ieee scc21 p1547a working group meeting 1 meeting...

IEEE SCC21 P1547a Amendment 1 Working Group Meeting Minutes Nov. 29 - 30, 2012 Embassy Suites Hotel, Piscataway NJ

IEEE SCC21 P1547a Working Group Meeting 1 Meeting Minutes, Jan. 31 – Feb. 1, 2012

Piscataway NJ

Draft IEEE Std 1547 Standard for Interconnecting Distributed Resources with Electric Power Systems -- Amendment 1

Welcome and Agenda. Co-Chairs Tom Basso and Jim Daley welcomed the attendees (Annex A) and introduced the draft agenda that during the meeting was modified (Annex B slide 2). IEEE SCC21 Chairman Richard (Dick) DeBlasio was introduced and made preliminary remarks on SCC21 and Std. 1547 series (Annex B slides 3-5). Attendees introduced themselves including their affiliation. Tom Basso presented the P1547a title, scope and purpose, and IEEE meeting background slides including patents disclosure information (Annex B slides 6-12). Attendees had no patent concerns at this time. P1547a Background. Tom then provided some P1547a logistics including listserv subscribing and a summary timeline of upcoming IEEE SCC21 standards development meetings and planned and targeted ballot actions (Annex B slides 13 – 15). Tom then presented background on the three P1547a amendment topics (Annex B slides 16-29). Note: Annex B slide 16 was added onsite as reference to IEEE Std 1547.2 information for the P1547a three amendment topics. Jim Daley presented background information on “1547 Implementation Lessons Learned” with discussion focusing on P1547a Amendment topics (Annex C). P1547a Amendment Topics. Background on the IEEE Std 1547, including the P1547a three amendment topics is provided in IEEE Std 1547.2.

Std 1547.2 pg 13 8.1.1 Voltage regulation (IEEE Std 1547-2003 4.1.1) NOTE—ANSI C84.1 was revised in 2006. However, no changes to ANSI C84.1-2006 [B3] were made applicable to IEEE Std 1547-2003.

Std 1547.2 Pg 57 8.2.3 Voltage – response to area EPS abnormal conditions (IEEE Std

1547-2003 4.2.3)

Std 1547.2 Pg 60 8.2.4 Frequency – response to area EPS abnormal conditions (IEEE Std 1547-2003 4.2.4)

The discussion on voltage regulation (IEEE Std 1547 clause 4.1.1) resulted in the following consensus amendment 1 draft text for working group feedback (redline strikeout, and blue font double underline added text). Also see Annex B slide 23 for 1547 4.1.1 original wording.


4.1.1 Voltage regulation The DR shall not actively regulate voltage at the PCC. Coordination with and approval of the Area EPS operator shall be required for the DR to actively regulate the voltage. The DR shall not cause the Area EPS service voltage at other Local EPSs to go outside the requirements of ANSI C84.1-1995, Range A.

The following text was discussed but the above was the consensus of the group.

The dr interconnection controls shall not respond to voltage changes within C84.1 Range B (yyyy) except as coordinated w/ area eps operator.

{the dr may provide voltage support at the pcc when agreed upon by dr owner and area eps operator.}

The dr shall not adversely affect the area eps operator ability to regulate area eps service voltage within the requirements of c84.1 1995 Range A.

1st sentence: The DR shall not actively regulate the voltage at the pcc … except in cooperation and agreement w/area eps operator.

The DR may actively regulate the voltage at the pcc in cooperation and agreement w/area eps operator.

The DR may actively regulate the voltage at the pcc with approval and coordination of the area eps operator.

The coordination and approval of the area eps operator shall be required for the DR to actively regulate the voltage.

The approval of the area eps operator shall be required for the DR to actively regulate the voltage.

