Version 4.0.0 is not backward compatible to +previous versions. A tested conversion script is provided to +transform models and libraries of previous versions 3.x.y to the +new version. Short Overview:
+MAJOR.MINOR.BUGFIX (see Version
+Management for details) and was decoupled from the version of
+the utilized version of the Modelica language standard.The exact difference between package Modelica version 4.0.0 and +version 3.2.3 is summarized in a +comparison table.
+The following Modelica +packages have been tested that they work together +with this release of package Modelica (alphabetical list). Hereby +simulation results of the listed packages have been produced with +package Modelica version 3.2.3 and compared with the simulation +results produced with version 4.0.0 Beta.1. The tests have been +performed with Dymola 2020/2020x:
+| Library | +Version | +Library provider | +
|---|---|---|
| Buildings | +> 6.0.0 | +LBNL | +
| Clara | +1.5.0 | +XRG Simulation GmbH and TLK-Thermo GmbH | +
| ClaraPlus | +1.3.0 | +XRG Simulation GmbH and TLK-Thermo GmbH | +
| DriveControl | +4.0.0 | +Anton Haumer | +
| EDrives | +1.0.1 | +Anton Haumer and Christian Kral | +
| ElectricalMachines | +0.9.1 | +Anton Haumer | +
| ElectroMechanicalDrives | +2.2.0 | +Christian Kral | +
| EMOTH | +1.4.1 | +Anton Haumer | +
| HanserModelica | +1.1.0 | +Christian Kral | +
| IBPSA | +> 3.0.0 | +IBPSA Project 1 | +
| KeywordIO | +0.9.0 | +Christian Kral | +
| Modelica_DeviceDrivers | +1.8.1 | +DLR, ESI ITI, and Linköping University (PELAB) | +
| Optimization | +2.2.4 | +DLR | +
| PhotoVoltaics | +1.6.0 | +Christian Kral | +
| PlanarMechanics | +1.4.1 | +Dirk Zimmer | +
| ThermalSystems | +1.6.0 | +TLK-Thermo GmbH | +
| TIL | +3.9.0 | +TLK-Thermo GmbH | +
| TILMedia | +3.9.0 | +TLK-Thermo GmbH | +
| TSMedia | +1.6.0 | +TLK-Thermo GmbH | +
| VehicleInterfaces | +1.2.5 | +Modelica Association | +
| WindPowerPlants | +1.2.0 | +Christian Kral | +
+The following new
+libraries have been added:
| Modelica.Clocked | +This library can be used to precisely define and synchronize
+sampled data systems with different sampling rates. +The library previously was available as separate package Modelica_Synchronous. +(This library was developed by DLR in close cooperation with +Dassault Systèmes Lund.) |
+
| Modelica.Electrical.Batteries | +This library offers simple battery models. +(This library was developed by Anton Haumer and Christian +Kral.) |
+
+The following new
+components have been added to existing libraries:
| Modelica.Blocks.Sources | +|
| SineVariableFrequencyAndAmplitude +CosineVariableFrequencyAndAmplitude |
+Added signal sources with variable amplitude and frequency; +sine and cosine waveforms are provided. | +
| Sinc | +Added signal source of
+amplitude*sin(2*π*f*t)/(2*π*f*t). |
+
| +Modelica.Electrical.Analog.Sources | +|
| SineVoltageVariableFrequencyAndAmplitude +CosineVoltageVariableFrequencyAndAmplitude +SineCurrentVariableFrequencyAndAmplitude +CosineCurrentVariableFrequencyAndAmplitude |
+Added voltage and current sources with variable amplitude and +frequency; sine and cosine waveforms are provided. | +
| +Modelica.Electrical.Machines.Sensors | +|
| SinCosResolver | +Added resolver with two sine and two cosine tracks to be used +in drive control applications. | +
| +Modelica.Electrical.Machines.Utilities | +|
| SwitchYDwithArc | +Added wye delta switch with arc model and time delay between +the two switching events. | +
| +Modelica.Electrical.PowerConverters | +|
