目前於精密產業中使用空氣潔淨設備之風機濾網機組在灰塵堵塞情況時，須透過人工進行量測風速下降情況，且依照風速下降情況調整風機當前轉速，以維持出風口風量穩定。有鑑於此，本文主要目的為開發一風機濾網機組之驅控系統與監控系統。
本文利用風機運轉電流與其風速之間的關係，倘若灰塵堵塞於濾網上的情況逐漸增加，則會導致風機濾網機組之進風量以及出風量下降，進而造成風機運轉電流下降，利用此關係完成一風機驅控調速系統。其硬體架構以電機控制晶片、微控制器作為主要控制核心，並搭配控制周邊電路與零件等。在風機控制策略部分採用無感測器及電流閉迴路控制，以此完成風機之驅控系統部分。
基於上述之驅控系統，再加以開發出一套專屬的多執行緒之監控系統，透過此監控系統能實時掌握當前所監控之風機濾網機組，而在驅控系統與監控系統之間的傳輸格式為利用Modbus RTU傳輸協議做為發想，定義了新的傳輸格式，以便在本研究中完成驅控系統與監控系統之間的傳輸要求與多台聯控之功能。根據實測結果表示，各風機於各運轉模式下之電流誤差為0.73%、0.80%、1.73%與1.56%，整體平均誤差為1.21%，皆於合理範圍內，故本文所開發之驅控系統及監控系統具有實際的實用性與經濟性。

At present, when the fan filter unit of the air cleaning equipment used in the precision industry is blocked due to dust, the wind speed drop must be measured manually, and the current speed of the fan must be adjusted according to the wind speed drop to maintain a stable air flow at the air outlet. In view of this, the main purpose of this thesis is to develop a drive control system and a monitoring system for a fan filter unit.
This thesis uses the relationship between the operating current and wind speed of the fan. If the dust clogging on the filter gradually increases, it will cause the fan filter unit's air intake and air output to decrease, and then cause the fan's operating current to drop. Use this relationship to complete a fan drive and speed regulation system. It’s hardware architecture uses a motor control chip and a microcontroller as the main control core, and is matched to control peripheral circuits and parts. In the fan control strategy part, sensorless and current closed loop control are used to complete the fan drive control system part.
Based on the drive and control system, an exclusive multi-threaded monitoring system has been developed. Through the monitoring system, the fan filter unit currently being monitored can be grasped in real time. The signal transmission between the drive control system and the monitoring system are used the Modbus RTU transmission protocol define a new transmission format which accomplishes the transmission requirements between the drive control system and the monitoring system and can be applied of multi-unit joint control in this research.According to the actual measurement results, the current error of each fan in each operation mode is 0.73%, 0.80%, 1.73% and 1.56%, the overall average error is 1.21%, which are all within in a reasonable and acceptable range. Therefore, the drive control system and monitoring system developed in this research are practical and economical.

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