Proceedings of the 5th International Modelica Conference Volume 2

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J.-W. Ding, L.-P. Chen, F.-L. Zhou, Y.-Z. Wu, G.B. Wang The Modelica Association Modelica 2006, September 4 th – 5 th 358
Engineering Design Tool Standards and Interfacing Possibilities to Modelica Simulation Tools Abstract Olof Johansson, Adrian Pop, Peter Fritzson PELAB – Programming Environment Lab, Dept. Computer Science Linköping University, S-581 83 Linköping, Sweden {olojo,adrpo,petfr}@ida.liu.se This paper briefly describes some international standards used for engineering design tools that precede simulation in the product development process. Very much information in such design tools can be reused when developing Modelica simulation models. Examples are product structures, component parameters, and component connection information. The Modelica Standard Library (MSL) with the latest version 2.2.1 has grown significantly the last years. An analysis of the contents of MSL is provided, and a classification method described to ease the work of mapping structures, component parameters and connections in engineering design tools such that their information content can be reused for development of Modelica simulation models. ModelicaXML has been upgraded to support Modelica 2.2, and is briefly described as one of the most promising intermediate formats for exchange of models between engineering design tools and Modelica simulation tools. 1 Introduction Engineering Design Tool Standards and Interfacing Possibilities to Modelica Simulation Tools Modelica is currently the most promising language for developing integrated simulation models of power plants that cover the process-, electrical- and control system aspects. Today such integrated simulation models of a whole power plant are in practice not possible to develop at reasonable costs, because of the lack of compatible interoperating standards. Currently plant industry struggles with classification standards for electronic data exchange of plant models. When this struggle has settled on a reasonable set of working standardized solutions, one coming large standards struggle will be in exchange of simulation models for power plants, subsystems, and components provided by the supply chain. Integrated simulation models can provide significant added value to the current engineering systems during the whole life cycle of a power plant. This paper outlines a path to bridge the gap between different standardized engineering languages supported by commercial engineering tools and Modelica simulation tools. 2 Contents of International Standards for Engineering Design Tools ISO, IEC, DIN and VGB provide standards for the power plant industry, which are supported by commercial engineering tools for power plant system design. These standards apply to: 1) Structures and designation systems 2) Symbols on graphical diagrams 3) Document classification 4) Component classification 5) Electronic information exchange Figure 1. Standardized Plant Model Features The systems engineering [2] of a power plant is usually divided into: 1) Process Engineering 2) Electrical Engineering 3) Control Systems Engineering Figure 2. Engineering Disciplines Each of these engineering disciplines has their special views on a product model of a power plant, which often follow an international standard. A designation system standard specifies how to name an object in the plant, and how to refer to it with relative names on printed documentation like diagrams and data listings. Power plant designation system stan- The Modelica Association Modelica 2006, September 4 th – 5 th 359
Page 1 and 2: 2006 Proceedings of the 5 th Intern
Page 3 and 4: Preface Preface The first Internati
Page 5 and 6: Table of Contents Volume 1 Table of
Page 7 and 8: Table of Contents Using Modelica Mo
Page 9 and 10: Table of Contents Vehicle Model for
Page 11 and 12: Table of Contents Session 6b: Therm
Page 13 and 14: Index of Authors Index of Authors A
Page 15 and 16: Index of Authors Doppelhamer, J. On
Page 17 and 18: Index of Authors Hirsch, T. Simulat
Page 19 and 20: Index of Authors Matthes, P. Couple
Page 21 and 22: Index of Authors Richter, C.C. Mode
Page 23 and 24: Index of Authors Urquia, A. ARENALi
Page 25 and 26: Session 4 Poster Session Session 4
Page 27 and 28: GAPILib - A Modelica Library for Mo
Page 33 and 34: • 50 parents were used in each ge
Page 35 and 36: Abstract Ascola: A Tool for Importi
Page 37 and 38: 3.2 Mapping of Modelica Models to A
Page 39 and 40: Figure 3: Graphical user interface
Page 41 and 42: An Analyzer for Declarative Equatio
Page 43 and 44: tential variable, and make these eq
Page 45 and 46: connect(Sa.flange_b, Fa.flange_b);
Page 47 and 48: e14: Emf.v = Emf.p.v-Emf.n.v e15: 0
Page 49: Acknowledgement This work was suppo
Page 53 and 54: symbols and their KKS designations
Page 55 and 56: The code letter A3 provides a subcl
Page 57 and 58: key, and display the tree in a navi
Page 59 and 60: Engineering Design Tool Standards a
Page 61 and 62: Abstract On the Noise Modelling and
Page 63 and 64: 1..* Free_Noise_Model 1 Model Proce
Page 65 and 66: The uniform random generator over t
Page 67 and 68: References [1] Cellier, F.E., Conti
Page 69 and 70: Abstract Acausal Modelling of Helic
Page 71 and 72: ¨ b +Cf ˙ b + D f b = Hf The matr
Page 73 and 74: unphysical algebraic loop by means
Page 75 and 76: 4.2 Piloted flight Introducing a ve
Page 77 and 78: Dynamicmodelingandcontrolofa6DOFpar
Page 79 and 80: Xref Cartesian elasticity E { F�
Page 81 and 82: Original system Feedforward control
Page 83 and 84: Modelling of Alternative Propulsion
Page 85 and 86: flange_a r FSlope = m Vehicle ⋅ g
Page 87 and 88: U SoE = U max 4 Control Strategies
Page 89 and 90: Figure 8: Comparison of the vehicle
Page 91 and 92: Abstract Modelling Automotive Hydra
Page 93 and 94: All components in the library exten
Page 95 and 96: accumulator needed to be sufficient
Page 97 and 98: Vehicle Model for Transient Simulat
Page 99 and 100: Vehicle Model for Transient Simulat
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Vehicle Model for Transient Simulat
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Abstract Modeling,CalibrationandCon
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tio,u[kgwater/kgdrysubstance],dryba
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Inparticular,thepapertemperatureisv
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acter. Thefinalproblemconsistsof953
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u[·] p sp [kPa] 0.04 0.035 0.03 50
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System and Component Design of Dire
