SENSORLESS SPEED DETERMINATION FOR BRUSHLESS DC MOTORS

evo_services_development_software
Sensorless detection systems are becoming increasingly important for controlling electrical machines due to their cost savings. In cooperation with Esslingen University of Applied Sciences, an electric drive train was simulated for this purpose.
Initial situation:             
Brushless DC motors are becoming increasingly popular in electromobility. In order to electronically control these electric motors, reliable position detection from rotor to stator is required. This is currently achieved by using several sensors. In order to make such detection more cost-effective in the future, the sensors are to be replaced by the evaluation of signals generated in the motor.

Project assignment:                               
Creation of a prototype for sensorless speed and position detection in hardware and software.

Implementation:                                     
By building a hardware prototype, measurements were carried out using variable circuits, which demonstrated the minimal circuit effort. Using varying software, software program sequences were optimized in terms of time and the limits of the current hardware were shown. The use of development boards and the discussion of the resulting software using flow charts led to faster results.

Solution:                                               
The successful creation of the prototype showed that an application-specific solution is possible. Furthermore, the structure shows the limits of the measurement method used. The project is currently being implemented using guidelines and templates from the process manager. The final conclusion can be given after the project has been completed.

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