本文選題：開(kāi)關(guān)磁阻電機(jī)　切入點(diǎn)：無(wú)源控制　出處：《電子科技大學(xué)》2015年碩士論文

【摘要】：開(kāi)關(guān)磁阻電機(jī)驅(qū)動(dòng)系統(tǒng)(Switched Reluctance Drive System,SRD)具有堅(jiān)固的電機(jī)結(jié)構(gòu),轉(zhuǎn)子無(wú)永磁體無(wú)繞組,調(diào)速范圍寬廣等優(yōu)點(diǎn),在變速驅(qū)動(dòng)領(lǐng)域內(nèi)被視為常規(guī)驅(qū)動(dòng)器的可靠替代品�，F(xiàn)階段開(kāi)關(guān)磁阻電機(jī)應(yīng)用領(lǐng)域主要有電動(dòng)車(chē)輛驅(qū)動(dòng),牽引電機(jī),飛機(jī)起動(dòng)/發(fā)電系統(tǒng),煤礦石油鉆井機(jī)械驅(qū)動(dòng),家用電器等。開(kāi)關(guān)磁阻電機(jī)(Switched Reluctance Motor,SRM)具有高度非線性且多變量耦合的電磁特性,如磁鏈、電感、瞬時(shí)轉(zhuǎn)矩等都是與轉(zhuǎn)子位置角和相電流相關(guān)的非線性函數(shù),并且存在轉(zhuǎn)矩脈動(dòng)這一固有缺點(diǎn)。因此,盡管開(kāi)關(guān)磁阻電機(jī)機(jī)械結(jié)構(gòu)簡(jiǎn)單,卻需要復(fù)雜的計(jì)算和控制算法。在本文中,提出了一種基于無(wú)源控制(Passivity-baesd Control,PBC)的開(kāi)關(guān)磁阻電機(jī)控制方法,主要工作如下:首先,基于開(kāi)關(guān)磁阻電機(jī)系統(tǒng)的無(wú)源性,將電機(jī)模型分解為電氣無(wú)源系統(tǒng)和機(jī)械無(wú)源系統(tǒng)的負(fù)反饋互聯(lián)。在各種SRM非線性建模技術(shù)中選擇了一種非線性磁鏈模型,并在此基礎(chǔ)上給出電氣子系統(tǒng)的歐拉-拉格朗日方程。接著,設(shè)計(jì)級(jí)聯(lián)的控制器結(jié)構(gòu),外環(huán)實(shí)現(xiàn)轉(zhuǎn)速控制,內(nèi)環(huán)實(shí)現(xiàn)轉(zhuǎn)矩控制。在外環(huán)上采用單神經(jīng)元自適應(yīng)PID速度控制器,以生成參考轉(zhuǎn)矩指令,與常規(guī)PID控制器比較,能夠?qū)崿F(xiàn)高性能的速度控制。然后,內(nèi)環(huán)上基于電氣子系統(tǒng)的歐拉-拉格朗日方程,采用無(wú)源控制方法設(shè)計(jì)了一個(gè)非線性電流反饋控制器,用于產(chǎn)生功率變換器中開(kāi)關(guān)管的觸發(fā)信號(hào)。最后,根據(jù)提出的控制方法在SIMULINK下仿真建模驗(yàn)證,結(jié)果表明該控制器能使電機(jī)有效跟蹤給定的轉(zhuǎn)速指令,并能抑制轉(zhuǎn)矩脈動(dòng)。這一非線性控制器不同于以信號(hào)分析控制角度設(shè)計(jì)的控制器,而是以能量整形與控制角度設(shè)計(jì)得到的。該控制器解決了轉(zhuǎn)速/轉(zhuǎn)矩跟蹤問(wèn)題,控制過(guò)程遵循以下三步:第一,轉(zhuǎn)速控制器給出參考轉(zhuǎn)矩指令;第二,計(jì)算參考電流值以確保轉(zhuǎn)矩跟蹤;第三,基于無(wú)源控制的電壓PWM控制器實(shí)現(xiàn)電流跟蹤控制。其特點(diǎn)在于充分考慮到定子繞組的磁鏈飽和效應(yīng),并且采用轉(zhuǎn)矩分配函數(shù)以抑制轉(zhuǎn)矩脈動(dòng)。設(shè)計(jì)過(guò)程中采用系統(tǒng)無(wú)源性及能量耗散性等觀點(diǎn),給出了相應(yīng)電壓控制律的數(shù)學(xué)形式,成功將無(wú)源控制應(yīng)用到開(kāi)關(guān)磁阻電機(jī)控制中,對(duì)開(kāi)關(guān)磁阻電機(jī)的新型控制方法研究具有重要意義。
[Abstract]:Switched reluctance motor drive system (Switched Reluctance Drive System, SRD) has a solid structure of motor, permanent magnet rotor winding, wide speed range and other advantages, in the field of variable speed drive is regarded as a reliable alternative to conventional drive. At this stage of the switched reluctance motor used mainly in the field of electric vehicles, traction motor. Aircraft starter / generator system, coal oil drilling machine drive, household appliances. Switched reluctance motor (Switched Reluctance, Motor, SRM) the electromagnetic characteristics of highly nonlinear and multi variable coupling, such as magnetic chain, inductance, the instantaneous torque are with a nonlinear function of rotor position angle and phase current and torque ripple related. The inherent shortcomings. Therefore, although the switch reluctance motor has the advantages of simple mechanical structure, but need to be calculated and the complex control algorithm. In this paper, based on passive control ( Passivity-baesd Control, PBC) of the switched reluctance motor control method, the main work is as follows: firstly, the passivity of the switched reluctance motor system based on the motor model is decomposed into negative feedback interconnected passive electrical system and mechanical passive system. Choose a nonlinear flux linkage model in various nonlinear SRM modeling technology, and then the Euler given the electrical subsystem based on the Lagrange equation. Then, the controller structure design of cascade, the outer ring to achieve speed control, torque control loop. The single neuron adaptive PID controller in the outer loop, the reference torque command to generate, compared with the conventional PID controller can achieve high performance speed control. Then, the inner ring on the Euler Lagrange equation based on the electrical subsystem, using passive control method to design a nonlinear current feedback controller is used to generate power The converter switches in the trigger signal. Finally, according to the proposed control method under the SIMULINK simulation model validation, the results show that the controller can make the motor effectively track the given speed command, and can suppress torque ripple. The nonlinear controller is different from the signal analysis controller to control the angle of design, but the design of energy shaping and the control angle obtained. The controller solves the speed / torque tracking control problem, process the following three steps: first, the speed controller gives the reference torque command; second, calculating the reference current value to ensure the torque tracking; third, passive voltage PWM controller to realize the control of current tracking control based on its characteristics is to fully take into account the flux the stator winding of the saturation effect, and the torque distribution function to suppress the torque ripple. The system is passive and energy dissipation of the design process The mathematical form of corresponding voltage control law is given. The application of passive control to switched reluctance motor control is of great significance for the research of new control method of switched reluctance motor.

【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TM352

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 袁曉玲;王偉炳;;基于轉(zhuǎn)矩觀測(cè)法的開(kāi)關(guān)磁阻電機(jī)轉(zhuǎn)矩脈動(dòng)抑制[J];系統(tǒng)仿真學(xué)報(bào);2006年S2期

相關(guān)博士學(xué)位論文 前1條

1 裘君;基于耗散哈密頓系統(tǒng)的永磁同步電機(jī)控制研究[D];浙江大學(xué);2009年

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本文編號(hào)：1728980