IEEE Voltage Flicker TF Meeting

2002 PES Winter Power Meeting

New York, NY

January 29, 2002

The meeting was called to order by Reuben Burch, secretary acting on behalf of Larry Conrad. Introductions were made. There were 21 in attendance. The minutes of the 2001 PES Summer Power meeting were reviewed and approved with changes.

Coordination reports:

IEC:

All voting countries have unanimously approved the proposed revisions to 61000-4-15 in 77A/341/CDV and the Final Draft Industry Standard (FDIS) is ready to be submitted. The FDIS contains work done by those in this TF to develop the 60Hz 120V flicker curve. The changes to this document were reviewed by those in attendance and a show of hands was unanimous in favor of the document.

1547:

There is some cause of concern among the distributed generation group due to limiting the Pst to 1.0 and due to the flicker curves still shown in the Red Book (IEEE 141) and in IEEE 519. Both of these are the old GE flicker curve and, in both cases, they will be removed from these sources as revisions are made. Mark Halpin suggested that Pst = 0.35 be allocated to all users as a remedy to the question at hand. It was suggested that Tom Key address the IEC flickermeter issues with the 1547TF.

CIGRE/CERED/UIE:

Eric reported that all PQ committees are now united within one group. There is now an effort to develop a test protocol for the IEC flickermeter. A meeting will be scheduled in a few months to resume this effort. Eric agreed to present a draft of this document at the next TF meeting. They also propose to develop a flickermeter simulator. The test protocol will eliminate the discrepancies in the wide variations in reading that currently exist.

Interharmonic TF:

Eric reported that some of the limits that will be suggested by this TF for interharmonic limits would be based on the IEC flickermeter.

Old Business

IEC/IEEE Wrapper:

Some questions were asked about the process of creating the IEEE wrapper for the IEC document. As has been previously discussed in this TF, there are one or two other examples where the IEEE has worked through this process. Our TF will provide the front and back documentation to the existing IEC document. At present, the planned additions by this TF include an introduction, a discussion on measurements, recommended limits, and an informative annex containing a historical perspective of voltage flicker limits to present. The current TF draft will be sent to TF members who are asked to provide their comments and, more importantly, to assist in filling in missing sections. A consolidation of the draft will be reviewed at the next meeting.

Balloting Committee:

In preparation for balloting, a ballot committee will be formed. This committee will consist of all members of the TF at the time the ballot is sent out for vote. The TF members were reminded of their need to be IEEE SA members in order to participate in the balloting process. IEEE will verify SA membership once the balloting list is sent to them prior to the ballots being sent out. A list of those present wishing to serve on a ballot committee was obtained.

TF Tutorial:

James Wikston informed the TF that Tera Gallis of the IEEE asked that copies of presentations in Power Point format be made available on the IEEE web-site. This request came from tutorial attendees. The attendees will then be notified when all the presentations are available so they can obtain them.

There being no new business, the meeting adjourned. The next meeting will be at the IEEE PES Summer Power meeting in Chicago.