VHPready

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VHPready (abbreviation for Virtual Heat and Power Ready ) is an open industry standard for the control of decentralized power generation systems , consumers and energy storage devices via a central control center. The uniform use of this standard enables the flexible connection of decentralized energy systems to virtual power plants and smart grid applications.

VHPready was originally developed by Vattenfall on the basis of international communication standards and was initially used to network its own systems. At the beginning of 2014, Vattenfall handed over the standard with all rights to the industrial forum VHPready e. V., which was largely prepared by the Fraunhofer Institute for Open Communication Systems (FOKUS) and took over the further development and distribution as an international industrial standard.

background

In the course of the energy transition, decentralized power generation systems such as B. Wind turbines , photovoltaic systems , biogas systems , small hydropower plants and mini or micro block-type thermal power stations , as well as controllable consumers and energy storage systems are becoming increasingly important. One approach to integrate them into the energy supply and to use synergies is to interconnect these decentralized systems to form virtual power plants. These can help to intelligently orchestrate consumption and generation and to harmonize them, which should lead to better integration of renewable energies and decentralized systems, a reduction in the maximum load on the networks and cost advantages for those involved in the market. An intelligent power grid (see Smart Grid ) plays an essential role here. As an incentive for providing this so-called flexibility, e.g. B. serve different price mechanisms, some of which are already in use today (see control power ).

So far, the systems have been connected using manufacturer-specific information and communication standards using different data models . With the help of an open industry standard and certification of the decentralized systems, the process for connection and prequalification is to be simplified and shortened.

history

2011

  • Vattenfall is developing the standard on the basis of international communication standards, initially to network its own systems

2012

  • Vattenfall publishes version 3.0 of the VHPready specification

2013

  • Because of the interest in the specification, it was decided to develop a generally applicable, open industry standard from it.

2014

  • Establishment of the Industrieforum VHPready eV as a competition-neutral and cross-sector platform for the further development of the standard and the certification of standard-compliant system components
  • Vattenfall hands over the standard with all work results and rights to the industrial forum VHPready e. V.

2015

  • Publication of the white paper of the VHPready 4.0 specification prepared by the members
  • Founding of VHPready Services GmbH, which is responsible for the implementation and international dissemination of the standard

2017

Scope and certification

VHPready includes different requirements with regard to system configuration as well as necessary control and measuring elements. Supported system types range from power generation systems to energy storage systems and consumers. The certification is carried out by VHPready Services GmbH and accredited testing laboratories. After an application for the VHPready certificate has been received, test laboratories are commissioned to test the relevant systems on the basis of the technical requirements. The process is divided into two stages: first, the systems are checked against specifications using conformity tests. You start with the static check of the properties specified by the manufacturer. This is followed by the verification of the dynamic properties, i.e. H. Tests under controlled conditions. In the second stage, end-to-end tests are then carried out using reference systems. After a successful test and acceptance of the test report by VHPready Services GmbH, the systems receive a product-related VHPready certificate. Modified products require recertification.

Technical details

In order to receive the VHPready certificate, the systems must meet certain minimum requirements. These ensure that a technical connection to a virtual power plant runs smoothly. Among other things, they concern the connection protocols used, technical performance requirements, security of data transmission and types of commands to the systems. The focus is on data communication , remote monitoring and remote control of the systems.

The current version of the specification is VHPready 4.0. An extensive data point list forms the functional core of VHPready 4.0. It supports the integration of different energy systems in virtual power plants. The telecontrol protocol IEC 60870-5-104 or modeling according to IEC 61850-7-420 is used for this . In addition to a system park with a network of different energy systems, this data point list enables the integration of block-type thermal power stations (CHPs), wind power and solar systems, heat pumps, batteries, electrical heating, boiler and buffer storage. There are also data points for meters and external signaling contacts. The security of the data transmission is guaranteed by the construction of a virtual private network (VPN) based on OpenVPN with SSL / TLS connections (Secure Sockets Layer, Transport Layer Security).

An essential goal of VHPready is the definition of subsets ( subsets or profiles) of the standards used, so that only the profile has to be named during certification and project implementation. Project-specific agreements on the details of the standards are largely eliminated. All tests for certification to the VHPready standard follow internationally standardized methods and techniques as defined by ISO / IEC and ETSI .

Members of the industrial forum VHPready eV

47 member companies are currently participating in the initiative for the integration and standardization of decentralized energy systems. The members include manufacturers of system components, providers of software and IT services, network operators, test service providers and companies from research and development.

The members of the Industrieforum VHPready eV actively design all new areas of application for new use cases of the VHPready specifications. In working groups, the technical advancements of the industry standard are worked out, application scenarios are developed, testing and certification processes are modeled, and positions and strategies of the industry forum for public relations are designed. The new development status is available to the member companies ahead of time. This allows you to test VHPready communication in your products and in interaction with the systems of other member companies, for example in a Plugfest, before new applications are released.

Web links

Individual evidence

  1. ↑ First CHP with VHP-Ready 3.0 in operation. TGA specialist planner, 2012, accessed on September 12, 2018 .
  2. ↑ Fraunhofer Focus: Fraunhofer FOKUS and Vattenfall found the VHPready industrial forum. In: press release. Industrieforum VHPready eV, 2013, accessed on September 12, 2018 .
  3. ↑ Fraunhofer focus: VHPready industrial forum started at E-world. In: press release. February 12, 2014, accessed September 12, 2018 .
  4. ↑ VDE Study - Decentralized Energy Supply 2020. VDE, 2007, accessed on September 12, 2018 .
  5. ↑ Smart grids for the power supply of the future. Renewable Energy Agency, accessed September 27, 2014 .
  6. ↑ Dena: Interfaces and standards for the digitization of the energy transition. In: Study. Deutsche Energie-Agentur GmbH (dena), February 2018, accessed on September 12, 2018 .
  7. ^ Industry forum VHPready eV: VHPready - The Standard for Integration in Smart Grids. In: website. January 16, 2017, accessed September 12, 2018 .
  8. ↑ Vattenfall: Industry standard VHPready 4.0 now in use. VHPready e. V., 2012, accessed on September 12, 2018 .
  9. ↑ Milestone reached for the operation of virtual power plants. VHPready e. V., accessed on September 12, 2018 .
  10. ↑ List of member companies in the Industry Forum VHPready eV In: Website. VHPready, accessed September 12, 2018 .
  11. ^ Industrieforum VHPready eV: 1st Plugfest of the Industrieforum VHPready eV in Berlin. In: website. June 6, 2018, accessed September 12, 2018 .