Introduction to the IEC 61850 electrical utility communication ... - EPFL
Introduction to the IEC 61850 electrical utility communication ... - EPFL
Introduction to the IEC 61850 electrical utility communication ... - EPFL
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© 2012 ABB Switzerland Ltd Corporate Research ABBCH-RD<br />
<strong>Introduction</strong> <strong>to</strong><br />
<strong>IEC</strong> <strong>61850</strong><br />
GOOSE: event-driven real-time <strong>communication</strong><br />
event<br />
T0 (T0) T1T1 T2 T3<br />
T0 T0<br />
T0 retransmission in stable conditions (no event for a long time).<br />
(T0) retransmission in stable conditions may be shortened by an event.<br />
T1 shortest retransmission time after <strong>the</strong> event.<br />
T2, T3 retransmission times until achieving <strong>the</strong> stable conditions time.<br />
(<strong>the</strong> value of <strong>the</strong>se times is an application issue)<br />
Used <strong>to</strong> transmit <strong>to</strong> all o<strong>the</strong>r bays a state change (e.g. switch closing)<br />
Publisher-Subscriber (Source addressed)<br />
Uses multicast on layer 2<br />
( <strong>IEC</strong> <strong>61850</strong>-8-1 )<br />
44
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