… “at the pcc phrase” should be retained. For amendment topics of voltage and frequency response to area EPS abnormal conditions see Annex B slides 24-28 for background on Std. 1547 4.2.2 Voltage, and Std. 1547 4.2.3 Frequency, and original 1547 wording. Various statements in 1547 were highlighted, e.g., in IEEE Std 1547: - Table 4-1 and Table 4-2 provide default settings for response to abnormal voltage and frequency - for DR equal to or less than 30 kW, voltage and frequency settings may be fixed or field adjustable; - for DR greater than 30 kW, voltage and frequency settings shall be field adjustable. The full working group discussions on voltage and frequency did not establish amendment draft text for working group feedback. Instead, there was a separate breakout group for voltage and for frequency. Those groups reported back to the full working group during Friday morning to present a synopsis of their separate discussions and feedback to the full working group. For voltage response proposed revisions, it appeared the breakout group discussions had been heading toward a draft including: “baseline/default” voltage values; adding text on “must-stay


connected-V-regions (i.e., ride-through);” baseline/default clearing times; and “field-adjustable/flexible” V-range values and set-points. For frequency response proposed revisions, it appeared that breakout group discussion had been heading toward more qualitative revised wording for frequency-regions and set points (in contrast to the voltage group feedback). But this frequency response revised text approach was not an absolute “mini-consensus” for not-proposing “baseline/default” values and revised text for frequency. Future P1547a Activities. The full working group was invited to provide written feedback by January 15, 2013 for the three P1547a amendment topics, using the P1547a comment form, addressing the proposed draft text for voltage regulation, and, for proposals establishing responses to Area EPS abnormal voltage and abnormal frequency. The compilation of the feedback will be posted prior to next P1547a meeting. The next meeting of the P1547a working group is February 14 (8 am to 5pm) and February 15 (8 am to 1 pm) 2013, in Santa Clara CA hosted by Intel at their SC12 Auditorium facility. This meeting will be coupled with P1547.8 (Feb 12 & 13) and P2030.2 (Feb 11 & 12). The combined Meeting Agenda is provided on the web to assist you in making travel arrangements. NOTE: the correct Intel meeting facility is Intel SC12 Auditorium, 3600 Juliette Lane, Santa Clara CA 95054 (not 2200 Mission College Blvd). There are no hotel room discounts are available for this meeting. Chairmen Jim Daley and Tom Basso thanked the attendees for their participation. The meeting was adjourned at 12:15 pm. P1547a TIMELINE P1547a DEVELOPMENT TOPIC NOTES Nov. 29-30, 2012 P1547a inaugural meeting Jan. 15, 2013 Comment form proposals due to officers Late Jan. 2013 Compilation of inputs to be posted TBD* Feb. 14-15, 2013 P1547a meeting 2 a Mar? 2013 Comment form proposals due to officers TBD* Apr 2013? Compilation of inputs to be posted TBD* Spring 2013? P1547a meeting 3 (tentative) TBD* Spring/summer 2013? Comment form proposals due to officers TBD* Spring/summer 2013? Compilation of inputs to be posted TBD* Summer 2013 Comment form proposals due to officers TBD* August 2013 P1547a pre-ballot meeting TBD* Late summer/fall 2013 P1547a ballot pool invitation TBD* Fall 2013 P1547a ballot by IEEE ballot TBD* Fall/winter 2013 P1547a ballot recirculation(s) and ballot approval TBD* Calendar year 2013 IEEE publishes 1547 Amendment 1 TBD*

NOTES: * TBD = to be determined (a) combined meeting with P2030.2, and P1547.8 (tentative)


Respectfully Submitted, Thomas Basso, Chair P1547a Working Group Date: _12/12/12 __ ----------------------------------- -------------------------------- ---------------------------------

