T&D Technology Research
Stem
PSERC
Mladen Kezunovic, Stem Leader
IAB Meeting, Atlanta
December 11-13, 2002
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Outline
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PSERC
Introduction
Stem membership
Recent stem activities
Updated Research Areas
Recently Completed Projects
On-going Projects
New Projects Proposals
Future Stem Activities
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Introduction
PSERC
• Research Stems:
- Markets
- T&D Technology
- Systems
• The Role:
- Coordinating research efforts
- Producing a list of research focus areas
- Facilitating discussion between industry
and Academia
- Advising Director, IAB and EC on
technical issues
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Outline
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PSERC
Introduction
Stem membership
Recent stem activities
Updated Research Areas
Recently Completed Projects
On-going Projects
New Projects Proposals
Future Stem Activities
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Membership-Industry (20)
- Mike Agee (Duke Energy)
- Baj Agrawal (APS)
- Luc Audette (IREQ)
- Jim Bell (Oncor)
- Jim Blake (NxtPhase)
- James Crane (Exelon)
- Bruce Dietzman (Oncor),
observer
- Craig Herdman (NxtPhase),
observer
- Mike Ingram (TVA)
- Paulette Kaptain (WAPA)
- Dale Krummen (AEP),
PSERC
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Art Mander (Tri State G&T)
Ali Nourai (AEP), observer
Mahendra Patel (PJM)
Don S. Pelley (Salt River
Project)
- Don Sevcik (Center Point
Energy)
- Mani Subramanian (ABB)
- Jerry Thompson (Duke
Energy), observer
- Devin Van Zandt (GE)
- Wendei Wang (GE), observer
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Membership-Academia (11)
-
PSERC
Ali Abur (Texas A&M), observer
Gerald (Jerry) Heydt (Arizona State)
Ward Jewell (Wichita State), observer
George Karady (Arizona State), observer
Mladen Kezunovic (Texas A&M)
Bob Lasseter (Wisconsin)
James Momoh (Howard), observer
Bob Olsen (Washington State), observer
Rahmat Shoureshi (Collorado School of Mines)
Kevin Tomsovic (Washington State)
Mani Venkata (Iowa State)
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Outline
•
•
•
•
•
•
•
•
PSERC
Introduction
Stem membership
Recent stem activities
Updated Research Areas
Recently Completed Projects
On-going Projects
New Projects Proposals
Future Stem Activities
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Recent Stem Activities
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PSERC
Meeting #10, Aug. 17, Pserc Retreat
Meeting #11, Sept. 27, Conf. Call
Meeting #12, Dec 11, Pserc IAB Meeting
Voting on New Project Proposals
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Outline
•
•
•
•
•
•
•
•
PSERC
Introduction
Stem membership
Recent stem activities
Updated Research Areas
Recently Completed Projects
On-going Projects
New Projects Proposals
Future Stem Activities
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UPDATED RESEARCH
AREAS
PSERC
I. Substation Data Integration and
Enhanced Functions
II. Managing an Aging Infrastructure
III. Distribution and Transmission
Automation
IV. New Devices and Related Control
Concepts
V. New Monitoring, Control and Protection
Paradigms
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Outline
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PSERC
Introduction
Stem membership
Recent stem activities
Updated Research Areas
Recently Completed Projects (12+1)
On-going Projects
New Projects Proposals
Future Stem Activities
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T1: Corona Discharge
Deterioration of ADSS Cable
PSERC
• Team: George G Karady ASU
• Industrial team:
BPA
• Results:
• This project developed a
monitoring system for the
determination of the intensity and
duration of dry band arcing.
• The instrument shown in the
picture measures the leakage
current.
• The statistical analysis of the
obtain data permits the estimation
of ADSS cable aging.
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Outcome: The study resulted in an
instrument and a report which
describes the aging estimation
technique.
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T-2: Differential GPS Measurement of
Overhead Conductor Sag
PSERC
G. Heydt (Arizona State
University)
The objective of this
project is to develop a
Global Positioning Satellite
based method for the
measurement of overhead
conductor sag and to use
this device in an on-line
EMS aid to operators.
Project status: Complete,
report available, PhD
thesis available, two IEEE
transactions papers
available
Research team: B.
Agrawal, R. Olsen, J.
Schilleci, G. Heydt
SATELLITE
PSEUDORANDOM
CODE
BASE
SAG
ROVER
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T3: On-Line Peak Loading of
Substation Xfmrs (Tylavsky)
PSERC
• Developed a linear model which can accurately
extrapolate transformer top-oil temperature
performance.
