| Abstract |
The large majority of the inverter-fed AC drives used in industrial plants are variable speed induction motor drives with open-loop control. Therefore, the precondition for further increasing the number of applications and thus the importance of these drives is to further improve their technical performance, making them at the same time more economical. This can be achieved by fu]ly digitized signal processing by means of microcontrollers. However, the calculation performance, the integrated peripherals and the external memories must be used in an optimum way, i. e. that the implemented control and the modulation must be adapted to the specific characteristics of the microcontroller. Thus, a major step towards favourably priced frequency inverters for AC drives is made. |
