Product Overview

RMxprt™ offers a machine-specific, template-based interface that allows users to easily enter design parameters and calculate critical performance data, such as torque versus speed, power loss, flux in the air gap, and efficiency as well as determine lamination and winding schemes.

Performance data is calculated using a combination of classical electric-machine theory and a magnetic circuit approach. The software uses improved Schwarz-Christoffel transformation to compute field distribution in both uniform and non-uniform air gaps and applies Gaussian Quadrature to treat the equivalent surface current of permanent magnets. Leakage field and corresponding inductance are derived based on the analytical field computation.

Using a model based on distributed parameters, RMxprt takes skin effects into account and can calculate 3D end effects. Due to a very efficient relaxation-based iterative technique, the calculation of saturation coefficients in the equivalent circuit is fast and accurate. This allows saturation effects to be taken into account efficiently for all supported types of electrical machines.

Design Flow

The results obtained from RMxprt™ can be used as part of a complete design solution that includes Maxwell®, for detailed electromagnetic field modeling, and Simplorer®, for power electronic and drive simulation.