Application of stator current limiter: Impact during system voltage decrease

Author

Kutzner, R. ; Losing, M. ; Seeger, U. ; Wenzel, A.

Author_Institution

Fac. of Electr. Eng. & Inf. Technol., Univ. of Appl. Sci., Hannover, Germany

fYear

2013

fDate

21-25 July 2013

Firstpage

1

Lastpage

5

Abstract

This paper describes the impact of limiters of generator excitation systems during a grid voltage decrease. It explains an example showing that a voltage decrease is getting more likely in particular in power systems with increased load flow. The over excitation limiter may not be sufficient to keep the generator operated inside the reactive capability diagram. A model of a stator current limiter is explained and the additional effect of this limiter is simulated. In addition, restrictions of this limiter and of terminal voltage are discussed.

Keywords

current limiters; electric generators; load flow; power grids; stators; generator excitation systems; grid voltage; over excitation limiter; power systems; reactive capability diagram; stator current limiter; system voltage; terminal voltage; Educational institutions; Generators; Power system stability; Reactive power; Stator windings; Turbines; AVR; excitation control system; generator; limiter; power system; voltage stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting (PES), 2013 IEEE

Conference_Location

Vancouver, BC

ISSN

1944-9925

Type

conf

DOI

10.1109/PESMG.2013.6672701

Filename

6672701