ieee p1159.3 pqdif task force web...

Chair: Daniel SabinElectrotek Concepts, [email protected]

January 12, 2015Garden Grove, California, USA

IEEE P1159.3 PQDIF Task Force Web Meeting

mailto:[email protected]

http://www.ieee.org/organizations/society/power/power.html


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IEEE P1159.3 Task Force Web Meeting – January 12, 2015

Meeting Agenda

• Patent Notice

• Task Force Overview

• Status of PAR

• Proposals for New PQDIF IDs

• Next Steps

• Next Meeting



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IEEE P1159.3 Task Force

IEEE Power & Energy Society

• Transmission & Distribution Committeehttp://grouper.ieee.org/groups/td/

– Power Quality Subcommitteehttp://grouper.ieee.org/groups/td/pq/

• P1159.3 PQDIF Task Forcehttp://grouper.ieee.org/groups/1159//3

– Chair: Daniel Sabin ([email protected])

– Secretary: Rich Bingham ([email protected])



http://grouper.ieee.org/groups/td/

http://grouper.ieee.org/groups/sag/

http://grouper.ieee.org/groups/1159/



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What is IEEE PQDIF?

• PQDIF is defined in IEEE Std 1159.3-2003

– a “recommend practice” for power quality data interchange format that allows exchange of measurements and simulation results between computer hardware and software systems

• PQDIF is a binary format that features optional lossless compression using zlib

• The initial standard was approved by IEEE RevCom in 2003 and was reaffirmed in 2008. With the ten-year lifecycle for IEEE standards, a revision must be completed by December 2018.



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Recent Administrative Activity

• Although most of the working groups and tasks forces of the IEEE SCC-22 Standards Coordinating Committee were transferred to the IEEE PES Power Quality Subcommittee in July 2002, the IEEE P1159.3 Task Force was still under IEEE SCC-22.

• The IEEE P1159.3 Task Force was officially transferred from SCC-22 to IEEE PQ Subcommittee in March 2014.



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PAR Application to IEEE New Standards Committee (NesCom) for P1159.3 Revision

• A Project Authorization Request (PAR) is the means by which standards projects are started within the IEEE-SA. PARs define the scope, purpose, and contact points for the new project.

• The task force submitted a PAR to NesCom on May 23, 2014 to revise IEEE Std. 1159.3.

• The PAR was approved at the August 21, 2014 meeting of NesCom in Beijing.

• The P1159.3 Task Force was set up as a working group when NesCom approved the PAR, and this is the name of the group in IEEE SA web site

– 1159.3 Working Group for Transfer of Power Quality Data

• The PAR was approved until December 2018, which is the same date when IEEE Std 1159.3-2003 would expire without revision.



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P1159.3 Revision Title and Objectives

Title

– Recommended Practice for Power Quality Data Interchange Format (PQDIF)

Objectives

1. To complete editorial changes and corrections to the 2003 edition of IEEE Std. 1159.3

2. To add new ID values for existing PQDIF tags

3. To add new tags and ID values

4. To add new quantity types

5. To add an annex on the representation of PQDIF in XML

6. To add an annex on PQDIF and its relationship to IEC 61850

7. To add an annex on PQDIF and its relationship to IEEE C37.111 COMTRADE



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PQDIF News: P1159.3 Software Libraries Download from http://grouper.ieee.org/groups/1159/3/docs.html

IEEE PQDIF Libraries

• Source Code for C++ Libraries for Reading and Writing PQDIF Files

• Updated in August 2014 to expand maximum number of samples in a single series instance to 16 million from current limit of 1 million.

PQDCOM4.DLL

• Source Code for Microsoft Windows ActiveX/COM Library for reading and writing PQDIF files

• Intended for Use with VB6, Microsoft Office VBA, MATLAB, and unmanaged C++.

PQDIF.NET

• Source Code for Microsoft Windows .NET Component Library for reading and writing PQDIF files that has similar interfaces to PQDCOM4.DLL

• Intended for Use with .NET Applications Built using C# or VB.NET



http://grouper.ieee.org/groups/1159/3/docs.html

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PQDIF News: P1159.3 Software Application Download from http://grouper.ieee.org/groups/1159/3/docs.html

PQDiffractor

• Application for viewing/debugging PQDIF files in charts and tables

• February 2014

– Now detects mismatch tagChannelFrequency and tagChannelGroupID with ID_QC_SPECTRA and ID_QC_SPECTRA_HGROUP or ID_QC_SPECTRA_IGROUP

• October 2014

– Now supports automatic conversion to other PQDIF files or XML files using command line options

• December 2014

– Now supports viewing IEEE C37.111 COMTRADE files



http://grouper.ieee.org/groups/1159/3/docs.html

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PQDIF News: NVE 1557

• All grid companies in Norway need to submit a PQDIF file for at least one power quality monitor to the Norwegian regulator (NVE) by February 1.

