四川大發(fā)SF120-206500型水輪發(fā)電機(jī)電磁設(shè)計(jì)

電氣工程論文編號(hào):DQ254   論文字?jǐn)?shù):19255,頁(yè)數(shù):56 

目錄
摘要 I
Abstract II

第1章 緒論 1
1.1 概述 1
1.2 課題簡(jiǎn)介 2
1.3 發(fā)展趨勢(shì) 3
1.4 基本工作原理 4
1.5 給定額定數(shù)據(jù) 5
1.6 研究方案 5
第2章 電磁計(jì)算的基本理論 6
2.1 定子鐵心內(nèi)徑和鐵心長(zhǎng)度的選擇 6
2.2 極距的選擇 6
2.3 定子鐵心長(zhǎng)度的選擇 7
2.4 定子繞組形式的選擇 7
2.5 定子槽數(shù)的選擇 8
2.6 定子繞組接線 9
2.7 定子槽形 10
2.8 電負(fù)荷的選擇 11
2.9 定子槽形尺寸及槽數(shù) 12
2.10 外型尺寸的估算 13
2.11 隙長(zhǎng)度選擇 13
2.12 磁極鐵心各部尺寸的選擇 15
2.13 阻尼繞組尺寸的選擇 16
2.14 勵(lì)磁繞組尺寸的選擇 18
2.15 磁路計(jì)算 19
2.16 負(fù)載磁動(dòng)勢(shì)計(jì)算 21
2.17 參數(shù)及時(shí)間常數(shù) 22
2.18 損耗與效率 22
第3章 電磁計(jì)算 25
3.1 基本數(shù)據(jù) 25
3.1.1 額定數(shù)據(jù) 25
3.1.2 定子繞組數(shù)據(jù) 26
3.1.3 勵(lì)磁繞組及阻尼繞組數(shù)據(jù) 27
3.2 空載磁勢(shì)計(jì)算 28
3.2.1 磁路尺寸 28
3.2.2 空載特性計(jì)算 29
3.3 電抗和時(shí)間常數(shù)的計(jì)算 32
3.4 負(fù)載磁勢(shì)計(jì)算 36
3.4.1 短路和額定千伏安時(shí)磁勢(shì)的計(jì)算 36
3.5 勵(lì)磁數(shù)據(jù) 37
3.6 損耗和效率 38
3.7 溫升計(jì)算 41
3.8 經(jīng)濟(jì)指標(biāo) 42
第4章 電磁方案的比較分析 44
4.1 對(duì)比方案 44
4.2 方案對(duì)比 44
4.3 幾種方案對(duì)比分析 46
4.4 方案對(duì)比總結(jié) 47
結(jié)論 48
致謝 49
參考文獻(xiàn) 50

摘要
 本課題對(duì)水輪發(fā)電機(jī)做了概括性的介紹，包括分類、工作原理、運(yùn)行狀態(tài)、相對(duì)于其他發(fā)電機(jī)的優(yōu)點(diǎn)等，對(duì)水輪發(fā)電機(jī)的基本結(jié)構(gòu)和運(yùn)行性能有了一定的了解。隨著大型水輪發(fā)電機(jī)在各個(gè)領(lǐng)域的應(yīng)用越來(lái)越廣泛，關(guān)于水輪發(fā)電機(jī)的優(yōu)化成為一個(gè)非常熱門的話題，因此電磁設(shè)計(jì)就顯得尤為重要。本研究課題結(jié)合四川大發(fā)電站12萬(wàn)千瓦水輪發(fā)電機(jī)的電磁算例，對(duì)電磁設(shè)計(jì)進(jìn)行更深一步的研究。通過(guò)改變單一變量的方式，通過(guò)對(duì)氣隙的長(zhǎng)度、定子鐵心內(nèi)外圓半徑、鐵心長(zhǎng)度、電負(fù)荷大小的調(diào)節(jié)對(duì)電磁設(shè)計(jì)方案進(jìn)行研究分析，比較了各種方案中各個(gè)參數(shù)的變化對(duì)水輪發(fā)電機(jī)的結(jié)構(gòu)尺寸、銅鐵材料用量、性能、效率、飛輪力矩、電壓調(diào)整率和過(guò)載能力等的影響，總結(jié)了各種方案的優(yōu)缺點(diǎn)，從而得出了最合理的設(shè)計(jì)方案。通過(guò)本次研究計(jì)算，得出了調(diào)整采用不同參數(shù)的各種方案，并進(jìn)行對(duì)比研究，這項(xiàng)研究有利于提升和改良大型水輪發(fā)電機(jī)的工作性能，為水輪發(fā)電機(jī)初步設(shè)計(jì)時(shí)的數(shù)據(jù)選擇提供了較好的參考，進(jìn)而為得出最佳優(yōu)化方案提供了依據(jù)。
 
 
關(guān)鍵詞　水輪發(fā)電機(jī)；電磁設(shè)計(jì)；優(yōu)化方案
Sichuan dafa SF120-20/6500 type generator electromagnetic design
Abstract
The subject of the generator made a brief introduction, including classification, working principles, operation status, relative to other advantages such as generators, the basic structure of the generator and operating performance has some understanding. With the large-scale hydro in various fields has been widely applied on the hydro optimization will be a very hot topic, so electromagnetic design is especially important. This research project combined 120,000 kilowatts in Sichuan hydro power station electromagnetic example, the electromagnetic design of the further investigation. By changing a single variable of the way through the length of the air gap, stator core and outside radius, core length, adjust the size of electrical load on the electromagnetic design study analyzed and compared the various programs in various parameters on the water wheel power machine structure size, metallurgy and materials consumption, performance, efficiency, flywheel torque, voltage regulation and overload to the effects, summed up the advantages and disadvantages of various options to arrive at the most reasonable design. Through this time is calculated using the adjustment obtained using different parameters of various programs, and conduct comparative studies, this study has to upgrade and improve Daxing Li Yu's Gongzuoxingneng Generator, Wei 水輪發(fā)電機(jī) Chubusheji when the Shu Ju choose to provide a better reference, which in turn provides the optimum basis for optimization programs.

Keywords　 Generator; electromagnetic design; optimization program
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