本文選題：永磁自減速電機(jī) + 開繞組��； 參考：《東南大學(xué)》2016年碩士論文

【摘要】：在大力提倡節(jié)能減排,低碳出行的背景下,電動汽車以其零排放、低噪音和高效率等顯著優(yōu)點(diǎn)已呈加速發(fā)展態(tài)勢。本文研究用的永磁自減速電機(jī)與傳統(tǒng)電機(jī)相比,效率高、功率密度大、可靠性強(qiáng),尤其適用于驅(qū)動電動汽車。電機(jī)驅(qū)動系統(tǒng)是電動汽車的關(guān)鍵部分,傳統(tǒng)的電機(jī)驅(qū)動系統(tǒng)通過普通電壓型逆變器供電,這種供電方式輸出的電壓質(zhì)量較差,能源利用率較低,容錯(cuò)能力較弱。基于雙逆變器的開繞組結(jié)構(gòu)以其直流電源利用率高,容錯(cuò)能力強(qiáng),輸出容量大等優(yōu)點(diǎn)越來越受到人們的關(guān)注。這種結(jié)構(gòu)將正常三相電機(jī)定子繞組的Y型(△型)連接點(diǎn)解開,定子繞組的兩端分別連接一個(gè)獨(dú)立標(biāo)準(zhǔn)的逆變器。本文以永磁自減速電機(jī)為研究對象,針對開繞組永磁自減速電機(jī)單相繞組開路故障的容錯(cuò)控制進(jìn)行了深入的研究。本文的工作為進(jìn)一步研究基于雙逆變器的開繞組電機(jī)及其驅(qū)動系統(tǒng)的容錯(cuò)控制打下了一定的基礎(chǔ)。論文首先介紹了永磁自減速電機(jī)、開繞組電機(jī)控制系統(tǒng)以及電機(jī)驅(qū)動系統(tǒng)容錯(cuò)控制的國內(nèi)外研究現(xiàn)狀。然后介紹了開繞組電機(jī)拓?fù)浣Y(jié)構(gòu)及其控制策略,并建立了基于開繞組的永磁自減速電機(jī)的數(shù)學(xué)模型。本文詳細(xì)介紹了開繞組永磁自減速電機(jī)控制系統(tǒng)的工作原理,基于空間矢量脈寬調(diào)制技術(shù)(SVPWM)構(gòu)建了開繞組永磁自減速電機(jī)矢量控制系統(tǒng)�；贛atlab/Simulink仿真平臺,搭建了開繞組永磁自減速電機(jī)矢量控制系統(tǒng)正常運(yùn)行的仿真模型,并將仿真結(jié)果與理論研究進(jìn)行了對比分析,驗(yàn)證了該控制系統(tǒng)的可行性。論文重點(diǎn)針對開繞組永磁自減速電機(jī)單相繞組開路故障進(jìn)行了研究,詳細(xì)分析了其容錯(cuò)控制原理,采用了一種兩相雙H橋容錯(cuò)控制策略,并基于此提出了一種改進(jìn)型雙H橋容錯(cuò)控制策略來抑制電機(jī)的轉(zhuǎn)矩脈動。同時(shí),基于Matlab/Simulink仿真平臺,建立了開繞組永磁自減速電機(jī)單相繞組開路故障容錯(cuò)控制的仿真模型,結(jié)合理論以及仿真結(jié)果的分析,驗(yàn)證了本文提出的開繞組永磁自減速電機(jī)矢量控制系統(tǒng)單相開路故障的容錯(cuò)控制策略。最后搭建了基于dSPACE的開繞組電機(jī)控制系統(tǒng)實(shí)驗(yàn)平臺,并分別對開繞組永磁自減速電機(jī)正常運(yùn)行條件下的矢量控制系統(tǒng)和單相繞組開路故障情況下的容錯(cuò)控制系統(tǒng)進(jìn)行了實(shí)驗(yàn)研究,實(shí)驗(yàn)結(jié)果表明開繞組永磁自減速電機(jī)控制系統(tǒng)具有良好的動態(tài)性能和容錯(cuò)運(yùn)行能力。
[Abstract]:In the context of energy saving and low carbon travel, electric vehicles have been accelerating with their advantages of zero emission, low noise and high efficiency. Compared with the traditional motor, the permanent magnet self-decelerating motor used in this paper has the advantages of high efficiency, high power density and high reliability, so it is especially suitable for driving electric vehicles. The motor drive system is the key part of electric vehicle. The traditional motor drive system is supplied by the common voltage source inverter. The output voltage quality is poor, the energy efficiency is low, and the fault tolerance is weak. The open winding structure based on double inverter has attracted more and more attention because of its high utilization of DC power, strong fault tolerance and large output capacity. This structure unlocks the Y-type connection point of the stator winding of the normal three-phase motor, and the two ends of the stator winding are connected with an independent standard inverter. In this paper, the fault tolerant control of single-phase winding open circuit fault of open-winding permanent magnet self-decelerating motor is studied. The work of this paper lays a foundation for further research on fault tolerant control of open winding motor and its drive system based on double inverter. Firstly, this paper introduces the research status of permanent magnet self-decelerating motor, open-winding motor control system and fault tolerant control of motor drive system at home and abroad. Then the topology and control strategy of open-winding motor are introduced, and the mathematical model of permanent magnet self-decelerating motor based on open-winding is established. In this paper, the working principle of open-winding permanent magnet self-decelerating motor control system is introduced in detail, and the vector control system of open-winding permanent magnet self-decelerating motor is constructed based on space vector pulse width modulation (SVPWM) technology. Based on Matlab / Simulink simulation platform, the simulation model of vector control system of open-winding permanent magnet self-decelerating motor is built. The simulation results are compared with the theoretical research, and the feasibility of the control system is verified. In this paper, the open circuit fault of single-phase winding of open-winding permanent magnet self-decelerating motor is studied, and its fault-tolerant control principle is analyzed in detail, and a two-phase dual H bridge fault-tolerant control strategy is adopted. Based on this, an improved dual H bridge fault-tolerant control strategy is proposed to suppress the torque ripple of the motor. At the same time, based on Matlab / Simulink simulation platform, the simulation model of single-phase open-circuit fault tolerant control of open-winding permanent magnet self-decelerating motor is established. The fault tolerant control strategy for single phase open circuit fault of open winding permanent magnet self-decelerating motor vector control system proposed in this paper is verified. Finally, an experimental platform of open winding motor control system based on DSpace is built. The vector control system of open-winding permanent magnet self-decelerating motor under normal operation and the fault-tolerant control system of single-phase winding open circuit fault are studied experimentally. The experimental results show that the open winding permanent magnet self-decelerating motor control system has good dynamic performance and fault-tolerant operation ability.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：U469.72

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