以模糊化關鍵績效指標應用於監控焚化廠之操作環境

Abstract

本研究係與新鼎公司共同致力於提升焚化廠操作績效的改進工作。應用模糊集合作焚化爐操作關鍵績效指標之評估，透過模擬操作人員評估績效指標流程的方式，將操作人員的思考評估經驗予以量化，發展出了一套新的評量方式。 而在焚化廠中最容易發生工安意外的莫過於高溫高壓環境之鍋爐了，因此本研究利用文獻中提及的鍋爐模型，並在能量輸入方面加以改進，以模擬焚化廠的燃料－廢棄物的組成及熱值不穩定情況。還有也對研發出的鍋爐系統進行了各種開環的擾動，得到的結果也都合乎常理。而且於加裝各種控制策略之後，針對各種不同的案例作討論，也得到了不錯的結果。最後再與焚化爐操作之乏晰化關鍵績效指標互相結合，期待所得結果可供作監控焚化廠操作績效的重要參考。

This work aims to improve the estimation of key performance indices (KPIs) in incinerator with ACS Company. The fuzzy approach is adopted to estimate KPIs on the basis of expert experiences which are difficult to quantify. The information from work field is translated into membership function with fuzzy logic in order to reflect the operating performance. The most dangerous place in an incinerator is the boiler at high pressure and temperature. A nonlinear dynamic model for natural circulation drum-boilers which can describe the complicated shrink and swell phenomena is used. In the aspect of energy input, the simulation of Municipal solid waste (MSW) with unsteady heating value and component is performed. On the other hand, open-loop test is also carried out. Various control strategies are realized in a simple way and combined with fuzzy KPIs. The results show that the newly proposed method is superior to the existing one in estimating KPIs. To sum up, monitoring the incinerator with fuzzy KPIs can well reflect the operating condition, and, therefore, every unit can operate safely.