Annex A -- P1547a Meeting Attendees Nov 29 – 30, 2012 First Name Last Name Company Name Thomas (Tom) Basso National Renewable Energy Laboratory James M (Jim) Daley Facilities Electrical Consulting Services Marcelo Algrain Caterpillar Mark Baldassari Enphase energy Ryan Boudreau Hydro One Networks Inc Michael Brigandi NSTAR Sean Carr ComEd Matt Ceglia IEEE Michael Coddington National Renewable Energy Laboratory Nancy Connelly Duke Energy Richard (Dick) DeBlasio National Renewable Energy Laboratory Mamadou Diong Dominion Virginia Power Babak Enayati National Grid John Foster Advanced Energy Andris Garsils National Grid Sigifredo Goznalez Sandia National labs Joerg Grosshennig SMA Solar Technology AG Keith Harley Georgia Power Company Patrick Healey The United Illuminating Co. Al Hefner NIST Bradley Hicks NRECA Ruben Inzunza TMEIC HIROSHI IRIE Mitsubishi Research Institute Lu Jiang Solectria Renewables LLC Gerald Johnson Basler Electric Thomas Key EPRI Brian Lydic Fronius USA Jason MacDowell GE Hitoshi Maejima Mitsubishi Research Institute, Inc. Brenda Mancusco IEEE Barry Mather National Renewable Energy Laboratory Thomas McDermott University of Pittsburgh Rick Meeker FSU Center for Advanced Power Systems Russ Neal SCE ROBERT NELSON SIEMENS Jeff Newmiller BEW Engineering, a DNV Company PRASAD PMSVVSV Bloom Energy


James Reilly Reilly Associates D. Tom Rizy ORNL Bob Saint NRECA Roger Salas SCE Mark Siira ComRent International Mark Smith AEP Gary Smullin Smullin Engineering, Inc. Steve Steffel Pepco Holdings, Inc. Toe Sylvester Georgia Power Company Reigh Walling GE Keith Walters One Energy LLC Robert White Power-One Allen Windhorn Kato Engineering Nicolas Wrathall Kinectrics Michael Zuercher-

Martinson Solectria Renewables LLC


Annex B – Introductory slides P1547a Working Group Meeting

Slide 1

1

IEEE SCC21 1547TM Series Standards Development P1547a Working Group Meeting

Nov. 29 - 30, 2012 – Piscataway NJ

P1547a Draft Standard for Interconnecting Distributed

Resources with Electric Power Systems – Amendment 1

Co-Chairs: Jim Daley, [email protected]

Tom Basso, [email protected]

Slide 2

2

Agenda: P1547aThursday, Nov 29, 2012

8:00 am to 8:30 am Sign In

8:30 am to 9:00 am Welcome/introductions: Dick DeBlasio, SCC21 Chair (1547 founding Chair)

9:00 am to 9:30 amIEEE meeting information and draft agenda, and, P1547a project introduction: Tom Basso and Jim Daley, IEEE 1547a Co‐Chairs

9:30 am to 10:00 am P1547a amendment topics background: Jim Daley

10:00 am to 10:20 pm Break

10:20 am to 12:00 pm Discussion ‐ voltage regulation

12:00 pm to 1:15 pm Lunch – included in registration

1:15 pm to 3:00 pm Discussion ‐ response to area EPS abnormal conditions (voltage; frequency)

3:00 pm to 3:20 pm Break

3:20 pm to 4:30 pm Open discussion

4:30 pm to 5:00 pm Tomorrow’s Expectations: Jim and Tom

Friday, Nov 30, 2012

8:00 am to 8:30 am Sign In

8:30 am to 10:00 am Breakouts: Voltage; Frequency

10:00 am to 10:20 am Break

10:20 am to 11:30 am Open Discussion

11:30 – noon Next Steps: Jim and Tom; Meeting Adjourned ‐‐ Thank You!

12:00 pm Lunch – included in registration


Slide 3

IEEE Standards Coordinating Committee 21 SCC21: Fuel Cells, Photovoltaics, Dispersed Generation and Energy Storage

Chair: Dick DeBlasio Vice Chair: Tom Basso

SCC21 Scope and Purpose.

The IEEE Standards Coordinating Committee 21 oversees the development of standards in the areas of fuel cells, photovoltaics, dispersed generation, and energy storage, and coordinates efforts in these fields among the various IEEE societies and other affected organizations to insure that all standards are consistent and properly reflect the views of all applicable disciplines.

