Small-Disturbance Voltage Stability of Distribution Systems With Induction Generators

Author

Freitas, Walmir ; Da Silva, Luiz C P ; Morelato, Andre

Author_Institution

Dept. of Electr. Energy Syst., State Univ. of Campinas, Brazil

Volume

20

Issue

3

fYear

2005

Firstpage

1653

Lastpage

1654

Abstract

This letter presents an investigation about the small-disturbance voltage stability of distribution systems with induction generators by using time-domain nonlinear dynamic simulations. Results show that the presence of induction generators may decrease the system voltage stability margin. It was verified that at the maximum loading point, if the system loading is increased even more, then the induction generator accelerates to a high speed, becoming unstable and leading the system to a voltage collapse.

Keywords

asynchronous generators; nonlinear dynamical systems; power distribution faults; power supply quality; power system stability; time-domain analysis; distribution systems; induction generators; maximum loading point; small-disturbance voltage stability; time-domain nonlinear dynamic simulations; voltage collapse; Acceleration; Circuit simulation; Impedance; Induction generators; Nonlinear dynamical systems; Rotors; Stability; Time domain analysis; Transformers; Voltage; Distributed generation; distribution system; induction generator; small-disturbance voltage stability;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/TPWRS.2005.852136

Filename

1490621