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• specified cooling power for min
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tion). Thinking of the system as be
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nonlinear gas spring (section 2.2).
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3.3 Motor evaluation For comparison
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Abstract Multizone Airflow Model in
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K a [−] 1.04 1.03 1.02 1.01 1 0.9
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of the density at the two reference
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Table 1: Parameters of the flow ele
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References [1] ASHRAE. Fundamentals
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Modelling of a Solar Thermal Reacto
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Figure 3: Screenshot of the overall
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and the solar radiation are enterin
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input towards the rim and the radia
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Object Oriented Modelling of DISS S
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first one is a flooded evaporator a
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Tamb Rad InletTe... InletPre... mdo
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2 1 0 1000 500 600 400 mdot_in [Kg/
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Session 5a Language, Tools and Algo
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OpenModelica Development Environmen
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Figure 1. The architecture of Eclip
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OpenModelica Development Environmen
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ever, industry analysts suggested t
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A Modelica-based Format for Flexibl
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when {h b, c < a} which yields a p
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Jacobians Jacobians can be defined
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piler is able to create code for th
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A Modelica Based Format for Flexibl
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Dymola interface to Java - A Case S
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Record[] com.dynasim.record[] The r
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low background denotes ongoing simu
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4 Conclusions A new interface betwe
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Abstract Simulation of complex syst
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The following interfaces are curren
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Cond_mair duration... Cond_... k={i
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Session 5b Thermodynamic Systems fo
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Optimization of a Cooling Circuit w
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of the impeller wheel and the shove
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Figure 5: The measured and simulate
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8 Abbreviations ICE internal combus
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Abstract Using Modelica as a Design
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work with Modelica.Media and Modeli
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The above example is instantiated i
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The cooling power of the convention
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Abstract Modeling of Frost Growth o
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energy balance then reduces to the
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[5]. µ = 1 − ea + 10 F ea (1 −
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face temperature according to the u
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[4] Sanders, C. T., Frost Formation
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Multizone Building Model for Therma
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uncertainty in modeling assumption
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Table 1: Latent heat gains from occ
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is accurate enough for many room co
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Figure 2: View of room model in Dym
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Session 5c Free and Commercial Libr
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Abstract The LinearSystems library
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The data part of the record contain
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ing and Bessel filters, the step re
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the same discrete states (provided
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y� = x� x� =−b⋅ x+ u Ther
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ARENALib: A Modelica Library for Di
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a) b) c) d) e) f) Figure 1: ARENALi
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7 Data Modules Data modules represe
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a) b) Figure 2: Drilling center mod
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a) b) ARENALib: A Modelica Library
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Abstract Neural Network Library in
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Theorem 1 (Universal Approximator[4
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Figure 5: Library structure 3.1 Bas
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where x and y are the inputs of the
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previously identified through a spe
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Abstract The Modelica Multi-bond Gr
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solution for his or her task. Model
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The mass itself is represented by t
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where the variables of the rotation
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Table 3: Comparison of the two mech
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Session 5d Electric Systems and App