Reviews all proposed IEEE standards in these fields before their submission to the IEEE-SA Standards Board for approval and coordinates submission to other organizations.

3

Slide 4

IEEE Std 1547 Series History • IEEE Std 1547 approved by 230 ballot members (2003)

- total of 444 working group and ballot members

• IEEE Standards Board approved1547 (spring 2003)

• 1547 series of standards approved and published in following and various years • 1547 reaffirmed 2008

- IEEE 1547 mandatory IEEE review due 2018

• 1547 series ongoing activities: - P1547.7 (DR impacts)

- P1547.8 (expanded use of IEEE 1547)

- P1547a (Amendment 1 to IEEE Std 1547 -- scope based on

May 2012 Workshop)

4


Slide 5

IEEE 1547 Series Standards

http://grouper.ieee.org/groups/scc21/index.htm

l

5

Slide 6

P1547a: IEEE Std 1547 - Amendment 1

Scope.

Establish updates to voltage regulation, and, response to area EPS abnormal conditions of voltage and frequency. Additionally, consider if other changes are absolutely necessary in response to updates to be established under preceding topics.

6


Slide 7

Purpose. (unchanged from IEEE Std 1547)

This document provides a uniform standard for interconnection of distributed resources with electric power systems. It provides requirements relevant to the performance, operation, testing, safety considerations, and maintenance of the interconnection.

P1547a: IEEE Std 1547 - Amendment 1

7

Slide 8

8

IEEE Standards Classification

Standard: documents with mandatory requirements

(shall)

Recommended Practice: documents in which

procedures and positions preferred

by the IEEE are presented (should)

Guide: documents in which alternative (different) approaches to good practice are suggested but no clear-cut recommendations are made (may)


Slide 9

9

Participants, Patents, and Duty to InformAll participants in this meeting have certain obligations under the IEEE-SA Patent Policy. Participants:

“Shall inform the IEEE (or cause the IEEE to be informed)” of the identity of each “holder of any potential Essential Patent Claims of which they are personally aware” if the claims are owned or controlled by the participant or the entity the participant is from, employed by, or otherwise represents

“Personal awareness” means that the participant “is personally aware that the holder may have a potential Essential Patent Claim,” even if the participant is not personally aware of the specific patents or patent claims

“Should inform the IEEE (or cause the IEEE to be informed)” of the identity of “any other holders of such potential Essential Patent Claims” (that is, third parties that are not affiliated with the participant, with the participant’s employer, or with anyone else that the participant is from or otherwise represents)

The above does not apply if the patent claim is already the subject of an Accepted Letter of Assurance that applies to the proposed standard(s) under consideration by this group

Quoted text excerpted from IEEE-SA Standards Board Bylaws subclause 6.2

Early identification of holders of potential Essential Patent Claims is strongly encouraged

No duty to perform a patent search

Slide 10

10

Patent Related Links

All participants should be familiar with their obligations under the IEEE-SA Policies & Procedures for standards development.Patent Policy is stated in these sources:

IEEE-SA Standards Boards Bylawshttp://standards.ieee.org/guides/bylaws/sect6-7.html#6

IEEE-SA Standards Board Operations Manualhttp://standards.ieee.org/guides/opman/sect6.html#6.3

Material about the patent policy is available athttp://standards.ieee.org/board/pat/pat-material.html

If you have questions, contact the IEEE-SA Standards Board Patent Committee Administrator at [email protected] or visit http://standards.ieee.org/board/pat/index.html

This slide set is available at http://standards.ieee.org/board/pat/pat-slideset.ppt


Slide 11

11

Call for Potentially Essential Patents

If anyone in this meeting is personally aware of the holder of any patent claims that are potentially essential to implementation of the proposed standard(s) under consideration by this group and that are not already the subject of an Accepted Letter of Assurance: Either speak up now or

Provide the chair of this group with the identity of the holder(s) of any and all such claims as soon as possible or

Cause an LOA to be submitted

Slide 12

12

Other Guidelines for IEEE WG Meetings

All IEEE-SA standards meetings shall be conducted in compliance with all applicable laws, including antitrust and competition laws.

