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BLDC HALL SENSOR DISPLACEMENT
- Citation Author(s):
- Submitted by:
- Yongkeun Lee
- Last updated:
- Mon, 09/30/2024 - 20:26
- DOI:
- 10.21227/17e3-t177
- Data Format:
- License:
99 Views- Categories:
- Keywords:
Abstract
Brushless DC (BLDC) motors depend on accurate rotor position detection via Hall sensors for optimal performance. Faults, such as sensor displacement, can disrupt commutation and lead to efficiency losses. This study utilizes deep learning to detect Hall sensor faults, focusing on a meticulously prepared dataset designed for this purpose. The dataset study consists of phase current measurements under various Hall sensor displacement conditions, categorized as No Delay, 0.0001 Delay, 0.005 Delay, and 0.01 Delay. This dataset supports the development of deep learning models for accurate fault detection and classification, contributing to enhanced motor control and diagnostic capabilities.
The dataset comprises normal and flawed three-phase current data, created by varying the commutation timing through Hall sensor displacement at four distinct intervals: 0 seconds (zero PWM pulse period displacement), 0.0001 seconds (2 PWM pulse periods), 0.005 seconds (100 PWM pulse periods), and 0.01 seconds (200 PWM pulse periods) for the A, B, and C Hall sensors. The pulse width modulation (PWM) frequency used in this study is 20 kHz.
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RAW_DATA_before_RGB.zip: Contains the raw time-series data (time vs. phase currents iai_aia, ibi_bib, and ici_cic) in Excel format for each commutation timing (No_delay, 0.0001 sec, 0.005 sec, 0.01 sec) across all three Hall sensors (A, B, C). For instance, the file 0.0001_delay_A.xlsx corresponds to a 0.0001-second delay for Hall sensor A. Each delay set is organized into corresponding folders (e.g., all 0.0001 sec delay files are in the 0.0001 folder).
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data_in_RGB_after_preprocessing.zip: Contains processed RGB data in PNG format for each commutation timing (No_delay, 0.0001 sec, 0.005 sec, 0.01 sec) across the three Hall sensors (A, B, C). Files are similarly organized into folders, with all 0.0001 sec delay images stored in the 0.0001 folder.
