永磁自軸承馬達之徑向力分析、模擬、控制及驗證

Analysis, Simulation, Control and Verification of the Radial Force in a PMSM Self-Bearing Motor

陳佳斌(Chia-Pin Chen)

指導教授 ： 楊勝明

國立臺北科技大學/電資學院/電機工程系所/碩士(2010年)

摘要

利用磁力軸承輔助旋轉的馬達驅動系統具有零摩擦力、低噪音、高轉速、以及高功率等特性，為目前電機機械方面相當重要的研究課題，在工業界亦有許多應用，例如工具機主軸、渦輪分子泵、研磨拋光機、壓縮機和空調機等。自軸承馬達是結合了馬達與磁力軸承特性的新型馬達，利用繞組同時產生馬達轉矩與轉子懸浮之徑向力，所以自軸承馬達的體積比具有磁力軸承馬達小。
傳統的自軸承馬達具有懸浮繞組與轉矩繞組，稱為複合式繞組自軸承馬達，運轉時必須同時控制這兩種繞組電流，而自軸承馬達定子的結構由集中線圈所構成，每一個線圈同時具有馬達電流和轉矩電流的合成，與複合式繞組自軸承馬達相同的是轉矩電流產生轉矩和懸浮電流產生徑向力。本論文探討單一式繞組自軸承馬達延續先前之研究，利用有限元素分析軟體重新分析磁通及徑向力模型，改善徑向力實驗系統，並將徑向力控制應用於自軸承控制，所以自軸承馬達使用有限元素軟體做分析、模擬與驗證，再經由實驗來證明自軸承馬達徑向力模型的正確性。製作的自軸承馬達為表面磁鐵型3相4極6槽，額定功率100W，徑向力20 N。

關鍵字

永磁同步馬達 ； 磁懸浮 ； 自軸承馬達 ； 徑向力控制 ； 零摩擦

並列摘要

Using magnetic bearings supporting motor drive system has zero friction, low noise, high speed, high power and etc. This is current important research for electrical machinery. There are many applications in the Industry, such as spindles of machine tool, turbo molecular pump, grinding and polishing machines, compressors and air conditioners. Self-bearing motor combines of motor and magnetic bearing characteristics of the new motor which uses windings producing motor torque radial force, so the volume of self-bearing motor is small than magnetic bearing motor.
The traditional self-bearing motor has suspension windings and torque winding, known as the combined winding self-bearing motor, and running must control these two winding currents. The structure of self-bearing motor stator is constituted by the concentrated winding. Every winding has suspension current and torque current, and the complex winding self-bearing motor is same things produces torque with torque-winding current and radial force with suspension-winding current. In this thesis, a single winding self-bearing motor continue from the previous self-bearing study. Radial force of self-bearing use finite element analysis(FEA) software to Analyze, simulate , verify this force which is correct. Self-bearing is surface magnet motor, 3-phase, 4 poles, 6 slots, rated power 100W and radial force 20 N.

並列關鍵字

Permanent Magnet Synchronous Motor ； Magnetic Levitation ； Self-bearing Motor ； Radial Force Control ； No Friction

參考文獻

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