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The SmartElectricDrives Library - P
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cascaded structure deploying many e
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4.1 Simulations with ’ready-to-us
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The SmartElectricDrives Library - P
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Abstract Quasi-stationary AC Analys
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vt () = vˆ sin( ωt + ϕv) and rep
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containing real and imaginary part
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T n . (22) Slip s and torque T are
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changeover). Now, the phasor-domain
Page 283 and 284:
Identi cation and Controls of Elect
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ules for setting the control parame
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warm excitation resistance = 2:5 W
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Figure 7: Observation of the interm
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Session 6a Language, Tools and Algo
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Dynamic Optimization of Energy Supp
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x = u x u u 0 1 I ( x) → min equa
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Fig. 9: Optimal loading courses 2.
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Fig. 16: Storage temperature course
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Abstract Robust Initialization of D
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situation is reached when all the c
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1. Use Pantelides algorithm to dete
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Figure 3. Voltage source. In order
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��
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� ��
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��
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Abstract Automatic Fixed-point Code
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that sum up to the total word lengt
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In order to use fixed-point arithme
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Figure 5: Plot of reference speed a
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Session 6b Thermodynamic Systems an
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The Modelica Fluid and Media Librar
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Page 331 and 332:
Page 333 and 334:
Page 335 and 336:
Abstract Shock Wave Modeling for Mo
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limiter, simply a bounded function
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Using Roe’s averages and the diff
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Figure 9: Difference between single
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6 Conclusions and Future Work We ha
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Abstract Modeling of an Experimenta
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filled with a single or multiple-su
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A third solution variant would be t
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For the model of the batch plant th
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V1.open = controller.sensors.V1; an
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Integral Analysis for Thermo-Fluid
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where dU dt () t − q () t = q (5)
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3.2 Planar Wall with Convection Fig
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geometries. This approach allows th
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Session 6c Free and Commercial Libr
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Integration of CATIA with Modelica
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2. The CAD model of the components
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6 Conclusion We have presented an i
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A Modelica Library for Simulation o
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Saturation solubility m Ref / m Lub
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evaporator temperature sensor air v
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el. power consumption in [W] satura
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Abstract A New Energy Building Simu
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surroundings, such as outdoor air,
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tsol , tstd + L std L loc 15 =h w =
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Half exterior wall 1 West Half exte
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Incident Solar Radiation west, clou
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Abstract UnitTesting: A Library for
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unique name in the instance hierarc
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sion coverage, we simply divide the
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So far, we have only considered str
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from the report into the test case
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Session 6d Multidomain Systems Sess
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Abstract If we only had used XML...
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models, i.e. the Simple API for XML
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2.3.5 Retrieving data Figure 3: mat
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3.2 Dymola Following the object ori
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Figure 13: Motor speci cation Figur
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Coupled Simulation of Building Stru
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“match box” shaped room. In the
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Thermal effects can be described us
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The power control included in the h
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MWorks: a Modern IDE for Modeling a
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C.n.v = AC.n.v; G.p.v = AC.n.v; L.n
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Domain Library Preprocessing in MWo
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