IEC 61850 User Feedback Task Force

Use cases detailled in the attached presentation

There are controls between IEDs for automatic control functions, for example:

• 90-6 : The IED Controller performing the AATS (Automatic transfer between two source) needs to control XCBRs in other IEDs
• 7-4 : The IED Controller performing ARCO (Reactive power control) needs to control XSWIs in another IED
• 7-4 : The IED Controller performing ATCC (Automatic tap changer controller) needs to control YLTC in another IED

We need to be able to represent controls in SCL, to be able to:

• Specify controls that an IED (performing automatic control functions) needs to perform for its logic
• Configure such controls of an IED, with a top/down approach, in the SCT, during the configuration process. Usefull also during the maintenance of the substation
• Document the data flows between IEDs, including the controls
• Document the binding of the controls to the internal addresses of the IED