The topic of this diploma work was to implement an fieldoriented regulation for a permanent magnet synchronous machine with a microcontroller. The received real system should be described as exactly as possible so that a simulation with Matlab (Simulink) exhibits the same behaviour. To develop such a simulation is only possible by a very exact knowledge of the mathematical and physical description. Therefor a lot of theory had to be studied. The machine parameters were evaluated with suitable measuring methods. With these parameters it was possible to verify the open loop behaviour of the used machine by simulation.

The fieldoriented regulation is based on the Park transformations, which converts AC- into DC-values. This allows to build a DC-regulation circuit and to transform back into AC-values. By this regulation the synchronous machine gets the same characteristics as a DC-drive. This leads to the contradictory designation ?Brushless-DC-Drive?. The complex regulator circuit algorithms can only be realised by using a microcontroller. Instead of a normally used DSP, a conventional microcontroller (MSP430F149) has been chosen and was implemented using assembler language. The low resolution of the position indicator, which is the only measuring element, leads to some problems during the implementation of the speed and position regulation.

Nevertheless the fieldoriented regulation was realised as desired. The overlaid regulation circus must be optimised depending upon load case. The closed loop simulation was no more provided for temporal reasons. Project partner was the Baumer electric company in Frauenfeld, which will use this diploma work as basis for the realisation of an integrated drive with bus binding.