本文關(guān)鍵詞： 準(zhǔn)正弦波無刷直流電機(jī) 雙極性PWM-ON 不連續(xù)SVPWM 電壓超前角控制 聯(lián)合仿真　出處：《西南交通大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：永磁無刷直流電動(dòng)機(jī)有著控制簡單、調(diào)速性能好、效率高等特點(diǎn),目前在伺服控制等領(lǐng)域已經(jīng)得到了廣泛的應(yīng)用,無刷直流電機(jī)專用數(shù)字控制器的出現(xiàn),在一定程度上解決了電機(jī)控制復(fù)雜性的問題,而且便于控制系統(tǒng)通過代碼下載進(jìn)行升級,進(jìn)一步擴(kuò)展了永磁無刷直流電機(jī)在控制領(lǐng)域的應(yīng)用范圍。 本文研究的準(zhǔn)正弦波無刷直流電機(jī)是指反電動(dòng)勢平頂寬度小于110。電角度的梯形波永磁無刷直流電機(jī)或正弦波永磁無刷直流電機(jī),通過比較方波電流和正弦波電流在不同平頂寬度下轉(zhuǎn)矩脈動(dòng)的區(qū)別,可知采用正弦波電流驅(qū)動(dòng)比傳統(tǒng)的方波驅(qū)動(dòng)更有利于電機(jī)轉(zhuǎn)矩脈動(dòng)的抑制,結(jié)合兩種驅(qū)動(dòng)方式,采用復(fù)合驅(qū)動(dòng)的控制方式來滿足電機(jī)啟動(dòng)速度快,運(yùn)行平穩(wěn)的要求,在MATLAB/Simulink軟件平臺(tái)上搭建了平頂寬度為100。電角度的梯形波無刷直流電機(jī)復(fù)合驅(qū)動(dòng)控制系統(tǒng)仿真模型,對控制系統(tǒng)進(jìn)行了仿真實(shí)驗(yàn),并對仿真結(jié)果進(jìn)行分析,驗(yàn)證了準(zhǔn)正弦波無刷直流電機(jī)控制系統(tǒng)設(shè)計(jì)的正確性。線性霍爾傳感器一般是用于方波驅(qū)動(dòng)的換相控制,而采用鎖相環(huán)倍頻方法對霍爾信號(hào)進(jìn)行控制,可實(shí)現(xiàn)滿足正弦波驅(qū)動(dòng)要求的高精度轉(zhuǎn)子位置檢測,不僅降低了控制系統(tǒng)的成本,而且擴(kuò)展了正弦波驅(qū)動(dòng)的應(yīng)用范圍。 本文使用硬件描述語言Verilog對控制系統(tǒng)模塊進(jìn)行了功能設(shè)計(jì),并使用Modelsim仿真軟件對控制模塊進(jìn)行了功能仿真與驗(yàn)證,本文還使用MATLAB和Modelsim軟件把設(shè)計(jì)的控制模塊與準(zhǔn)正弦波永磁無刷直流電機(jī)、逆變器等結(jié)合進(jìn)行了聯(lián)合仿真,并對仿真結(jié)果進(jìn)行了對比分析,最后通過下載代碼到Cylonell系列EP2C5Q208C8N芯片中,進(jìn)一步驗(yàn)證整個(gè)設(shè)計(jì)控制模塊的可行性與有效性。
[Abstract]:Permanent magnet brushless DC motor has the characteristics of simple control, good speed regulation performance, high efficiency and so on. At present, it has been widely used in servo control field, and the emergence of special digital controller for brushless DC motor. The complexity of motor control is solved to a certain extent, and the control system is easily upgraded by code download, which further expands the application range of permanent magnet brushless DC motor in control field. The quasi-sinusoidal brushless DC motor studied in this paper refers to a trapezoidal permanent magnet brushless DC motor with an electric angle or a sinusoidal permanent magnet brushless DC motor with a flat-top width less than 110. By comparing the difference between square wave current and sine wave current in different flat-top width, it can be concluded that sinusoidal current drive is more advantageous to restrain torque ripple than traditional square wave drive. The control mode of compound drive is adopted to meet the requirements of fast starting speed and stable running of motor. The simulation model of trapezoidal wave brushless DC motor compound drive control system with electric angle is built on the platform of MATLAB/Simulink software. The simulation experiment of the control system is carried out, and the simulation results are analyzed to verify the correctness of the design of the control system of the quasi-sinusoidal brushless DC motor. The linear Hall sensor is generally used for the commutation control of square wave drive. By using the phase-locked loop frequency doubling method to control the Hall signal, the high precision rotor position detection can be realized, which not only reduces the cost of the control system, but also expands the application range of the sine wave drive. In this paper, the function of the control system module is designed by using the hardware description language Verilog, and the function of the control module is simulated and verified by using the Modelsim simulation software. This paper also uses MATLAB and Modelsim software to combine the designed control module with quasi-sinusoidal permanent magnet brushless DC motor, inverter and so on. The simulation results are compared and analyzed. Finally, the code is downloaded to Cylonell series EP2C5Q208C8N chip. Further verify the feasibility and effectiveness of the whole design control module.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM33

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