Title :
Effect of Embedded Induction Generators on Short-Circuit Detection
Author :
Vermeyen, Pieter ; Driesen, Johan ; Belmans, Ronnie ; Van adommelen, D.
Author_Institution :
Dept. of Electr. Eng., Katholieke Univ., Leuven
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
The application of embedded generators in distribution grids has consequences for the protection systems. A general approach is described for assessing the impact of induction generators on the detected short-circuit current in a distribution feeder. A simple system is simulated for a large number of parameter variations. The goal is to find those system configurations for which the negative impact on short-circuit detection is strongest. First, the simulated system is described and the calculation and choice of the parameters of this system are discussed. The parameters of concern are: short-circuit power of the grid, cross-sectional area of the cable conductors, location of the generator, power of the generator and minimum short-circuit current. Next, the simulation results are discussed. It is found that an induction generator does not pose a problem for detection of three-phase and double line-to-ground faults when one feeder is considered. With line-to-line faults and single line-to-ground faults, problems may occur. The significance of an additional parameter is discussed: the number of generators
Keywords :
asynchronous generators; distributed power generation; power distribution faults; power distribution protection; cable conductors; distribution grid; double line-to-ground faults; embedded induction generators; protection systems; short-circuit detection; Circuit faults; Distributed power generation; Electrical fault detection; Fault detection; Induction generators; Mathematical model; Mesh generation; Power generation; Power system protection; Voltage;
Conference_Titel :
Power Systems Conference and Exposition, 2006. PSCE '06. 2006 IEEE PES
Conference_Location :
Atlanta, GA
Print_ISBN :
1-4244-0177-1
Electronic_ISBN :
1-4244-0178-X
DOI :
10.1109/PSCE.2006.296502