Hi everybody,

Our next TSC meeting will be on September the 15th, 13h30, on Teams: Cliquez ici pour participer à la réunion

For this public meeting, it would be great if we follow these items:

Next release is for today. This release of powsybl-core 4.10.0 contains:

-          [IIDM] limit getters return optionals. It is a breaking change.

-          [IIDM] the SLD extensions are moved to powsybl-core.

-          [IIDM] parameters are moved to commons.

-          [IIDM] allow to serialize false as redundancy.

-          [Modification] create bay feeder and create branch feeders. Add utility methods to retrieve the connectable order positions.

-          [Modification] transform a tee point into a switching voltage level.

-          [Modification] renaming attach to createLineOnLine and connectVoltageLevelOnLine.

-          [Conversion] importer and exporter refactoring.

-          [CGMES] many improvements, see release notes Releases · powsybl/powsybl-core (github.com)

-          [PowerFactory] improvements, see release notes Releases · powsybl/powsybl-core (github.com)

-          [Short-circuit] clean and refactoring.

-          [Security analysis] a first beta version of the security analysis API with remedial action + switch action + line connection action and phase tap changer tap position action.

-          [Sensitivity analysis] add contingency status in the result.

-          [Sensitivity analysis] support of three windings transformer as functions and variable.

-          + quality

Release train 1.3.0, based on powsybl-core 4.10.0

-          OLF, SLD, NAD, Dynawo, balances ajustement and entsoe expected next week, release train expected next week too.

Other repositories:

-          Florian: single line diagram and network area diagram.

-          Sylvain: pypowsybl.

-          OLF:

Support of shunt compensator G

Introduce plausible target voltage parameters

New GraphConnectivity API

Support of dangling line as function reference in sensitivity analysis

[Excepted] Support of switch contingency in sensitivity analysis.

[WIP] Work on generators connected to the same bus but controlling two different buses -> change the exception by a warning first.

-          powsybl/powsybl-starter (github.com)

-          powsybl/powsybl-benchmark (github.com)

-          IIDM C++, no release for the moment, still supporting until IIDM 1.5.0, WIP.

-          WIP: non regression testing

-          ENTSOE: flow decomposition following ACER methodology.

-          Dynawo: redesign.

Roadmap:

-          IIDM: Sets of operational limits. We found limitations in using private extension currentLimitsPerSeason and properties.

-          IIDM: modeling of protections.

-          Time series : benchmarks on time scale DB ;

-          Network modifications: creation of voltage level from scratch.

-          Increasing the shortcircuits API: REX after models integration and work around parameters

-          TODO: fusion of balances-ajustement and powsybl-enstoe?

-          TODO: we are late about documentation.

-          Multi component results for security analysis API.

-          The support of EMF in pypowsybl

-          Other subjects?

Thanks for joining the TSC. Remember that meetings are scheduled here:

powsybl-tsc@... | Calendar

See you soon !

Anne

Hi everybody,

I hope you are all fine and that you envoy your vacation. I have to cancel the TSC meeting because many committers are out of the office today.

In order to prepare the back-to-work, just some relevant information :

-          Next release of powsybl-core will be on September the 14^th. The release train should follow. We already have an alpha-1 release, but a release candidate will be published one week before.

-          In order to be ready, there are some pending PRs. If I miss some important features or bug fixes, just tell me.

In the Pull requests · powsybl/powsybl-core (github.com) of powsybl-core, the next-release PRs to be finished, reviewed and merged are :

-          There is an issue with the CGMES import because SequenceNumber is optional but strongly recommended in Europe. So we have decided to rely on it, but it leads to issues for American CGMES files. Miora has started to try to find a solution that preserves performance : [WIP] SequenceNumber can be optional in CGMES import by miovd · Pull Request #2241 · powsybl/powsybl-core (github.com) @Luma if you can help Miora finding a solution, it could be nice.

-          I have opened a PR to fix the BUS_VOLTAGE sensitivity factor in order to stay in bus/breaker view Fix sensitivity factor model reader for BUS_VOLTAGE factor by annetill · Pull Request #2240 · powsybl/powsybl-core (github.com) @Sylvain if you have time to review this before your vacation, it could be helpful.

