E3S Web Conf.
Volume 309, 20213rd International Conference on Design and Manufacturing Aspects for Sustainable Energy (ICMED-ICMPC 2021)
|Number of page(s)||7|
|Published online||07 October 2021|
Speed control of robust position sensor less PMBLDC motor by Fuzzy controller
Department of EEE, GRIET, Hyderabad, Telangana, India
* Corresponding author: email@example.com
The aim of this work is to present a novel mechanical sensor-less control approach for permanent magnet brushless DC (PMBLDC) motors based on speed independent H functions. The starting of the motor and driving it from a low speed to the rated speed are two significant problems in sensor-less operation of PMBLDC motor drives. The commutation moment is determined using a speed-independent H function. Since the commutation instant is speed independent, it may be anticipated even at low speeds. The H function is entirely dependent online voltages, which simplifies and reduces the cost of the whole system. The suggested approach eliminates the need for analogue filtering and phase correction. Digital low pass filters and digital phase compensators are used to remove commutation ripple from line voltages. This results in a system that is small, simple to use, and cost effective. This economical option is ideal for low-cost equipment such as fans, air conditioners, refrigerators, and vacuum cleaners. The suggested method is implemented using a fuzzy controller to demonstrate the proposed sensor-less technique’s efficacy for wide speed variations.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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