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

fYear

2013

fDate

6-8 Feb. 2013

Firstpage

431

Lastpage

436

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power, Energy and Control (ICPEC), 2013 International Conference on

Conference_Location

Sri Rangalatchum Dindigul

Print_ISBN

978-1-4673-6027-2

Type

conf

DOI

10.1109/ICPEC.2013.6527695

Filename

6527695