本文選題：余度技術(shù) + DR-PMSM��； 參考：《西安科技大學(xué)》2017年碩士論文

【摘要】：在現(xiàn)代航空航天領(lǐng)域,一體化電力作動器(Integrated ElectricalActuator,IEA)的應(yīng)用越來越廣泛,永磁同步電機(jī)(Permanent Magnet Synchronous Motor,PMSM)是 IEA的重要組成部分,同時也是故障的高發(fā)環(huán)節(jié)。為了提高IEA系統(tǒng)可靠性,行之有效的方式就是提高PMSM系統(tǒng)的可靠性。目前國內(nèi)外均通過余度技術(shù)提高PMSM系統(tǒng)可靠性,即從電機(jī)本體優(yōu)化設(shè)計和電機(jī)驅(qū)動控制兩個方面進(jìn)行研究1。本文主要針對雙余度永磁同步電機(jī)(Dual-redundancy Permanent Magnet Synchronous Motor,DR-PMSM)驅(qū)動控制系統(tǒng)進(jìn)行建模、分析與仿真、軟硬件設(shè)計等工作的研究。分析了 DR-PMSM驅(qū)動控制系統(tǒng)的拓?fù)浣Y(jié)構(gòu)。針對DR-PMSM本體,分別建立其在三種坐標(biāo)系的數(shù)學(xué)模型,并推導(dǎo)了傳遞函數(shù)。對驅(qū)動控制系統(tǒng)的三相全控橋、電流均衡方法、轉(zhuǎn)子位置檢測通道重構(gòu)方法進(jìn)行建模。采用轉(zhuǎn)子磁場定向方式,并將id=0的電流矢量控制方法運用到系統(tǒng)中。設(shè)計了 DR-PMSM驅(qū)動控制系統(tǒng)的總體方案,采用轉(zhuǎn)速-電流雙閉環(huán)控制方法,同時結(jié)合空間矢量對DR-PMSM系統(tǒng)進(jìn)行調(diào)速控制。通過“電流平均注入法”解決由于電流不均衡帶來的轉(zhuǎn)矩脈動大,運行不平穩(wěn)的問題。采用轉(zhuǎn)子位置檢測通道重構(gòu)方案增加系統(tǒng)的容錯能力。在Matlab/Simulink建立DR-PMSM系統(tǒng)的仿真模型,分析系統(tǒng)在兩種余度工作模式下運行以及切換時的轉(zhuǎn)速和三相電流響應(yīng)。驅(qū)動控制系統(tǒng)采用“單CPU+雙驅(qū)動”提高整個系統(tǒng)工作的可靠性。通過對驅(qū)動控制系統(tǒng)總體方案的分析,將系統(tǒng)的硬件電路分為控制電路、電源電路以及功率驅(qū)動電路。對部分關(guān)鍵電路進(jìn)行選型,確定了主控芯片,功率驅(qū)動模塊以及電機(jī)轉(zhuǎn)子位置的檢測模塊,同時對驅(qū)動控制系統(tǒng)的硬件電路進(jìn)行了詳細(xì)的分析。根據(jù)DR-PMSM系統(tǒng)性能的要求,并結(jié)合驅(qū)動控制系統(tǒng)的硬件電路,對系統(tǒng)進(jìn)行軟件設(shè)計。對系統(tǒng)程序進(jìn)行模塊化處理,包括主程序、中斷程序、轉(zhuǎn)子位置檢測通道重構(gòu)方法程序等。采用基于NI公司的Labview虛擬儀器建立上位機(jī)平臺,實現(xiàn)控制器與上位機(jī)之間轉(zhuǎn)速、三相電流、母線電壓等參數(shù)的發(fā)送以及接收,運行狀態(tài)的實時顯示以及試驗數(shù)據(jù)的存儲等。最后進(jìn)行了實驗研究,進(jìn)行的實驗主要包括電源性能測試、電機(jī)性能測試、旋變解算電路測試和PWM信號測試。為了驗證系統(tǒng)動態(tài)響應(yīng)性能,通過上位機(jī)發(fā)送指令,電機(jī)轉(zhuǎn)速設(shè)置為2000 rpm階躍指令。實驗結(jié)果表明系統(tǒng)啟動快,無超調(diào),指令值和誤差值在誤差允許范圍內(nèi),系統(tǒng)動態(tài)響應(yīng)性能良好。
[Abstract]:In the field of modern aeronautics and astronautics, integrated electric actuator (IEA) is more and more widely used. Permanent Magnet Synchronous motor (PMSM) is an important part of IEA, and it is also a high probability link of faults. In order to improve the reliability of IEA system, the effective way is to improve the reliability of PMSM system. At present, the reliability of PMSM system is improved by redundancy technology at home and abroad, that is, the optimization design of motor body and motor drive control are studied. This paper focuses on the modeling, analysis and simulation of Dual-redundancy Permanent Magnet Synchronous Motor DR-PMSMMM drive control system, and the design of hardware and software. The topology of DR-PMSM drive control system is analyzed. The mathematical models of DR-PMSM ontology in three coordinate systems are established and the transfer function is derived. The three-phase full control bridge, current equalization method and rotor position detection channel reconstruction method of driving control system are modeled. The current vector control method of id=0 is applied to the system. The overall scheme of DR-PMSM drive control system is designed, and the speed and current double closed loop control method is adopted. At the same time, the speed regulation of DR-PMSM system is controlled by space vector. The "current average injection method" is used to solve the problem of large torque ripple and unsteady running due to current imbalance. The rotor position detection channel reconstruction scheme is used to increase the fault tolerance of the system. The simulation model of DR-PMSM system is established in Matlab/Simulink, and the response of speed and three-phase current when the system runs and switches in two redundant working modes is analyzed. The single CPU dual drive system is used to improve the reliability of the whole system. The hardware circuit of the system is divided into control circuit, power supply circuit and power drive circuit by analyzing the overall scheme of the drive control system. Some key circuits are selected and the main control chip, power drive module and motor rotor position detection module are determined. At the same time, the hardware circuit of the drive control system is analyzed in detail. According to the requirement of DR-PMSM system performance and the hardware circuit of the drive control system, the software of the system is designed. Modularize the system program, including the main program, interrupt program, rotor position detection channel reconstruction program and so on. The Labview virtual instrument based on NI company is used to set up the upper computer platform to realize the transmission and reception of the parameters such as rotational speed, three-phase current, bus voltage and so on between the controller and the host computer, the real-time display of the running state and the storage of the test data, etc. Finally, the experiments are carried out, including power performance test, motor performance test, rotation calculation circuit test and PWM signal test. In order to verify the dynamic response performance of the system, the machine sends instructions and the motor speed is set to 2000 rpm step instruction. The experimental results show that the system starts quickly, has no overshoot, and the command value and error value are within the range of error, and the dynamic response performance of the system is good.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM341

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