Uses of Operational and Non-Operational Data · Uses of Operational and Non-Operational Data ......
Transcript of Uses of Operational and Non-Operational Data · Uses of Operational and Non-Operational Data ......
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Uses of Operational and Non-Operational Data
Mladen Kezunovic Texas A&M Universityhttp://www.ee.tamu.edu/~pscp/index.html
Research SeminarAbu Dhabi, UAE, March 8, 2007
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Outline
● Introduction● Background: Operational VS Non-
operational Data● New Concept: Transparent Data● New Solutions: Different utility groups● Examples: Demonstration Project● Conclusions
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Introduction
● Basic problem: how to utilize data “explosion” in power systems
● Data “explosion” is associated with introduction of substation IEDs
● Current status: “pipeline” of R&D, demonstration, deployment
● Funding parties: State of Texas (ETF), NSF (Pserc), DOE (CERTS, CTC), EPRI, utilities, ERCOT, vendors
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Outline
● Introduction● Background: Operational VS Non-
operational Data● New Concept: Transparent Data● New Solutions: Different utility groups● Examples: Demonstration Project● Conclusions
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Background
● Traditional data separation: operational and non-operational
● New concept: make data transparent to the user
● Properties of new data: redundancy, robustness, more information
● Problems to be solved: data acquisition, data integration and information extraction, information presentation
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USA Interconnections
Fig. 2 North America 3 Interconnections / 10 Regions
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Power System Layout
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118-bus system
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Substation Layout
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IT layout
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Integration of operational and non-operational data
CFL MS PE EMS
LMS
FL
IS SC
RC
DFR CBM DPR RTU SOE
A S A S A AS AS AS
LEVEL ICENTRALIZED
LOCATION
LEVEL IISUBSTATION
LEVEL IIISWITCHYARD
INTERFACE
20
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Benefits
Transmission LineCurrent
Transformer
Bus
Contact “A”
Contact“B” Capacitive
VoltageTransformer
)
CurrentVoltage
((
CBM
DPR
DFR
CB
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Outline
● Introduction● Background: Operational VS Non-
operational Data● New Concept: Transparent Data● New Solutions: Different utility groups● Examples: Demonstration Project● Conclusions
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Email, Fax, Hosting, WWW, Pager Notification
Intranet Internet
Wide-area networks (hubs, routers, gateways)
System wide analysis
Mobile Agent Server
System wide control
COMTRADE IEC 61850
Substation Data Analysis
RTUDPR
SERCBM
PMUDFR
GPS
Substation Data Analysis
DFR
RTU
SER
PMU
DPR
CBM
GPS
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IED connections
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Synchronized Sampling
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Data Integration
DPRs CBMs RTUsDFRs SERs PLCs
Data Integration
Information Exchange
PQ Meters
Database:Raw and pre-processed measurements
System configuration data
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Outline
● Introduction● Background: Operational VS Non-
operational Data● New Concept: Transparent Data● New Solutions: Different utility groups● Examples: Demonstration Project● Conclusions
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Multiple uses of data
SummaryReport
ComprehensiveReport
Brief Report
Protection GroupOperator
Maintenance
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Outline
● Introduction● Background: Operational VS Non-
operational Data● New Concept: Transparent Data● New Solutions: Different utility groups● Examples: Demonstration Project● Conclusions
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Demonstration Projects● Data Acquisition and processing - All-digital protection system - Automated topology processing - Transient testing of substation systems● Data Integration and Information
Extraction - Automated substation processing - Enterprise-wide applications● Information Presentation - Models - Physical images
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Existing solutions
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New Versus Existing solutionProcess
Current and/or Voltage Sensor
Sensor Module
Interface Module
Function Module
Status Sensor
Input Module
Protection IED
ProcessProcess
Interface Module
LAN Switch
Process Control
Interface Module
Outputs Module
Merging Unit
Input/Output Unit
Event Start Event EndtSM tIM1 tLAN tIM2 tFM tOM tPC
tEVT
Process
AnalogSensor
SensorModule
FunctionModule
OutputsModule
StatusSensor
InputModule
ProcessControl
Multifunctional IED
Process
Process
Event Start Event EndtSM tFM tOM tPC
tEVT
New solution: digital current and voltage samples are supplied to IED via the substation LAN. It requires Interface Modules in MU and IED
Field signals are brought in to control house via process bus
Existing Solution: analog current and voltage signals are supplied to IED
Field signals are brought into control house via standard copper wires
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All-digital system
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Modeling, simulation and lab tests
Lab Setup
Opto-Electronic
Rack with MU
Comercial Currentand VoltageAmplifiers
Optical Currentand VoltageTransducers
ProtectiveRelay
EthernetSwitch
SimulationComputer
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Demonstration Projects● Data Acquisition and processing - All-digital protection system - Automated topology processing - Transient testing of substation systems● Data Integration and Information
Extraction - Automated substation processing - Enterprise-wide applications● Information Presentation - Models - Physical images
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Power System Layout
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Circuit Breaker
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Mechanical Structure(Closed State)
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Mechanical Structure(Open State)
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Performance Characteristics
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Time Parameters
Event #
Event Description Time
1 Trip or close operation is initiated T1
2 Coil current picks up T2
3 Coil current dips after saturation T3
4 Coil current begins to drop T4
5 B contact breaks or makes T5
6 A contact breaks or makes T6
7 Phase currents breaks or makes T7
8 X coil current picks up T8
9 X coil current drops out T9
10 Y coil current picks up T10
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Feature Extraction
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 01 . 4
1 . 4 0 5
1 . 4 1
1 . 4 1 5x 1 0
