Low voltage ride through performance of a 4MVA synchronous generator - measurements and simulations

Complying with grid code requirements for low voltage ride through is a challenge for generator sets (GenSets). The generator experiences a short circuit at the beginning of the fault and then goes through severe recovery processes. It is shown that in some cases grid voltage recovery induces 25% hi...

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Bibliographic Details
Published in7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014) p. 0497
Main Authors Narayanan, S, Mebarki, A, Brown, N.L
Format Conference Proceeding
LanguageEnglish
Published Stevenage, UK IET 2014
The Institution of Engineering & Technology
Subjects
Reliability
Synchronous machines
fault diagnosis
power generation reliability
generator sets
apparent power 4 MVA
GenSets
short-circuit currents
grid voltage recovery
LVRT
synchronous generators
short circuit decrement test
grid code requirements
low voltage ride through performance
power grids
Matlab model parameter calibration
calibration
synchronous generator
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Summary:Complying with grid code requirements for low voltage ride through is a challenge for generator sets (GenSets). The generator experiences a short circuit at the beginning of the fault and then goes through severe recovery processes. It is shown that in some cases grid voltage recovery induces 25% higher peak current that the short circuit peak current for a 4MVA 1500rpm synchronous generator. Short circuit decrement tests are used to calibrate the Matlab model parameters and then extensive numbers of simulations are carried out to show the impact of LVRT on a large synchronous generator.
ISBN:1849198152
9781849198158
DOI:10.1049/cp.2014.0501