The source and damping of local (cc. 1.2 Hz) and inter area (0.02…0.6) Hz oscillations

Author

Kiss, Lajos ; Zerényi, József

Author_Institution

Tech. Univ. of Budapest, Budapest

fYear

2005

fDate

27-30 June 2005

Firstpage

1

Lastpage

6

Abstract

Our ten years´ experience has showed that a PSS realized by first order controlling stages is not efficient in 0.02...0.6 Hz frequency domain. In addition, these instruments have a disadvantage: damping the active power oscillations are the source of reactive power oscillations, which are exported into the network. So a PSS tuned 0.25 Hz are rejected by experts of power plants. This paper describes our method, revealing the source of the cc. 0.25 Hz frequency oscillations, and damping these by using a supplementary stage installed into the turbine governor. Damping oscillations in a lower frequency range we propose an appropriate setting of the turbine Static Load Frequency characteristics.

Keywords

power system stability; reactive power; active power oscillations damping; damping oscillations; interarea oscillations; power plants; turbine governor; turbine static load frequencies; Control systems; Damping; Frequency; Power generation; Power systems; Pressure control; Servomechanisms; Servomotors; Tuning; Turbines; Constructing and Tuning of PSS; Damping of active power oscillations; Excitation systems; Inter-area oscillations; Large electric systems cooperation; Power System Stabilizer (PSS); Turbine governor systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Tech, 2005 IEEE Russia

Conference_Location

St. Petersburg

Print_ISBN

978-5-93208-034-4

Electronic_ISBN

978-5-93208-034-4

Type

conf

DOI

10.1109/PTC.2005.4524353

Filename

4524353