【摘要】：針對(duì)現(xiàn)有純電動(dòng)大巴驅(qū)動(dòng)用釹鐵硼永磁同步電動(dòng)機(jī)存在的高成本、電機(jī)高速失控時(shí)可能出現(xiàn)過壓風(fēng)險(xiǎn)的問題，本文提出采用一種鐵氧體永磁的永磁輔助式磁阻同步電動(dòng)機(jī)作為純電動(dòng)大巴驅(qū)動(dòng)電機(jī)，這種電機(jī)具有低成本、高轉(zhuǎn)矩密度、高安全性的優(yōu)點(diǎn)。 本文首先介紹了純電動(dòng)大巴及其驅(qū)動(dòng)電機(jī)的發(fā)展現(xiàn)狀，針對(duì)現(xiàn)有永磁同步驅(qū)動(dòng)電機(jī)的不足，提出利用永磁輔助式磁阻同步電動(dòng)機(jī)作為驅(qū)動(dòng)電機(jī)，并對(duì)永磁輔助式磁阻同步電動(dòng)機(jī)進(jìn)行了詳細(xì)介紹；其次對(duì)200kW永磁輔助式磁阻同步電動(dòng)機(jī)進(jìn)行了電磁設(shè)計(jì)，著重對(duì)四種不同轉(zhuǎn)子結(jié)構(gòu)、三種不同極槽配合以及多種不同定子繞組設(shè)計(jì)等方面進(jìn)行對(duì)比分析，確定了比較合適的電機(jī)結(jié)構(gòu)方案，并對(duì)轉(zhuǎn)子結(jié)構(gòu)中V形磁鋼張角與隔磁層張角進(jìn)行了進(jìn)一步優(yōu)化；針對(duì)純電動(dòng)大巴驅(qū)動(dòng)電機(jī)工作的復(fù)雜工況，建立了驅(qū)動(dòng)電機(jī)多領(lǐng)域聯(lián)合仿真，主要包括對(duì)電機(jī)不同工況時(shí)各部件，尤其是溫度敏感的材料進(jìn)行溫度場(chǎng)仿真以及保證轉(zhuǎn)子結(jié)構(gòu)安全的應(yīng)力場(chǎng)仿真，為轉(zhuǎn)子安全提供參考依據(jù)；利用Maxwell軟件計(jì)算出電機(jī)的交、直軸同步電感，利用RMxprt軟件自帶轉(zhuǎn)子結(jié)構(gòu)建立其本體等效模型，同時(shí)建立了Simplorer與Maxwell場(chǎng)路聯(lián)合仿真平臺(tái)進(jìn)行電機(jī)電動(dòng)狀態(tài)下聯(lián)合仿真；最后介紹了6kW永磁輔助式磁阻同步電動(dòng)機(jī)小樣機(jī)的電磁設(shè)計(jì)與試制過程，針對(duì)試制電機(jī)轉(zhuǎn)子的安全問題，，提出了改進(jìn)方案，并對(duì)改進(jìn)后電機(jī)進(jìn)行了仿真分析。
[Abstract]:The invention provides a permanent-magnet auxiliary reluctance synchronous motor with a ferrite permanent magnet as a pure electric bus driving motor, The motor has the advantages of low cost, high torque density and high safety. In this paper, the present situation of the pure electric bus and its driving motor is introduced in this paper. In view of the shortage of the existing permanent-magnet synchronous drive motor, a permanent-magnet auxiliary reluctance synchronous motor is used as the driving motor, and the permanent-magnet auxiliary reluctance synchronous motor is introduced in detail. In this paper, the electromagnetic design of a 200kW permanent-magnet auxiliary reluctance synchronous motor is carried out, and the comparison and analysis of four different rotor structures, three different pole slots and many different stator winding designs are analyzed, and the proper motor structure is determined. in that case of the case, the angle of the V-shaped magnetic steel in the rotor structure and the angle of the magnetic layer are further optimized, and the multi-field joint simulation of the drive motor is established for the complex working condition of the operation of the pure electric bus drive motor, The temperature field simulation of the component, especially the temperature-sensitive material, and the stress field simulation to ensure the safety of the rotor structure are simulated, and the reference basis is provided for the safety of the rotor; the alternating current and the direct-axis synchronous inductance of the motor are calculated by using the Maxwell software, and the body equivalent die is established by using the rotor structure of the RMxprt software In this paper, the combined simulation of Simplano and Maxwell field road joint simulation platform is established, and the electromagnetic design and trial production process of the small prototype of the 6kW permanent-magnet auxiliary reluctance synchronous motor are introduced, and the improvement party is put forward for the safety of the rotor of the trial-production motor. The case is simulated and the improved motor is simulated.
【學(xué)位授予單位】：湖北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM341

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本文編號(hào)：2449021