Annotation. A model of a brushless direct current (BLDC) motor in the form of differential equations has been developed, taking into account the influence of external factors and defects. The measurement of the output parameters of the BLDC motor takes place in the process of acceleration at constant acceleration. For practical tasks it is proposed to use a correcting link, which allows minimising the change in the output parameters of the BLDC motor, such as angular velocity of rotation and torque. In the presence of defects, the developed system allows to detect them and report their presence if the degradation of parameters reaches a certain threshold value. The obtained research results can be used to build diagnostic systems for electric drives, neutralise the influence of the external environment, change the settings of the parameters of the BLDC motor in the control system.
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