Dálkově řízené systémy

Oblast zaměření: Dálkově řízené systémy
Komise : IEC/TC 57 (Power systems management and associated information exchange)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 7.08.2018
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Scope of the full standard

The IEC 61968 standard, taken as a whole, defines interfaces for the major elements of an interface architecture for Distribution Management Systems (DMS). Part 1: Interface Architecture and General Recommendations, identifies and establishes requirements for standard interfaces based on an Interface Reference Model (IRM). Parts 3-9 of this standard define interfaces relevant to each of the major business functions described by the Interface Reference Model.

As used in IEC 61968, a DMS consists of various distributed application components for the utility to manage electrical distribution networks. These capabilities include monitoring and control of equipment for power delivery, management processes to ensure system reliability, voltage management, demand-side management, outage management, work management, automated mapping and facilities management.

This set of standards is limited to the definition of interfaces and is implementation independent.  They provide for interoperability among different computer systems, platforms, and languages.  Methods and technologies used to implement functionality conforming to these interfaces are considered outside of the scope of these standards; only the interface itself is specified in these standards.

Scope of this Part

The scope of this document is the description of a set of functions that are needed for enterprise integration of DERMS functions. These exchanges are most likely between a DERMS and a DMS. However, an enterprise integration standard leveraging IEC 61968-100:2013 for application integration, there are no technical limitation for systems with which a DERMS might exchange information. Also, it should be noted that a DERMS might communicate with individual DER using a variety of standards and protocols such as IEC 61850, IEEE 2030.5, Distribution Network Protocol (DNP), Sunspec Modbus, or perhaps Open Field Message Bus (OpenFMB). One role of the DERMS is to manage this disparity and complexity of communications on the behalf of the system operator. However, the communication to individual DER is out of scope of this standard. Readers should look to those standards for the particulars of communicating to individual DER.

The scope will be limited to the following use case categories:

DER group creation – a mechanism to manage DER in aggregate

DER group maintenance – a mechanism to add, remove, or modify the members and/or aggregated capabilities of a given group of DER

DER group deletion – removing an entire group

DER group status monitoring – a mechanism for quantifying or ascertaining the current capabilities and/or status of a group of DER

DER group forecast – a mechanism for predicting the capabilities and/or status of a group of DER for a given time period in the future

DER group dispatch – a mechanism for requesting that specified capabilities of a group of DER be dispatched to the grid

DER group voltage ramp rate control – a mechanism for requesting that a DER group following a ramp rate curve

DER group connect/disconnect – a mechanism to request that DER either isolate themselves, or reconnect to the grid as needed

To support use cases in the preceding categories, this standard specifies the following normative XSDs (profiles):

Table 1 IEC 61968-5 Profiles

DERGroups.xsd

DERGroupQueries.xsd

DERGroupStatuses.xsd

DER GroupStatusQueries.xsd

DERGroupForecasts.xsd

DERGroupForecastQueries.xsd

DERGroupDispatches.xsd

DERGroupQueries.xsd

 

Additionally, this specification uses existing IEC 61968-9:2013 Application integration at electric utilities - System interfaces for distribution management - Part 9: Interfaces for meter reading and control profiles for passing event information and for the DER group connect/disconnect use cases. There are no extensions made to these profiles, only the data specific to these use cases is passed.

Table 2 IEC 61968-9 Profiles

EndDeviceControls.xsd

EndDeviceEvents.xsd

 

 

The profiles in the left column of Table 1 are the "base" DER profiles and appear in the Payload section of IEC 61968-100 compliant messages. Those in the right column of Table 1 are the "query" profiles that appear in the Request section of IEC 61968-100 compliant messages and are used to specify the query parameters when using the "get" CIM verb.

In a departure from prior IEC 61968 standards, this standard supports specification of both a "constrained" and an "unconstrained" version of each of the "base" profiles. The "constrained" versions have a greater number of non-optional XSD elements and are intended for use with the "create" and "created" CIM verbs. The "unconstrained" versions have all or almost all of the CIM elements defined as optional, which is required to support operations involving the "change", "changed", "delete", "deleted" and "get" CIM verbs. 

Please refer to Annex A for the normative constrained and unconstrained versions of each of the IEC61968-5 "base" XSDs as well as the normative IEC 61968-5 "query" XSDs.

Please refer to Annex B for informative high-level overview diagrams of each of the IEC 61968-5 constrained "base" and "query" XSDs.

This part of IEC 61968 contains the clauses listed in the table below.

Document overview for IEC 61968 – 5

Clause

Title

Purpose

 

Scope

The scope and purpose of the document are described. 

 

References (Normative and Informative)

Documents that contain provisions which, through reference in this text, constitute provisions of this International Standard.

 

Terms, definitions, and abbreviations

Establish the common terms used in this specification.

 

Document Conventions

Message types related to the exchange of information for documents related to maintenance and construction.

 

DER Enterprise Integration Use Cases

The specific requirements for and details of the message exchanges based on the use cases. Description of general approach to the DER enterprise integration message type terms and the static information.

Annex B

XSDs for DER Enterprise Integration Profiles

Normative XSDs for DER Enterprise Integration messages.