v1.9.0

Release notes

Features

• Always update network with a reference terminal (#990)
• Sensistivity analysis: support of factor with function BUS_VOLTAGE and variable INJECTION_REACTIVE_POWER (#987)
• Support of VoltageRegulation extension for Battery (#1004)
• Sensistivity analysis: support of factor with function BUS_REACTIVE_POWER and variable BUS_TARGET_V (#992)
• Support of extension HVDCOperatorActivePowerRange as well as Pmax of hvdcLine in AC emulation (#1005)
• Fast restart when changing transformers tap position (#1008)
• Support HVDC AC emulation simulation in DC Load Flow (#1013)
• Bump to core 6.3.0 (#1000, #1012)

Fixes

• Fix ComponentResult distributed active power (#998)
• NR mismatch reporter: add unit in mismatches (#999)
• Fixed network slack bus selector multi-variant bug (#994)
• Fix restoreInitialTopology in security analysis with multiple synchronous components (#1003)

Quality

• Add unit test with VSC voltage control and targetP = 0 (#1002)

v1.8.1

Release notes

Fixes

• Honnor HVDCOperatorActivePowerRange as well as Pmax of hvdcLine in AC emulation (#1005)

v1.8.0

Release notes

Features

• Support paired dangling lines ids in state monitors (#974)
• Support of shunt compensator position action (#801)
• Configuration of voltage target priority (#955)
• Improve AC Load Flow reports (#977 #991)

Fixes

• Fix SVC slope not simulated (#976)
• Fix empty string parameter string list parsing (#980)
• Fix terminals connection action (#983)
• NaN bug in reactive power dispatching (#984)

v1.7.0

Release notes

Bump to powsybl-core 6.2.0 (#958, #970)

Features

• Consistency checks for input OLF parameters (#939)
• DC security analysis: remove call to sensitivity API (#927)
• Generator remote reactive power control on non impedant branches (#945)
• Transformer RatioTapChanger reactive power control (#907)
• Generator Reference Priorities (#899)
• Loss of a VSC converter station after contingency (#961)
• New SlackDistributionFailureBehavior DISTRIBUTE_ON_REFERENCE_GENERATOR (#959)
• Optionally disable voltage regulation of generators with targetP outside Pmin/Pmax (#964)
• Fast restart for secondary voltage control: targetV and participate (#966)
• Fast restart for transformer target voltage change (#967)
• Added support of action to reconnect branch at both side action (#943)

Fixes

• Fix sharing of reactive power for multiple generators (#941)
• Fix PerEquationTypeStoppingCriteria (#951)
• Fix OLF boolean parameters getters (#962)
• Bug fix in AC emulation: also consider P0 to define controller (#963)
• Fix OpenLoadFlowParameters equals and clone (#968)
• Fix acSolverType missing in OLF Specific Parameters (#969)
• Fix flow computation of HVDC connected at only one side (#965)

Quality

• Update README (#922)
• Add a developer in pom.xml (#942)
• Update GH actions versions (#960)

v1.6.0

Release notes

• Make some equation term methods public (#934)
• Fix connected side 2 notification (#935)
• Fix shunt b and g update notification (#933)
• Fix typo (#936)
• Fix contingency propagation (#937)
• Fix active and reactive terms (#938)

v1.5.0

Release notes

Bump to PowSyBl Core 6.1.0 (#905, #925)

Features

• Clean AC Equation System (#900)
• Use TwoSides everywhere (#906)
• Shared remote reactive power control for generators (#880)
• Add a name to permanent limit violation (#909)
• Improve performance of incremental outer loops (#895)
• Specified reactive power control to generator (#914)
• Clean security analysis contingency impact log (#916)
• Add check on generators new target v calculated by secondary voltage control (#902)
• Migrate to LoadFlowResult API v1.4 (#918)
• Open branch at only one side in security analysis (#889)
• Newton krylov solver (#911)
• Connectivity: change main component vertex during temporary changes (#917)
• Reports unrealistic bus voltages during Newton Raphson (#931)

Fixes

• Fix update reactive keys for voltage control (#904)
• Fix failed to distribute slack in unit tests (#903)
• Fix missing NR re-run in case of undistributed slack active power (#901)
• Fix SubstationAutomationSystems deserializer (#908)
• Fix generator type if reactive remote control disabled (#915)
• Fix NPE on VSC without a HVDC line (#921)
• Fixed reports formatting issues (#924)
• Fix OpenBranchSide2CurrentMagnitudeEquationTerm (#928)

Quality

• Ac solver refactoring (#910)
• Parameterized unit tests (#926)

v1.4.0

Release notes

Features

• Substation automation system (#811)
• Voltage angle limit support (#873)
• Zip and exponential load models (#846)
• Secondary voltage control, coupled version (#872)
• DC approximation type configuration (#878)
• Refactor propagated contingency (#888)
• Exclude generators below zero or negative minP from slack distribution (#868)
• Synthetic discarded transformer voltage control log (#866)
• Option to ignore active power limits in slack distribution on generators (#869)
• Parent 16: update liquibase maven plugin (#860)
• Convergence control parameters as olf parameters (#876)
• New way to per unit lines (#852)
• Added voltage magnitude and angle to SecurityAnalysis branch results extension (#875)
• Bump to core version 6.0.2 (#881, #897)
• Improve factors read performance (#891)
• Slack Distribution Failure behavior (#890)