Don’t discuss the interpretation, validity, or essentiality of patents/patent claims.

Don’t discuss specific license rates, terms, or conditions.

Relative costs, including licensing costs of essential patent claims, of different technical approaches may be discussed in standards development meetings.

Technical considerations remain primary focus

Don’t discuss or engage in the fixing of product prices, allocation of customers, or division of sales markets.

Don’t discuss the status or substance of ongoing or threatened litigation.

Don’t be silent if inappropriate topics are discussed … do formally object.---------------------------------------------------------------

See IEEE-SA Standards Board Operations Manual, clause 5.3.10 and “Promoting Competition and Innovation: What You Need to Know about the IEEE Standards Association's Antitrust and Competition Policy” for

more details.


Slide 13

13

IEEE 1547 Series Web Site

1547 series public Web site http://grouper.ieee.org/groups/scc21/dr_shared/

Meeting information Registration Information Agenda Minutes Listserv – listserv archived e-mails

Slide 14

14

IEEE 1547 Series Listserv subscribing http://grouper.ieee.org/groups/scc21/1547a/1547a_listserv.html

“self-subscribe” to the p1547a, p1547.7 and p1547.8 listservs by following these steps:

Send an e-mail to [email protected] with the following command in the body of the e-mail

Subscribe stds-p1547a lastname, firstnameEnd

replace p1547a with p1547.8 or p1547.7 as desired

Thanks!


Slide 15

Next Actions IEEE SCC21 meetings and ballots

• December 2012 P1547.7 ballot invitation

• January 2013 P1547.7 IEEE ballot

• Jan 15 P1547a comments due to officers to post

• February 11 – 14, 2013 combined meetings --P2030.2, P1547.8, and P1547a

• Spring 2013? Meeting of P1547a Amendment 1

• Summer 2013: Combined meetings (P2030.2, P1547.8, and P1547a) - typically August

• Fall 2013: IEEE ballot P1547a Amendment 1

• Fall 2013: IEEE Ballot P1547.8

• EOY 2013: IEEE P1547 full revision initiation; e.g., beyond 10 MVA; consider 1547.1 combined w/1547?

15

Slide 16

IEEE P1547.a Amendment topics (11/30/12)

P1547a background in IEEE Std 1547.2 reference:

• Std 1547.2 pg 13 clause 8.1.1 Voltage regulation (IEEE Std 1547 4.1.1)

• Std 1547.2 Pg 57 clause 8.2.3 Voltage – response to area EPS abnormal conditions (IEEE Std 1547-2003 4.2.3)

• Std 1547.2 Pg 60 clause 8.2.4 Frequency – response to area EPS abnormal conditions (IEEE Std 1547-2003 4.2.4)

16


Slide 17

1. Overview

2. Definitions

3. References

4. Interconnection Technical Specifications and Requirements

5. Test Specifications and Requirements

Annex A (informative)Bibliography

ANSI/IEEE Standard 1547 (2003, reaffirmed 2008)

17

Slide 18

IEEE Std 1547.2 (application guide to IEEE 1547)

… background and rationale of {IEEE 1547} technical requirements are discussed… Presented ... are technical descriptions, schematics, applications guidance, and interconnection examples to enhance the use of IEEE 1547...

18Figure A.1 – Functional diagram of an interconnection system

Interconnection system

(within dashed lines)

Local EPS protective relaying

DR unit electric generator

Area EPS

protective

relaying

Area EPS

power

system

( g rid)

DR control

DR monitoring/

metering

Point of common coupling

Meter

Power conversion, DR protective relaying, DR

paralleling switch

Dispatch and control

Power distribution

DC loads

TAT Unit

(heat recovery,

cooling,

storage)

TAT unit (heat recovery,

cooling, storage)