-          Add convenient methods to retrieve bus-breaker buses from bus-branch bus ID by miovd · Pull Request #2239 · powsybl/powsybl-core (github.com) I think it is a very useful feature, I hope it will be ready for next release. Unit testing is low for the moment.

-          We have decided to rename the topology network modifications AttachNewLineOnLine and AttachVoltageLevelOnLine and to increase documentation (Rename Topology network hypotheses with Connect instead of Attach by miovd · Pull Request #2238 · powsybl/powsybl-core (github.com)). There are some impact on a pypowsybl PR that interfaces these methods and impacts on two PRs that codes the reverse changes (PR 2230 and PR 2228). So we have to agree on names and merge it as soon as possible.

-          Geoffroy has open a PR for operations on matrix Improve dense matrix multiplication and addition performance by geofjamg · Pull Request #2236 · powsybl/powsybl-core (github.com) : @Geoffroy : just tell me if you need help and if you need this PR for the next release.

-          Sylvain has found an issue on XML serialization of BranchObservability. @Miora : waiting for your review and merge.

-          There are two PRs for reverse changes of attach new line on line and attach voltage level on line (PR 2230 and PR 2228), review of Geoffroy expected and be careful of the renaming PR explained above. Note that Florian is out of the office until September the 7^th.

-          There are two PRs for PowerFactory importer but there are draft PRs. @Luma : do you need these PRs to be merged for next release ?

-          First step towards reproducible itools-packager builds: setTime in the zip by jonenst · Pull Request #2220 · powsybl/powsybl-core (github.com) @Jon : there is no reviewer for your PR on itools. Do you want this PR for next release ?

-          Miora has opened a PR to introduce builders for network modifications (Proposition for network modification builder by miovd · Pull Request #2218 · powsybl/powsybl-core (github.com)) : good idea. Not urgent for the next release and unit tests needed.

-          Luma has opened a PR to be able to import a CGMES file with all profiles in a single XML file (Allow boundaries to be assembled with other network data in the same instance file by zamarrenolm · Pull Request #2216 · powsybl/powsybl-core (github.com)). @Miora : we are waitning for your review and this PR must be in the next release.

-          This PR (Network modification: create feeder bay by colinepiloquet · Pull Request #2214 · powsybl/powsybl-core (github.com)) that creates a bay feeder for any injection must be available for next release. @Coline : the Javadoc is too poor for the moment, especially for utility functions. And Geoffroy has made a comment.

-          Create utility class for compareXml/compareTxt for refactoring purposes by sfid98 · Pull Request #2209 · powsybl/powsybl-core (github.com) is almost ready to be merged. I just have to check the copyright with Lucian before.

-          Reporter new API : what is the status of this work ?

-          Sensitivity analysis: add contingency status in the results by annetill · Pull Request #2186 · powsybl/powsybl-core (github.com) @Geoffroy : I need you review on that PR, whan you find some time… thanks !

Anything else ? I have planned to write an e-mail with my feedback on the security analysis with actions after a draft support on the OpenLoadFlow. @Etienne : if my returns are relevant, it must be included for the next release to minimize breaking changes.

Thanks everybody, just reach me if you need !

Anne

Hi everybody,

Our next TSC meeting will be on June the 30th, 13h30, on Teams: Cliquez ici pour participer à la réunion

For this public meeting, it would be great if we follow these items:

Next release will be on the end of July or on the beginning of September. This release of powsybl-core already contains:

-          IIDM: limit getters return optionals. It is a breaking change.

-          PowerFactory importer improvements.

-          Short-circuit: clean and refactoring.

-          [Expected] In the sensitivity analysis API, the results give a list of contingencies. This is going to change for a list of ContingencyStatus, that gives the status, for each contingency, of the computation (FAILED, CONVERGED, NO_IMPACT).

-          [Expected] A first version of the security analysis API with remedial action: simple and non-exhaustive in order to start the POC on open-loadflow implementation.

-          [WIP] Sets of operational limits: postponed. We are going to find a way to use the private extension currentLimitsPerSeason and properties.

Release train 1.2.1 (Release v1.2.1 · powsybl/powsybl-dependencies (github.com)), based on powsybl-core 4.9.1 (Release v4.9.1 · powsybl/powsybl-core (github.com)):

-          Note that a patch release of powsybl-core has been published : this release introduces a configuration parameter for CGMES import, which allows the source for IIDM identifiers to be set to rdf:id instead or mRIDs.

