This topic was presented at the PSCAD Conference held October 6-7, 2016 in Houston, Texas.
Overview: A 200 MW DFIG wind farm is experiencing nuisance tripping. These occur during switching of power factor correction cap banks comprising of 4×12 MVAR connected to the farm’s 34.5 KV collector buses. Trip signals recorded by WTGs indicate power quality issues. Harmonic distortion study of the Project did not indicate potential violations.
A more detailed analysis indicated presence of interharmonics. The pdf file below presents the modeling, analysis and findings of the assessment. Simulations were conducted using the PSCAD/EMTDC software, commercial product of Manitoba Hydro.
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