Thermalloads

Power flow

Thermal flow

Operational control

AC loads

Transfer switch or paralleling switchgear

Area EPS

DR unit (Prime movers,

generator, storage

18


Slide 19

1-2-3 Overview, Definitions, References

4.0 Interconnection Technical Specifications and Requirements: . General Requirements . Response to Area EPS

Abnormal Conditions. Power Quality. Islanding 5.0 Test Specifications and Requirements: . DesignTests. Production Tests . Interconnection Installation

Evaluation . Commissioning Tests . Periodic Interconnection

Tests

ANSI/IEEE Standard 1547 (2003, reaffirmed 2008)

19

Slide 20

20

Local EPS 1

Area Electric Power System (EPS)

Local EPS 3

PCC

Point of DRConnection

DR unit

Local EPS 2

Point of DRConnection

Point of Common Coupling (PCC)

Note: There can be any number of Local EPSs.

PCC

DR unitLoad Load

1547 Interconnection Terms


Slide 21

Std 1547 4. Interconnection technical specifications and requirements

21

The requirements in this clause shall be met at the PCC, although the devices used to meet these requirements can be located elsewhere. The requirements apply to interconnection of either a single DR unit based on that unit’s rating or multiple DR units within a single Local EPS, based on the aggregate rating of all the DR units that are within the Local EPS. The functions of the interconnection system hardware and software that affect the Area EPS are required to meet this standard regardless of their location on the EPS.

The requirements in this clause are functional and do not specify any particular equipment or equipment type.

The stated technical specifications and requirements are universally needed for interconnection of DR, including synchronous machines, induction machines, or static power inverters/converters, and will be sufficient for most installations. 7

FN 7 Additional technical requirements may be necessary for some limited situations.

Slide 22

• Voltage Regulation• Integration with Area

EPS Grounding• Synchronization• DR on Secondary

Grid and Spot Networks

4.1 General Requirements

• Inadvertent Energization of the Area EPS

• Monitoring Provisions• Isolation Device• Interconnect Integrity

Std 1547 4. Interconnection Technical Specifications and Requirements (cont’d)

22


Slide 23


23

4.1.1 Voltage regulation

The DR shall not actively regulate the voltage at the PCC. The DR shall not cause the Area EPS service voltage at other Local EPSs to go outside the requirements of ANSI C84.1-1995, Range A.

Slide 24

• Area EPS Faults

• Area EPS Reclosing Coordination

• Voltage *

4.2 Response to Area EPS AbnormalConditions

• Frequency *

• Loss of Synchronism

• Reconnection to Area EPS


* Notes: Table 4-1 and Table 4-2 provide default settings for response to abnormal voltage and frequency - for DR equal to or less than 30 kW, voltage and frequency settings may be fixed or field adjustable; - for DR greater than 30 kW, voltage and frequency settings shall be field adjustable.

24


Slide 25

Slide 26

26

Voltage range(% of base voltage a )

Clearing time(s) b

V< 50 0.16

50≤ V< 88 2.00

110< V < 120 1.00

V ≥ 120 0.16

(4.2.3 Voltage – cont’d) Table 1—Interconnection system response to abnormal voltages

a Base voltages are the nominal system voltages stated in ANSI C84.1-1995, Table 1.

b DR ≤ 30 kW, maximum clearing times; DR > 30kW, default clearing times.

4.2 Response to Area EPS abnormal conditions10

FN 10: The isolation of a portion of the Area EPS, present ing the potential for an unintended DR island, is a special concern and is addressed in 4.4.1.Setting adjustments may only be made as approved by the authority who has jurisdiction over the DR interconnection.

25

4.2.3 Voltage The protection funct ions of the interconnect ion sys tem shall detec t the effective (rms) or

fundamental f requency value of each phase-to-phase voltage, except where the transformer connect ing the Local EPS to the Area EPS is a grounded wye-wyeconfigurat ion, or single-phase installation, the phase-to-neutral voltage shall be detected. When any voltage is in a range given in Table 1, the DR shall cease to energize the Area EPS within the clearing time as indicated. Clearing time is the t ime between the start of the abnormal condition and the DR ceasing to energize the Area EPS. For DR less than or equal to 30 kW in peak capacity, the voltage set points and clearing t imes shall be either f ixed or field adjustable. For DR greater than 30 kW, the voltage set points shall be f ield adjustable.

