SMART TRANSMISSION GRID 1
Smart Transmission System Wide application of HVDC/ FACTS Wide Area Monitoring & Protection New Technologies: Substation Automation System (SAS/ DCS), High Temperature Conductors Widespread sensors and new applications: online gas monitoring devices, line sag sensor, Reliability Centered Maintenance, Asset Management, Dynamic Rating, Adaptive Protection, Islanding, Distributed Control 2
Smart Transmission System (HVAC/ UHVDC) 3
ABB smart SF6 CB health monitoring device 4
Conventional Protection/ Equipment Protection Applied to Equipments: Generators, Lines, Buses, Feeders, Transformers, Reactors, Capacitors, … Objective: to disconnect/ trip the equipment In order to: limit the damaging effects and continuing service to the rest of the system Limited communication support 5
Wide Area Protection 6
Wide Area Measurement/ Protection 7
WAMS Vs. SCADA 8 Phase Angle Monitoring Voltage Stability Monitoring Power Oscillation Monitoring
WAMS Vs. SCADA (Dynamic Monitoring) 9
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WAMS Vs. SCADA (Dynamic Monitoring) 11
WAMS Vs. SCADA (Dynamic Monitoring) 12
WAMS application example: Voltage Instability 13 Early warning Emergency alarm Normal Operation Benefit: Early warning against voltage collapses, Immediate stop of cascading effects, and Protection against uprising voltage instabilities.