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CIM Issues #4922

Temperature dependent and most restrictive operational limit

Added by Herbert Falk over 2 years ago. Updated 10 months ago.

Status:
In Progress
Priority:
High
Author/Contact Info:
Kendall Demaree
Base Release:
61970cim14v15
Solution to be Applied To:
Solution Version:
Solution Applied By:
Completion Date:
CIM Keywords:
Breaking Change:
No
Breaking Change Description:
CIM Impacted Groups:
WG13
Requestor:
Standard(s):
Version:
Clause:
Sub-Clause:
Paragraph:
Table:
Originally Closed in Version:
Origination Date:
04/07/2011
Origination ID:
13_48
Originally Assigned To:

Description

Temperature dependent and most restrictive operational limits
The OperationaLimit on a line should be function or table lookup based on temerature. Also devices should be grouiped together such that the most restrictive device in series will be used for the effective limit. A definition of such grouping is needed.

Proposed Solution

Propose additional modeling associated to OperationalLimit and/or OperationalLimitSet to facilitate this. Also review ERCOT model for this as ERCOT added this functionality also.

Review ENTSO-E extensions that cover Network Codes. There are a few classes that extend the current Operational limit model to use curves that describe dependency on temperature, load, solar radiation,...

Decision

Discussed during the 01-Mar-2023 weekly UCT13 call.

Lars-Ola pointed out that there is a trade off between level-of-detail and ease-of-use. The use case must be discussed in greater detail. Note that this also ties into dynamic line ratings so that should be accounted for as part of the proposal.

Considerations:

- The original proposed solution did not cover needed modeling for dynamic line ratings. This must be added.
- Do the weather conditions need to be stored with the dynamics line rating?
- Do we need an information model that describes the dependency between the limit values of the equipment and the weather parameters (i.e. wind, temp, solar effect - irradiance, etc.)?

Would be good to come up with a weather dependent dynamic limit ratings use case for planning purpose. This is time based (or condition based) limit sets for planning purposes. However, we solve this needs to be determined.

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