Analysis of voltage sags on the installation of distributed generation in the distribution system
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Date
2018-09-22Author
Chalangsut, Aroon
Rugthaicharoencheep, Nattachote
อรุณ ชลังสุทธิ์
นัฐโชติ รักไทยเจริญชีพ
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This research presents an Analysis of Voltage Sags on the Installation of
Distributed Generation in the Distribution System. The computer program
PSCAD/EMTDC (Power Systems Computer Aided Design / Electromagnetic Transient in
DC system) version 4.2 is applied to provide electrical parameters for the modeling
and simulation and to analyze the fault occurred which resulted in voltage sag.
Test results from PSCAD/EMTDC show the values of voltage sag when 5 types
of fault are occurred (Single Line to Ground Fault, Double Line to Ground Fault, Three
Phase to Ground Fault, Line to Line Fault and Three Phase Fault). For all cases, the
value of root mean square voltage before fault is 100% or 1.0 pu. It can be seen that
for both radial line and closed circuit, when DG are installed in the system, the value
of phase to ground RMS residual voltage and phase to phase RMS residual voltage at
the bus of Bang-pa-in 2 substation are more than the values in case of the system
without DG.
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- Research Report [286]