| ACAC | +Added single-phase and polyphase triac models (AC/AC +converters). | +
| +Modelica.Magnetic.FluxTubes.Shapes.FixedShape | +|
| HollowCylinderCircumferentialFlux +Toroid |
+Added circumferential flux models of hollow cylinder and toroid +with circular cross section. | +
| +Magnetic.QuasiStatic.FluxTubes.Shapes.FixedShape | +|
| HollowCylinderCircumferentialFlux +Toroid |
+Added circumferential flux models of hollow cylinder and toroid +with circular cross section. | +
| +Modelica.Mechanics.MultiBody.Visualizers.Advanced | +|
| Vector | +Added 3-dimensional animation for visualization of vector +quantities (force, torque, etc.) | +
| +Modelica.Mechanics.Translational.Components | +|
| RollingResistance | +Added resistance of a rolling wheel incorporating the +inclination and rolling resistance coefficient. | +
| Vehicle | +Added simple vehicle model considering mass and inertia, drag +and rolling resistance, inclination resistance. | +
| Modelica.Math | +|
| BooleanVectors.andTrue | +Similar to allTrue, but return true
+on empty input vector. |
+
| Matrices.LAPACK.dgeqp3 | +Compute the QR factorization with column pivoting of square or +rectangular matrix. | +
| Random.Utilities.automaticLocalSeed | +Create an automatic local seed from the instance name. | +
+The following existing
+components have been improved in a backward compatible way:
| Modelica.Blocks.Sources | +|
| CombiTimeTable | +Added second derivative and modified Akima interpolation. | +
| Modelica.Blocks.Tables | +|
| CombiTable1Ds +CombiTable1Dv |
+Added second derivatives and modified Akima interpolation. | +
| CombiTable2Ds +CombiTable2Dv |
+Added second derivatives. | +
| +Modelica.Electrical.Analog.Basic | +|
| Gyrator | +Serves as generalized gyrator model as IdealGyrator was +removed. | +
| +Modelica.Electrical.Analog.Ideal | +|
| IdealizedOpAmpLimited | +Added homotopy to operational amplifier. | +
| +Modelica.Electrical.Semiconductors | +|
| NPN +PNP |
+Added optional substrate connector. | +
+The following existing
+components have been changed in a non-backward compatible way:
| Modelica.Blocks | +|
| Nonlinear.Limiter +Nonlinear.VariableLimiter +Continuous.LimPID |
+The superfluous parameter limitsAtInit has been
+removed. |
+
| Nonlinear.DeadZone | +The superfluous parameter deadZoneAtInit has been
+removed. |
+
| Interfaces.PartialNoise +Noise.UniformNoise +Noise.NormalNoise +Noise.TruncatedNormalNoise +Noise.BandLimitedWhiteNoise |
+As a side-effect of the updated computation in
+Modelica.Math.Random.Utilities.automaticLocalSeed the
+localSeed parameter is computed differently if
+useAutomaticLocalSeed is set to true. |
+
| +Modelica.Electrical.Machines.Utilities | +|
| SwitchYD | +The +IdealCommutingSwitch is replaced by an +IdealOpeningSwitch and an +IdealClosingSwitch to allow a time delay between the two +switching actions. | +
| Modelica.Electrical.Spice3 | +|
| Internal.MOS2 +Semiconductors.M_NMOS2 +Semiconductors.M_PMOS2 |
+The final parameter vp has been removed.+The obsolete variables cc_obsolete,
+icqmGB, icqmGS, icqmGD,
+MOScapgd, MOScapgs,
+MOScapgb, qm and vDS have
+been removed. |
+
| +Modelica.Magnetic.QuasiStatic.FundamentalWave.Utilities | +|
| SwitchYD | +The +IdealCommutingSwitch is replaced by an +IdealOpeningSwitch and an +IdealClosingSwitch to allow a time delay between the two +switching actions. | +
| +Modelica.Mechanics.MultiBody.Forces | +|
| WorldForce | +The parameters diameter and N_to_m
+have been removed. |
+
| WorldTorque | +The parameters diameter and Nm_to_m
+have been removed. |
+
