May 2003
C: SYSTEM PROTECTION
SUBCOMMITTEE
Chair: D. Novosel
Vice Chair: T. Seegers
The system protection Subcommittee met on May 21, 2003, with 46 people attending including 18 members.
Chair Novosel and vice-chair Seegers again praised working group chairmen on the outstanding progress made toward completing their assignments.
It was noted again that several working groups will complete their assignments by the end of this year. Proposals for new working group assignments are being solicited.
Note that two task forces met this time and two new working
groups were formed. Their reports are
given below under C3 Trends and Issues With Relay Settings and C7
Multi-Station and System Testing.
Working Group Reports:
C2: Power Quality Issues in Protective
Relaying
Chair: T.W. Cease
Vice Chair: S. Kunsman
C2 met Wednesday May 21, 2003 in Raleigh, NC with 11 members and 16 guests present. The total number of members is 26.
TW reviewed the open action items from last meeting.
Actions Complete from last meeting:
· Markus Kortesluoma provided a small write up on Section 3.4 and 3.5 (IEC and EN PQ Standards).
· John Boyle provided revisions to section 5 as a result of the group’s comments.
Eric Udren informed the group that TC 57 has a New Work Item Proposal to develop Logical Nodes (IEC 61850-7-3,4) as part of the Working 10-12 (Alex Apostolov is the lead). Eric agreed to forward the proposal.
Jim Burke informed the group that there is a new IEEE T&D WG on Power Quality. He will also forward a recent paper on PQ trends.
Tony Seegers suggested sending the paper out in ballot format to motivate people to review the paper.
Eric Udren stated that a possible extension or follow-up to the paper to provide guideline or standard for PQ settings to coordinate power system protection. Jim Burke commented that it is really difficult to coordinate between relays and fuses based on the 3-5-cycle breaker operation.
Action Items:
1. Assignments Reviews assignments due July 31, 2003
Section 6 – Roger Hedding
Section 3.4 and 3.5 – Inmaculada Zamora
All sections – all members
2. Additional writing assignments due July 31, 2003
Section 3.6.3 Application of ITIC Curve for Distribution Networks Patrick Carroll
Section 3.6.1 Writing assignment on issues of PQ monitoring and relays Steve Kunsman
Section 3.6.4 and 3.6.5 How Application on the IEC and EN standards affects the protective relaying - Inmaculada Zamora
Summary/Recommendation paragraph on next steps after the report - Eric Udren
3. Jim Burke to distribute a recently published paper on PQ in word format. Sections maybe used for inclusion in the report.
4.
Incomplete writing assignments due no later than July
31, 2003
All authors to review section and to
reduce figure size (e.g. jpg format) all
5. Update and provide comments on bibliography - Sidhu
6. TW to confirm the latest document is posted on the IEEE website.
7. TW to send out a ballot document requesting Working Group members for comments and approval.
Next meeting requires 1 session, room for 30 people, & computer projector.
C3: Trends and Issues with Relay Settings
Chair: Steve Kunsman
Vice Chair:
to be determined
CTF1 met Wednesday May 21, 2003 in Raleigh, NC with 26 participants.
Agenda
for May 21, 2003:
·
Introduction
·
Overview
of Objectives and Problem Statement
·
Configuration
Management (Software Development analogy)
·
Experience
from the utility members
·
Firmware
version control
·
Protection
Settings archives
·
Open
Discussion on the Scope and Content of this task force
·
Next
steps
Objective:
1)
To
discuss utility issues with complexity of relay settings, multiple setting
groups, documentation handling, database consistency, relay records, etc.
2)
Make a
recommendation to the sub-committee to form a working group.
Problem
Statement discussed:
The use of
modern protection devices has increased complexity and ability to maintain
system integrity due to:
·
amount
of integrated functions
·
multi
vendor installations
·
different
firmware versions
·
different
configuration tools
·
number
of different substation configurations
Upcoming
standards, like IEC 61850, are addressing the compatibility issue, however,
utility install base of different technologies protection device makes the task
of managing the system infrastructure extremely difficult.
Open
Discussion:
The issue of
Relay Settings throughout the infrastructure is the single largest issue (Frank
Plumptre).
