As a self-developed low-frequency electromagnetic field calculation software, EASIMOTOR software has distinct Chinese characteristics: the software commands, menus, and help are all in Chinese. It has built-in electromagnetic characteristics of commonly used silicon steel sheets, magnetic steel, and conductors in China. It has the ability to calculate skewed slot segments, automatic calculation of AC and DC axis inductance and flux linkage, built-in vector control of permanent magnet machines and induction machines, direct torque control, etc., built-in uncontrolled rectification of generators, and algorithms for fully controlled rectification. It also has the ability to conduct cosimulations with PORTUNUS system simulation software.
The following is an example of an automotive drive motor completed using EASIMOTOR software, including the results of three simulations: Id=0, maximum torque current ratio, and weak magnetic control:
Motor model

Finite element calculation model
AC and DC axis inductance and flux linkage
Id=0 AC and DC axis current, d axis current remains at 0
Voltage |
Current |
Torque |
Speed |