DocumentCode :
2358528
Title :
Stability of voltage and frequency control in distributed generation based on parallel-connected converters feeding constant power loads
Author :
Karlsson, Per ; Bjornstedt, Johan ; Strom, Magnus
Author_Institution :
Dept. of Industrial Electr. Eng., Lund Univ.
fYear :
2005
fDate :
11-14 Sept. 2005
Abstract :
In this paper stability and dynamic properties of voltage and frequency droop control of power electronic converters are investigated for a distributed generation system. Droop control is utilized to share active and reactive power among the source converters. The voltage and frequency controllers are designed so that stand-alone converter operation feeding constant power loads performs satisfactory. These controllers are adapted to mimic the behaviour of present rotating generators connected directly to the power system, for seam-less transfer between island and grid-connected modes of operation. Small-signal and switch-mode, time-domain simulation results of a three-converter distributed generation system facilitating stand-alone operation verify the operation. Experimental results of a three-converter stand-alone system are also included for verification
Keywords :
control system synthesis; distributed power generation; frequency control; power distribution control; power generation control; power grids; power system interconnection; reactive power; switching convertors; time-domain analysis; voltage control; active power; distributed generation systems; frequency controller design; frequency droop control; parallel-connected converters; power electronic converters; power loads; reactive power; rotating generators; stand-alone converter operation; three-converter stand-alone system; time-domain simulation; voltage stability; Control systems; Distributed control; Frequency control; Frequency conversion; Mesh generation; Power electronics; Power system simulation; Power system stability; Reactive power control; Voltage control; Converter control; Distributed power; Distribution of electrical energy; Renewable energy systems;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
Type :
conf
DOI :
10.1109/EPE.2005.219405
Filename :
1665595
Link To Document :
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