Özet:

Brushless Direct Current-BLDC is one of the electric engines that are classified in the group of synchronous engines and are preferred in industrial areas due to their advantageous features. The magnets that produce a fixed magnetic field in the structure of the BLDC engines directly contribute to the engine performance. The NdFeB magnets used in BLDC engines and produced in different power degrees of rare soil elements are preferred for their excellent magnetic properties. In permanent magnets, although the effects of physical factors and environmental conditions are determined by performance values, maximum energy output, now flow intensity B_r, and internal force forcing H_ci parameters. This study analyses the types of Alnico, Ceramic, SmCo and NdFeB magnets used in BLDC engines in the permanent magnetic rotor structure and the effects of these magnets on the motor performance parameters. For engine performance, magnetic types are compared according to speed, efficiency and rotation values. The magnetic characteristics of NdFeB are determined in the analysis comparisons. Therefore, the types of these magnets obtained in different power degrees (N28-N38-N42-N52) are also added to the work, taking into account the work conditions at different temperatures (20°C, 60°C, 80°C). In the study, using the permanent magnetic BLDC engine (IPMBLDC) with a 2.45 kW power-in-covered monted rotor, the analysis of the end-elements method for this engine also determines the effects of the NdFeB magnetic types on the motor heat transfer.

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