Dynamic Security of a Synchronous Power System with ... Voltage Insecurity Warning 36 WSAT reported...
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Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration” Dynamic Security of a Synchronous Power System with High Wind Penetration Dr Ivan Dudurych EirGrid, Ireland
Transcript of Dynamic Security of a Synchronous Power System with ... Voltage Insecurity Warning 36 WSAT reported...
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Dynamic Security of a Synchronous Power System with High Wind
Penetration
Dr Ivan Dudurych EirGrid, Ireland
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
European Targets
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
* Based on analysis of National Renewable Action Plans (NREAPs) as submitted by Member States
European Targets
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Topics
• Operational Security Standards
• How Operational Security is Affected by a Significant Penetration of Wind Generation?
• Secure Wind Generation Level (SWL) and system non-synchronous penetration (SNSP) Concepts
• Experience with on-line Tool for Monitoring Dynamic Security of the Power Transmission System with high wind penetration (WSAT) and other EMS Tools
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
How Operational Security is Affected by a Significant Penetration of Wind (Non-synchronous) Generation and
what Mitigation Measures are?
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Ireland: Storm “Darwin” 12 February 2014 EMS
Storm Darwin brought 160kph hurricane winds heavy
rain and snow. 200,000 homes affected
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Ireland: Storm “Darwin” 12 February 2014 EMS
Storm Darwin brought 160kph hurricane
winds heavy rain and snow. 200,000
homes affected
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Ireland: Storm “Darwin” 12 February 2014 EMS
Screenshot – 13:20 16 February
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Wind – 12 February
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Wind variability
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Stability limits Static limits
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Transient Stability
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Stability limits Static limits
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Fault ride through capability (New Grid Code)
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Fault ride through capability: 55% voltage dip - slow active power recovery
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Stability limits Static limits
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Wind Generation Effects on the Power System Operation
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pu
/eirgrid230 Wed 08 JUN 2011 14:33 EOC [EGODEN1]
Merit ScaleUp
Bus Voltage (pu) Contingency: GEN 10475 05
BUS SLIGO 10 49810 110.00
BUS POOLBE20 44620 220.00
VSAT 10.3 13-OCT-11 15:41
East
West
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Wind Increases a Probability of Wind Power Trips on Transmission Faults
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
16 Wind farms!
V
Wind Power Stations tripped following transmission fault
VRN VSN VTN OPEN DELTA
t/s0.00 0.10 0.20 0.30 0.40 0.50 0.60
U/kV
-100
0
100
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Stability
limits
Static limits
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
60 MW wind
1000 MW wind
Wind Increases Frequency Deviations
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
System Inertia and RoCoF Monitor
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Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Stability
limits
Static limits
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Stability
limits
Static limits
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Making it happen: EirGrid’s DS3 Programme
System Services
Performance Monitoring
Grid Code
Demand Side Management
Frequency Control
Voltage Control
Renewable data
System inertia
Models Development
Control Centre Tools
AI Wind Secure Level Assessment Tool (WSAT)
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Secure Wind Generation Level (SWL) and System Non-synchronous Penetration (SNSP) Concepts
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Secure Wind Generation Level (SWL)
Reduce wind
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
SWL and Secure SNSP
SNSP = Wind + Imports Load + Exports
Load + Exports = Generation + Imports
SWL = Secure Wind
Generation + Imports
SNSP = Wind + Imports
Generation + Imports
SSNSP = Secure Wind + Imports Generation + Imports
SWL is equivalent to Secure SNSP
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Operational Limits and Impact on RES-E
50% 75%
Wind Curtailment Levels Maximum Allowable Real Time Wind Level
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Analysis of SNSP % on System During Daylight Hours (8am to 10pm)
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Experience with on-line Tool for Monitoring Dynamic Security of the
Power Transmission System with high wind penetration(WSAT)
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
WSAT – Software Structure
Near real-time Wind limits
Security violation details
Results Display
WSAT Manager
On-line VSAT
On-line TSAT
Study WSAT
Real-time system
snapshot
Wind ForecastP
yth
on
Inte
rfa
ce
Other information
Input data
Security AssessmentReal-time
Contingencies
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Example: Transient Insecurity Warning
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WSAT reported a v transient stability problem. The loss of Kilbarry Marina 2 110kV line resulted in AD2 and WG1 going unstable. Factors which influenced NCC response included high output of AD2 and WG1 at the time The following action was taken reduced both AD2 and WG1 to 410MW exported.
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Example: Voltage Insecurity Warning
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WSAT reported a voltage stability problem.
The loss of the Castlebar SVC resulted in voltage issues in
Moy, Tawnaghmore and Glenree (currently on a tail)...
Decision taken to switch in Moy 110 kV Cap 1 as soft closing is
available on this cap.
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Further work with WSAT: Including the Frequency stability analysis
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Further work with WSAT: Reversed Transfers
SecureThermal/Voltage Violations Collapse
Wind MW
Initial
Value
WSAT
Limit
Secure Thermal/voltage violations
Wind MW
Initial
Value
WSAT
Limit
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Wind Dispatch Tool
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
WSAT: Near real time calculations
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Further work with WSAT: Forecast calculations
Up to 6 hr ahead
Up to 24 hr ahead
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
Final Remarks • Transmission System Operational Security will be affected by a
significant penetration of wind Generation
• In order to maintain Operational Security standards, even better balancing of active and reactive power across the power transmission system is needed
• Secure Wind Generation Level (SWL) and Secure SNSP Concepts denote how much wind power can be kept instantaneously on the system without compromising Operational Security standards.
• On-line Tool for Monitoring Dynamic Security of the Power Transmission System WSAT in combinations with other EMS tools gives opportunity to operate system securely while maximizing renewable penetration
Dr Ivan Dudurych “Dynamic Security of a Synchronous System with High Wind Penetration”
* Based on analysis of National Renewable Action Plans (NREAPs) as submitted by Member States
European Targets
