臺灣博碩士論文加值系統

依國際能源署分析，馬達及附屬動力設備約占全球終端用電量近半，面對迫切需要改善的環境議題，馬達節能技術被視為解決龐大能源消耗及能源浪費的重要解答之一。全球射出成型機年產量約八~十萬台，依動力系統區分為傳統油壓式、油電複合式與全電式射出成型機。射出成型機動力系統耗電量占總機台逾70%，為有效解決能源浪費問題，近年來設備生產業者紛紛主銷油電複合式與全電式節能機台。然而射出成型機使用壽命長達十年以上，因此整個塑膠製造產業仍舊存在大量傳統油壓式射出成型機。
由於傳統定頻定量油壓系統於工作過程中，需進行多次的能量轉換，造成動力系統效率表現不佳。本研究針對射出成型機動力系統進行解析，在不影響產能與品質的條件下，探討不同型式之節能動力系統方案差異。本研究所使用之射出成型機節能動力系統，整合伺服馬達驅動器、交流同步馬達、油壓迴路、控制迴路與系統保護，準確控制不同製程階段油壓工作參數，避免高壓溢流造成的能量損耗與油壓系統溫升狀況，經實驗證實，相較於傳統油壓式動力系統可有效減少能量損耗59%，提升射出成型機之動力系統效率。

According to the statistics of the International Energy Agency (IEA), about 50% of global electricity was consumed by motors and related power equipments. In face of the urgent environmental issues, motor energy-saving technology is considered as one of the solutions to resolve global energy consumption and loss. There were 80,000 to 100,000 injection molding machines produced around the world. In the light of power systems, the machines can be divided into three types such as hydraulic, hybrid, and all-electric. More than 70% of electricity is consumed by the power system for injection molding machine. In order to use energy efficiently, most suppliers primarily manufacture and sell either hybrid or all-electric types in recent years. An injection molding machine can operate for more than 10 years; therefore, a lot of traditional hydraulic injection molding machines still exist in the plastic-manufacturing industry.
Traditional hydraulic machines use mains electricity and fixed-displacement pumps. During the working procedures, energy of the power system goes through multiple transformations, and this results in low efficiency. This research analyzes the power systems of injection molding machines in detail and investigates different types of energy-saving power systems under the same productivity and quality conditions. The energy-saving power system designed in this thesis is integrated including servo-motor driver, AC synchronous motor, oil circuits, control circuits and system protection. The system can accurately control hydraulic parameters in different process stages. Therefore, the system can avoid the situations of energy loss and oil temperature rise caused by high pressure oil drain. From experimental analysis, the energy-saving power system can save about 59% of energy compared to the power system of the traditional hydraulic machine.

摘要I
AbstractII
誌謝III
目錄IV
圖目錄VI
表目錄X
第一章 緒論1
1.1 前言1
1.2 研究動機與文獻回顧 2
1.3 論文架構5
第二章 塑膠射出成型機介紹 6
2.1 塑膠材料特性6
2.2 塑膠射出成型機性能分類9
2.3 成型原理與耗電量分佈9
2.4 行程分析11
2.5 射出成型耗能數學模型16
第三章 節能油壓動力系統20
3.1 油壓系統介紹20
3.1.1 液壓油21
3.1.2 油壓泵24
3.2 塑膠射出機節能油壓動力系統探討26
3.2.1 定頻定量油壓動力系統27
3.2.2 定頻變量節能動力系統28
3.2.3 變頻定量節能動力系統30
3.2.4 油壓伺服定量動力系統31
3.3 電磁干擾防制34
3.3.1 接地對策34
3.3.2 屏蔽對策37
3.3.3 濾波對策38
第四章 實驗架構與結果討論 39
4.1 實驗系統架構39
4.2 實驗一:定頻定量動力系統加載試驗42
4.3 實驗二:變頻定量動力系統加載試驗45
4.4 實驗三:伺服定量動力系統加載試驗49
4.5 實驗討論53
第五章 結綸與未來研究建議 55
5.1 結論55
5.2 未來研究建議55
參考文獻56

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