CIM Issues #5299
ACLineSegment updates for mutual coupling
The current mechanism for describing coupled lines (lines in sufficiently close proximity to each other to induce mutual impedances) does not support unbalanced modeling.
A physical modeling approach (leveraging WireAssembly and related classes) will allow accurate unbalanced mutual modeling to be done with the results stored in a phase impedance matrix described by the PerLengthPhaseImpedance class. Balanced modeling of mutual impedances can be derived from the phase impedance matrix.
To implement this approach, modeling needs to allow the identification of a group of line segments that are coupled. Two new classes are proposed that support such grouping: CoupledLineSegmentGroup and LineSegmentCoupling.
09/22/2022- WG approves and updates to the 301 are required. Recommend Tom McDermott, Kurt Hunter as reviewers.
13 June 2023, Oslo - Apply UML changes
Wires package updated with
Add class LineSegmentCoupling, a child of IdentifiedObject
Add class CoupledLineSegmentGroup, a child of IdentifiedObject
with no attributes
Add association LineSegmentCoupling.ACLineSegment
Add association LineSegmentCoupling.CoupledLineSegmentGroup
These changes are also applied in 452 SC profile where the following attributes are set to required
MutualCoupling class is set to deprecated in wires package and in 452 SC profile.