The voltages shall be detected at either the PCC or the point of DR connection when any of the following condit ions exist:

(a) The aggregate capacity of DR systems connected to a single PCC is less than or equal to 30 kW,

(b) The interconnection equipment is cert if ied to pass a non-islanding test for the sys tem to which it is to be connected,

( c ) The aggregate DR capacity is less than 50% of the total Local EPS minimum annual integrated elec-trical demand for a 15 minute time period, and export of real or reactive power by the DR to the Area EPS is not permitted.


FN 10: The isolation of a portion of the Area EPS, present ing the potential for an unintended DR island, is a special concern and is addressed in 4.4.1.Setting adjustments may only be made as approved by the authority who has jurisdiction over the DR interconnection.

25

4.2.3 Voltage The protection funct ions of the interconnect ion sys tem shall detec t the effective (rms) or

fundamental f requency value of each phase-to-phase voltage, except where the transformer connect ing the Local EPS to the Area EPS is a grounded wye-wyeconfigurat ion, or single-phase installation, the phase-to-neutral voltage shall be detected. When any voltage is in a range given in Table 1, the DR shall cease to energize the Area EPS within the clearing time as indicated. Clearing time is the t ime between the start of the abnormal condition and the DR ceasing to energize the Area EPS. For DR less than or equal to 30 kW in peak capacity, the voltage set points and clearing t imes shall be either f ixed or field adjustable. For DR greater than 30 kW, the voltage set points shall be f ield adjustable.

The voltages shall be detected at either the PCC or the point of DR connection when any of the following condit ions exist:

(a) The aggregate capacity of DR systems connected to a single PCC is less than or equal to 30 kW,

(b) The interconnection equipment is cert if ied to pass a non-islanding test for the sys tem to which it is to be connected,

( c ) The aggregate DR capacity is less than 50% of the total Local EPS minimum annual integrated elec-trical demand for a 15 minute time period, and export of real or reactive power by the DR to the Area EPS is not permitted.


Slide 27


FN 10: The isolation of a portion of the Area EPS, presenting the potential for an unintended DR island, is a special concern and is addressed in 4.4.1.Setting adjustments may only be made as approved by the authority who has jurisdiction over the DR interconnection.

27

4.2.4 Frequency When the system frequency is in a range given in Table 2, the DR shall cease to energize the Area EPS within the clearing time as indicated. Clearing time is the time between the start of the abnormal condition and the DR ceasing to energize the Area EPS. For DR less than or equal to 30 kW in peak capacity, the fre-quency set points and clearing times shall be either fixed or field adjustable. For DR greater than 30 kW, the frequency set points shall be field adjustable.

Adjustable under-frequency trip settings shall be coordinated with Area EPS operations.

Slide 28

28

(4.2.4 Frequency – cont’d)Table 2—Interconnection system

response to abnormal frequencies

DR sizeFrequency range

(Hz)Clearing time (s) a

≤ 30 kW> 60.5 0.16

< 59.3 0.16

> 30 kW > 60.5 0.16

< {59.8 – 57.0}(adjustable set point)

Adjustable 0.16 to 300

< 57.0 0.16a DR ≤ 30 kW, maximum clearing times;

DR > 30 kW, default clearing times.


Slide 29

IEEE Std 1547.1 (2005; reaffirmed 2011)

… Standard for Conformance Test Procedures …specifies the type, production, and commissioning tests that shall be performed to demonstrate that interconnection functions and equipment of a distributed resource (DR) conform to IEEE Std 1547.

