Automated formation of calculation models of the rotor of asynchronized turbogenerators for software environment FEMM

Abstract

Attention to the popular FEMM (Finite Element Method Magnetics) program, effective in the numerical calculations of the magnetic fields in electrical machines is attended. The main problem of its using – high time costs on the formation of a graphical model, representing the construction and on the formation of a physical model, representing materials properties and machines winding currents, is solved. Principles of an automated formation of such models on the asynchronized turbogenerator example are developed and presented for this purpose. A program written in an algorithmic language Lua which integrated into the package FEMM realize this task. The program is universal from the standpoint of varying the geometry and dimensions of the designed asynchronized turbogenerator. It uses a minimum of input information in a digital form, representing the design of the whole asynchronized turbogenerator and its fragments. A general structure of the Lua script is given, significant parts of its text, the graphic results of work's phases, as well as explanations of the program and instructions for its use are provided. Performance capabilities of the compiled Lua script on the example of rotor of the real asynchronized turbogenerator ASTG-200-U3 are presented.