Fixes

• Fix three windings transformer with disconnected leg monitoring (#855)
• Fix cache invalidation issue when updating network state (#867)
• Fix fast restart network update in case of multiple components (#870)
• Fix reporting of distributed slack active power (#871)
• Add missing parameters infos (#877)
• Fix PTC action support and support of RTC action (#862)
• Fix remote reactive power control: reactive limits and update generator's reactive power (#882)
• Make constructor public for OlfThreeWindingsTransformerResult like for OlfBranchResult instead of package private. (#884)
• Fix sensi on disconnected HVDC (#886)
• Fix missing voltage limit violations (#892)
• Fix SA modifying OLF parameters (#893)
• Fix AC SA results ignoring AcLoadFlow outerloop status (#894)
• Fix incremental outer loops (#879)
• Fix not same variable and equation issue (#625)

Quality

• Javadoc fix: Add literal annotation in author's email address (#887)

v1.3.0

Release notes

• Add parameter to set the min nominal voltage for target voltage check (#795)
• Fix zero impedance branch flows in presence of shunt compensators (#797)
• Network update: wrong load Q0 when loadPowerFactorConstant is true and P0 equals zero (#798)
• Exception: No more participating to slack distribution (#799)
• Fix power factor constant with conform loads (#800)
• Secondary voltage control: add voltage sensi epsilon parameter (#796)
• Bump to core 5.3.2 (#804)
• Clean indexed terms when removing an equation (#808)
• Fix already converged case in fast restart mode (#802)
• Fix switch update in fast mode (#803)
• LfLoad refactoring (#812)
• Fix updated Q limits in reactiveLimitsOuterLoop (#813)
• Fix generators update after forcing a bus to remain PV (#814)
• Fix calculated bus load targetQ when distributed slack on loads with constant power factor (#815)
• Fix contingency on phase shifter controlled branch causing exception (#817)
• Fixed PST Flow Regulation on non impedant branch causing exception (#816)
• Use DC context in DC sensi (#821)
• DC PST active power control (#770)
• Improve sensi replay results (#823)
• Refactor sensi test package (#827)
• Fix dcUseTransformerRatio not taken into account in DC sensitivity analysis (#824)
• Fix too large dense matrix allocation issue (#822)
• Clean/fix phase control parameter in DC computations (#833)
• Get slack bus from network in sensitivity analysis (#825)
• Fix branch state saving and restore (#826)
• Improve performance of reference flow calculation in a DC sensi analysis (#829)
• Fix NPE in remote reactive power control (#835)
• Disabled network refactoring (#839)
• Do not update state after UNSTABLE outer loop status (#834)
• Fix small reference flow values instead of strict zero (#828)
• Support of BusContingency (#711)
• BusResults after security analysis is not exhaustive (#603)
• Empty list instead of null for bbsIds (and make final). (#842)
• Implement sensi of a target voltage to a reactive power flow and current (#830)
• Fix voltage control hidden to disabled (#810)
• Support of BranchResult for dangling line (#844)
• Fix all voltage control outer loops (#840)
• Generator reactive power dispatch proportional to normalized power (#843)
• LF load refactoring (#845)
• Upgrade to PowSyBl core 6.0.0-RC1 (#850)
• Explicit outer loops configuration (#841)
• Use dense matrix factory everywhere in tests (#851)
• Full Sonar analysis (#847)
• Reduce the number of zero reactive key log error (#853)
• Bump to powsybl-parent 15 (#854)
• Add a IEEE 14 unit test (#857)
• Add log to reactive limit outer loop when limit has changed (#856)
• Fix invalid factors in specific contingency context (#837)
• Support of PhaseTapChangerTapPositionAction for 3wt (#849)
• Network update fix in case of fast restart (#861)
• Improve secondary voltage control outer loop (#838)
• Bump powsybl-core to 6.0.0 (#864)

Compatibility

• PowSyBl Open Load Flow now only supports Java 17 and higher (#820)

CI

• Add a new branch name pattern for full Sonar analyses (#819)

Utilities

• Add Maven Wrapper (#831)

v1.2.3

Release notes

Bump to powsybl-core 5.3.2 (#804)

Fixes

• Clean indexed terms when removing an equation (#808)
• Fix already converged case in fast restart mode (#802)
• Fix switch update in fast mode (#803)
• Fix updated Q limits in reactiveLimitsOuterLoop (#813)
• Fix generators update after forcing a bus to remain PV (#814)
• Fix calculated bus load targetQ when distributed slack on loads with constant power factor (#815)
• Fix contingency on phase shifter controlled branch causing exception (#817)
• Fix phase shifter flow control on non impedant branch causing exception (#816)

Quality

• LfLoad refactoring (#812)

v1.2.2

Release notes

Features

• Secondary voltage control: add voltage sensi epsilon parameter (#796)

Fixes

• Fix power factor constant with conform loads (#800)
• Exception: No more <elementType> participating to slack distribution (#799)
• Network update: wrong load Q0 when loadPowerFactorConstant is true and P0 equals zero (#798)
• Fix zero impedance branch flows in presence of shunt compensators (#797)