• Developed a model identification procedure
which uses data mining to reliably identify
transformer model parameters.
• Demonstrated that the model is superior to the
ANSI/IEEE Standard C57.91 model
• Currently developing a software tool that will
use real-time data for on-line transfomer
modeling, and peak loading prediction.
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T4: Electrical Transmission Line
Insulator Flashover Predictor PSERC
• Team:
George G Karady ASU
• Industrial team: Salt River Project. (Dan Pelley), Arizona
Public Service Co. (Baj Agrawal)
• Results:
• The leakage current of insulator chains were measured in
different pollution conditions in ASU’s HV laboratory.
• The measured data were analyzed and an algorithm was
developed to predict upcoming flashover
• The results were validated by laboratory testing
• Outcome: The study resulted in a comprehensive report, a
transaction paper as well as the graduation of a PHD
student
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T6: Condition monitoring
of NCI and Cables (Gorur)
PSERC
• Established relationship between corona light
output with partial discharge magnitude for NCI
• Demonstrated linearity of relationship for corona
on NCI hardware
• Developed a rapid laboratory test for evaluating
underground cables for condition assessment
• Correlated FTIR spectroscopy measurement of
XLPE cable insulation with electrical breakdown
voltage
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T-7 Redesign and New Interpretation
of Power Acceptability Curves for
Three Phase Loads
PSERC
250
200
0.5 CYCLE
150
100
50
0
RA T E D
ACCEPTABLE
POWER
V OLT A GE
8.33 ms
Main project findings
O VERVO LT AG E CO NDIT IO NS
PERCENT CHANGE IN BUS VOLTAGE
G. Heydt (Arizona State University)
The project is to design power
acceptability curves for general
use - for a wide range of loads
-50
UNDERVO LT AG E CO NDIT IO NS
-100
0.0001
0.001
0.01
0.1
1
10
100
1000
T IME IN S E CONDS
• Power acceptability curves for industrial loads can be constructed based on
‘power quality standard’
• It is shown that CBEMA is based on the single phase rectifier load with DC
threshold voltage of 0.87 p.u in the undervoltage region
• The ‘formula’ for the CBEMA curve is developed
• CBEMA-like curves for rotating and electromechanical relay loads developed
• After suitable period of evaluation of the proposed method of constructing
power acceptability curves, it may be possible to use the technique as a
recommended practice in industry
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T8: Investigation of Fuel Cell
Operation and Interaction within
PSERC
the Surrounding Network
• Team:
George G Karady ASU
• Industrial team: Salt River Project. (Dan Pelley), Arizona Public
Service Co. (Baj Agrawal
• Results:
• The operation of a 200kW fuel cell installed in Mesa (AZ) has been
remotely monitored for two years and the obtained data has been
statistically analyzed.
• The efficiency of the operation has been evaluated and operating
problems has been identified.
• A computer program has been developed to evaluate the economics of
fuel-cell operation.
• Outcome: The study resulted in a comprehensive report and a
user-friendly computer program to evaluate fuel cell operation, as
well as, the graduation of a MS student.
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T-9: Enhanced State Estimation by
Advanced Substation Monitoring
PSERC
A. Abur, M. Kezunovic (TAMU) A.S. Meliopoulos (Georgia Tech)
Industry partners :Oncor, Center Point Energy, Entergy, Mitsubishi
and ABB
• A substation processor and simulator is developed
• A two-stage state estimator capable of identifying
topology errors is developed
• Use of substation processor to enhance state estimator
performance is demonstrated via simulations
• Effects of three phase unbalance on estimated state are
analyzed
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T10: Accurate fault location
in transmission network
PSERC
• Team: Mladen Kezunovic, S. Luo,
Z. Galijasevic, D.Ristanovic
• Industry team: Center Point
Energy, TVA
• Results:
• The fault location software was
tested using fault cases provided
by Center Point Energy and using
different version of system models
• Performance of the fault location
software was analyzed and
potential improvement were
Fitness surface
implemented
• The final result, validated using the tuned model, shows that
the scheme of waveform matching is feasible
• Outcome: The study results in a form of a comprehensive report,
user’s manual and a ready-to-use software with friendly user
interface.
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T-11: Part I-Wireless
Communications in Substations
PSERC
Team: M. Kezunovic, C. Georghiades, A.
