整合備用發電機與吸收式冰水主機之小型套裝式汽電共生系統最佳運轉排程與運轉效益研究

Optimal Operation Scheme for a Small Cogeneration System Promoted from a Emergency Standby System Combined with Absorption Chiller

王錫文(Shyi-Wen Wang)

《建國科大學報》 24卷1期 (2004/10) Pp. 135-149

https://doi.org/10.6995/JCTU.200410.0135

摘要

考量電力公司時間電價、用戶契約容量訂定、降低尖峰負載與燃料價格變化下，本研究應用最佳規劃技巧之分解與交替決策法則，開發完成吸收式冰水主機與備用發電機整合之小型套裝式汽電共生系統最佳運轉容量與決策之計算機程式。以容量100kW之燃氣引擎備用發電機，附加夾套熱水和排氣蒸汽之雙重熱回收系統，搭配50RT吸收式冰水主機整合而成之汽電共生發電系統，實際應用於醫院為示範場所。研究系統之最佳運轉排程、運轉效益及系統投資回收年限。應用結果顯示無論就用戶投資效益或整體電力系統降低尖峰負載而言，此整合系統值得大力推廣。

關鍵字

時間電價 ； 契約容量 ； 汽電共生系統 ； 最佳運轉容量與決策

並列摘要

A novel optimal operation scheme for a small cogeneration system that is promoted from an emergency standby system is introduced. Time-of-Use (TOU) tariff and various operational constrains are taken into account when evaluating the electricity cost and peak demand reductions. Based on a two-stage methodology and a modified mixed-integer programming technique, a novel algorithm is developed to solve the nonlinear optimization problem. A hospital is selected as a sample to demonstrate the correctness of the proposed algorithm. A 100kW gas engine standby generator is promoted to a sample cogenerator system by adding a 50RT absorption chiller and other necessary accessories. Optimal operation scheme, operation benefits and payback period on investment of this sample cogenerator system are analyzed. The simulation results indicate that promoting a emergency standby generator to a cogenerator system is profitable and should be encouraged.

並列關鍵字

Time-of-Use tariff ； Contract capacity ； Cogenerator system ； Optimal operation scheme