本文選題：對(duì)轉(zhuǎn)雙轉(zhuǎn)子電機(jī) + 電磁場(chǎng)分析�。� 參考：《華南理工大學(xué)》2014年碩士論文

【摘要】：驅(qū)動(dòng)電機(jī)是電動(dòng)汽車的心臟，其設(shè)計(jì)合理與否直接影響電動(dòng)汽車的性能。因此，驅(qū)動(dòng)電機(jī)技術(shù)一直被視為電動(dòng)汽車的關(guān)鍵技術(shù)之一，受到世界各國(guó)研究者的重視。對(duì)轉(zhuǎn)雙轉(zhuǎn)子電機(jī)是一種新型的電機(jī)，它具有兩個(gè)相互反向旋轉(zhuǎn)的機(jī)械軸，可以同時(shí)從兩軸輸出動(dòng)力，因而理論上較傳統(tǒng)電機(jī)具備更高的功率密度，適合用作電動(dòng)汽車驅(qū)動(dòng)電機(jī)。此外，只要經(jīng)過合理的減速（變向），對(duì)轉(zhuǎn)雙轉(zhuǎn)子電機(jī)就可以直接驅(qū)動(dòng)車輪，這樣可以省去傳統(tǒng)驅(qū)動(dòng)橋中的機(jī)械差速器，使驅(qū)動(dòng)橋結(jié)構(gòu)更簡(jiǎn)單。本文根據(jù)一套具有自主知識(shí)產(chǎn)權(quán)的油-電混合動(dòng)力汽車的多橋驅(qū)動(dòng)系統(tǒng)方案，進(jìn)行了行星齒輪減速對(duì)轉(zhuǎn)雙轉(zhuǎn)子電機(jī)的設(shè)計(jì)及穩(wěn)定性研究工作。論文的主要工作如下： （1）根據(jù)課題項(xiàng)目給定的技術(shù)指標(biāo)，確定雙轉(zhuǎn)子電機(jī)和行星減速器的基本參數(shù)，并完成行星減速器的配齒設(shè)計(jì)。接著進(jìn)行雙轉(zhuǎn)子電機(jī)和行星減速器的初步結(jié)構(gòu)設(shè)計(jì)。 （2）在Ansoft/Maxwell軟件環(huán)境下建立對(duì)轉(zhuǎn)雙轉(zhuǎn)子電機(jī)的二維電磁場(chǎng)有限元分析模型，并分別進(jìn)行電機(jī)空載、滿載、過載工況以及齒槽轉(zhuǎn)矩分析，，驗(yàn)證電機(jī)的各項(xiàng)電磁性能。仿真結(jié)果表明該雙轉(zhuǎn)子電機(jī)的設(shè)計(jì)比較合理，能滿足設(shè)計(jì)技術(shù)指標(biāo)。 （3）利用Ansoft/Maxwell軟件分析了內(nèi)轉(zhuǎn)子鐵芯設(shè)計(jì)域外邊界尺寸對(duì)氣隙平均磁密、磁橋處平均磁密、平均電磁轉(zhuǎn)矩和內(nèi)轉(zhuǎn)子鐵芯渦流損耗等關(guān)鍵電磁性能參數(shù)的影響，確定了內(nèi)轉(zhuǎn)子鐵芯結(jié)構(gòu)優(yōu)化的邊界尺寸。運(yùn)用Hyperworks/Optistruct軟件分別對(duì)內(nèi)轉(zhuǎn)子鐵芯以及減速器關(guān)鍵零件進(jìn)行應(yīng)力約束下的拓?fù)鋬?yōu)化。優(yōu)化后，內(nèi)轉(zhuǎn)子鐵芯減重20.68%，減速器零件平均減重30%以上。最后根據(jù)結(jié)構(gòu)優(yōu)化結(jié)果修改圖紙，進(jìn)行功能樣機(jī)試制。 （4）根據(jù)小信號(hào)法，分別進(jìn)行對(duì)轉(zhuǎn)雙轉(zhuǎn)子電機(jī)在開環(huán)和閉環(huán)（包括在恒轉(zhuǎn)矩區(qū)及弱磁擴(kuò)速區(qū)下）的穩(wěn)定性分析。結(jié)果顯示對(duì)轉(zhuǎn)雙轉(zhuǎn)子電機(jī)在開環(huán)狀態(tài)下存在不穩(wěn)定的工作點(diǎn)，然而采取一定的閉環(huán)控制方案可以使電機(jī)始終保持穩(wěn)定。利用Matlab/Simulink軟件進(jìn)行雙轉(zhuǎn)子電機(jī)的開環(huán)及閉環(huán)仿真，驗(yàn)證了分析結(jié)果。計(jì)算系統(tǒng)矩陣特征值的靈敏度，闡述了在不同控制模式下系統(tǒng)參數(shù)對(duì)穩(wěn)定性的影響。 （5）對(duì)功能樣機(jī)進(jìn)行臺(tái)架試驗(yàn)，測(cè)試系統(tǒng)空載特性與部分負(fù)載特性。
[Abstract]:Drive motor is the heart of electric vehicle, its design is reasonable or not directly affect the performance of electric vehicle. Therefore, driving motor technology has been regarded as one of the key technologies of electric vehicles, and has been paid attention to by researchers all over the world. Dual rotor motor is a new type of motor. It has two opposite rotating mechanical shafts, which can output power from two axes at the same time. Therefore, it has a higher power density than traditional motor, so it is suitable for electric vehicle driving motor. In addition, the dual rotor motor can drive the wheel directly after reasonable deceleration, which can save the mechanical differential in the traditional drive axle and make the structure of the drive axle simpler. According to the scheme of multi-bridge drive system of oil-electric hybrid electric vehicle with independent intellectual property rights, the design and stability research of the planetary gear deceleration double-rotor motor is carried out in this paper. The main work of this paper is as follows: (1) the basic parameters of the double rotor motor and the planetary reducer are determined according to the technical specifications given in the project, and the gear matching design of the planetary reducer is completed. Secondly, the structure design of double rotor motor and planetary reducer is carried out. (2) the finite element analysis model of two dimensional electromagnetic field is established in Ansoft / Maxwell software. The electromagnetism performance of the motor is verified by the analysis of the overload condition and the torque of the tooth slot. The simulation results show that the design of the double-rotor motor is reasonable and can meet the design technical requirements. (3) using Ansoft / Maxwell software, the average magnetic density to the air gap and the average magnetic density at the magnetic bridge are analyzed by using Ansoft / Maxwell software. The influence of the key electromagnetic performance parameters such as the average electromagnetic torque and the eddy current loss of the inner rotor iron core is obtained and the boundary size of the inner rotor core structure optimization is determined. The topology optimization of the inner rotor core and the key parts of the reducer is carried out by using Hyperworks / Optistruct software under stress constraints. After optimization, the inner rotor core weight loss is 20.68%, the average weight loss of reducer parts is more than 30%. Finally, the drawings are modified according to the structural optimization results. (4) according to the small signal method, the stability of the rotor motor in open loop and closed loop (including constant torque region and weak magnetic expansion region) is analyzed respectively. The results show that there are unstable operating points in the open loop state of the dual rotor motor. However, a certain closed loop control scheme can keep the motor stable all the time. The open-loop and closed-loop simulation of double-rotor motor is carried out by Matlab / Simulink software, and the results are verified. The sensitivity of the eigenvalue of the system matrix is calculated, and the influence of system parameters on stability under different control modes is discussed. (5) bench tests are carried out on the functional prototype to test the no-load and partial load characteristics of the system.
【學(xué)位授予單位】：華南理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U469.72;U463.6

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