The disturbance source identification of forced power oscillation caused by continuous cyclical load

Author

Yu, Yiping ; Min, Yong ; Chen, Lei ; Ju, Ping

Author_Institution

Coll. of Energy & Electr. Eng., Hohai Univ., Nanjing, China

fYear

2011

fDate

6-9 July 2011

Firstpage

308

Lastpage

313

Abstract

The continuous cyclical load disturbances can lead to forced power oscillations of power systems. Based on the single-machine infinite-bus system, the differences in the energy conversion characteristics between the forced power oscillation and the weak damping free oscillation are analyzed and the mechanism of the forced power oscillation caused by cyclical load disturbances is presented. Using energy functions with the linear equations of motion of the rotor, the basic principles to identify the cyclical load disturbance source location of the forced power oscillation are analyzed in energy perspective. The simulation results of the New England 10-machine 39-bus system indicate the feasibility and validity of the proposed method.

Keywords

damping; oscillations; power system faults; rotors; New England 10-machine 39-bus system; continuous cyclical load; damping free oscillation; disturbance source identification; energy conversion characteristics; forced power oscillation; linear equations of motion; power system; rotor motion; single-machine infinite-bus system; Damping; Generators; Oscillators; Potential energy; Power system stability; Rotors; Continuous cyclical load; Disturbance source identification; Energy function; Forced power oscillation; Low frequency oscillation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011 4th International Conference on

Conference_Location

Weihai, Shandong

Print_ISBN

978-1-4577-0364-5

Type

conf

DOI

10.1109/DRPT.2011.5993908

Filename

5993908