| WorldForceAndTorque | +The parameters forceDiameter,
+torqueDiameter, N_to_m, and
+Nm_to_m have been removed. |
+
| Force | +The parameter N_to_m has been removed. |
+
| Torque | +The parameter Nm_to_m has been removed. |
+
| ForceAndTorque | +The parameters N_to_m and Nm_to_m
+have been removed. |
+
| +Modelica.Mechanics.MultiBody.Joints | +|
| Prismatic | +The superfluous constant s_offset has been
+removed. |
+
| Revolute | +The superfluous constant phi_offset has been
+removed. |
+
| FreeMotion +FreeMotionScalarInit |
+The parameter arrowDiameter has been removed. |
+
| +Modelica.Mechanics.MultiBody.Parts | +|
| Body | +The superfluous parameter z_a_start has been
+removed. |
+
| +Modelica.Mechanics.MultiBody.Sensors | +|
| AbsoluteSensor +RelativeSensor +Distance |
+The parameter arrowDiameter has been removed. |
+
| CutForce | +The parameters forceDiameter and
+N_to_m have been removed. |
+
| CutForce | +The parameters torqueDiameter and
+Nm_to_m have been removed. |
+
| CutForceAndTorque | +The parameters forceDiameter,
+torqueDiameter, N_to_m, and
+Nm_to_m have been removed. |
+
| +Modelica.Mechanics.MultiBody.Visualizers | +|
| Advanced.Arrow +Advanced.DoubleArrow +FixedArrow +SignalArrow |
+The parameter diameter has been removed. |
+
| Modelica.Fluid.Machines | +|
| PartialPump | +The superfluous parameter show_NPSHa has been
+removed. |
+
| Modelica.Thermal.HeatTransfer | +|
| Fahrenheit.FromKelvin +Rankine.FromKelvin +Rankine.ToKelvin |
+The superfluous parameter n has been removed. |
+
+The following critical
+errors have been fixed (i.e., errors that can lead
+to wrong simulation results):
| Modelica.Blocks.Math | +|
| Pythagoras | +The case with negative y2 was not correctly
+considered if u1IsHypotenuse is true.
+This has been corrected. |
+
| +Modelica.Electrical.Semiconductors | +|
| Diode | +Fixed unit error in current equations. | +
| +Modelica.Electrical.Spice3.Additionals | +|
| poly | +The case with one coefficient and one variable was not +correctly considered. This has been corrected. | +
| +Modelica.Fluid.Dissipation.PressureLoss.General | +|
| dp_volumeFlowRate_DP +dp_volumeFlowRate_MFLOW |
+The mass flow rate was not correctly computed if the pressure +drop is a linear function of the volume flow rate. This has been +corrected. | +
| Modelica.Media.Air.MoistAir | +|
| density_derX +s_pTX +s_pTX_der |
+The calculation was wrong. This has been corrected. | +
| +Modelica.Media.Air.ReferenceAir.Air_Base | +|
| BaseProperties | +The unit of the specific gas constant R_s was not
+correctly considered. This has been corrected. |
+
| +Modelica.Media.IdealGases.Common.Functions | +|
| s0_Tlow_der | +The calculation was wrong. This has been corrected. | +
| +Modelica.Media.IdealGases.Common.MixtureGasNasa | +|
| T_hX | +The function inputs exclEnthForm,
+refChoice and h_off were not considered.
+This has been corrected. |
+
| +Modelica.Media.Incompressible.TableBased | +|
| T_ph | +The pressure negligence was not considered. This has been +corrected. | +
| Modelica.Media.R134a.R134a_ph | +|
| setState_pTX | +Only applicable in one-phase regime: The Newton iteration for +the calculation of the density may possibly converge to the wrong +root. This has been improved. | +
| setState_dTX +setState_psX |
+The calculation was wrong in two-phase regime. This has been +corrected. | +
| Modelica.Utilities.System | +|
| getTime | +The month and year was only correctly returned if the +implementing source file (ModelicaInternal.c) was compiled for +Windows OS. This has been corrected. | +