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The sliding mode control (SMC) approach is reconsidered for the three phase brushless direct current motor with permanent magnets (BLDC PM). For mathematically matching the SMC to BLDC PM, brief discussion is also made on the mathematical modelling of the BLDC PM motor. The speed control loop for electric drive with BLDC PM is tested especially for load torque variation that will be assumed as additive uncertainty. The loop control implementation uses the TMS320F28335 microcontroller with special processing facilities for electric drive signals. The final target is to validate a fast procedure of setting up the speed/position control loop with a simple starting SMC algorithm. Test results using different valued parameters of the proposed SMC support the rapid prototyping procedure.

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