Performance enhancement of ADRC using RC for load frequency control of power system

Author

Sayem, A.H.M. ; Zhenwei Cao ; Zhihong Man

Author_Institution

Fac. of Eng. & Ind. Sci., Swinburne Univ. of Technol., Melbourne, VIC, Australia

fYear

2013

fDate

19-21 June 2013

Firstpage

433

Lastpage

438

Abstract

An effective decentralized load frequency controller (LFC) is proposed for an inter-connected two-area power system, for the purpose of regulating area control error (ACE) in the presence of uncertainties in system dynamics and external disturbances. The design is based on the concept of active disturbance rejection control (ADRC) with repetitive controller (RC). Estimating and mitigating the total effect of various uncertainties in real time, ADRC with RC is particularly effective against a wide range of parameter variations, model uncertainties, and large disturbances. Furthermore, with only two tuning parameters, the controller provides a simple, easy-to-use solution to complex engineering problems in practice. Here, an ADRC with RC-based LFC solution is developed for the power systems with non-reheat and reheat turbines. The simulation results verified the effectiveness of the ADRC with RC.

Keywords

control system synthesis; frequency control; load regulation; power system control; power system interconnection; robust control; steam turbines; uncertain systems; ACE; ADRC; LFC; active disturbance rejection control; area control error regulation; complex engineering problems; decentralized load frequency controller; external disturbances; interconnected two-area power system; large disturbances; model uncertainties; nonreheat turbines; parameter variations; performance enhancement; reheat turbines; repetitive controller; system dynamics; total uncertain effect estimation; total uncertain effect mitigation; tuning parameters; Frequency control; Power system dynamics; Power system stability; Transfer functions; Turbines; Uncertainty; ACE; ADRC; LFC; RC;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ICIEA), 2013 8th IEEE Conference on

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4673-6320-4

Type

conf

DOI

10.1109/ICIEA.2013.6566408

Filename

6566408