大型雙饋風(fēng)力發(fā)電機(jī)設(shè)計(jì)和制造工藝
發(fā)布時(shí)間：2019-05-07 10:53
【摘要】：隨著一系列優(yōu)惠政策的出臺和《可再生能源法》的頒布，我國風(fēng)電裝機(jī)容量已躍居世界第一，風(fēng)電相關(guān)行業(yè)步入了高速發(fā)展時(shí)期，形成較為完備的上下游產(chǎn)業(yè)鏈。目前，風(fēng)力發(fā)電機(jī)種類很多，其中占據(jù)主流的有兩種：雙饋風(fēng)力發(fā)電機(jī)和永磁同步發(fā)電機(jī)。雙饋風(fēng)力發(fā)電機(jī)因可靠性高、技術(shù)日臻完善，成為當(dāng)下風(fēng)力發(fā)電機(jī)組中應(yīng)用最多、裝機(jī)容量最大，風(fēng)電市場占有率最大的產(chǎn)品。然而，由于風(fēng)力發(fā)電機(jī)應(yīng)用場合特殊，維修成本極高以及市場競爭日益激烈，對風(fēng)力發(fā)電機(jī)的結(jié)構(gòu)設(shè)計(jì)和制造工藝要求越來越高。因此，為實(shí)現(xiàn)風(fēng)力發(fā)電機(jī)系列化產(chǎn)品高質(zhì)、高效開發(fā)與生產(chǎn)，不斷提升大型雙饋風(fēng)力發(fā)電機(jī)設(shè)計(jì)和制造工藝水平將具有重要的工程實(shí)際指導(dǎo)意義。為此，本文以1.5MW雙饋風(fēng)力發(fā)電機(jī)為研究對象，運(yùn)用電機(jī)設(shè)計(jì)與制造工藝基本理論和有限元分析等方法，探索雙饋風(fēng)力發(fā)電機(jī)結(jié)構(gòu)的解析與數(shù)值綜合設(shè)計(jì)方法和改進(jìn)傳統(tǒng)制造工藝的數(shù)控加工及裝夾方法，具體研究內(nèi)容如下： （1）綜述風(fēng)力發(fā)電、風(fēng)力發(fā)電機(jī)組主流技術(shù)、雙饋風(fēng)力發(fā)電機(jī)的國內(nèi)外研究現(xiàn)狀；并系統(tǒng)闡述了雙饋風(fēng)力發(fā)電機(jī)的基本工作原理，重點(diǎn)分析了該發(fā)電機(jī)的內(nèi)部電磁關(guān)系和功率特性關(guān)系，以及考慮超同步和亞同步兩種運(yùn)行狀態(tài)下的功率流向，為后續(xù)的設(shè)計(jì)分析奠定理論基礎(chǔ)。 （2）雙饋風(fēng)力發(fā)電機(jī)的綜合設(shè)計(jì)方法。分析雙饋風(fēng)力發(fā)電機(jī)的極數(shù)、氣隙長度和定轉(zhuǎn)子槽型等電磁參數(shù)的選擇方法，對轉(zhuǎn)子的強(qiáng)度進(jìn)行詳細(xì)解析計(jì)算；同時(shí)運(yùn)用ANSYS有限元軟件對轉(zhuǎn)子沖片與轉(zhuǎn)軸過盈配合、以及轉(zhuǎn)子強(qiáng)度進(jìn)行仿真分析，解析與數(shù)值計(jì)算結(jié)果對比分析確保發(fā)電機(jī)結(jié)構(gòu)設(shè)計(jì)可靠。 （3）雙饋風(fēng)力發(fā)電機(jī)的制造工藝改進(jìn)。在雙饋風(fēng)力發(fā)電機(jī)的傳統(tǒng)工藝設(shè)計(jì)基礎(chǔ)上，運(yùn)用數(shù)控設(shè)備建立改進(jìn)轉(zhuǎn)子線圈成型工藝的數(shù)控加工方法，同時(shí)建立發(fā)電機(jī)定子的翻身及吊裝獨(dú)特改進(jìn)工藝，確保生產(chǎn)高質(zhì)、高效。 綜上，本文的設(shè)計(jì)分析為1.5MW雙饋風(fēng)力發(fā)電機(jī)的結(jié)構(gòu)設(shè)計(jì)及制造工藝水平提升提供有效途徑，，對大型同類發(fā)電機(jī)的開發(fā)應(yīng)用亦具重要參考價(jià)值。
[Abstract]:With the introduction of a series of preferential policies and the promulgation of the Renewable Energy Law, the installed capacity of wind power in China has leapt to the top of the world, and wind power-related industries have entered a period of high-speed development, forming a relatively complete upstream and downstream industrial chain. At present, there are many kinds of wind turbines, among which there are two main types: doubly-fed wind generators and permanent magnet synchronous generators. Due to its high reliability and perfect technology, doubly-fed wind power generator has become the most widely used, installed capacity and the largest market share of wind power generation. However, due to the special applications of wind turbines, high maintenance costs and increasingly fierce market competition, the requirements for structural design and manufacturing process of wind turbines are becoming higher and higher. Therefore, in order to realize the high-quality, high-efficiency development and production of series products of wind turbines, it is of great significance to improve the design and manufacturing process level of large-scale doubly-fed wind turbines. Therefore, this paper takes 1.5MW doubly-fed wind generator as the research object, uses the basic theory of motor design and manufacture technology and finite element analysis, etc. The analytical and numerical integrated design method of doubly-fed wind generator structure and the numerical control machining and clamping method for improving traditional manufacturing process are explored. The specific research contents are as follows: (1) the main technologies of wind power generation and wind turbine are summarized, and the main technologies of wind power generation and wind turbine are summarized. The research status of doubly-fed wind generator at home and abroad; The basic working principle of doubly-fed wind generator is systematically described, and the internal electromagnetic relation and power characteristic relation of the generator are emphatically analyzed, and the power flow direction under the conditions of super-synchronous and sub-synchronous operation is also considered. It lays a theoretical foundation for the follow-up design analysis. (2) Comprehensive design method of doubly-fed wind generator. The selection methods of electromagnetic parameters such as pole number, air gap length and slot shape of doubly-fed wind generator are analyzed, and the strength of rotor is calculated in detail. At the same time, the ANSYS finite element software is used to simulate and analyze the interference fit between the rotor punch and the rotor shaft, and the strength of the rotor. The analytical and numerical results are compared to ensure the reliability