4 O r i g i n a l S i g n a l
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 01 . 4
1 . 4 0 5
1 . 4 1
1 . 4 1 5x 1 0
4
A p p r o x i m a t i o n 6
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0- 5 0
0
5 0D e t a i l 3
( m s )
( m s )
( m s )
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 00
2 0
4 0
6 0
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 00
2 0
4 0
6 0
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0-2 0
0
2 0
(m s )
(m s )
(m s )
O r ig in a l S ig n a l
6 t h le ve l A p p ro x im a t io n
4 t h le ve l d e t a i l
Splitting
Calculating Parameters
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0
0
2 0
4 0O r i g i n a l S i g n a l
0 5 0 1 0 0 1 5 0 2 0 0 2 5 0 3 0 0
0
2 0
4 0R e c o n s t r u c t e d S i g n a l
( m s )
( m s )
Denoising
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Functional Description
Signal Processing
Rochester Record
Settings Settings
Conversion
Signal Parameters
EventReport
Database
Comtrade Record
Web application
Client SolutionServer Solution
Expert System
Rules
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Topology processing
Circuit breaker 1
CBM 1
Circuit breaker 2
CBM 2
Circuit breaker 3
CBM 3
Circuit breaker N CBM N
. . .Concentrator PC
Receiver
Transmitter 1
Transmitter 2
Transmitter 3
Transmitter N
GUI
Data transfer
Data acquisition
Signalprocessing
Reporting,Archiving
Event analysis
Topology
Switchyard Control house
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Topology Monitoring
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Software – Sequence Analysis
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Demonstration Projects● Data Acquisition and processing - All-digital protection system - Automated topology processing - Transient testing of substation systems● Data Integration and Information
Extraction - Automated substation processing - Enterprise-wide applications● Information Presentation - Models - Physical images
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New methods for relay testing
Test SetsOpen-Loop
SolutionsReal-TimeSolutions
• Portable/Field• Lab
• Lab• Portable/Field• Permanent/Field
• Lab only
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Field Portable Setup
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Two Approaches: Field Recorded Transients
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Two Approaches: Simulated Transients
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Field Permanent Setup
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Demonstration Projects● Data Acquisition and processing - All-digital protection system - Automated topology processing - Transient testing of substation systems● Data Integration and Information
Extraction - Automated substation processing - Enterprise-wide applications● Information Presentation - Models - Physical images
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Use of substation data
RAW DATARAW DATA
PROCESSED DATAPROCESSED DATA
IEDsIEDs
Automated Analysis SystemAutomated Analysis System
Remote Control CenterRemote Control Center
VSDBVSDB TSSETSSE FAFLFAFL SSSVSSSV
DFRADFRA DPRADPRA CBMACBMA PQMAPQMA
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System Architecture
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Demonstration Projects● Data Acquisition and processing - All-digital protection system - Automated topology processing - Transient testing of substation systems● Data Integration and Information
Extraction - Automated substation processing - Enterprise-wide applications● Information Presentation - Models - Physical images
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TriggeringEvents
Faults, Frequency ChangesPower Swings, Overloads,
Voltage problems
Protection Relays Trip Lines, Generators,
Transformers or Loads
System switching, Generator reject., Load shed. Instability, Voltage Collapse
BlackoutState
Relay operation is a major contributing factor
Typical Cascading Process
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Overall scheme
System Monitoring and Control
Local Monitoring and Control
Power System and Distance Relay
Real-time Fault Analysis
• Neural Network Based Fault Detection and Classification (NNFDC)
• Synchronized Sampling Based Fault Location (SSFL)
Relay Operation Monitoring
Event Tree Analysis (ETA)
Security Analysis
• Routine Security
Analysis
• Event-based Security Analysis
Security Control
• Steady State Control
• Transient Stability Control
Monitoring Command
Disturbance Report
Measurement Control Measurement Control
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Graphic Demonstration
Routine-based Security Analysis
Event-based Security Analysis
Candidate control means
Selected control means
Local Monitoring Tool
Local Monitoring Tool
Local Monitoring Tool
System Level Substation Level
Substation 1
Substation 2
Substation n
Expected Unexpected
System Status& Monitoring command
Disturbance Report
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Local Monitoring Tools
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Synchronized sampling based fault location
Local End Remote End
IED
NNFDC SSFL
CT
PT
CommunicationLink
R/T: Receiver/Transmitter
IED
NNFDC SSFL
CT
PT
R/TR/T
GPS Satellite
GPS Receiver GPS Receiver
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Neural Network Based Fault Diagnosis
x1 xN x8*NVa Vb Vc IcIa Ib3V0 3I0
Input Pattern (using normalized raw samples)
Pattern Space
Training (Self-Organized Clustering Technique)Testing (Fuzzy K-nearest neighbor classifier)
(2-D demo)
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Real Time Fault Analysis Tool Based on Combination of the Two Algorithms
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Event Tree Analysis for relay operation monitoring
t
Real time Monitoring
Misoperation Alarms (Red Nodes)
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Demonstration Projects● Data Acquisition and processing - All-digital protection system - Automated topology processing - Transient testing of substation systems● Data Integration and Information
Extraction - Automated substation processing - Enterprise-wide applications● Information Presentation - Models - Physical images
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Power World softwareTopology
Fault Location
Equipment
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VisualizationThe representation, visualization, and manipulation of objects
represented as sampled data in three or more dimensions.
Courtesy of University of Mannheim, Germany
voxel
polygon3D Surface Graphics
3D Volume Graphics
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Outline
● Introduction● Background: Operational VS Non-
operational Data● New Concept: Transparent Data● New Solutions: Different utility groups● Examples: Demonstration Project● Conclusions
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CCET Partnership
EPRI: Substation Automation
DOE CTC: Visualization
Vendors: Products
PSERC: Algorithms
Utilities: Field demo
DOE CERTS: Topology
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Questions?