The study in this thesis will provide reference in improving salient - pole synchronous motors " asynchronous starting capability and designing the control exciting winding scheme 本文所作的研究工作,對(duì)凸極同步電動(dòng)機(jī)異步起動(dòng)的起動(dòng)性能有所改善和勵(lì)磁繞組的控制設(shè)計(jì)方面的研究有一定的指導(dǎo)意義。
Because of its larger starting - torque , less accessorial device and simpler handle , there is a broad prospect using salient - pole synchronous motors with asynchronous starting in modern enterprises and factories 凸極同步電動(dòng)機(jī)采用異步起動(dòng),起動(dòng)轉(zhuǎn)矩大、附屬設(shè)備少、操作簡單,在現(xiàn)代工礦企業(yè)中有很好地應(yīng)用前景。
The two key parameters , back electromotive force ( emf ) and reactance of d q axial armature reaction are investigated , too . in the process of asynchronous starting , mathematics model of repmsm is established with 1 , 2 , 0 complex number coordinate system . combined with the model , electromagnetic torque is studied 論文還研究稀土永磁同步電動(dòng)機(jī)的異步起動(dòng)過程,建立了稀土永磁同步電動(dòng)機(jī)起動(dòng)時(shí)的數(shù)學(xué)模型,并對(duì)電磁轉(zhuǎn)矩的性質(zhì)進(jìn)行了研究,論文還提出了起動(dòng)時(shí)電磁轉(zhuǎn)矩的計(jì)算方法,論文對(duì)稀土永磁同步電動(dòng)機(jī)的牽入同步過程進(jìn)行了原理性分析,論文也對(duì)電機(jī)參數(shù)對(duì)于電機(jī)起動(dòng)性能影響進(jìn)行了研究。
In this thesis , the basic operation theory of salient - pole synchronous motors is discussed ( based on the analysis of the electromagnetic relationship among stator winding 、 rotor winding and damper winding , the transitional process of salient - pole synchronous motors ( asynchronous starting , the thesis provids a novel control method and connection of exciting winding during salient - pole synchronous motors ( asynchronous starting 本文論述了凸極同步電動(dòng)機(jī)的基本運(yùn)行原理,在分析了凸極同步電動(dòng)機(jī)定、轉(zhuǎn)子繞組及阻尼繞組的電磁關(guān)系的基礎(chǔ)上,研究了凸極同步電動(dòng)機(jī)異步起動(dòng)的過渡過程,提出了一種新型的凸極同步電動(dòng)機(jī)異步起動(dòng)過程中勵(lì)磁繞組控制方法和線路。
In this thesis , the mathematical model of transitional process is built up during salient - pole synchronous motors ( asynchronous starting based on the state equations under d - q frame , simulation model about asynchronous starting using matlab software is set up . it proves the novel exciting winding control way through analyzing and studying the simulation curves , and provides the best exciting in towards polarity way using " stator - electricity " during salient - pole synchronous motors ( asynchronous starting through analyzing the fault of traditional way to exciting 通過分析d q軸系下的凸極同步電動(dòng)機(jī)狀態(tài)方程,建立了凸極同步電動(dòng)機(jī)異步起動(dòng)過渡過程的數(shù)學(xué)模型。利用matlab仿真軟件建立凸極同步電動(dòng)機(jī)異步起動(dòng)仿真模型,通過仿真曲線分析、研究,證明本文提出的新型勵(lì)磁繞組控制方法的正確性,并通過分析傳統(tǒng)投勵(lì)方法的缺陷,提出了"定子電量法"實(shí)現(xiàn)凸極同步電動(dòng)機(jī)最佳順極性投勵(lì)的方法。