Download Transformers and Inductances

transformers and inductances
Transformers and inductances
Transformer design & analysis (Flux)
For transformer modelling, Flux features numerous tools
and capabilities allowing a precise and efficient computation.
Dedicated to 2D and 3D electromagnetic and thermal
finite elements analysis, Flux enables to simulate electric,
magnetic and thermal behaviour of the device in static,
harmonic and transient states.
Depending on its size and industrial application, the
transformer design often requires various analysis
(magnetic, electric, thermal…) taking into account
many different constraints (physical, economical …).
For the design of any transformer and inductance
CEDRAT offers a wide range of innovative software
solutions:
Both harmonic (sinusoidal steady state) and transient
computation can take into account the supply, the loads
(balanced or unbalanced) and the connections between the
different conductors.
»Flux – for electromagnetic and thermal finite
element analysis
»GOT-It – for performances optimization using
Design of Experiments
»Portunus – for system design accounting for the
drive and control loops
»PSCAD – for networks simulation including
transformers
Thanks to the circuit context embedded in the finite element
part, it is possible to design an electrical circuit with various
components (such as current and voltage sources, diodes,
switches, inductors...) as well as special Flux features for coils
modeling: stranded and solid conductors. Those special
components can model either wounded coils or conductors
where Eddy Currents and skin effects are sizeable. Thanks
to dedicated regions such as thin conducting and impedance
surface it is possible to model the skin effect in conductive
parts (transformer tank, frames, shunt fastening) up to
several MHz.
All those results are presented in various formats:
Colour shaded maps, vector plots, cutting planes, 2D and 3D
curves, AVI animations, export capabilities (Excel®, text).
Flux multiparametric solver and postprocessor give an
easy access to a tremendous amount of results such as:
»Magnetic quantities in all the magnetic parts (flux,
permeability...)
» Electrical quantities in the coils as well as in all the
components modelling the supply and the loads.
» Power balance: power dissipation (Joule losses) in the
different conductive parts of the geometry as well as iron
losses in the core (Bertotti, LS models)...
» Force on coils
» Spectral analysis of any quantity
» Computations on various supports: points, paths, grids,
groups of regions...
Tool benefits
» Advanced import & export capabilities from various
formats (IGES, STEP, CATIA…)
» 2D Sketcher and geometry simplification using
symmetries
» Full parametric capabilities (geometry, physical
properties, electric components)
»Smart automatic mesh and mesh assistance
»Predefined 3D non-meshed coils
» Automation capabilities using macros and command
files
CAD
Imports
System
Simulation
-
Portunus
by CEDRAT
Co-Simulation
Flux
by CEDRAT
Electromagnetic
and Thermal FEA
- MATLAB/Simulink
Virtual prototype ready to
industrialize
Input
parameters
GOT-It
by CEDRAT
Device
optimization
Output
functions
Optimization
Tool
Surrogate factory
Performances optimization (GOT-It)
Using advanced optimization strategies based on Design of
Experiments approach, GOT-It software allows performing
quickly and efficiently optimizations with several objectives
and constraints. It is possible for instance to optimize
the transformer performances and minimize the cost by
respecting several constraints (saturation, max current,
size…). Coupled to Flux, GOT-It handles automatically
optimizations based on 2D and 3D finite elements models.
Thanks to the indirect optimization strategy the computation
time is reduced to the minimum with the guaranty of
accurate results.
Electrical networks including
transformers (PSCAD)
PSCAD, the power systems simulator, features advanced
models to simulate transient behaviour of various kinds
of transformers (single or three phases up to 4 windings,
autotransformer, current or coupled capacitor voltage
transformer, mutually coupled coils…) including the core
saturation given by the non-linear characteristics. Different
phenomena like inrush currents, remanence, geomagnetic
current effects and ferroresonance can be modeled and
analyzed.
Tool benefits
Tool benefits
» Design of Experiments (Box, Latin Hypercube, Taguchi…)
»Response surfaces (polynomial, RBF, kriging, Space
»Large, detailed and validated component library
» Parametric simulation thanks to multi-run capability
» Ability to dynamically interact, change parameters
Mapping…)
» Sensitivity and robustness analysis tools
» Stochastic and Deterministic algorithms
» Continuous or discrete parameters
» Analytical and numerical functions (or combination)
Modeling the drive (Portunus)
The transient behaviour of a transformer is widely dependent
on its drive. Modeling then both the device and its drive
gives a better prediction of the behaviour. Thanks to the
advanced Flux to Portunus co-simulation technology it
is now possible to model any complex drive. Flux features
co-simulation capabilities with Portunus enabling the
design, within the same simulation run, of the device and its
drive taking into account saturation, Eddy currents, control
loops…
via switches, sliders during the simulation within modern
interface
» External interfacing- C, Fortran, Matlab/Simulink and
custom components creation
» Harmonic measurements
» Protection and control system design, optimization, and
validation studies.
Tool benefits
MAGSOFT
for Americas & Asia
www.magsoft-flux.com
CEDRAT
for Europe & the Middle East
www.cedrat.com
References
For any type of transformers, CEDRAT solutions are the
reference in many organisations worldwide:
ABB, Alstom, Electricité De France, Federal Mogul, General Electric, Hydro
Quebec, Korean Electrotechnology Research Institute, Iskra Stikala,
Schneider Electric (official software), Trafomec, Trasfor, Transrail, VATech,
Westinghouse.
CEDRAT S.A.
15 chemin de Malacher • Inovallée
38246 MEYLAN CEDEX • FRANCE
Phone: +33 (0)4 76 90 50 45
Fax: +33 (0)4 56 38 08 30
Email: [email protected]
[ www.cedrat.com ]
Copyright CEDRAT July 2012
» System simulator for mechatronic design and complex
multi-physic, multi-level description
» Circuit network for magnetism, electrical, mechanical and
thermal application
» Block diagrams for signal flow descriptions (command
model)
» State machine for even-driven simulations
» Possibility to create or import complex system with SPICE,
C\C++, VHDL-AMS
» Co-simulation with Flux (FE electromagnetic software),
Simulink and Keil µVision (design for embedded system with
microcontrollers)