Other
discussion points included:
·
Relay
Firmware version control
·
Relay
compatibility to settings files
·
Reference
comparison as to settings installed versus master archive (electronic
compare/difference software)
·
Documentation
of multiple settings
·
Issues
related to providing relay settings to non-relay engineers
·
Ability/difficulty
to locate bad settings in the install base when a problem is found (searchable
settings database)
·
Ability
to develop logic diagrams to better understand the device functionality
·
Relay
maintenance records including periodic calibration
·
Commissioning
records (original baseline of settings)
·
Firmware
quality control
·
Settings
archiving/retrieving (how do you know what the latest settings should be?)
·
Setting
file format differences (different vendor formats and tools, like Aspen,
formats)
It was also
noted that coordination will be required with other working groups (I3 Relay
Firmware Quality Assurance and H3 Common Format for IED Configuration Data)
Recommendation:
This
discussion topic was highly supported with a unanimous decision to recommend
formation of a C-working group to the subcommittee. Fourteen (14) of the participants have indicated interest in
becoming WG members.
Proposed
Assignment:
This proposed working group will prepare a report on “Processes, Issues, Trends and Quality Control of Relay Settings.”
The working group will include:
·
Relay Settings and Multiple Settings Groups
·
Installation and Commissioning Records
·
Maintenance Records including periodic review
·
Control Logic Documentation
·
Device Documentation including Test and Calibration
Records
·
Documentation of the Relay Setting Process
Both Utility and
Manufacturer will benefits from this proposed WG. Utilities will gain practical knowledge of peer utility
experiences and will improve quality control and system reliability. Manufacturers will gain knowledge of
operational issues and can improve future product developments.
Next meeting requires 1 session, room for 30 people, & computer projector.
C4: Wide Area Protection and Emergency
Control
Chair: M. Begovic
Vice Chair: D. Novosel
The WG met in a single session with 12 members and 13 guests in attendance. The following account of the discussion reflects the decisions made on the assignments (partitioned among the papers previously agreed to be written):
· (Paper 1): Summary paper, an overview of the entire report (coordinator: M. Begovic, contributor: D. Novosel, S. Horowitz, D. Karlsson, M. Venkata, G. Michel, J. DeLaRee)
· The present draft is mostly a condensed compilation of the C-6 report, which needs to be further compressed: all sections will be shortened as appropriate. The following sections will be significantly reduced, and the reduced content transferred to the other papers: section on hidden failures (to be placed in paper 4); section on system protection schemes (SPS) and emergency control (to be placed in paper 4); section on technology infrastructure (PMU and communications – to be placed in paper 2). ACTION ITEMS:
· Miroslav: will do most of the editing and proofreading, will correct references and add Daniel Karlsson’s contribution on EdF installation, originally intended for paper 4, to the section on existing installations. Will also correct the list of authors.
· Damir: will do the proofreading.
· Gary Michel: will contribute a subsection on fast acting load shedding in Florida system (for the section on existing installations).
· Mani: will provide additional material on SPS.
· Jaime: will add a short account of recent results in hidden failure analysis.
· (Paper 2) On Technology Issues and Infrastructure in WAPEC, (coordinator: A. Phadke, contributors: G. Michel, C. Henville, M. Adamiak, Ken Martin, A. Apostolov, M. Begovic)
· The manuscript has been written and the contributors have done a very thorough job, covering both the C-6 report and providing interesting additional material. Charlie Henville has done one round of editing and the content is getting close to final form. ACTION ITEMS:
· Gary Michel: will provide three additional references on communication issues.
· Alex Apostolov: will provide a brief section on digital recording of wide area events.
· Ken Martin: will add a Figure illustrating transient phasor response to his part.
· Ken and Mark Adamiak: will write a brief section on latency times and issues in point-to-point communications using fiber optic links.
· Miroslav: will add material to the section on voltage stability and a few additional references.
· Charlie Henville: will provide additional text to support the Figure 4.
· Arun Phadke: will edit the entire draft and references for accuracy (possibly considering merging Figures 1 and 2 into a single Figure, among other things).
· (Paper 3) On Analytical Issues and Implementation of WAPEC, (coordinator: J. Thorp, contributors: M. Ibrahim, K. Mustaphi, Mike Agudo, Ken Martin, Jim Cai). It was decided that the work on this paper be aborted, partly due to the concerns about overlapping content with the other three papers. Jim Thorp’s contribution, originally intended for paper #2, will be relocated to paper #4.
