Partial feedback linearizing controller design for a DSTATCOM to enhance voltage stability of distribution network with distributed generation

Author

Mahmud, M.M.A. ; Pota, Hemanshu R. ; Hossain, Md Jahangir

Author_Institution

Sch. of Eng. & Inf. Technol. (SEIT), Univ. of New South Wales, Canberra, ACT, Australia

fYear

2012

fDate

Oct. 30 2012-Nov. 2 2012

Firstpage

1

Lastpage

6

Abstract

This paper presents a nonlinear controller design for a DSTATCOM connected to a distribution network with distributed generation (DG) to regulate the line voltage by providing reactive power compensation. The controller is designed based on the partial feedback linearization which transforms the nonlinear system into a reduced order linear system and an autonomous system whose dynamics are known as internal dynamics of the system. This paper also investigates the stability of internal dynamics of a DSTATCOM as it is a basic requirement to design partial feedback linearizing controllers. The performance of the proposed controller is evaluated in terms reactive power compensation to enhance the voltage stability of distribution networks with DG.

Keywords

distributed power generation; distribution networks; feedback; nonlinear control systems; power generation control; static VAr compensators; voltage regulators; DG; DSTATCOM; autonomous system; distributed generation; distribution network; internal dynamics; nonlinear system; partial feedback linearizing controller design; reactive power compensation; voltage stability enhancement; Equations; Inverters; Transforms; Voltage control; DSATACOM; Distributed generation; distribution network; partial feedback linearization; voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology (POWERCON), 2012 IEEE International Conference on

Conference_Location

Auckland

Print_ISBN

978-1-4673-2868-5

Type

conf

DOI

10.1109/PowerCon.2012.6401371

Filename

6401371