Abstract
Brushless DC motor has permanent magnets in the rotor side that rotates around fixed armature. The current rotates in armature continuously as it is electronically commutated. The motor’s efficiency will otherwise reduce due to commutation angle errors. The novelty of the work is to reduce commutation errors that are obtained based on commutation point phase shift and the dc-link current difference. Based on these relationship analysis is made under ideal, advanced and delayed commutations. The self-compensation method of commutation instant deviation delays the commutation angle by 10º thus reducing the impact caused by commutation ripple thereby improving dynamic response and control. The dc-link current difference decrease gradually and phase deviation converges to correct the commutation angle. The proposed correction method can achieve ideal commutation effect thereby attaining fast convergence speed, current and torque.
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Pillai, M.S., Vijina, K. (2018). A Novel Self Correction Torque and Commutation Ripples Reduction in BLDC Motor. In: Zelinka, I., Senkerik, R., Panda, G., Lekshmi Kanthan, P. (eds) Soft Computing Systems. ICSCS 2018. Communications in Computer and Information Science, vol 837. Springer, Singapore. https://doi.org/10.1007/978-981-13-1936-5_74
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DOI: https://doi.org/10.1007/978-981-13-1936-5_74
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