Dynamic properties of high-speed electrical motor supercharger

This paper presents some specific issues of a high speed permanent magnet synchronous motor control used in a combustion engine supercharger system. A description of a method designed to limit the load angle of synchronous motor in high speed is given. Also experimental results in dynamic states are shown. In these states mainly acceleration times and energy intensity with correlation on motor current and field weakening were examined. Dynamic properties were tested for a power supply with both high and low internal resistance. The experimental setup description is given and test results for speed up to 42 000 RPM are shown.