臺灣博碩士論文加值系統

本論文主要在研究石化廠電力系統的動態特性。論文中以一個簡化大型石化廠的電力系統作為模擬的架構，該系統組件包括汽輪機與調速系統、同步發電機與激磁系統、三相變壓器、以及靜態負載等。研究方法為先推導系統組件的數學模型，接著利用SIMULINK與SimPowerSystems開發模組，然後將這些模組依系統架構連接，最後進行動態特性模擬及分析。為了讓研究與實際更接近，本論文針對此系統在與市電併聯運轉以及獨立運轉情況下，分別做了四種不同的運轉模式模擬。模擬結果顯示，在這些運轉模式下，該系統的動態特性都是可以接受的，亦即，模擬結果與預期一致，並且可推論的，應可和實際運轉情形一致。本研究的結果也可做為石化廠電力系統規劃、運轉以及擴充的重要參考。

This thesis presents the dynamic behavior of the power system for petrochemical plant. A simplified power system configuration was applied to this study. The models of the system components included steam turbine prime mover model, governor system model, excitation system model, synchronous generator model, three-phase power transformer model, and static load model. They were developed to cater for the dynamic behavior of the system using Simulink and SimPowerSystem. Various operational modes were simulated for the system, and the simulation results showed that the system operated acceptably under those conditions and should be coincident with practical operations. The dynamic behavior study for a petrochemical plant power system is essential for system planning, operation, and further expansion.

目錄


中文摘要
…………………………………………………………………………..…i
英文摘要 …………………………………………………………………………..… ii
誌謝 …………………………………………………………………………..… iii
目錄 …………………………………………………………………………… iv
圖目錄 …………………………………………………………………………..… vii
表目錄 …………………………………………………………………………..… ix
符號說明 …………………………………………………………………………... x

一、緒論………………………………………………………………………………. 1
1.1 研究背景及動機………………………………………………………… 1
1.2 文獻回顧………………………………………………………………… 2
1.3 論文架構………………………………………………………………… 2

二、石化廠電力系統…………………………………………………………… 3
2.1 簡化的石化廠電力系統架構…………………………………..………… 3
2.2 汽輪機與調速系統…………………..…………………………………… 3
2.2.1 汽輪機……………………………..……………………………………… 3
2.2.2 汽輪原動機模型……………..…………………………………………… 3
2.3 三相同步發電機模型…..………………………………………………… 6
2.4 激磁系統模型……..……………………………………………………… 7
2.5 三相變壓器模型…..……………………………………………………… 9
2.6 靜態負載模型…………………………………………………………… 10

三、SimPowerSystems模組開發與運用……………………………………………. 11
3.1 模擬軟體……………..…………………………………………………… 11
3.2 汽輪機與調速系統模組………………………………………………… 13
3.3 同步發電機模組……………..…………………………………………… 13
3.4 激磁系統模組…………………………………………………………… 15
3.5 三相變壓器模組………………………………………………………… 15
3.6 集總靜態負載模組……………………………………………………… 16

四、石化廠電力系統動態特性模擬………………………………………………… 18
4.1 與市電併聯運轉動態特性模擬…………………..……………………… 18
4.1.1 與市電併聯運轉模式一………………………………………………… 20
4.1.2 與市電併聯運轉模式二………………………………………………….. 20
4.1.3 與市電併聯運轉模式三……………….………………………………… 21
4.1.4 與市電併聯運轉模式四………………..………………………………… 22
4.1.5 評論……………………..………………………………………………… 23
4.2 獨立運轉動態特性模擬………………………..…………….………… 44
4.2.1 獨立運轉模式一………………………………..………………………… 46
4.2.2 獨立運轉模式二…………..……………………………………………… 46
4.2.3 獨立運轉模式三……………………………………………..…………… 47
4.2.4 獨立運轉模式四……………………………………………..…………… 48
4.2.5 評論……………………..………………………………………………… 48

五、結論與未來研究方向…………………………………………………………… 70
5.1 結論…………..…………………………………………………………… 70
5.2 未來研究方向..…………………………………………………………… 71
參考文獻 …………………………………………………………………………… 72
附錄 …………………………………………………………………………… 74

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