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WAMS in China - Epcc-workshop.net

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Assessment of oscillation<br />

� Scan all transmitt<strong>in</strong>g power<br />

under normal state.<br />

� If oscillation power > 10MW<br />

and duration > 5 oscillat<strong>in</strong>g<br />

cycles, the event is registered.<br />

� Statistics shows: oscillation<br />

with poor damp<strong>in</strong>g will have<br />

more events.<br />

� The assessment successfully<br />

predicts dangerous oscillation<br />

event before its real<br />

occurrence.<br />

Osc.events distrubition<br />

Freq. -- Event<br />

Real power -- Event

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