A dynamic adjustment method for controlling a brushless motor fan by a control board

By collecting and analyzing fan data in real time, the voltage and frequency of the brushless motor fan are dynamically adjusted, solving the problem of mismatch between voltage output and frequency regulation in existing technologies, and realizing stable operation and efficient energy utilization of the fan equipment under complex working conditions.

CN122292950APending Publication Date: 2026-06-26GUANGDONG SHANGPING INTELLIGENT ELECTRICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG SHANGPING INTELLIGENT ELECTRICAL CO LTD
Filing Date
2026-04-10
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing brushless motor fan control technology cannot dynamically adjust voltage output and frequency regulation under complex operating conditions, resulting in energy waste and power grid quality problems, especially in maintaining equipment stability when the load fluctuates.

Method used

By collecting load fluctuation and current waveform data in real time through sensors, performing signal processing and filtering analysis, calculating voltage adjustment values ​​and switching frequency parameters, generating dynamic adjustment commands, and optimizing the operating parameters of the control board to match power grid quality and system efficiency.

Benefits of technology

It effectively suppresses current distortion, improves the stable operation of wind turbine equipment in complex environments, achieves synergistic optimization of mechanical and electrical responses, and ensures power grid quality and system efficiency.

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Abstract

This application provides a dynamic adjustment method for controlling a brushless motor fan via a control board, comprising: collecting operating data of the fan equipment through sensors, the operating data including at least load fluctuation data and current waveform data; performing signal processing on the operating data to obtain filtered load fluctuation trend and current distortion index; calculating a voltage adjustment value based on the load fluctuation trend and the current distortion index to determine a preliminary voltage output level; evaluating the matching degree between the preliminary voltage output level and the switching frequency to obtain a matching degree evaluation result; if the matching degree evaluation result does not meet preset requirements, adjusting the switching frequency parameters to obtain optimized switching frequency parameters; monitoring the suppression effect of the dynamic voltage output value on current distortion, and confirming the validity of the dynamic voltage output value if preset conditions are met.
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