2021 06 02_meeting

SOEP Coordination meeting

Date: June 2, 2021, 8:15am-9am Pacific Times

The purpose of this meeting is to coordinate the Modelica integration for SOEP.

Meeting information

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Agenda

Previous action items
Modelon
Stuart: FMI-QSS
Kyle, Michael: EnergyPlus-Modelica coupling.
Kyle, Michael: EnergyPlus I/O variables.
Michael, Kyle: Support for radiant systems.
Other items

Participants

Kyle Benne

Josh New

Baptiste Ravache

Stuart Mentzer

Hubertus Tummescheit

Michael Wetter

Minutes

Milestones

LBL AOP 9/30 (go/no-go): Release that can couple Modelica-based control to E+. OK to release in early 2021.

(https://github.com/lbl-srg/modelica-buildings/milestone/18)

LBL AOP 3/30: Implemented radiant slab coupling in Spawn.

LBL AOP 3/30: Release Buildings Library with radiant slab coupling.

LBL AOP 6/30 (go/no-go): Posted beta version of Spawn (jointly with NREL, Objexx and Modelon)

Modelon

Optimica license protection.

OS X and Linux builds.

Compiler integration

Kyle works on JModelica integration, and once this works, swaps it against OCT.

FMI-QSS

Stuart is working on analysis with Modelon.

Stuart got OCT update, updates status page on test repository. Works first on full review of all test models with new OCT, then goes back to benchmark. Then works on default settings for QSS and goes back to AC control models, then to SimpleHouse.

Stuart to work on a small example that illustrates problems with zero crossing for discussion with Christian. Need a deterministic contract to handle them robustly.

EnergyPlus-Modelica coupling

Binary code freeze by April 2.

New blocker came up: https://github.com/lbl-srg/modelica-buildings/issues/2512 This shows that end-to-end testing is needed across all idf files distributed with EnergyPlus.

Issues are at https://github.com/lbl-srg/modelica-buildings/issues?q=is%3Aissue+is%3Aopen+label%3Aspawn

Next, work on

Spawn FMUs are not yet self contained, https://github.com/lbl-srg/modelica-buildings/issues/2054

[For FY21, Q2] Kyle to fix schedule: https://github.com/lbl-srg/modelica-buildings/issues/2000

(Kyle either fixes it, or proposes new wording for https://lbl-srg.github.io/soep/softwareArchitecture.html#sending-input-to-energyplus)

[For FY21, Q2] Kyle to look into numerical instability (walls may be initialized to wrong temperature). See for example Experimental/EnergyPlus/Examples/VAVReheatRefBldgSmallOffice/FloorOpenLoop. The temperature in the attic should not raise in the first hour. (Pending since Nov. 2019)

Remove warnings issued by EnergyPlus, https://github.com/lbl-srg/modelica-buildings/issues/2220

Support negative start time in EnergyPlus, https://github.com/lbl-srg/modelica-buildings/issues/1938

LBL AOP 9/30 (go/no-go): Release that can couple Modelica-based control to E+. OK to release in early 2021.

Other items

None.

New action items