2. Getting involved
3. Standards Committees
4. DKE

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

Procedure

VN

Overview

The generic requirements for intelligent power systems (hereafter referred to as smart grids for short) defined in IEC 62913 are needed to comply with Decision 2 of SG 3 taken by the SMB at its meeting in February 2010 (SMB/4204/DL, Decision 137/10), according to which there is a need to describe all functional and system requirements for all applications to smart grids. The IEC roadmap for smart grid standardization includes the statement that the "standardization process should identify a formal pathway between the application, as "demanded" by smart grid (stakeholders), and the standards themselves, that is, a "top-down" process," while noting that this has often not been implemented for a variety of reasons. As a result, some standards contain conflicting specifications. The purpose of the IEC systems approach is to ensure and improve interoperability between smart electricity supply systems. This approach is based on the business imperatives expressed by the market. The main purpose of collecting and sharing generic requirements for smart grids is to provide a basis for future standardization work, the result of which will be standards that ensure and facilitate the deployment of applications on smart grids. WG 6 has been established to capture smart grid requirements derived from market needs using a standardized approach based on use cases. Part 1 of IEC 62913 describes the application of the use case methodology specifically to the domain of smart grids; while the work results on IEC 62913-2 describe smart grid use cases and capture the associated requirements for smart grids. These requirements, expressed using the formal methodology, must then find their way into the work to be done by the other Technical Committees to ensure that technical standards are developed with the needs and priorities of the smart grid market in mind. This in turn will ensure that we achieve interoperability between smart grid systems sooner rather than later, thereby limiting overall costs. However, interoperability requires more than just adapted data models. Interoperability requires profiles, which in turn are closely linked to specific use cases and their associated requirements. These profiles and use cases are the basic inputs for certification (or conformance) testing that ultimately guarantee that interoperability is achieved. Within TC 8, work was done to update the existing IEC/PAS 62559 IntelliGrid Methodology for Developing Requirements for Energy Systems, define the processes, and organize a common use case management repository with the aim of collecting use cases within IEC on a common collaborative platform. As part of this work, the outline of a use case template, an actor list, and a requirements list were defined in Part 2 of IEC 62559. The generic use case is defined therein as follows: Use case for standardization that is widely accepted and usually collects and harmonizes different individual use cases without being based on a project or technology specific solution. WG 6 has been tasked to select a limited number of generic use cases for applications to smart grids using these elements of the use case methodology as inputs and publish them in IEC 62913. This work builds, namely within IEC where available, on existing use cases and is carried out in collaboration with the experts of the relevant TCs. IEC 62913 therefore provides generic use cases that summarize a comprehensive list of functional and non-functional requirements for applications to smart grids. The definitions of the roles and the actors involved are summarized in Part 1 of the IEC 62913 series of standards. This will provide a consistent and directly applicable framework for all electric utility system stakeholders and their smart grid project implementations. The scope of applications to smart grids has been broken down into different domains in order to better understand its complexity and to help WG 6 maintain a complete overview of smart grid market requirements. These domains have been defined as follows: 1) transmission network management; 2a) distribution network management; 2b) micro-grids; 3) smart substation automation (intelligent station automation); 4) distributed energy resources; 5) advanced (smart grid and) smart metering infrastructure; 6) smart home/commercial/industrial/DR customer energy management; 7) energy storage; 8) electricity transmission; 9) systems management ,10) large-scale generation; 11) market. The business analyses underlying the definition of the generic requirements for smart grids are first performed for the individual domains and then combined in order to take the interdependencies and interactions between the domains into consideration. IEC 62913 consists of the following parts: - Part 1: Specific application of the Use Case methodology for defining generic smart grid requirements according to the IEC systems approach; - Part 2: Generic smart grid requirements, which in turn consists of 5 parts related to the clusters that regroup multiple domains and further subdivides the scope of smart grids into categories: - Part 2 1: Grid related domains (DCT1, DCT2a, DCT2b); - Part 2 2: Market related domain (DCT11); - Part 2 3: Resources connected to the grid domains (DCT4, DCT6, DCT7, DCT10); - Part 2 4: Electric transportation related domain (DCT8); - Part 2 5: Support function related domain (DCT3, DCT5, DCT9). Zuständig ist das DKE/K 901 "System Komitee Smart Energy" ("System committee smart energy") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.

Responsible national committee

DKE/K 901 - System Komitee Smart Energy