SALS – Smart Adaptive Load Shedding · SALS – Smart Adaptive Load Shedding Bakhtyar Hoseinzadeh...
Transcript of SALS – Smart Adaptive Load Shedding · SALS – Smart Adaptive Load Shedding Bakhtyar Hoseinzadeh...
SALS – Smart Adaptive Load Shedding
Bakhtyar Hoseinzadeh
27 February 2017
Renewable Energy Sources Power System Stability Decentralized Protection Blackout
Presentation outline
SALS Introduction
Offline Simulation
Real Time Simulation
Project Objectives & Deliveries
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Field test
Conclusion
Project Partners
3[1] http://www.sals.et.aau.dk/
Project Team Members
4[1] http://www.sals.et.aau.dk/
Project Objectives
Enhancing the stability of power system
Ready for any scenarios (+ renewables -)
Minimizing costumer power interruption during emergency state
Decentralized & automatic self‐healing power system
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Project Deliveries
Adaptive Frequency Thresholds Using Voltage Drop Data
(1 )v
v
Distantmore voltage drop (no overlap) Close voltage drops (some overlap)
v ijf X R2 R1
X R2 R1
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Project Deliveries (Cont’d)
Relay Comparison
ROCOF & inertia
Item UFLS AUFVLS
LS locations Predefined Event region
Relay setting Manual Adaptive
Over LS Sometimes Rarely
Dependent Independent
Voltage dynamic No Yes
Concurrent trigger Yes No
Over voltage Sometimes Rarely
Smooth frequency profile Not always Yes
Relay Advantages
Fault location oriented ↔ Adaptive to the event location
Network Topology
Communication
Plug & Play (PnP) installation ↔ Simple installation and maintenance
Detection of both Under Voltage (UV) & Under Frequency (UF) events
Robust against uncertainty in :
Network parameters→(Renewables)
Low cost ↔ Affordable hardware changes + software upgrade8
Adaptive / automatic setting Setting less ↔ No tuning and calibration
Decentralized: No communication ↔ Cyber security Hierarchical: Supervised by control center
Offline simulation
Test with distinct benchmark models
Sensitivity analysis and algorithm limitations
Reliability improvements
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Algorithm development
RMS simulation, frequency domain (Power Factory)
EMT simulation, time domain (PSCAD)
Different Simulator Softwares:
Real time simulation, time domain (RSCAD)
Real Time Digital Simulation (RTDS)
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Online test (close loop): RTDS + HIL
Field test
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Online (open loop): Real system + HIL
X
Thank you
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