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8/4/2019 Kezunovic PSERC Public Webinar Slides Feb2011
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The Twenty-First Century
Substation Design
Mladen KezunovicTexas A&M University
PSERC WebinarFebruary 15, 2010
© M. Kezunovic, 2011. All rights reserved.
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Outline
• Background
• Introduction
• Sub. design options
• Retrofit solutions
• Standardization
• Conclusion
• Publications
© M. Kezunovic, 2011. All rights reserved.
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Background
• This presentation is a summary of a Pserc report10-15, September 2010
• The report talks about primary (ASU) andsecondary equipment (A&M)
• The report may be downloaded from:http://www.pserc.wisc.edu/research/public_reports/td.aspx
• Several papers where details are available:http://epipc01.tamu.edu/resume/kezresume.htm#Publications
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Substation design criteria
Source: D. Atanackovic, D.T. McGillis, F.D. Galiana, “The application of multi-criteria analysis to substation design”, IEEE Trans.Power Systems , vol. 13, issue 3, pp: 1172-1178, 1998
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Design Optimization
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Outline
• Background
• Introduction
• Sub. design options
• Retrofit solutions
• Standardization
• Conclusion
• Publications
© M. Kezunovic, 2011. All rights reserved.
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Introduction
• Sensors
• Communication technology
• Intelligent Electronic Devices (IEDs)
• Data Processing technologies
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Current technology
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Sensors Wiring
Multifunction IEDsCommunication media, network
device
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Future technology
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Multiplexing: Fiber Fabry-Perot Interferometers (FFPIs) sensors
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Linking data and technology
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Outline
• Background
• Introduction
• Sub. design options
• Retrofit solutions
• Standardization
• Conclusion
• Publications
© M. Kezunovic, 2011. All rights reserved.
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Substation Design Options
With some
limitations
Green Field Design
New Design
Retrofit Design
Current Substations
Primary Side
Secondary Side
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Existing substationsReplacing the existing
equipment by new
technologies due to:
- Design criteria
- Replacement schedule
(maintenance strategy)
- Asset management
- Maintenance cost
Expanding the existing
substation due to operating
conditions and using newtechnologies
Control House
Added Transformer
Added Circuit Breaker
Control House
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Retrofit: fiber optic cables
Advantages:
Greater resistance to electromagnetic
Lower cost (due to Multiplexing)
High reliability
Higher performance
Lower weight
Higher speed
Longer distance of transmittinginformation
Disadvantages:
Difficult installation, expert human
resource is required
Sensitive to twists
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Retrofit: Data uses
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Retrofit: Data Uses
SummaryReport
ComprehensiveReport
Brief Report
Engineer DispatcherTechnician
Electronic and paper reports can be customized according to the need of a
particular category of users and disseminated via fax, e-mail, website, pager, etc.
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New design
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Design Approach
Synchronized sampling
technology and multifunctionIEDs represent major elements of
the new design;
The proposed design useadvanced concept for data and
information processing;
Benefits
New design merges the new
technology and design criteria; Automated integration of IED
data allows more comprehensive
view of the fault events and
related consequences;
The new design will benefits
multiple utility groups: protection,
maintenance , asset management
and operations;
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Hardware implementation
Legacy substation diagram Proposed substation diagram
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Software Implementation
FAFL: Fault Analysis including Fault Location;
ISDB: Identification in Substation Data Base;
VSDB: Verification in Substation Data Base;
TSSE: Two-Stage State Estimation;
SSSV: Substation Switching Sequences Verification.
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Green field design
More compact and integrated functions
High-speed communication and reliablefault analysis and automation control
Link the electricity market operation with
real-time monitoring of the physical grid
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Features Benefits
Ideally, the new design will provide the
following information:
• Cause-effect relationship of the fault• Anomalous changes in the LMPs;• Trigger alarms based on volumes;
• Identification of predicated limitations of
available transmission capability (ATC) thatis problematic;• Identification of energy needs as a
consequence of planned events;• Predicated high reactive power demands.
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Intelligent Economic Alarm
Processor
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Type Configuration Market
Parameters
Normal All MPs Complete Within limits
Emergency All MPs Complete Parameters violate
the limitsRestorative Structure
incomplete
Within limits
*MPs (Market Participants) include generator companies,
transmission owners, load serving entities and other nonasset
owners such as energy traders.
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Outline
• Background
• Introduction
• Sub. design options
• Retrofit solutions
• Standardization• Conclusion
• Publications
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Multiple IED Records/Single
Fault
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Retrofit: Time Synchronization
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Ret rof i t : Syst em
Solut ion
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Substation Assistant™
Data Integration:
DFR, DPR, CBRAutomated Fault
Analysis
Data Warehouse
Viewing Data and
Reports
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Web Interface (DFR, DPR, CBR)
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Report Viewer (via Web Start)
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View Report (DPR example)
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View Phasors
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Troubleshooting (DFR Wiring)
Outcome: Maintenance Order (Fix DFR Wiring)
Phase B inverted
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Outline
• Background
• Introduction
• Sub. design options
• Retrofit solutions
• Standardization• Conclusion
• Publications
© M. Kezunovic, 2011. All rights reserved.
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NIST SGIP
Courtesy of EnerNex 34
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Interoperability
Courtesy of Grid wise Architecture Council 35
reprocess ng an a a ase
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reprocess ng an a a aseinterfacing to the Control Center
36 © M. Kezunovic, 2011. All rights reserved.
IEC61970 (CIM)/IEC 61850 data
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IEC61970 (CIM)/IEC 61850 data
model extensions
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Conclusion
38
Substation retrofit may benefit from hardware,
software and middleware;
New substation design should offer flexible
layout and functional capability to serve many
new applications;
New substation designs should offer monitoring,
control and protection features that will
significantly enhance system resilience and
market support
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Publications• Mladen Kezunovic, “Translational Knowledge: From Collecting Data to
making Decisions in a Smart gird,”, IEEE Proceedings (In print)
• Mladen Kezunovic, “Smart Fault location for Smart Grids,” IEEETransactions on Smart Grids (In print)
• Yufan Guan, Mladen Kezunovic, “System Monitoring and Market Risk Management using Intelligent Economic Alarm Processor ,” IEEE
Intelligent Systems Magazine, (in print)
• Mladen Kezunovic, Vijay Vittal, Sakis Meliopoulos, Tim Mount, SmartResearch for Large-scale Integrated Smart Grid Solutions,” IEEE Power
and Energy Magazine (In print)
• Mladen Kezunovic, “Intelligent Design: Substation Data Integration forEnhanced Asset Management Opportunities,” IEEE Power and Energy
Magazine, Vol. 8, No 6, November/December, 2010
• Mladen Kezunovic, Yufan Guan, Chenyan Guo, Mohsen Ghavami,“The 21st Century Substation Design: Vision of the Future”, IREP
2010, the Bulk Power System Dynamics and Control – VIII, August 1-
6, 2010, Buzios, Rio de Janeiro, Brazil. © M. Kezunovic, 2011. All rights reserved.