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Releases: powsybl/powsybl-open-loadflow

v1.2.1

07 Jun 18:48

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Release notes

  • Add parameter to set the min nominal voltage for target voltage check (#795)

v1.2.0

06 Jun 17:15

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Release notes

  • Upgrade to PowSyBl Core 5.3.0 (#793)

Features

  • Basic implementation of asymmetric AC load flow (#703)
  • Increase default value for max realistic voltage magnitude (#769)

Fixes

  • Improve propagating by dealing with internal connections (#774)
  • Fix infinity voltage shift in secondary voltage control outer loop (#782)
  • Fix update of voltage controls after bus disabling (#787)
  • Fix slackBusesIds parameter type (#786)
  • Fix isHidden() method and introduce isDisabledAndAlsoAllItsDependentVoltageControls() method (#784)
  • Fix voltage control equation system updater: only main voltage control (#785)
  • Fix update voltage control merge status (#783)
  • Fix remove equation (#779)
  • Fix pre contingency monitored branch empty in DC Security analysis. (#776)
  • Fix disabled voltage control equations (#772)
  • Fix no impact load contingency when simulated with a switch contingency (#768)

Refactoring

  • Refactor outer loop (#789)
  • Refactor equation derivative (#746)
  • Rename LfAggregatedLoads to LfLoad (#777)
  • Replace dc boolean by an enum (#773)

Quality

  • Add unit test for limit violation detection (#792)
  • Add countries to balance unit test (#791)
  • Test Metrix for violations in Current, Voltage, Active and Apparent Power (#650)

v1.1.1

17 Apr 10:38

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Release notes

  • Upgrade to PowSyBl Core 5.2.1 (#771)
  • Fix no impact load contingency when simulated with a switch contingency (#768)

v1.1.0

04 Apr 08:37

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Release notes

Features

Common

  • Improve equations testing (#720)
  • Newton Raphson new stopping criteria (#699)
  • Improve GraphViz voltage control representation (#734)
  • Network listener tracer (#733)
  • Incremental phase shifter outer loop (#722)
  • Log all parameters formatted as a table (#749)
  • New parameter to always update iIDM network even in case of non-convergence (#755)
  • Split NR and outer loops max iterations (#730)
  • Add most meshed slack bus max nominal voltage percentile parameter (#761)
  • Country filter for slack bus selection (#721)

Load flow fast restart for AI

  • Fast switch position modification (#705)

Security analysis

  • Use reader/writer API instead of the result object based one (#719)
  • Partial support of GeneratorAction (#704)
  • Support of static var compensator contingency (#748)
  • Partial support of HvdcAction (#744)
  • Support of busbar section contingency (#667)

Sensitivity analysis

  • Support of static var compensator contingency (#748)
  • Sensitivity values filtering (#757)
  • Support of busbar section contingency (#667)

Refactoring

  • Refactor PI model array (#712)
  • Remove updateAllowedDirection method duplication (#723)
  • Refactor voltage controls (#735)
  • Angle in degree in LfBus (#739)
  • Refactor parameters (#750)
  • Refactor voltage control equations (#751)
  • Use SensitivityFunctionType::getSide and SensitivityVariableType::getSide (#752)
  • Avoid useless peruniting/de-peruniting (#760)
  • Various performance improvements (#745)

Fixes

  • Fix zero impedance subgraph and refactor voltage controls (#718)
  • Remove AssertionError (#716)
  • Fix ac and outerloop package design (#729)
  • Fix sensitivity calculation (#731)
  • Fix missing DC context close (#732)
  • Fix breakers in PropagatedContingency list creation (#726)
  • Fix hvdc converter stations update for fast restart (#736)
  • Fix hvdc line open at one side (#738)
  • Fix non impedant phase shifter with active power flow control activated (#641)
  • Fix (or simplify) load action support (#741)
  • Fix secondary voltage control when branch disconnected at one side (#747)
  • Shunt voltage control: fixes after testing on real cases (#753)
  • Fix contingency on line disconnected at one side (#756)
  • ReactiveLimitsMaxPqPvSwitch parameter name lowerCamelCase (#758)
  • Only use branches connected at both sides in most meshed slack bus selection (#762)
  • Add limit name to violation (#737)

v1.0.1

13 Feb 09:08

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Release notes

  • Fix weak refs with network store IIDM (#727)
  • Change default value for max Pq Pv switch and add a parameter (#728)
  • Fix i2 derivative to a1 (#724)

v1.0.0

31 Jan 10:57

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Release notes

We are happy to release the 1.0.0 version! 🚀

Features

  • Bump powsybl-core to 5.1.0 (#670, #714)
    • Populate ConnectivityResult in SA post contingency results (#701)
    • Support of new BalanceType PROPORTIONAL_TO_GENERATION_PARTICIPATION_FACTOR and PROPORTIONAL_TO_GENERATION_REMAINING_MARGIN (#702)
    • Support NaN droop for slack distribution (#700)

