Lifetime Improved in Power Electronics for BLDC Drives using Fuzzy Logic and PSO

摘要

The brushless direct current drives (BLDC) are extremely popular in several applications such as robotics, transportation, and manufacturing, the lifetime of power electronics deserves special attention in industrial applications, so this paper explores how the lifetime is affected when the reference speed is changed when a conventional speed controller is deployed. This paper illustrates how to design an optimal controller based on fuzzy logic and Particle Swarm Optimization (PSO). The optimized controller reaches the reference speed at the same time it keeps the temperature in the semiconductors of the BLDC within minimum variations to preserve the loses in a minimum value in the power electronics stage, so the lifetime of the power electronic stage is incremented. A co-simulation of the BLDC, which is a powerful simulation tool for getting similar result to experimental tests is presented. The results validate the proposed optimized controller as well as show the increment in the lifetime of the power electronic stage in the BLDC.