· (Paper 4) On Future Trends and Issues in WAPEC, (coordinators: D. Karlsson, and S. Horowitz, contributors: G. Michel, K. Narendra, Jim Cai, M. Venkata, M. Begovic, J. DeLaRee)
· The work on this paper has advanced and rough draft has been favorably reviewed by the Working group. Jim Cai has done one round of editing. ACTION ITEMS:
· Miroslav, Mani and Jim Cai will add material to the section on heuristic methods to provide additional overview of analytical methods in WAPEC.
· Stan: will edit the entire manuscript, reduce the number of Figures (while keeping the important Figures contributed by Daniel Karlsson), add Jim Thorp’s contribution to the manuscript, and add a section on hidden failures.
· Jaime: will provide a section on hidden failures.
· Jim Cai: will re-draw Figure 1 and review associated formulae for accuracy.
· Review members: Dr. Chul-Hwan Kim, Bill Kennedy and Rick Cornelison will review all three manuscripts for content and grammar.
· Current draft and minutes of meeting (assignments) will be distributed by the end of May. All contributions should be done by the end of July (those due to Arun Phadke are due end of June). Final editing by the authors to be done in August, and the three final drafts should be reviewed by the entire Working group by the September meeting.
· Damir proposed, and it was agreed that the Working Group do the internal balloting on the papers at the September meeting.
· Miroslav proposed creation of a Task Force, or a Working Group to do the Overview of SPS Installations in the world. Last such effort, undertaken under the auspices of IEEE and CIGRE, was done 10 years ago, and the SPS proliferation since then would make it a worthwhile task to re-review the current situation. It was decided to discuss the proposal at the Subcommittee meeting.
Expected completion date should be September 2003.
Next meeting requires 1 session, room for 30 people, & computer projector.
C5: Deployment and Use of Disturbance
Recorders
Chair: B. Jackson
Vice Chair: W.M. Strang
Working Group C5 Met Tuesday afternoon May 20 with 12 members and 13 guests.
Cahirman reviewed the purpose of the working group and opened discussion on the outline. The group reviewed additions to the outline and comments on issues not covered including: NERC standards, data security, and data sample rates.
Assignments were made to various sections of the outline.
The group had two short presentations. The first was on relay fault events and the display of wave forms by retrieval of data for a standard DFR event and a raw unfiltered relay event. Comparison was made on the differences between the two displays.
The second presentation showed a 90 second power swing event.
Next meeting requires 1 session room for 30 people & computer projector.
C7: Multi-Station and System Testing
Chair: V. Madani
Vice Chair: to be determined
Group met as CTF7 with 16 in attendance.
Ø Value to end-users
Ø Different users have different practices and applications
Ø More system testing would help in troubleshooting
Ø Traditional testing may not prove the overall system performance
Ø Discuss Maintenance benefits
Ø Value of synchronized end-to-end tests for fine-tuning of system testing
Ø Getting the glitches out of protection and control system
Ø Sensitivity tests (More of lab and modeling tests)
Assignment:
The Working Group will develop a guideline for System Application Test Requirements, Scope and level of tests, and Benefits for Overall Protective Schemes. This assignment includes SPSs, end-to-end testing, data collection requirements as well as the test procedure definitions.
WG – will develop the methods, extent, and types of tests and types of system tests at various voltage levels or application
Next meeting requires 1 session room for 35 people & computer projector.
C8: Phasor-Based
Models for Analyzing Relay Performance
Chair:
M. Meisinger
Vice Chair: M. S. Sachdev
The Working Group met at 11:00 AM on May 20, 2003 in Salon C Room, North Raleigh Hilton Hotel, Raleigh, NC. Seven members and six guests were present.
Mohindar Sachdev reported that he had previously distributed by Email Draft 8 of the paper and had asked for comments within three weeks. At the expiry of this period, the comments received from the members will be incorporated and the paper would be balloted among the members of the WG and the SC before submitting the paper to the Officers of the PSRC for approval.
After some discussion, the meeting was adjourned.
Next meeting requires 1 session & room for 25 people.