LoadFlow

  • Remove add ratio to lines with different nominal voltage parameter (#658)
  • Low impedance threshold into OLF parameters (#656)
  • Fast restart from previous LF for AI use cases with fast generator targetV modification (#635)
  • Newton-Raphson state vector scaling (#669)
  • Fast restart: support of shunt section modification (#698)
  • Specific parameters description (#689)
  • Add unrealistics voltages trace logs (#665)
  • Add target dead band check in transformer voltage control outerloop (AFTER_GENERATOR_VOLTAGE_CONTROL) (#668)
  • SVC with stand by automaton (#636)
  • Multiple slack buses support (#679)
  • GraphViz export for identifying the spanning tree and the controlled buses (#706)
    screenshot
  • Shunt incremental voltage control (#692)
  • Secondary voltage control simulation (#695)

Security analysis

  • Adds DcLoadFlowContext (#647)
  • Support of operator strategies in DC security analysis (#662)
  • Support of LoadAction in AC and DC security analysis (#660)

Sensitivity analysis

  • Get RHS from equation (#673)
  • Support of three windings transformers as variable or function in sensitivity analysis (#654)

Refactoring

  • Refactor security analysis network loading (#659)
  • Refactor equation systems creation (#684)
  • Refactor PV -> PQ switch counter (#687)
  • Refactor default outer loop config (#708)
  • Transformer voltage control refactoring (#709)
  • Simplify sensitivity calculation on transformer voltage control incremental outer loop (#696)
  • Add AbstractElementEquationTerm (#686)
  • Move bus getters to Networks utility class (#678)
  • Update deprecated API usage (#697)
  • Automatic indexing of equation terms (#672)
  • Use LfNetworkParameters everywhere to simplify code (#682)
  • Zero impedance branch management refactoring (#666)
  • DcValueVoltageInitializer fails in presence of resistive only branches (#683)
  • Add network update state parameters (#681)

Fixes

  • Fix log: generator with inconsistent target (#661)
  • Fix DcEquationSystem with disabled non impedant branch (#663)
  • Fix calculation status report severity (#677)
  • Fix log message with voltage controllers (#694)
  • Fix incremental transformer voltage control loop (#693)
  • Fix deprecated API usage (#707)
  • Fix shunt compensator disabling in DC security analysis (#710)
  • Fix variable name (#713)

v0.24.2

10 Jan 09:51

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Release notes

  • Introduce hvdc state save and restore for AC emulation after contingency (#688)

v0.24.1

19 Dec 08:55

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Release notes

  • AC sensitivity analysis: add GLSK restoration after loss of connectivity (#664)

v0.24.0

18 Nov 08:30

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Release notes

  • Zero impedance line open at one side NPE (#606)
  • AC sensitivity analysis: fix contingency has no impact (#607)
  • Update README.md following 0.23.1 release (#609)
  • DC sensitivity analysis refactoring (#608)
  • Miss contingency status in DC sensitivity analysis (#610)
  • Upgrade to PowSyBl parent 9 (#612)
  • Connectivity: compute edges/vertices moves from/to main component (#611)
  • Fix bug with optional targetDeadBand (#613)
  • Connectivity: define main component with given vertex (#617)
  • Simplify network parameters creation (#616)
  • Refactor everything with new connectivity (#614)
  • Clean invalid components logging (#619)
  • Fix impedance rescaling (#620)
  • Improvements after IOPs (#621)
  • Remove useless reset of variant ID, fixing exception when trying to access an uninitialized variant id from a child thread (#623)
  • Clean LfGenerator (#626)
  • Fix line open at only one side in PropagatedContingency (#627)
  • Clean branch limits violation (#628)
  • First support of AC security analysis with operator strategies (#590)
  • Try to fix AC sensitivity for no impact contingency after normal contingency (#631)
  • Use second selector level as fallback selector in NameSlackBusSelector (#632)
  • Fix reactive limits outer loop with remote voltage control (70d6c2d)
  • Fix network variant removal issue (#637)
  • Add new post-contingency status for security analysis and update to 5.0.0-RC1 (#638)
  • Fix breaking connectivity elements detection (#639)
  • Rework DC security analysis structure and fix StateMonitor (#643)
  • Revert starting generator fix (#644)
  • Fix loss factor. (#646)
  • added test for lines with different nominal voltages at both ends (#648)
  • Operator strategy simulation fixes (#633)
  • Sensitivity analysis: clean predefined results (#618)
  • Simplify variable access from equation term (#649)
  • Add range modes MIN_MAX, MAX and TARGET_P to check reactive capability curves (#653)
  • Upgrade to PowSyBl Core 5.0.0 (#655)

v0.23.2

05 Oct 15:02

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Release notes

  • Miss contingency status in DC sensitivity analysis (#610)
  • Bump powsybl-core to 4.10.1