• The PQDIF file will contain rms voltage, Pst, Plt, negative-sequence unbalance, and rms voltage variations for voltage sags, swells, and rapid voltage events.



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P1159.3 Objectives: Add New ID values for Existing PQDIF tags

IEEE Std. 1453.1-2012

• Action Item from 2014 IEEE PES General Meeting

• Add descriptions for these quantity characteristics, which are intermediate values in the flicker meter algorithm.

– ID_QC_FLKR_PILPF

– ID_QC_FLKR_PIMAX

– ID_QC_FLKR_PIROOT

– ID_QC_FLKR_PIROOTLPF

• Add

– ID_QC_FLKR_P



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New Web Site Created in July 2012 to Assist in Collecting Information for New PQDIF IDs

• The task force has created a web site that will allow users an easy way to submit new IDs for existing tags

• www.pqdif.info



http://www.pqdif.info/

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New ID Values Submitted Since Last Meeting

Name of Tag Name Description Recommendation

tagEquipmentID ID_EQUIP_CANDURA_PQPRO

CANDURA Instruments PQPro Approved

tagDisturbanceCategoryID URB_1159_WAVEDISTORT_INTERHARMONIC

RVC event as per IEC 61000-4-30 Needs Clarification

tagEquipmentID ID_EQUIP_CANDURA_EP600

CANDURA Instruments EnergyPro Approved

tagEquipmentID ID_EQUIP_CANDURA_PQPMU

CANDURA Instruments PQPMU Approved

tagEquipmentID ID_EQUIP_CANDURA_PVII

CANDURA Instruments PVII Approved

tagQuantityCharacteristicID ID_QC_DURATION Duration Approved

tagQuantityCharacteristicID ID_QC_TIME_OFFSET Time Approved



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Rapid Voltage Change (RVC)

• IEC 61000-4-30 Rev. 3 FDIS: “a quick transition in r.m.s. voltage occurring between two steady-state conditions, and during which the r.m.s. voltage does not exceed the dip/swell thresholds”

– (The National Committees needed to return their votes on Revision 3 last Friday.)

• Detected using a moving one-second rms window with triggering thresholds and hysteresis

• Approved by IEEE P1159.3 Task Force at Last Meeting:

– ID_QC_RVC_DELTA UMAX and ID_QC_RVC_DELTA USS

Umin

Umax

ΔUmax = 4.32%ΔUss = 4.32%

98.5

99.0

99.5

100.0

100.5

101.0

101.5

102.0

102.5

103.0

103.5

-0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2

ΔUmax = 4.32% RVC ΔUss = 4.32%

Voltage (

%)

Time (s)

Vab Vbc Vca



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Changes to ID_QT_MAGDURTIME

• Current IEEE 1159.3-2003

– “The high-level description of the type of quantity which is being captured by this channel. In order to guarantee reader compatibility, the following series value types (in order) should be used.”

• ID_QT_MAGDURTIME

– TIME, VAL, DUR

• Proposed Change for IEEE 1159.3 Revision

– Expand list of allowed value types:

• TIME, VAL, DUR, MIN, AVG, MAX

– Provide Examples for Storing

– Single RMS Variation

– RMS Variation Event List

– Transient Event List

– Rapid Voltage Change Event List



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Example Channel Definitions for Simple RMS Variation Event List using ID_QT_MAGDURTIME

Channel Instance

SeriesInstance

ValueTypeID QuantityMeasuredID

PhaseID QuantityUnitsID

QuantityCharacteristicID

0 0 TIME VOLTAGE AN SECONDS TIME0 1 VAL VOLTAGE AN VOLTS RMS0 2 DURATION VOLTAGE AN SECONDS DURATION1 0 TIME VOLTAGE BN SECONDS TIME1 1 VAL VOLTAGE BN VOLTS RMS1 2 DURATION VOLTAGE BN SECONDS DURATION2 0 TIME VOLTAGE CN SECONDS TIME2 1 VAL VOLTAGE CN VOLTS RMS2 2 DURATION VOLTAGE CN SECONDS DURATION



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Example Channel Definitions for RMS Variation Event List using ID_QT_MAGDURTIME

Channel Instance

SeriesInstance




0 0 TIME VOLTAGE AN SECONDS TIME_OFFSET

0 1 MIN VOLTAGE AN VOLTS RMS

0 2 AVG VOLTAGE AN VOLTS RMS

0 3 MAX VOLTAGE AN VOLTS RMS

0 4 DURATION VOLTAGE AN SECONDS DURATION

1 0 TIME VOLTAGE BN SECONDS TIME_OFFSET

1 1 MIN VOLTAGE BN VOLTS RMS

1 2 AVG VOLTAGE BN VOLTS RMS

1 3 MAX VOLTAGE BN VOLTS RMS

1 4 DURATION VOLTAGE BN SECONDS DURATION

2 0 TIME VOLTAGE CN SECONDS TIME_OFFSET

2 1 MIN VOLTAGE CN VOLTS RMS

2 2 AVG VOLTAGE CN VOLTS RMS

2 3 MAX VOLTAGE CN VOLTS RMS

2 4 DURATION VOLTAGE CN ISECONDS DURATION



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Example Channel Definitions for RVC Event List using ID_QT_MAGDURTIME

