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PSERC
1
T&D Technology Research
Stem
Mladen Kezunovic, Stem Leader
IAB Meeting, Atlanta
December 11-13, 2002
PSERC
2
Outline
• Introduction
• Stem membership
• Recent stem activities
• Updated Research Areas
• Recently Completed Projects
• On-going Projects
• New Projects Proposals
• Future Stem Activities
PSERC
3
Introduction
• 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
PSERC
4
Outline
• Introduction
• Stem membership
• Recent stem activities
• Updated Research Areas
• Recently Completed Projects
• On-going Projects
• New Projects Proposals
• Future Stem Activities
PSERC
5
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),
- 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
PSERC
6
Membership-Academia (11)
- 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)
PSERC
7
Outline
• Introduction
• Stem membership
• Recent stem activities
• Updated Research Areas
• Recently Completed Projects
• On-going Projects
• New Projects Proposals
• Future Stem Activities
PSERC
8
Recent Stem Activities
• Meeting #10, Aug. 17, Pserc Retreat
• Meeting #11, Sept. 27, Conf. Call
• Meeting #12, Dec 11, Pserc IAB Meeting
• Voting on New Project Proposals
PSERC
9
Outline
• Introduction
• Stem membership
• Recent stem activities
• Updated Research Areas
• Recently Completed Projects
• On-going Projects
• New Projects Proposals
• Future Stem Activities
PSERC
10
UPDATED RESEARCH
AREAS
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
PSERC
11
Outline
• Introduction
• Stem membership
• Recent stem activities
• Updated Research Areas
• Recently Completed Projects (12+1)
• On-going Projects
• New Projects Proposals
• Future Stem Activities
PSERC
12
T1: Corona Discharge
Deterioration of ADSS Cable
• 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.
• Outcome: The study resulted in an instrument and a report which describes the aging estimation technique.
PSERC
13
T-2: Differential GPS Measurement of
Overhead Conductor Sag
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
ROVER
SATELLITE
SAG
BASE
PSEUDORANDOM
CODE
PSERC
14
T3: On-Line Peak Loading of
Substation Xfmrs (Tylavsky)
• 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.
PSERC
15
T4: Electrical Transmission Line
Insulator Flashover Predictor
• 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
PSERC
16
T6: Condition monitoring
of NCI and Cables (Gorur)
• 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
PSERC
17
T-7 Redesign and New Interpretation
of Power Acceptability Curves for
Three Phase Loads
G. Heydt (Arizona State University)
The project is to design power acceptability curves for general use - for a wide range of loads
Main project findings• 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
0.0001 0.001 0.01 0.1 1 10 100 1000
-100
-50
0
50
100
150
200
250
TIME IN SECONDS
PE
RC
EN
T C
HA
NG
E I
N B
US
VO
LT
AG
E
8.3
3 m
s
OVERVOLTAGE CONDITIONS
UNDERVOLTAGE CONDITIONS
0.5
CY
CLE
RATED
VOLTAGEACCEPTABLE
POWER
PSERC
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T8: Investigation of Fuel Cell
Operation and Interaction within
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.
PSERC
19
T-9: Enhanced State Estimation by
Advanced Substation Monitoring
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
PSERC
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T10: Accurate fault location
in transmission network
• 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 implemented
Fitness surface
• 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.
PSERC
21
T-11: Part I-Wireless
Communications in Substations
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
PSERC
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T-11: Part II-Mobile Agent
Software Applications
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
PSERC
23
T 13. Personnel Grounding and Safety Issues/Solutions Related to Servicing Optical
Fiber Telecommunication Circuits in Optical
Ground Wire (OPGW)
R. Olsen, Wash. State U. S. R. Olsen, Wash. State U. S. MeliopoulosMeliopoulos, Ga. Tech G. , Ga. Tech G.
Karady Ariz. State U.Karady Ariz. State U.
•• Simulation of voltages Simulation of voltages and currents to which and currents to which OPGW maintenance OPGW maintenance workers are exposed. workers are exposed.
•• Identification of Identification of measures that can be measures that can be taken to insure the taken to insure the safety of personnel who safety of personnel who work on OPGW cables work on OPGW cables during faults during faults
PSERC
24
T-15 GPS Measurement of
Overhead Conductor Sag
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
PSERC
25
S-10: Power System State Estimation
and Optimal Measurement Placement
for Distributed Multi-Utility Operation
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
PSERC
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Outline
• Introduction
• Stem membership
• Recent stem activities
• Updated Research Areas
• Recently Completed Projects
• On-going Projects (8+1)
• New Projects Proposals
• Future Stem Activities
PSERC
27
On-going Projects
• 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)
PSERC
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Outline
• 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
PSERC
29
New Proposals
• 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)
PSERC
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Outline
• Introduction
• Stem membership
• Recent stem activities
• Updated Research Areas
• Recently Completed Projects
• On-going Projects
• New Projects Proposals
• Future Stem Activities
PSERC
31
Highest priority
• 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)
PSERC
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Vision for the Future
• 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