An energy approach to analysis of interarea oscillations in power systems

Author

Jing, C. ; McCalley, James D. ; Kommareddy, M.

Author_Institution

Siemens Empros Power Syst. Control, Plymouth, MN, USA

Volume

11

Issue

2

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

734

Lastpage

740

Abstract

In this paper, an energy approach to analysis of interarea oscillations (IAO) in power systems has been developed. IAO is characterized as oscillatory behavior, following a disturbance, of the rotor motion for two or more generator groups such that there is a periodic interchange of energy between them. By comparing the phase of the coefficient of the dominant energy mode in the kinetic energy for each generator, we identify the groups for which there are periodic interchanges of energy. The location of these groups in the system provides insight regarding transmission lines over which the energy interchange is taking place. Numerical results are obtained using a test system similar in structure and characteristics to that of the WSCC system in North America. Time domain simulation indicates installation of thyristor controlled series capacitors in key transmission lines identified using the results of the energy analysis provides an effective control for damping IAO

Keywords

circuit oscillations; electrical faults; machine theory; power system analysis computing; power system interconnection; rotors; time-domain analysis; computer simulation; disturbance; dominant energy mode coefficient; energy approach; generator groups; interarea oscillations analysis; kinetic energy; oscillatory behavior; periodic energy interchange; power systems; rotor motion; thyristor controlled series capacitors; time-domain simulation; transmission lines; Analytical models; Character generation; Kinetic energy; North America; Power system analysis computing; Power transmission lines; Rotors; System testing; Thyristors; Time domain analysis;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.496147

Filename

496147