本文關(guān)鍵詞：基于TMS320F2812的異步電機(jī)空間矢量控制系統(tǒng)的研究　出處：《湖南大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 三相異步電機(jī) 電壓空間矢量控制技術(shù) Matlab/Simulink TMS320F2812

【摘要】：近年來(lái),電力電子制造技術(shù)、微處理器技術(shù)以及現(xiàn)代電機(jī)控制理論的發(fā)展極大地促進(jìn)了交流變頻調(diào)速的發(fā)展。三相異步電動(dòng)機(jī)采用空間矢量控制技術(shù)可以獲得與直流電機(jī)相媲美的調(diào)速性能,而且三相異步電動(dòng)機(jī)空間矢量控制系統(tǒng)具有更高的調(diào)速精度、更快的響應(yīng)速度和更大的調(diào)速范圍。論文深入研究了電壓空間矢量控制技術(shù),設(shè)計(jì)了一臺(tái)基于TMS320F2812的三相異步電動(dòng)機(jī)空間矢量控制系統(tǒng),并通過(guò)仿真與實(shí)驗(yàn)對(duì)該電機(jī)控制系統(tǒng)的性能進(jìn)行測(cè)試和評(píng)估。 首先,選用鼠籠式三相異步電動(dòng)機(jī)作為研究對(duì)象,利用坐標(biāo)變換理論,分析了三相異步電動(dòng)機(jī)在三相靜止坐標(biāo)系、兩相靜止坐標(biāo)系以及旋轉(zhuǎn)坐標(biāo)系下的基本數(shù)學(xué)模型。利用轉(zhuǎn)子磁鏈定向矢量控制技術(shù),實(shí)現(xiàn)了三相異步電動(dòng)機(jī)定子電流的勵(lì)磁分量和轉(zhuǎn)矩分量的解耦。分析了電壓空間矢量調(diào)制技術(shù)的算法以及實(shí)現(xiàn)方法,設(shè)計(jì)了三相異步電動(dòng)機(jī)的雙閉環(huán)矢量控制系統(tǒng)。 在Matlab/Simulink平臺(tái)上建立了轉(zhuǎn)子磁鏈定向的三相異步電動(dòng)機(jī)矢量控制模型。包括三相異步電動(dòng)機(jī)模塊、坐標(biāo)變換模塊、轉(zhuǎn)子磁鏈觀測(cè)器模塊、PI調(diào)節(jié)器模塊以及SVPWM模塊等。對(duì)電機(jī)的啟動(dòng)性能以及加負(fù)載變速運(yùn)行進(jìn)行了仿真分析。仿真結(jié)果表明所建模型的動(dòng)態(tài)過(guò)程符合實(shí)際調(diào)速系統(tǒng)運(yùn)動(dòng)過(guò)程。 根據(jù)三相異步電動(dòng)機(jī)空間矢量控制的原理,以TMS320F2812型DSP作為控制芯片,完成了三相異步電動(dòng)機(jī)空間矢量控制系統(tǒng)硬件與軟件的設(shè)計(jì)。硬件設(shè)計(jì)包括主電路、檢測(cè)電路以及輔助電路的設(shè)計(jì)；軟件設(shè)計(jì)包括了主程序、定時(shí)器(T1)中斷子程序、電流采樣程序、轉(zhuǎn)速采樣程序、PI調(diào)節(jié)器程序、轉(zhuǎn)子磁鏈計(jì)算程序以及SVPWM波形生成程序。通過(guò)軟件開(kāi)發(fā)平臺(tái)CCS3.3編寫(xiě)控制程序,最后記錄了實(shí)驗(yàn)波形并進(jìn)行分析,驗(yàn)證了系統(tǒng)設(shè)計(jì)的有效性。同時(shí)對(duì)實(shí)驗(yàn)中出現(xiàn)的問(wèn)題進(jìn)行了分析和討論,為后續(xù)的研究奠定了必要的基礎(chǔ)。
[Abstract]:In recent years, power electronics manufacturing technology. The development of microprocessor technology and modern motor control theory has greatly promoted the development of AC variable frequency speed regulation. Three-phase asynchronous motor can achieve speed regulation performance comparable to DC motor by using space vector control technology. And three-phase asynchronous motor space vector control system has higher speed accuracy, faster response speed and larger speed range. A three-phase asynchronous motor space vector control system based on TMS320F2812 is designed, and its performance is tested and evaluated by simulation and experiment. Firstly, the squirrel-cage three-phase asynchronous motor is selected as the research object, and the coordinate transformation theory is used to analyze the three-phase asynchronous motor in the three-phase static coordinate system. The basic mathematical model of two-phase stationary coordinate system and rotating coordinate system. The rotor flux oriented vector control technology is used. The excitation component and torque component of stator current of three-phase asynchronous motor are decoupled, and the algorithm and implementation method of voltage space vector modulation are analyzed. A double closed loop vector control system for three-phase asynchronous motor is designed. The vector control model of rotor flux oriented three-phase asynchronous motor is established on Matlab/Simulink platform, which includes three-phase asynchronous motor module and coordinate transformation module. Rotor flux observer module. Pi regulator module and SVPWM module, etc. The start-up performance of motor and load and speed change operation are simulated and analyzed. The simulation results show that the dynamic process of the model accords with the actual speed regulation system motion process. . According to the principle of space vector control of three-phase asynchronous motor, TMS320F2812 DSP is used as the control chip. The hardware and software of the space vector control system of three-phase asynchronous motor are designed. The hardware design includes the main circuit, the detection circuit and the auxiliary circuit. The software design includes main program, timer T1) interrupt subroutine, current sampling program, rotational speed sampling program and Pi regulator program. Rotor flux calculation program and SVPWM waveform generation program. Through the software development platform CCS3.3 to write the control program, finally recorded the experimental waveform and analysis. The effectiveness of the system design is verified, and the problems in the experiment are analyzed and discussed, which lays a necessary foundation for further research.
【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TP273;TM343

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