Shapoury (TAMU)
Industry Team:Center Point Energy
• The potential impacts of substation
slow/fast varying electrical and
environmental processes on wireless link
quality are investigated
• Several test setups are implemented to
probe these processes and their probable
impacts on the link
• The processed results yield time series
models for the wireless channel
• A methodology for wireless site survey in
substation is presented
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T-11: Part II-Mobile Agent
Software Applications
PSERC
Team members: M. Kezunovic, C.
Georghiades, X. Xu (TAMU)
Industry members: Mitsubishi ITA
• Applied mobile agent software for
generating unit maintenance scheduling
under deregulated environment
• Developed a prototype system for data
interfacing for circuit breaker
monitoring and maintenance
• Explored the agent-oriented approach
to the management of the work order
workflow in maintenance jobs
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T 13. Personnel Grounding and Safety
Issues/Solutions Related to Servicing Optical
Fiber Telecommunication Circuits in Optical
Ground Wire (OPGW)
PSERC
R. Olsen, Wash. State U. S. Meliopoulos, Ga. Tech G.
Karady Ariz. State U.
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Simulation of voltages
and currents to which
OPGW maintenance
workers are exposed.
• Identification of
measures that can be
taken to insure the
safety of personnel who
work on OPGW cables
during faults
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T-15
GPS Measurement of
Overhead Conductor Sag
PSERC
G. Heydt (Arizona State
University)
The objective of this
project is to develop
a graphic user
interface for the GPS
based sag instrument
Project status:
Complete (report
available)
Research team: B.
Agrawal, R. Olsen, J.
Schilleci
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S-10: Power System State Estimation
and Optimal Measurement Placement
for Distributed Multi-Utility Operation
PSERC
G. Huang, A. Abur (TAMU)
Industry partners :Oncor, Center Point Energy, Entergy, Mitsubishi
and ABB
• An asynchronous distributed textured state estimator with bad
data detection capability is developed
• A meter placement program that minimizes installation cost is
developed.
• Some knowledge rules are discovered to form an efficient textured
system.
• A rule based program to identify beneficial data exchanges to form
a textured system is developed.
• Benefits of the distributed state estimator are analyzed
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Outline
•
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•
•
•
•
•
•
PSERC
Introduction
Stem membership
Recent stem activities
Updated Research Areas
Recently Completed Projects
On-going Projects (8+1)
New Projects Proposals
Future Stem Activities
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On-going Projects
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PSERC
T5, Intelligent Substation (CSM)
T-12, Distribution System EM Modeling (GaTech)
T-14, NCI Evaluation: Seals and Intrf. (ASU)
T-16, Voltage Dip Effectes (ASU)
T-17, IEDs for Subst. Autom. (TAMU)
T-18, MicroGrid Protection (Wisconsin)
T-19, Optimized Maintenance (ISU)
T-20, Smart Sensors (CSM)
S-19, Cascading Events, (ISU)
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Outline
PSERC
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Introduction
Stem membership
Recent stem activities
Updated Research Areas
Recently Completed Projects
On-going Projects
New Projects Proposals (3 proposed, 1
recommended)
• Future Stem Activities
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New Proposals
PSERC
• Performance Assessment of Advanced Digital
Measurement and Protection System (ASU)
• Dynamic Loading and Uprating of Substation
Distribution transformers (ASU)
• Flashover Prediction of Insulators as a Means of
Enhancing Reliability in an Aging Infrastructure
(ASU)
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Outline
•
•
•
•
•
•
•
•
PSERC
Introduction
Stem membership
Recent stem activities
Updated Research Areas
Recently Completed Projects
On-going Projects
New Projects Proposals
Future Stem Activities
30
Highest priority
PSERC
• Reviewing project progress in separate meetings (using
distance conferencing or net facilities/services) that will
take place in-between the IAB meetings (42)
• Initiating review of the Statement of Work (SOW)
documents for the projects in similar research areas
making sure the coordination of the research activities is
optimized (18)
• Making sure the final reports for completed PSerc
projects are properly reviewed and advertised (37)
• Producing a list of research areas of interest for the
solicitation of new proposals (37)
• Conducting the review process and ranking of the
proposals (32)
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Vision for the Future
PSERC
• Facilitating formulation of targeted projects with
supplemental funding
• Expanding participation of industry experts
typically not involved with IAB
• Enhancing the means of performing an advisory
role for IAB, EC and Director
• Formulating a balanced management strategy
for project monitoring and planning
• Inventing additional means for technical
exchange within PSerc
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