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Islanding detection scheme for Induction generator of wind turbine

Islanding detection scheme for Induction generator of wind turbine

Islanding detection scheme for Induction generator of wind turbine

(OP)
Would a simple Rate of Change of frequency Relay enough for detecting islanding condition for wind turbine application which uses Induction generators. Can we detect power mismatch in this application?

RE: Islanding detection scheme for Induction generator of wind turbine

I would think so. After all most wind turbines that I know of can't ramp up generation to keep the frequency within a bandwith.

So if you can't keep the frequency in bandwith, what will happen?
Also voltage would be another way to detect islanding, although much slower than frequency.

RE: Islanding detection scheme for Induction generator of wind turbine

Measuring the frequency change is not enough.
You can / must look also to the vector shift and voltage change.
It depends on the country (Energy board and regulations of that country) how a islanding situation has to be measured. Good example is the G59 regulations in the UK.
Look for measuring devices which can detect islanding situations the MFR relays of Woodward.
 

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