1547.1 Figure 1 - Boundaries between the interconnection system, EPS and DR.

29

-------- end slide set ------------


Annex C – Background slides: 1547 Implementation Lessons Learned

Jim Daley

Slide 1

IEEE 1547 Implementation

Lessons Learned

Jim Daley

IEEE SCC21 1547TM Series Standards Development P1547a Working Group Meeting

Nov. 29 ‐ 30, 2012 – Piscataway NJ

Slide 2

Lessons Learned

• Requirements

– 4.1.1 – “…DR shall not actively regulate…”

– 4.2.3 – Voltage isn’t always within ANSI Range A

– 4.2.4 – Sometimes low frequency ride through might be desirable.


Slide 3

4.1.1 – “…DR shall not actively regulate…”

• The less schooled in the science and art of power generation might interpret this to mean that the DR can only provideWatts.

• It has been recognized that DRs can provide VARS.

• VARS from DRs can be beneficial to the EPS.

• 1547 should provide for DR VARS when it is mutually agreeable.

Slide 4

4.2.3 – Voltage isn’t always within ANSI Range A

• The EPS bus determines DR operatigngvoltage

• EPS Operator dynamics cause changes in EPS Voltage (i.e. switching radial Among substations)

• Operating characteristics of infrastructure


Slide 5

4.2.4 – Sometimes low frequency ride through might be desirable.

• DR shut off when bus frequency is falling may add to the problem

Slide 6

F3F2F1 F6F5F4

T

F3F2F1 F6F5F4 F7

F3F2 F4

D G G

ESS -CUP -

1N

ESS -DT - 1

CHLR

SS -CUP - 1

CHLR

EMCHLR CUP

ATS

2.5MVA

2.5MVA

1.5MVA

1.5MVA

12.47 KV SWGR

10 MVA

1.5MVA

1MVA

1MVA

1MVA

2MVA

12.47 KV SYSTEM

2.5MVA

2.375MVA

2.375MVA

SS - DT - 1 SS – NWP - 1

MVSG – CUP - 1

PARALLELINGSWITCHGEAR

F5F1

BUS A BUS B

BUS G

LEGENDD – DIESEL GENERATORG – NATURAL GAS GENERATORFn – FEEDERMG – GENERATOR MAINMU – UTILITY MAINT – BUS TIESR - Siprotect multi function protective elay

RADTHERAPY

EMERGENCYDEPT CHLR

TOWERPENT-

HOUSE

TOWERPENT-

HOUSE

TOWERXRAY

TOWERXRAY

MUMG

PRI # 1 PRI # 1PRI # 2 PRI # 2PRI # 4

PRI # ? PRI # ? PRI # ? PRI # ? PRI # ? PRI # ? PRI # ? PRI # ? PRI # ? PRI # ? PRI # ? PRI # ?


Slide 7

PECO 35 kV Dist

ServiceSwgr

F4

F5

M MT

TGAux

TG

5kV Gen Swgr

C C

C C C

5 MVA

Slide 8

5051

5051N

(3) (1)

50/51, 50/51N, 67,27/59,81U/O, 37, 46,47

(3)1200:5

(3)1200:5

(3)14,400-120

Incoming Line12 kV

Preferred Line

52-115 kV

500 MVA

5051

5051N

(3) (1)

50/51, 50/51N, 67,27/59,81U/O, 37, 46,47

(3)1200:5

(3)1200:5

(3)14,400-120

Incoming Line 12 kV

Stand-By Line

52-115 kV

500 MVA

Revenue MeteringCTs & PTs

by PPL

52Fn

52Fn

52G(3)

14,400-120

(3)14,400-120

25

(3) 50/5150N/51N

SW1200A

GeneratorIncoming LIne

(3)

(3)

600:5

600:5

150:5

1

1 Replace 3 existing 1200:5 CTs with 3 150:5 CTs. Add (3) 150:5 CTS and STB for controls and protection.

2

2 Add 2 sets of (3) 600:5 CTs on line side of Main Bus Disc Sw. Include STCBs for each set of CTs.

To Beckwith M 3520 in controls

SCTB

SCTB

To controls and protection

150:5

(3)SCTB

To Generator control & Protection

End P1547a Meeting Minutes Nov 29-30, 2012 .

ieee scc21 p1547a working group meeting 1 meeting...

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