Standard: IEEE 1159.3

RECOMMENDED PRACTICE FOR THE TRANSFER OF POWER QUALITY DATA

This standard is available for individual purchase.

or unlock this standard with a subscription to IHS Standards Expert

IHS Standards Expert subscription, simplifies and expedites the process for finding and managing standards by giving you access to standards from over 370 standards developing organizations (SDOs).

FEATURES & BENEFITS
  • Maximize product development and R&D with direct access to over 1.6 million standards
  • Discover new markets: Identify unmet needs and discover next-generation technologies
  • Improve quality by leveraging consistent standards to meet customer and market requirements
  • Minimize risk: Mitigate liability and better understand compliance regulations
  • Boost efficiency: Speed up research, capture and reuse expertise
For additional product information, visit the IHS Standards Expert page.

HOW TO SUBSCRIBE
For more information or a custom quote, visit the IHS Contact Us page for regional contact information.
Scope:

Develop a recommended practice for a file format suitable for exchanging power quality-related measurement and simulation data in a vendor-independent manner. Appropriate definitions and event categories to be developed by other task forces under the IEEE Standards Coordinating Committee 22 (SCC-22) on Power Quality and the IEEE 1159 Working Group on Power Quality Monitoring.

Purpose

A variety of simulation, measurement, and analysis tools for power quality engineers are now available from many vendors. Generally, the data created, measured, and analyzed by these tools are incompatible between vendors. The proposed file format will provide a common ground that all vendors could export to and import from to allow the end user maximum flexibility in choice of tool and vendor.

There are two "layers" to this Power Quality Data Interchange Format (PQDIF): the physical layer and the logical layer. The physical layer describes the physical structure of the file without regard to what will actually be stored in it. It uses tags to identify particular elements of the file. This is similar in concept to tagged image file format (TIFF), used for storing images.

The logical layer uses the structure defined by the physical layer; it specifies specific tags to use when building up elements in the file.

The physical layer is based on

— Specific "physical" data types (e.g., INT1, INT2, INT4, REAL4, REAL8, etc.) for portability and a specific list of IDs for physical representation (e.g., ID_SERIES_PHYS_TYPE_INTEGER1, etc.)

— 4 byte alignment for efficient processing

— Little endian byte ordering (least significant byte stored first, ordering used in PCs)

— Tags, using globally unique identifiers (GUIDs), for unique identification of elements (hereafter called "tags")

The logical layer is based on

— Specific lists of tags to identify elements of a file

— A hierarchy of tags and expected physical types

— Extensibility using user-defined tags for private data

— Extensibility of the standard format using tags defined in the future

To keep things simple, many elements in the logical layer are based on an explicit list of enumerated IDs, such as

— Phase (ID_PHASE_AN, ID_PHASE_BN, etc.)

— IEEE 1159 disturbance category (ID_1159_TRANSIENT, ID_1159_SHORTDUR, etc.)

— High-level quantity type (ID_QT_WAVEFORM, ID_QT_RMS, etc.)

— Series quantity units (ID_QU_TIMESTAMP, ID_QU_VOLTS, ID_QU_AMPS, etc.)

— Series value type (ID_SERIES_VALUE_TYPE_MIN, ID_SERIES_VALUE_TYPE_MAX, etc.)

Once you understand the physical and logical formats of PQDIF, you will still need some guidelines on how to use it to represent real-world data. Please refer to Annex A and Annex B for details on how to represent various types of data. Also, third parties have created PQDIF tools and development kits to facilitate getting up to speed on PQDIF. The IEEE 1159 working group web site (http://grouper.ieee.org/groups/1159/3/doc.html) has public domain example data files, programs, and source code. Annex C documents a commonly implemented disk directory structure for containing multiple PQDIF files.

Organization: The Institute of Electrical and Electronics Engineers, Inc.
Document Number: ieee 1159.3
Publish Date: 2003-03-20
Page Count: 126
Change Type: REAF
Available Languages: EN
DOD Adopted: NO
ANSI Approved: YES
Most Recent Revision: YES
Current Version: YES
Status: Active

Document History

Document # Change Type Update Date Revision Status
IEEE 1159.3 Change Type: STCH Update Date: 2003-03-20 Revision: 03 Status: INAC

This Standard References

Showing 3 of 3.

IETF RFC 1950
IETF RFC 1951

Standards That Reference This Standard

Showing 1 of 1.


Advertisement
Advertisement
Advertisement
Advertisement