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Product Abstract

Common Functions for DER Group Management, Second Edition

Product ID:3002005789
Date Published:25-Nov-2015
Pages:104
Sector Name:Power Delivery & Utilization - Distribution & Utilization
Document Type:Technical Results

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Abstract

Since 2012, the Electric Power Research Institute (EPRI) has facilitated a focus group of industry experts working to develop standard functions for the monitoring and management of groups of distributed energy resources. The activity is aimed at advancing industry efforts to bring inverter-connected distributed energy storage and generation into use as a grid resource. This report presents the work-in-process of the second phase of developments by this work group. It addresses DER management in aggregate groups, including group setup, status monitoring, and dispatch of real and reactive power. At the time of publication, the Phase 2 work is in process and expected to be completed in 2016. When completed, this body of work will provide the energy industry with a reference library of functions that can be used for integrating multiple levels of aggregation of DER, including integration with other utility applications. These functions can be mapped into any communication protocol, and such mappings have already been started in the International Electrotechnical Commission (IEC) Common Information Model (CIM) and National Rural Electric Cooperative Association’s MultiSpeak. This phase of development also tracked activity in the state of California to revise CA Rule 21, and features have been added to address those needs.

The electric power industry has taken previous steps to prepare for higher penetration of distributed energy resources (DER) by working collaboratively to develop smart inverter standards and field network protocols that may be used for monitoring and managing individual devices in the field. These prior standards provide very detailed and granular control as needed for directly interfacing to such complex devices. The methods presented in this document build upon this foundation to support the management of groups of DER as they are aggregated at multiple levels and presented as virtual resources in a useful and manageable way.

The ongoing focus group activity is being coordinated with the Department of Energy (DOE), through the DOE SunShot SEGIS-AC (Solar Energy Grid Integration Systems – Advanced Concepts) program, and with the National Institute of Standards and Technology, through the Smart Grid Interoperability Panel’s Distributed Renew­ables, Generators, and Storage Domain Expert Working Group. The initiative began with a face-to-face workshop held in Washington, DC in September 2012 and continues through a series of teleconferences and workshops. These meetings bring together a group of utility distribution management experts, distribution management system (DMS) software, and distributed energy storage and generation specialists to identify a list of practical, group-level interactions for DER.       

Program
2015 Program 174   Integration of Distributed Energy Resources
Keywords
  • Photovoltaics
  • Battery storage
  • Enterprise integration
  • Distributed energy resources
  • Distribution management system
  • DER management systems (DERMS)
  • DER group
Report
000000003002005789
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