Title :
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
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;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2005.852136
