好的生產系統不但可以增加有效產出，同時也可以降低在製品庫存與生產週期時間。CONWIP (Constant Work-In-Process) 為一結合推式與拉式運作邏輯的生產系統，為基於傳統拉式 JIT 看板系統，針對製造系統中控管在製品數量加以延伸，同時兼具推式與拉式系統之優點。
本研究使用CONWIP 系統應用在近年來成長快速的太陽能產業，使用離散型動態系統模擬方式，探討過去生產模式及 CONWIP 生產模式對在製品與生產週期的影響，其研究結果證明 CONWIP 系統可為結合 Job Shop 與 Flow Shop 生產方式的太陽能電池與模組生產系統帶來更佳的營運績效，其電池製造週期時間約可改善 50%， 降低電池工廠內的在製品數量及庫存成本，讓公司現金水位增加。

A good production system is not only helpful for increasing the Throughput but also reducing the Work-in-Process (WIP) and Cycle Time. CONWIP (Constant Work-In-Process) production system is a production structure based on the traditional JIT pull system and integrated with the logics of Push system and Pull system. It focuses on the control of WIP level and contains the advantages of both systems.
In this research, we applied CONWIP to the fast growing-up solar industry, and used the discrete simulation method to study the influences of CONWIP and past production system on WIP and Cycle Time. The result shows that CONWIP is beneficial for the solar production which combines job shop and flow shop scheduling production. The cycle time of cell process is improved by 50% and the amount of WIP is reduced, such that the company’s cash level can be improved.

摘要 i
ABSTRACT ii
致謝 iii
目錄 iv
圖目錄 vi
表目錄 viii
第一章 緒論 1
1.1 研究背景與動機 1
1.2 研究目的 2
1.3 研究限制與範圍 3
1.4 研究步驟 3
第二章 文獻探討 5
2.1 太陽能產業特性 5
2.1.1 太陽能電池製程簡介 7
2.1.2 太陽能模組製程簡介 8
2.2 推式與拉式生產系統 10
2.2.1 推式生產系統 10
2.2.2 拉式生產系統 11
2.3 CONWIP (Constant Work-In-Process)生產系統機制 12
2.4 Multi-Loop CONWIP生產系統機制 15
2.5 動態系統模擬 18
第三章 研究方法 19
3.1 研究架構 19
3.2 研究假設 20
3.3 研究對象 21
3.4 研究工具 21
3.5 資料收集及建模程序 22
3.6 CONWIP 系統觸發邏輯說明 23
3.7 衡量指標 24
第四章 模擬結果分析與探討 25
4.1 不考慮設備當機狀況下CONWIP vs Push 模擬結果比較 25
4.2 考慮設備故障率後CONWIP vs Push 模擬結果比較 29
4.3 考慮故障率後 CONWIP vs Multi-Loop CONWIP 33
4.4 模擬總結 37
第五章 結論與建議 38
5.1 結論 38
5.2 未來研究方向與建議 39
參考文獻 40

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