永磁交流馬達無轉軸位置感測器控制及驗證

Shaft Position Sensorless Control of Permanent Magnet AC Motor and Verification

陳明輝(Ming-Hui Chen)

指導教授 ： 楊勝明

國立臺北科技大學/電資學院/電力電子產業研發碩士專班/碩士(2011年)

摘要

永磁交流馬達因為效率高、可高轉速運轉，且每單位電流的轉矩比大，所以逐漸被廣泛使用。在馬達控制系統中，為了達到向量控制之目的，通常需要馬達連續轉角位置資訊；然而獲得轉角位置資訊的方式一般是藉由位置感測器，例如編碼器(Encoder)、解角器(Resolver)或霍爾感測器(Hall Sensor)來取得。但也有特殊環境不易安裝此類位置感測裝置，例如壓縮機或主軸體積較小，空間受到限制的馬達，或是運轉時，震動會破壞裝置的物理特性與結構，而其中最容易受環境溫度和濕度影響就是霍爾感測元件。綜合上述原因，因此發展出無轉軸位置感測器控制(Shaft Sensorless Control)。本文以內藏式永磁交流馬達為對象，研究分析、設計及製作一無轉軸位置感測器控制系統。內文以理論分析為基礎，首先說明永磁交流馬達的數學模型與控制原理，接著提出轉軸位置估測器與無轉軸位置感測器控制系統，最後再以實驗驗證其系統可行性。

關鍵字

永磁交流馬達 ； 無轉軸位置感測器控制

並列摘要

Permanent magnet AC motor was widely used because of the high efficiency, high-speed operation, and the high ratio for per unit current torque. In order to achieve the purpose of vector control, we need the rotor position by the position sensors like encoder, resolver and hall sensor in the motor control system. There position sensors can not to be installed in everywhere. In this thesis, the back EMF method of shaft position sensorless control of observer was explored to replace the position sensors and improve the system reliability. This thesis aims to explore the shaft position sensorless control of permanent magnet AC motor and verification. First, we analysised the based theoretical of the permanent magnet AC motor control, shaft position sensorless and velocity observer control of the mathematical model. We explored the shaft position sensorless control of observer application to control system. Finally, we proposed a control strategy application to the shaft position sensorless control system.

並列關鍵字

Permanent magnet AC Motor ； Shaft Position Sensorless

參考文獻

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