【摘要】：以鑄銅轉(zhuǎn)子技術(shù)代替?zhèn)鹘y(tǒng)鑄鋁轉(zhuǎn)子的高效、超高效異步電動(dòng)機(jī)的設(shè)計(jì)方法是當(dāng)下電機(jī)節(jié)能系統(tǒng)研究領(lǐng)域的熱點(diǎn)。針對(duì)鑄銅轉(zhuǎn)子異步電動(dòng)機(jī)的電磁、熱設(shè)計(jì)問題,本文首先綜述了國內(nèi)外鑄銅轉(zhuǎn)子異步電動(dòng)機(jī)電磁設(shè)計(jì)方法的研究現(xiàn)狀,總結(jié)了異步電動(dòng)機(jī)溫度場研究的相關(guān)資料。其次,探討了低諧波繞組技術(shù)在鑄銅轉(zhuǎn)子異步電動(dòng)機(jī)上的應(yīng)用優(yōu)勢(shì),并對(duì)比分析了不同轉(zhuǎn)子鑄造材料對(duì)電機(jī)性能的影響,從而確定了電機(jī)的基本電磁方案。針對(duì)鑄銅轉(zhuǎn)子異步電動(dòng)機(jī)啟動(dòng)性能弱的問題,對(duì)比分析了兩種不同轉(zhuǎn)子槽形各尺寸參數(shù)對(duì)電機(jī)啟動(dòng)性能的影響,優(yōu)化了鑄銅轉(zhuǎn)子異步電動(dòng)機(jī)的啟動(dòng)性能�？紤]到電機(jī)效率對(duì)電機(jī)溫度的敏感性以及電機(jī)溫度場分析計(jì)算的復(fù)雜性,本文詳細(xì)總結(jié)了空間等效熱路法的基本原理、基本模型及應(yīng)用方法,并基于有限元法計(jì)算了電機(jī)主要電磁部件的損耗。同時(shí),利用等效熱路法計(jì)算了鑄銅轉(zhuǎn)子異步電動(dòng)機(jī)的穩(wěn)態(tài)和瞬態(tài)溫度分布,并對(duì)電機(jī)主要散熱結(jié)構(gòu)的尺寸參數(shù)進(jìn)行了參數(shù)化分析,優(yōu)化了電機(jī)的散熱性能,改善了電機(jī)的散熱情況。最后,制造加工了實(shí)驗(yàn)樣機(jī),并對(duì)樣機(jī)進(jìn)行了初步測(cè)試。測(cè)試結(jié)果表明,本文所述的設(shè)計(jì)方法具有較高的精度,滿足實(shí)際工程需求,且電機(jī)各項(xiàng)性能參數(shù)均達(dá)到了高效異步電動(dòng)機(jī)標(biāo)準(zhǔn)的相關(guān)要求,取得了較好的結(jié)果。本文針對(duì)鑄銅轉(zhuǎn)子異步電動(dòng)機(jī)所開展的研究工作對(duì)高效異步電動(dòng)機(jī)的設(shè)計(jì)與研究均具有重要的參考價(jià)值。
[Abstract]:The design method of high efficiency and super high efficiency asynchronous motor with cast copper rotor technology instead of traditional cast aluminum rotor is a hot spot in the research field of motor energy saving system. Aiming at the electromagnetic and thermal design of the induction motor with cast copper rotor, this paper firstly summarizes the research status of electromagnetic design method of the asynchronous motor with cast copper rotor at home and abroad, and summarizes the relevant data of the temperature field research of the asynchronous motor. Secondly, the application advantage of low harmonic winding technology in cast copper rotor asynchronous motor is discussed, and the effect of different rotor casting materials on the motor performance is compared and analyzed, thus the basic electromagnetic scheme of the motor is determined. Aiming at the problem of weak starting performance of cast copper rotor asynchronous motor, the effects of two different rotor groove shape parameters on motor starting performance are compared and analyzed, and the starting performance of cast copper rotor asynchronous motor is optimized. Considering the sensitivity of motor efficiency to motor temperature and the complexity of analysis and calculation of motor temperature field, the basic principle, basic model and application method of space equivalent heat path method are summarized in this paper. The loss of the main electromagnetic components of the motor is calculated based on the finite element method. At the same time, the steady-state and transient temperature distributions of the induction motor with cast copper rotor are calculated by using the equivalent heat path method, and the parameters of the main heat dissipation structure of the motor are parameterized to optimize the heat dissipation performance of the motor. The heat dissipation of the motor is improved. Finally, the experimental prototype was manufactured and the prototype was preliminarily tested. The test results show that the design method presented in this paper has a high precision and meets the practical engineering requirements, and the performance parameters of the motor are up to the relevant requirements of the high efficiency asynchronous motor standard, and good results have been obtained. The research work carried out in this paper has important reference value for the design and research of high efficiency asynchronous motor.
【學(xué)位授予單位】：上海電機(jī)學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM343

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