The Application of Average Voltage Estimation Models in Simulation of Permanent Magnet AC Electric Motor and Generator Drive Systems

摘要

This paper explores the application, development and potential benefits of using Average Voltage Estimation techniques in Matlab/Simulink modelling of Permanent Magnet AC (PMAC) electric motor and generator drive systems. These models can include all elements of a multi-technology system; electrical circuits, power electronics, digital control, electromagnetic machine, dynamic mechanical loads, and in the case of wind turbines also time varying aerodynamic subsystems. The paper compares the performance of an average voltage model against the standard switching converter approach for both PMAC motor and generator drives to ensure the accurate prediction of key operating parameters throughout the complete operating range. The result is that the averaging model performs well for both motor and generator systems but with the significant advantage of greatly accelerated simulation times thus making this technique attractive for system level modelling which also requires detailed modelling of mechanical and possibly aeronautical systems.