-          Please look at the release notes for more details about this release train.

Other repositories:

-          Florian: single line diagram and network area diagram.

-          Sylvain: pypowsybl.

-          OLF:

Support of ThreeWindingsTransformer contingency for sensitivity and security analysis.

[WIP] Support of shunt conductance.

[Excepted] New incremental transformer voltage control outer loop.

[WIP] Support of contingency propagation for sensitivity analysis, make it optional.

[WIP] Work on generators connected to the same bus but controlling two different buses -> change the exception by a warning first.

-          powsybl/powsybl-starter (github.com)

-          powsybl/powsybl-benchmark (github.com)

-          IIDM C++, no release for the moment, still supporting until IIDM 1.5.0, WIP.

-          WIP: non regression testing

Roadmap:

-          Integration of Dynawo : redesign for next release, then work by Dynawo team ;

-          Time series : benchmarks on time scale DB ;

-          Network modifications improvement -> we need to write issues in order to have a collaborative organization on that topic ;

-          Increasing the shortcircuits API: REX after models integration and work around parameters

-          TODO: fusion of balances-ajustement and powsybl-enstoe?

-          TODO: we are late about documentation.

-          Multi component results for security analysis API.

-          The support of EMF in pypowsybl

-          Discussion about fictitious switch in CGMES

-          Other subjects?

Thanks for joining the TSC. Remember that meetings are scheduled here:

powsybl-tsc@... | Calendar

See you soon !

Anne

Hi everybody,

Our next TSC meeting will be on June the 2^nd, 13h30, on Teams: Cliquez ici pour participer à la réunion

For this public meeting, it would be great if we follow these items:

Release candidate of powsybl-core available on Friday Release v4.9.0 (expected: 2022-06-15) · powsybl/powsybl-core (github.com), with as major features:

-          CGMES 2.4.15: fixes and improvements after a lot of tests performing for full export validation on real networks.

-          CGMES 3.0: improvements, still a beta feature. Do not hesitate to test this feature and provide feed-back.

-          Configuration: add methods to get the specific parameters of a sensitivity or security analysis.

-          Configuration: add import/export parameter possible values.

-          IIDM: fictitious injections.

-          Modifications: fix add voltage level on a line.

-          Power Factory importer.

-          PSSE importer.

-          Triple store: remove Jena implementation.

-          Many quality commits.

-          Expected: increase of short-circuit API to support elementary computations.

-          Excepted: IIDM converter API merged with IIDM network API.

Next release will be on April the 23^rd.

-          EMF based on the destructive merge and not on the merging view?

-          Operational limit set support.

-          Support of protections and automatons in IIDM network.

-          On-going work abound a new security analysis with actions (Security analysis with remedial actions · Issue #2015 · powsybl/powsybl-core (github.com)) + a WIP PR [WIP] add remedial actions for security analysis by EtienneLt · Pull Request #2095 · powsybl/powsybl-core (github.com)

Other repositories:

-          Florian: single line diagram and network area diagram.

-          Sylvain: pypowsybl.

-          OLF:

Support of all type of contingencies for AC and DC sensitivity analysis and security analysis.

New incremental transformer voltage control outer loop.

-          powsybl/powsybl-starter (github.com)

-          powsybl/powsybl-benchmark (github.com)

-          IIDM C++, no release for the moment, still supporting until IIDM 1.5.0, WIP.

-          WIP: update of powsybl-tutorials

-          WIP: non regression testing

Roadmap:

-          Integration of Dynawo : redesign for next release, then work by Dynawo team ;

-          Time series : benchmarks on time scale DB ;

-          Network modifications improvement -> we need to write issues in order to have a collaborative organization on that topic ;

-          New security analysis API with actions (Security analysis with remedial actions · Issue #2015 · powsybl/powsybl-core (github.com)).

-          Increasing the shortcircuits API: REX after models integration and work around parameters

-          TODO: fusion of balances-ajustement and powsybl-enstoe?

-          TODO: we are late about documentation.

-          Multi component results for security analysis API.

-          The support of EMF in pypowsybl

-          Discussion about fictitious switch in CGMES

Thanks for joining the TSC. Remember that meetings are scheduled here:

powsybl-tsc@... | Calendar

See you soon !

Anne