Welcome to the EPRI Power Quality Online Resource Center!
This site is provided for the benefit of funders of the EPRI Power Quality Knowledge program (PS1D). For those seeking to learn more about EPRI PQ Knowledge, please contact me, Bill Howe, Program Manager of Power Quality research for EPRI.
If you are an EPRI PQ Knowledge (PS1D) funder and have not subscribed to this resource center, register today. For more information about subscribing to this site, please contact Bill Howe.
Again, Welcome to the PQ Online Resource Center!
Program 1 Research Portfolio
Electric utilities worldwide consistently report that power quality (PQ) is a fundamental component of the three key utility business performance metrics: system performance, economic performance, and customer satisfaction. By applying EPRI's extensive PQ expertise, the Power Quality research program may help to improve these three metrics, allowing PQ managers and transmission and distribution (T&D) asset utilization and system planning professionals to use PQ-related technology, knowledge, and expertise to help improve their organization's bottom-line performance.
PQView / PQWeb Users Group
The PQView® Users Group is intended to assist power quality engineers in managing and analyzing power quality data. The user group's purpose is to support and inform the PQView user and to provide a forum for communication and sharing of ideas among its members.
Supplemental Project Opportunities!
PQ Knowledge Development and Transfer (Formerly PS1D)
Management of power quality issues has never been an easy task, but it has grown even more difficult with deregulation, reregulation, increasingly scarce technical and strategic tools, and a conspicuous lack of unbiased resources for information, collaboration, advice, and problem solving. Moreover, with the ever-increasing use of sensitive digital and electronic equipment in today’s economy, end-use customers are not only demanding higher quality power, but also are calling upon utilities to help resolve PQ problems within customer facilities.
This supplemental project offers a number of benefits for members, including leveraging contributions by at least a 20-to-1 ratio, access to EPRI experts and industry peers, access to high-impact resources, such as documents covering a wide range of PQ topics, and access to MyPQ.epri.com, a comprehensive electronic PQ resource providing 24/7 access to more than 500 PQ case studies, PQ technical documents, PQ standards references, indexes, conference presentations, and a wealth of other resources.
PQView® Upgrade Project Opportunity
PQView® Upgrade project opportunity: Introduction and discussion of a new supplemental project opportunity for broadly upgrading PQView.
PQView® was initially developed over 15 years ago in collaboration with utilities. Since that time, PQView has become a leading industry tool for managing large databases of power system monitoring information and for visualizing power quality data. It is used by many utilities as the foundation for collecting information from a variety of different monitors, managing the database of disturbance and steady state data, reporting on performance, and providing alarms and notifications for problem conditions.
This research initiative focuses on development and implementation of an enhanced PQView database, modernizing PQView’s architecture, and improving PQView’s Graphical User Interface (GUI). Work undertaken in each phase will be scaled – with input and guidance from project funders – to reflect overall funding. Phase 1 of this effort will create PQView Explorer v1 and PQWeb Explorer v1 – usable software that will comprise and deploy enhanced PQView capabilities as they are created.
New User Registration
To access most MyPQ content, you need an EPRI.com account . Please contact Bill Howe (email firstname.lastname@example.org) if you are an EPRI PQ Knowledge (PS1D) funder and your need for “Funder Level” access is urgent.
Call of the Month for October 2013
Via EPRI’s PQ Knowledge (PQK) Power Quality Hotline, a PQK funder inquired about the consequences of using a Peterson Coil for MV system protection. The inquiry spawned a whole series of other questions:
- Who’s this guy Peterson anyway?
- What are the underlying operating principles?
- If you limit fault current, then how do you find the fault?
- How does this system compare to solidly grounded systems?
Can you teach an old dog new tricks?
EPRI Calls on Industry to Build a Better AC Ice Cube Relay
Modern industry requires a more robust alternative to the standard AC ice cube relay. If SEMI F47-compliant units are made available, many power quality-related shutdowns could be avoided and industrial plants could save from several hundred thousands to several millions of dollars each year.
EPRI is calling on the manufacturers of control components to develop a line of control relays with improved voltage-sag robustness.
More Supplemental Project Opportunities!
Transmission Power Quality/Distribution Power Quality III (TPQ/DPQIII) Project Opportunity
Introduction and discussion of a new supplemental project opportunity for benchmarking transmission and distribution power quality.
The information learned from this project opportunity may be used by a variety of utility functions. Management may use it to set performance goals and engineering for better understanding of requirements. Utilities may use the result of the benchmarking efforts to discuss expectations and economic impact of power quality levels.
The expected results may also provide a factual baseline for benchmarking of power delivery system performance required by regulatory bodies. It may help in understanding:
- Utility specific performance for transmission and distribution power quality and how these standards compare with a national baseline
- Power quality trends for transmission and distribution created by power electronics and emerging efficient technologies
- Power quality trends caused by increased distributed and renewable generation technologies
Utility Interest Group: Flicker Issues for Industrial Customers
This project will provide information on flicker guidelines, indices, and assessments for industrial customers. It will also provide a forum for the development of consistent methods of applying the latest flicker standards and of evaluating compliance with the standards.