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In this article, we propose an identification-based control scheme for a DC Brushless motor drive. The identification scheme is based on the algebraic identification method which allows for fast parameter identification whose, on line, computed values are used in canceling out the nonlinearities of the system dynamics thus reducing the control problem to that of a pure integration system. The control...
Investigations were carried out on a sensorless fuzzy direct torque control (DTC) which drives brushless DC motors (BLDC). It is deduced that the amplitude of stator flux linkage can not been controlled in BLDC-DTC since it is automatically determined by every 60 electrical degrees commutation. Then, the control of the flux linkage is unused in the proposed system. For the sake of improving the static...
This paper presents the main results and conclusions of the thesis entitled ldquosystematic comparison of BLDC-motor concepts with application to small power wet-running water pumpsrdquo. A general method for the systematic comparison of different motor concepts is shown. This method is then used to compare seven different motor concepts for the aforementioned application. Finally, the results are...
Direct torque control (DTC) can directly control the inverter states in order to reduce the torque error within the prefixed band limit. DTC of brushless dc drive with trapezoidal back-EMF is presented in this paper. Using the rotor flux vector position in alpha-beta axis stationary reference frame and torque error, the proper switching pattern can be selected to control the generated torque and reducing...
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