI :
10.1109/ICPEC.2013.6527695
