Friday, July 25, 2014

Power Utility Automation Or Power Automation?

The title of IEC 61850 is “Communication networks and systems for power utility automation”. The restriction to power utility is an artificial one required by the standardization organization – it is not set by the industry.

In fact the scope of the IEC 61850 series is: “Communication networks and systems for power automation”.

Wherever power is generated, transported, distributed, and used, IEC 61850 provides the needed tools to provide a standardized interface for information, information engineering, and information exchange. There is no difference between a 3-phase AC system in a distribution system inside an Industrial Facility or outside in an utility grid. I guess you agree, that voltage phase A is voltage phase A.

All crucial information models for electrical systems are defined in IEC 61850-7-4 (core), IEC 61850-7-410 (hydro), IEC 61850-7-420 (DER), IEC 61850-90-7 (inverters), IEC 61850-90-17 (power quality), … It would be in the interest of keeping the reliability of power delivery high, to use ONE standard for all power related applications (in public utilities and in any factory or other plant or site).

There seem some people to apply the “fieldbus approach” … publishing new standards for power systems inside Industrial Facilities AND for an interface between the two domains (between Industrial Facilities and Power Utilities). Fortunately the power does not care if it is flowing inside or outside an Industrial Facility. Why not just use ONE standard (IEC 61850) for applications inside Industrial Facilities, inside Power Utilities, and between the both domains.

The IEC TC 65 has published a Committee Draft to open the door for a new standard:

IEC 65/555/CD: IEC/TS 62872 Ed. 1.0:
System interface between Industrial Facilities and the Smart Grid

Click HERE for a brief project description.
Contact your National Committee for a copy.

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