T&D Technology Research Stemeppe.tamu.edu/presentations/presentation_2002_12_13_topics.pdf ·...

PSERC

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T&D Technology Research

Stem

Mladen Kezunovic, Stem Leader

IAB Meeting, Atlanta

December 11-13, 2002

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

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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

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Outline

• Introduction

• Stem membership







PSERC

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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),

- 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)

- 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

• Introduction

• Stem membership







PSERC

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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

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Outline

• Introduction

• Stem membership







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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

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Outline

• Introduction

• Stem membership



• Recently Completed Projects (12+1)




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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.

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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

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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.

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T4: Electrical Transmission Line

Insulator Flashover Predictor


• 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)

• 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


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

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T8: Investigation of Fuel Cell

Operation and Interaction within

the Surrounding Network


• 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

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

• 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.

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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

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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

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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

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T-15 GPS Measurement of

Overhead Conductor Sag


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

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

• Introduction

• Stem membership




• On-going Projects (8+1)



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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)

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Outline

• Introduction

• Stem membership





• New Projects Proposals (3 proposed, 1 recommended)


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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)

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Outline

• Introduction

• Stem membership







PSERC

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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)

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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

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