Title :
Study on Electrical Braking of Huge Hydro-generator
Author :
Ge Baojun ; Fu Yunqing ; Lv Yanling ; Wang Ming
Author_Institution :
Harbin Univ. of Sci. & Technol., Harbin, China
Abstract :
In this paper, based on the relationship of the losses and rotor speed of generator, the braking time formula with the braking mode of the hydro-generator stator three-phase short-circuit is obtained within considering the stray losses. The breaking times at different braking currents and different input speeds about a 1000 MW hydro-generator are calculated. The results prove that it is feasible and superior to brake the huge hydro-generator with the mode of stator three-phase short-circuit, and also give some references for the actual operation of generators in the future.
Keywords :
braking; hydroelectric generators; braking time formula; electrical braking; huge hydrogenerator; power 1000 MW; rotor speed; stray losses; three-phase short-circuit; Circuits; Copper; DC generators; Kinetic energy; Petroleum; Rotors; Stator windings; Switches; Torque; Voltage;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5449022
