Title :
Long-term voltage stability of distribution systems with induction generators
Author :
Freitas, Walmir ; Vieira, Jose C M ; da Suva, L.C.P. ; Affonso, Carolina M. ; Morelato, Andre
Author_Institution :
Dept. of Electr. Energy Syst., Campinas State Univ., Brazil
Abstract :
This paper presents an investigation about the longterm or 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 in 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; distributed power generation; power distribution faults; power system stability; time-domain analysis; distribution systems; induction generators; long-term voltage stability; small disturbance voltage stability; system voltage stability margin; time-domain nonlinear dynamic simulations; voltage collapse; Acceleration; Circuit simulation; Impedance; Induction generators; Nonlinear dynamical systems; Rotors; Stability analysis; Time domain analysis; Transformers; Voltage;
Conference_Titel :
Power Engineering Society General Meeting, 2005. IEEE
Print_ISBN :
0-7803-9157-8
DOI :
10.1109/PES.2005.1489419
