Abstract
The electric vehicle traction of Brushless Direct Current Motor (BLDCM) is better from other electric machines due to its magnetic flux linkage, power to weight ratio and so on. The conventional Field Orientation Control (FOC) scheme with sensor for BLDCM has few shortcomings like deviation of current and thrust characteristics. In this paper, we have proposed a sensor less FOC for BLDCM. The back emf and speed of machine are estimated using slide mode controller which is given as a feedback to the motor controller part. The results are observed by varying reference speed which results in controlling the speed of machine accordingly. The results are verified by simulation and experimental evaluation. Simulation is done through MATLAB 2020a software and the experimental evaluation is done through Altair Embed Emulator which controls the BLDCM.
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