Sensorless Control means that no external position sensor is necessary to control the torque respective the speed of a PMSM (Permanent Magnet Synchronous Motor). We are able to cover the hole range of speed including standstill. For this we use the motor itself as a position sensor. For low voltage applications we use a standard MOSFET inverter. With an TAPAS board we can investigate the influence of the switching frequency to the motor control. At standstill and at low speed the high switching frequency of a wide bandgap inverter is contra productive to our control theory. The goal is to investigate if the output filter of the TAPAS board is a handicap for our control.
Therefore we would equip a 48V motor with a TAPAS board. The test bench for this application has a eddy current brake for applying load. The MOSFET inverter we used for this is a C2000 type from TI. The attached Raspberry Pi could be used to control the motor via a web page.
We will check if we could incite some of our students for this project. Normally we start with our courses in the beginning of March...
To be prepared for some accident a set of three TAPAS boards would be fine. With more than one board we could also do some work in parallel (motor control and raspberry pi topics).
This idea will get a TAPAS dev kit.