【摘要】：全球能源問題和世界環(huán)境問題日益嚴(yán)峻,發(fā)展新能源勢在必行,新能源汽車尤為重要。在電動(dòng)汽車驅(qū)動(dòng)電機(jī)中,永磁同步電動(dòng)機(jī)受到廣泛的青睞,其優(yōu)點(diǎn)很多,如高效率、體積小、低損耗、高功率密度等。永磁電動(dòng)機(jī)作為電動(dòng)汽車驅(qū)動(dòng)系統(tǒng)的核心部件,其性能的優(yōu)良直接影響了整輛車的運(yùn)行性能。因此,精心設(shè)計(jì)電動(dòng)機(jī)的性能,制造出性能優(yōu)良的永磁同步電動(dòng)機(jī)具有重要的現(xiàn)實(shí)意義和應(yīng)用價(jià)值。本文比較詳細(xì)地探討了電動(dòng)汽車用永磁同步電動(dòng)機(jī)的設(shè)計(jì)方案,其中包括永磁電機(jī)的設(shè)計(jì)方法、性能分析、有限元仿真、參數(shù)優(yōu)化等。首先,本文描述了課題的背景與研究意義,綜合描述了車用驅(qū)動(dòng)電動(dòng)機(jī)在國內(nèi)以及國外的研究發(fā)展?fàn)顟B(tài),列出了車用永磁同步電動(dòng)機(jī)的一些研究性關(guān)鍵技術(shù)研究和發(fā)展現(xiàn)狀,同時(shí)也介紹了實(shí)現(xiàn)寬范圍調(diào)速的弱磁性能及實(shí)現(xiàn)弱磁的一些方法的研究現(xiàn)狀。接著,根據(jù)前章節(jié)的敘述,設(shè)計(jì)一臺(tái)30kW的電動(dòng)汽車用永磁同步電動(dòng)機(jī)。通過對(duì)電機(jī)主要尺寸、氣隙長度、極槽配合等參數(shù)的對(duì)比分析作出選擇,設(shè)計(jì)出一臺(tái)符合設(shè)計(jì)要求的寬調(diào)速范圍的永磁電動(dòng)機(jī)。然后,本文結(jié)合電動(dòng)汽車的結(jié)構(gòu)特點(diǎn)的要求,得出了本文弱磁研究的理論和分析觀點(diǎn)依據(jù),分析永磁電機(jī)實(shí)現(xiàn)弱磁的方法,找出電機(jī)中影響弱磁的參數(shù),從三個(gè)方面入手總結(jié)歸納。從永磁鐵的簡介開始,分析永磁體的厚度和寬度對(duì)電機(jī)的弱磁的影響。接下來分析氣隙長度對(duì)電動(dòng)汽車用永磁同步電機(jī)弱磁性能的影響,最后分析極弧系數(shù)對(duì)電機(jī)弱磁性能的影響�？偨Y(jié)分析影響永磁電機(jī)弱磁性能的參數(shù),得出最優(yōu)弱磁方法。最后,對(duì)轉(zhuǎn)子磁路結(jié)構(gòu)進(jìn)行對(duì)比分析。通過分析三種轉(zhuǎn)子,對(duì)比其氣隙磁密、齒槽轉(zhuǎn)矩等參數(shù),得出適合電動(dòng)汽車的磁路結(jié)構(gòu)。從電機(jī)轉(zhuǎn)子兩個(gè)方面進(jìn)行優(yōu)化分析,首先討論永磁同步電機(jī)的轉(zhuǎn)子中永磁體分段對(duì)電機(jī)性能和電機(jī)弱磁能力的影響,對(duì)比分段前后電機(jī)各項(xiàng)參數(shù)及性能指標(biāo),總結(jié)永磁體分段對(duì)電機(jī)的影響;隨后對(duì)電機(jī)永磁體之間的夾角進(jìn)行調(diào)整,對(duì)比不同夾角的電機(jī)的各項(xiàng)性能參數(shù),得出有利于弱磁的永磁體夾角。
[Abstract]:The global energy problem and the world environmental problem are becoming more and more serious, it is imperative to develop new energy, new energy automobile is especially important. Permanent magnet synchronous motor (PMSM) is widely used in electric vehicle (EV) drive motor, which has many advantages, such as high efficiency, small size, low loss, high power density and so on. As the core component of electric vehicle drive system, permanent magnet motor (PMSM) has a direct impact on the performance of the whole vehicle because of its excellent performance. Therefore, it has important practical significance and application value to carefully design the performance of permanent magnet synchronous motor (PMSM) and to produce a permanent magnet synchronous motor (PMSM) with excellent performance. In this paper, the design scheme of permanent magnet synchronous motor for electric vehicle is discussed in detail, including the design method of permanent magnet motor, performance analysis, finite element simulation, parameter optimization and so on. First of all, this paper describes the background and significance of the subject, comprehensively describes the research and development status of vehicle driving motor both at home and abroad, and lists some research key technologies and development status of vehicle permanent magnet synchronous motor (PMSM). At the same time, it also introduces the weak magnetic performance of realizing wide range speed regulation and the research status of some methods of realizing weak magnetic field. Then, according to the previous chapter, a permanent magnet synchronous motor (PMSM) for 30kW electric vehicle is designed. By comparing and analyzing the main dimensions, air gap length, pole slot fit and other parameters of the motor, a permanent magnet motor with wide speed regulation range is designed. Then, according to the structural characteristics of electric vehicle, the paper gives the theory and analysis basis of the weak magnetic field research in this paper, analyzes the method of realizing the weak magnetic field of the permanent magnet motor, and finds out the parameters that affect the weak magnetic field in the motor. From three aspects to sum up. The influence of the thickness and width of the permanent magnet on the weak magnetic field of the motor is analyzed from the brief introduction of the permanent magnet. Then the influence of air gap length on the weak magnetic performance of permanent magnet synchronous motor used in electric vehicle is analyzed. Finally, the influence of pole arc coefficient on the weak magnetic performance of electric vehicle is analyzed. The parameters affecting the magnetic weakening performance of permanent magnet motor are summarized and analyzed, and the optimal weak magnetic field method is obtained. Finally, the structure of rotor magnetic circuit is compared and analyzed. By analyzing three kinds of rotors, the magnetic circuit structure suitable for electric vehicle is obtained by comparing the parameters of air gap magnetic density and tooth groove torque. From two aspects of motor rotor optimization analysis, this paper first discusses the influence of permanent magnet segment on motor performance and motor weak magnetic ability in permanent magnet synchronous motor rotor, and compares the parameters and performance indexes of motor before and after segment. The influence of the permanent magnet segment on the motor is summarized, and then the angle between the permanent magnets is adjusted to compare the various performance parameters of the motor with different angles, and the angle of the permanent magnet is obtained in favor of the weak magnetic field.
【學(xué)位授予單位】：沈陽工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TM341;U469.72

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 劉志蒙;;淺析純電動(dòng)卡車技術(shù)及其未來發(fā)展[J];科技資訊;2016年19期

2 曲榮海;秦川;;電動(dòng)汽車及其驅(qū)動(dòng)電機(jī)發(fā)展現(xiàn)狀與展望[J];南方電網(wǎng)技術(shù);2016年03期

3 張涵;謝寶昌;丁p苊，

本文編號(hào)：2282955