C9: Underfrequency Load Shedding and Restoration
Chair: A. Apostolov
Vice Chair: K. Behrendt
The working group met on Tuesday, May 20th, with 12 members and 18 guests present. Draft 2 of the document was circulated for comments prior to this meeting. Any additional comments received by the end of May will be incorporated into Draft 3, which will be sent to the working group and Subcommittee by June 15th for informal survey. Draft 3 survey responses should be returned by July 15th with comments. Any negative survey responses and significant comments will be resolved and incorporated in the next draft document by August 30th.
The working group discussed comments received about Draft 2. Damir Novosel discussed the differences between two presentations in the document on frequency-rate-of-change. Al Darlington provided dialogue about load shedding and abnormal frequency operation in the state of Florida. Other reports of abnormal frequency operation were solicited to supplement the reports already included in the document. Rich Hunt, Benton Vandiver, and John Ferraro volunteered to provide an overall review of Draft 3. Alex Apostolov and Vahid Mandani volunteered to write about monitoring and recording requirements for abnormal frequency operation.
Next meeting requires 1 session room for 40 people & computer projector and outlet strip.
C10: Effects on Changing Utility Environment on Protective Relaying
Chair:
J. DeLa Re
Vice Chair: R. Hunt
The working met 9:30 AM, Wednesday, May 21, 2003 in Ballroom
5 with 7 members and 17 guests. The
chairman distributed copies of the last meeting minutes and version 1.1 of the
WG report.
Discussion centered on comments and modifications to the
existing document.
Assignments and Action Items
Ø
Chair
and Co-Chair to rewrite introduction and to compile comments and discussions
form WG members. Due date: 06/06/03
Ø
Members
and interested guest to review and comment the document. Due date: 07/06/03
Ø
Second
draft of the document to include new contributions, comments and changes to be
distributed by chair and co-chair. The
new document will include a front page in the form of a voting ballot. The purpose of this ballot is to initiate
final review of the latest draft to complete the WG task at the September
meeting. Due Date 07/30/03
Ø
After
the completion of the report, the working group will discuss the most
appropriate way to present the result, conference paper, publication, etc.
Next meeting requires 1 session, room for 25people, & computer projector.
C11: Protection Issues During System Restoration
Chair:
T. Sidhu
Vice
Chair: D. Tziouvaras
The working group met on May 20, 2003 with 6 members and 13 guests in attendance. The latest draft of the paper was discussed at the meeting. The paper is more than 90% complete. Three assignments to Simon Chano, Bill Kennedy, and Tarlochan Sidhu were made to complete the paper. The assignments are due to the chairman by June 20,2003. An editorial team consisting of Pratap Mysore, Bill Kennedy, Demetrios Tziouvaras, and Tarlochan Sidhu was established. The paper will be sent to wg members by the end of July for their comments.
Next meeting requires 1 session, room for 30 people, & computer projector.
No report
Other than the papers given and listed below, there are
no activities to report that involve protective relaying.
Question: Does our Subcommittee want to know about
papers that were given by members of this PES Committee or reviewed by the
Committee? If by happenstance you say, yes, the papers given in the last 5
months involving protection are listed below:
1. J. Jung et al including A. Phadke, "Wide Area Protection
and Control Using a Strategic Power Infrastructure Defense Systems", CIGRE
General Conference, August 2002, Paris, FR.
2. W. R. Lachs, "New Horizon for System Protection
Systems Schemes", February 2003 IEEE Transactions (Abstract on PES
website).
3. J. A. Hossack et al, "A Multi-Agent Architecture
for Protection Engineering Diagnostic Assistance" May 2003 IEEE
Transactions.
4. E. M. Davidson et al,"A Tool-Set for Applying
Model-Based Reasoning Techniques to Diagnostics for Power Systems Protection",
May 2003 IEEE Transactions.
New Business
As a result of discussions, a new task force was
formed to discuss the need for possible subcommittee involvement as follows:
CTF6 Support the Emphasis of Relay Engineering in
Power Engineering Curriculum and Promote Relaying in General
Task Force Chair:
Mani Venkata
Formed to discuss ways to support the encouragement
of new engineers to choose emphasis on relay engineering as their career
choice. This TF will also address how to better promote relaying in our
industry and beyond. Mal Swanson will coordinate his activities in this area
with Mani Venkata.
Next meeting requires 1 session, room for 30 people, & computer projector.
It
is also accepted to work on forming a new Working Group to do the Overview of
SPS Installations in the world. This activity will be done as a part of C4 WG.