of the generator structure design. (3) the manufacturing process of doubly-fed wind generator is improved. Based on the traditional process design of doubly-fed wind generator, the NC machining method for improving the forming process of rotor coil is established by using numerical control equipment. At the same time, the unique improvement process of generator stator turning over and hoisting is established to ensure the high quality and high efficiency of production. In summary, the design and analysis of this paper provide an effective way to improve the structure design and manufacturing process level of 1.5MW doubly-fed wind generator, and also have important reference value for the development and application of large-scale similar generators.
【學(xué)位授予單位】：湘潭大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM315
本文編號：2471016
[Abstract]:With the introduction of a series of preferential policies and the promulgation of the Renewable Energy Law, the installed capacity of wind power in China has leapt to the top of the world, and wind power-related industries have entered a period of high-speed development, forming a relatively complete upstream and downstream industrial chain. At present, there are many kinds of wind turbines, among which there are two main types: doubly-fed wind generators and permanent magnet synchronous generators. Due to its high reliability and perfect technology, doubly-fed wind power generator has become the most widely used, installed capacity and the largest market share of wind power generation. However, due to the special applications of wind turbines, high maintenance costs and increasingly fierce market competition, the requirements for structural design and manufacturing process of wind turbines are becoming higher and higher. Therefore, in order to realize the high-quality, high-efficiency development and production of series products of wind turbines, it is of great significance to improve the design and manufacturing process level of large-scale doubly-fed wind turbines. Therefore, this paper takes 1.5MW doubly-fed wind generator as the research object, uses the basic theory of motor design and manufacture technology and finite element analysis, etc. The analytical and numerical integrated design method of doubly-fed wind generator structure and the numerical control machining and clamping method for improving traditional manufacturing process are explored. The specific research contents are as follows: (1) the main technologies of wind power generation and wind turbine are summarized, and the main technologies of wind power generation and wind turbine are summarized. The research status of doubly-fed wind generator at home and abroad; The basic working principle of doubly-fed wind generator is systematically described, and the internal electromagnetic relation and power characteristic relation of the generator are emphatically analyzed, and the power flow direction under the conditions of super-synchronous and sub-synchronous operation is also considered. It lays a theoretical foundation for the follow-up design analysis. (2) Comprehensive design method of doubly-fed wind generator. The selection methods of electromagnetic parameters such as pole number, air gap length and slot shape of doubly-fed wind generator are analyzed, and the strength of rotor is calculated in detail. At the same time, the ANSYS finite element software is used to simulate and analyze the interference fit between the rotor punch and the rotor shaft, and the strength of the rotor. The analytical and numerical results are compared to ensure the reliability of the generator structure design. (3) the manufacturing process of doubly-fed wind generator is improved. Based on the traditional process design of doubly-fed wind generator, the NC machining method for improving the forming process of rotor coil is established by using numerical control equipment. At the same time, the unique improvement process of generator stator turning over and hoisting is established to ensure the high quality and high efficiency of production. In summary, the design and analysis of this paper provide an effective way to improve the structure design and manufacturing process level of 1.5MW doubly-fed wind generator, and also have important reference value for the development and application of large-scale similar generators.
【學(xué)位授予單位】：湘潭大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM315
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