本文選題：對轉式永磁無刷直流電機 + 有位置檢測��； 參考：《浙江大學》2016年碩士論文

【摘要】：永磁無刷直流電機因為具有結構簡單、運行效率高、控制簡單和維護方便等優(yōu)點而得到了廣泛應用。永磁無刷直流電機一般采用三相六狀態(tài)120。導通方式,在有位置傳感器控制方式下,需要位置傳感器在一個周期內檢測六個關鍵的轉子位置信號以便于對三相繞組進行換相控制。在無位置傳感器控制策略下,常用的有基于反電勢過零點的換相控制,通過反電勢提取轉子位置信息。對轉式永磁無刷直流電機(簡稱對轉BLDC)是一種特殊的永磁無刷直流電機,它的電磁結構與普通永磁無刷直流電機完全相同,所不同的是它除了作為永磁體部分可以旋轉以外,它的電樞部分也可以相對靜止部分旋轉。對轉式永磁無刷直流電機在作用力與反作用力下,兩個轉子進行對轉。在水下推進系統(tǒng)中,由于流體中旋轉有陀螺效應,利用對轉可安裝對轉螺旋槳維持平衡,同時增大了能量轉換效率；在風力發(fā)電領域可提高對風能利用率；在新型車領域也能利用對轉電機減小機械復雜性,減小電機部分體積。本文以對轉式永磁無刷直流電機為主要研究對象,通過與普通永磁無刷直流電機的對比,主要研究了對轉BLDC的數學模型、轉速影響因素、有位置檢測控制策略、無位置檢測控制策略。針對基于反電勢過零點的無位置檢測控制策略啟動困難問題,提出了一種基于電感差異的啟動方法。另外,論文還在MATLAB/Simulink平臺上通過仿真實驗驗證了能夠將普通永磁無刷直流電機的控制策略推廣到對轉式永磁無刷直流電機,最后基于TI公司TMS320F28069芯片搭建了電機控制系統(tǒng)硬件平臺,在該硬件平臺上完成了基于霍爾位置傳感器的有位置檢測控制策略和基于反電勢過零點的無位置檢測控制策略。
[Abstract]:Permanent magnet brushless DC motor is widely used because of its simple structure, high running efficiency, simple control and easy maintenance. Permanent magnet brushless DC motor generally adopts three-phase six-state 120. Under the control mode of position sensor, the position sensor is required to detect six key rotor position signals in one cycle to control the phase commutation of the three-phase winding. In the sensorless control strategy, commutative control based on inverse EMF zero crossing point is commonly used, and rotor position information is extracted by reverse EMF. The dual rotating permanent magnet brushless DC motor (BLDC) is a kind of special permanent magnet brushless DC motor. Its electromagnetic structure is identical with that of the ordinary permanent magnet brushless DC motor. The difference is that it can be rotated except as a permanent magnet. Its armature section can also rotate relative to the stationary part. Two rotors are rotated against the rotating permanent magnet brushless DC motor under the acting force and the reaction force. In underwater propulsion system, due to gyroscopic effect in fluid rotation, counterrotating propeller can be installed to maintain balance and increase energy conversion efficiency, and wind energy utilization rate can be improved in wind power generation field. In the field of new type vehicles, it is also possible to reduce the mechanical complexity and the partial volume of the motor by using the opposite rotating motor. In this paper, the author mainly studies the mathematical model of rotating permanent magnet brushless DC motor (BLDC), the influence factors of rotating speed and the control strategy of position detection by comparing it with the ordinary permanent magnet brushless DC motor. No position detection control strategy. A starting method based on inductance difference is proposed to solve the starting difficulty of position free detection control strategy based on zero crossing point of reverse EMF. In addition, the control strategy of the ordinary permanent magnet brushless DC motor can be extended to the counterrotating permanent magnet brushless DC motor on the MATLAB/Simulink platform by simulation experiments. Finally, the hardware platform of the motor control system is built based on TI's TMS320F28069 chip. On this hardware platform, the position detection control strategy based on Hall position sensor and the position detection control strategy without position detection based on inverse EMF crossing zero point are completed.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：TM33

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本文編號：1889422