Tuesday, May 14, 2013

English Version of Vattenfall’s “VHP READY – Virtual Heat & Power Ready” available

Vattenfall Europe Wärme AG (Berlin, Germany) has published the famous specification “VHP READY” for information exchange in virtual power plants based on IEC 60870-5-104 respectively IEC 61850-7-420.

In order to integrate renewable energies into the power supply system successfully and economically, ways must be found to store and control them. The Virtual Power Plant, which stores energy in the form of heat, is a promising approach to solving this problem. With this technology, modern heating systems can also help to integrate renewable energies into the power supply cost-efficiently and accelerate the “Energy Transition”.

Data transmitted between a plant and the central control system via IP networks are encrypted either according to the IEC 60870-5-104 standard or the IEC 61850 series of standards (IEC 61850-7-420 in particular). Time synchronization is via SNTP/NTP. The following protocols are used for communication:

  • either IEC 60870-5-104 or IEC 61850 / 61850-7-420
  • TCP/IP

Download the specification 3.0 in English [pdf]
Download the specification 3.0 in German [pdf]

The approach used in the specification is exactly what needs to be done for many other applications domains: define the profile to be implemented in such a detail that no or just very few options are left!!

The specification needs some more details to be published: the complete details of the information model as an SCL file. Currently the models are partly specified in SCL … the LNs and DOs are just listed in a table. The next version will have more details. And it is very likely that other resources like PV … will be included in version 4 as well.

Congratulation to Vattenfall for this promising approach!

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