基於1/f漲落的自然風模擬的風扇控制實作

Implementation of Fan Control Based on Natural Wind Simulation with 1/f fluctuation

郭仰(YANG KUO) ； 巫竑達(HUNG-DA WU) ； 詹智皓(CHIH-HAO CHAN) ； 謝忠哲(CHUNG-CHE HSIEH) ； 郭雋(JIUN KUO)

《冷凍空調&能源科技》 131期 (2022/01) Pp. 28-32

https://doi.org/10.29911/JEHVACE_NEW.202201_(131).0002

摘要

一般風扇風速固定，長時間直吹常常帶來不適感，但是戶外陣陣吹來的徐徐自然和風卻是令人感覺舒暢。自然風風速的變化，在1Hz以下，在很多場合具有1/f漲落的特性。本專題之目的設計並實現一款以1/f漲落模式調整風量大小，來模擬自然風之風扇。

關鍵字

1/f漲落 ； 脈衝寬度調變 ； 占空比 ； 功率頻譜密度

並列摘要

Generally, the steady wind speed of the fan often brings discomfort when blowing directly for a long time, but the natural and gentle breeze blowing in the outdoors always makes people feel comfortable. The variation of natural wind speed below 1 Hz has characteristics of 1/f fluctuation in many cases. The purpose of this topic is to design and implement a fan that adjusts the wind speed based on natural wind simulation with 1/f fluctuation.

並列關鍵字

1/f fluctuation ； pulse width modulation ； duty cycle ； power spectral density

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