IEEE 1547 (''Standard for Interconnecting Distributed Resources with Electric Power Systems'') is a standard of the

Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operation ...

meant to provide a set of criteria and requirements for the interconnection of

distributed generation Distributed generation, also distributed energy, on-site generation (OSG), or district/decentralized energy, is electrical generation and storage performed by a variety of small, grid-connected or distribution system-connected devices referred to ...

resources into the

power grid An electrical grid is an interconnected network for electricity delivery from producers to consumers. Electrical grids vary in size and can cover whole countries or continents. It consists of:Kaplan, S. M. (2009). Smart Grid. Electrical Power ...

Purpose

"This document provides a uniform standard for interconnection of distributed resources with EPSs lectric Power Systems It provides requirements relevant to the performance, operation, testing, safety, and maintenance of the interconnection."

With the increased adoption of distributed resources in the present and future, a set of standards regarding their usage in the grid becomes increasingly important for the overall reliability, safety, and cost. Furthermore, the lack of a concrete national standard was seen as a roadblock to the implementation of new distributed generation projects. The standard is intended to be universally adoptable, technology-neutral, and cover distributed resources as large 10 MVA.

Development

In early 1999, the IEEE approved the undertaking of P1547. With the support of the

United States Department of Energy The United States Department of Energy (DOE) is an executive department of the U.S. federal government that oversees U.S. national energy policy and manages the research and development of nuclear power and nuclear weapons in the United States ...

, the project was initiated on a fast-track basis, which would halve the usual development time. The draft standard was revised 10 times before P1547/Draft 11 was approved with a 91% vote in February 2003. It was then approved by the IEEE Standards Board on June 12, 2003, and received an

ANSI The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organi ...

designation on October 20, 2003.

Risk of System Disturbance

IEEE 1547-2003 had a tight underfrequency protection setting of 59.3 Hz which posed a risk for grid stability. In case of an underfrequency situation, Please compare with Chapter 6.3.5 and 6.4.1: "For instance, due to its significant penetration level, the effect of the distributed generation may no longer be neglected and appropriate technical requirements need to be defined." p. 94 e.g. after a major loss of generation, the situation may get worse when a multitude of

distributed energy resources Distributed generation, also distributed energy, on-site generation (OSG), or district/decentralized energy, is electrical generation and storage performed by a variety of small, grid-connected or distribution system-connected devices referred to ...

(DER) disconnect simultaneously. IEEE 1547-2003 demanded also an obligatory overfrequency disconnection at 60.5 Hz. With a rising share of distributed generation there is a possibility of triggering a non-linear

oscillator Oscillation is the repetitive or periodic variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. Familiar examples of oscillation include a swinging pendulum ...

in the multi GW range within the transmission grid. In Europe, this problem with similar standards has already been addressed by

ENTSO-E ENTSO-E, the European Network of Transmission System Operators, represents 39 electricity transmission system operators (TSOs) from 35 countries across Europe, thus extending beyond EU borders. ENTSO-E was established and given legal mandates b ...

.Letter, 18 July 2011
from Mr. Dobbeni, President of ENTSO-E to Mr Oettinger, European Commissioner for Energy IEEE 1547-2018 now allows operation from 56.5Hz to 62Hz with frequency droop included.

Energy Policy Act of 2005

"Interconnection services shall be offered based upon the standards developed by the Institute of Electrical and Electronics Engineers: IEEE Standard 1547 for Interconnecting Distributed Resources With Electric Power Systems, as they may be amended from time to time."

The

Energy Policy Act of 2005 The Energy Policy Act of 2005 () is a federal law signed by President George W. Bush on August 8, 2005, at Sandia National Laboratories in Albuquerque, New Mexico. The act, described by proponents as an attempt to combat growing energy probl ...

established IEEE 1547 as the national standard for the interconnection of distributed generation resources in the

United States of America The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territo ...

Related Standards

Currently, there are six complementary standards designed to expand upon or clarify the initial standard, two of which are published, and the other four still in the draft phase. * IEEE 1547.1, published in 2005 an
updated in May 2020
further describes the testing of the interconnection in order to determine whether or not it conforms to standards. * IEEE 1547.2, published in 2008, provides a technical background on the standard. * IEEE P1547.3, draft in progress, details cyber security guidelines. * IEEE 1547.4, published in 2011, is a guide for the design, operation, and integration of conforming systems. * IEEE 1547.6, published in 2011, describes practices for secondary network interconnections. * IEEE 1547.7, published in 2013, provides distribution impact studies for distributed resource interconnection. * IEEE P1547.9, draft in progress, details energy storage guidelines *

IEEE 1547-2018 The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its opera ...

, published in 2018, IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces. Revision to IEEE 1547-2003

References

External links

* http://grouper.ieee.org/groups/scc21/1547/1547_index.html (IEEE 1547 Homepage) {{DEFAULTSORT:Ieee 1547 IEEE standards Distributed generation