Channel Instance

SeriesInstance





0 1 VAL VOLTAGE AN VOLTS RVC_DELTA_UMAX

0 2 VAL VOLTAGE AN VOLTS RVC_DELTA_USS



1 1 VAL VOLTAGE BN VOLTS RVC_DELTA_UMAX

1 2 VAL VOLTAGE BN VOLTS RVC_DELTA_USS



2 1 VAL VOLTAGE CN VOLTS RVC_DELTA_UMAX

2 2 VAL VOLTAGE CN VOLTS RVC_DELTA_USS

2 3 DURATION VOLTAGE CN SECONDS DURATION



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Example Channel Definitions for Transient Event List using ID_QT_MAGDURTIME

Channel Instance

SeriesInstance





0 1 VAL VOLTAGE AN VOLTS PEAK



1 1 VAL VOLTAGE BN VOLTS PEAK



2 1 VAL VOLTAGE CN VOLTS PEAK

2 2 DURATION VOLTAGE CN SECONDS DURATION



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Proposed Annex on Representationof PQDIF in XML



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Feedback from CIGRÉ/CIRED Joint Working Group C4.112 on Power Quality Monitoring

• The industry needs a simple text file format to facilitate light implementations that cannot include a C++, COM, or .NET Library.

• PQDIF is precise but requires a lot of expertise.

• Proposed Solution

– In addition to defining the verbose, complete representation of a PQDIF file in XML, we could define an XML representation of a PQDIF observation record with just enough information from the data source record and/or monitor settings records that would identify the monitor name (e.g., MyMonitor), channel definitions (e.g., RMS Voltage Phase A), and series definitions (e.g., Average) with a nominal base voltage of 12 kV and a nominal fundamental frequency of 50 Hz.



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Proposed Annex on PQDIF’s Relationshipto IEC 61850

• IEC 61850-8-1 defines file classes that can be mapped to the Manufacturing Message Specification (MMS) file object.

– PQDIF Files and COMTRADE Files,

– Other supported file types: bin, dtd, gif, htm, txt, xml, xsd, zip

• IEC TC57 and TC85 are collaborating on a new technical report: TR IEC 61850-90-17

– If the recommendations of the report are adopted by IEC TC 57, a new logical node with the working title “Continuous Power Quality recorder” will be implemented in IEC 61850-7-4 Ed. 3

• IEEE PQDIF Std. 1159.3-2003 is the preferred file format.

– A first draft of IEC TR 61850-90-17 “Using IEC 61850 to transmit Power Quality data” is available for comment (DC or “Draft for Comment”).

– We need to provide feedback on the draft document

• We should incorporate a summary of the TR in our proposed annex to the revised IEEE Std. 1159.3



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Feedback from Joint Working Group of IEC TC85/TC57

• Add rapid voltage change (RVC) single-event characteristics and an RVC event list

• Add flagging to indicate when power quality disturbances occur to allow a given ten-minute value (e.g., 10-minute short-term flicker perception Pst) could be filtered because the 10-minute interval included a voltage sag.

– Only method available now: store single events or an event list of voltage sags, swells, etc., which indirectly can be used to know which 10-minute intervals should be filtered.

• However, many PQ monitors are not including events; they include a “flag” on each ten-minute interval. We do not have a place in a value log observation record for storing the flags.

– Proposal: Allow storage of an observation list that would be the timestamps of value logs that could be filtered.



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Proposed Annex of PQDIF’s Relationship to IEEE/IEC COMTRADE

• COMTRADE now has a dual IEEE/IEC logo

• The H26 Working Group in the Power Systems Working Group completed a COMTRADE conformity test plan document in December 2014.

• We plan to include an annex that compares PQDIF and COMTRADE

• Source material for the annex could draw on the IEEE Power Systems Relaying Committee Working Group H5C report on “Common Data Format for IED Sampled Data”

– Summarized PQDIF, COMTRADE, and 61850

– Explained issues related to converting data between the formats



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CIRED 2015 Paper

• Paper Abstract Accepted for CIRED 2015 Conference

– “Revision of IEEE Std 1159.3 PQDIF”

• The full paper is due this Friday.

• If accepted, the paper will be published in the CIRED 2015 Proceedings at Lyon, France in June 15-18



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Next P1159.3 Task Force Meeting

• 2015 IEEE PES General Meeting

• July 2015

• Denver, Colorado, USA



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