Simcenter™ SPEED™ software offers a complete solution for electric machine design motoring and generating, covering a wide range of electric machines types

Simcente SPEED includes all the necessary theoretical and physical models for a rapid e-machine design with a flexible approach. It combines the following methods to balance calculation speed and accuracy:

Analytical methods for almost instan-taneous results, making it attractive for those using design exploration programs (for example, HEEDS™ soft-ware) or performing what-if studies

Quick and smart usage of 2D finite element (FE) magnetostatic analysis to more precisely model magnetic saturated regions

The Simcenter SPEED suite supports the following e-machine types in its various individual programs:

PC-BDC: Synchronous machine;  permanent magnet (PM) surface, PM bread-loaf, IPM, spoke PM, PM inset, reluctance, wound field, interior and exterior rotor, single-, 2-, 3- and multi-phase machines

PC-IMD: Induction machine; all stan-dard bar types, wound field, interior and exterior rotor, single-, 2-, 3-phase

PC-SRD: Switched reluctance machine; all standard rotor types, interior and exterior• PC-DCM: Brushed PM-direct current (DC) machines; all standard PM brushed rotor types

PC-WFC: Wound-field commutator machines; all standard wound-field brushed rotor types

PC-AXM: Axial flux machines; all stan-dard PM axial flux rotor types along with claw-pole and double radial PM flux machines

Material databases are available in SPEED including steel, magnet and brush data.The Winding editor shows:

Single and multiple phase coil distribution

Magnetomotive force (MMF) wave-form and its harmonics

The Görges diagram

The winding scheme and the wire  distribution in the slot

The Template editor collects all input parameters, whereas the Design sheet provides all the output data in numeri-cal format and the various Output graphs visualize the results in a graphi-cal manner, e.g. current, back EMF, torque or efficiency map (below).

Simcenter SPEED links to several gen-eral-purpose 2D and 3D electromagnetic finite element solvers such as Simcenter STAR-CCM+™, Simcenter MAGNET or to the Simcenter SPEED dedicated 2D magnetostatic program, PC-FEA. These enable modeling and study of the electric machine more precisely if needed, for example in cases of high saturation, under fault conditions, and non-SPEED template based geometries.

In general, users can connect Simcenter SPEED with other tools required for the complete electric machine solution using various scripting or programming languages. More specifically, automa-tion makes use of the scripting capabili- ties as driving Simcenter SPEED on its own or together with other programs, such as STAR-CCM+. This automated workflow follows the scripting approach and uses STAR-CCM+ and its multiphys-ics solvers for electromagnetic, thermal (full 3D conjugate heat transfer) and mechanical stress analysis along with Java scripts to provide and feed back additional information to Simcenter SPEED.

In many applications, the electric machine is embedded in a complex system that must be properly designed as well. Simcenter SPEED supports Simcenter Amesim™ software for sys-tem simulation by creating data files that can be exported from SPEED directly as:

A simple linear parameter list or

Flux linkage with iron loss 2D maps for the enhanced e-machine models within Simcenter Amesim