Method for operating induction machine e.g. permanent magnet synchronous machine (PMSM) of drive system, involves determining corrected default value for each phase for adjusting voltage vector at inverter based on preset error value

摘要

The method involves setting a voltage vector of induction machine (4) through power switches (S1-S6) of inverter (1). The preset error value per phase (U,V,W) is determined corresponding to respective switch in order to compensate dead time period. The corrected default value for each phase is determined for adjusting the voltage vector at inverter based on determined preset error value per phase. The simulated phase current value is determined based on corrected default value and desired current requirements. Independent claims are included for the following: (1) device for operating induction machine; and (2) drive system.