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,對凸極同步電動機異步起動的起動性能有所改善和勵磁繞組的控制設(shè)計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 凸極同步電動機采用異步起動,起動轉(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機的異步起動過程,建立了稀土永磁同步電動機起動時的數(shù)學(xué)模型,并對電磁轉(zhuǎn)矩的性質(zhì)進(jìn)行了研究,論文還提出了起動時電磁轉(zhuǎn)矩的計算方法,論文對稀土永磁同步電動機的牽入同步過程進(jìn)行了原理性分析,論文也對電機參數(shù)對于電機起動性能影響進(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機的基本運行原理,在分析了凸極同步電動機定、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機異步起動的過渡過程,提出了一種新型的凸極同步電動機異步起動過程中勵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機狀態(tài)方程,建立了凸極同步電動機異步起動過渡過程的數(shù)學(xué)模型。利用matlab仿真軟件建立凸極同步電動機異步起動仿真模型,通過仿真曲線分析、研究,證明本文提出的新型勵磁繞組控制方法的正確性,并通過分析傳統(tǒng)投勵方法的缺陷,提出了"定子電量法"實現(xiàn)凸極同步電動機最佳順極性投勵的方法。