【摘要】：由于轉(zhuǎn)子無永磁體、制造成本低,無軸承磁通切換電機(jī)在醫(yī)療衛(wèi)生、生化反應(yīng)等需要一次性拋棄或需要處理高溫流體等應(yīng)用場合具有獨特優(yōu)勢。該文在分析了傳統(tǒng)無軸承磁通切換電機(jī)的工作原理基礎(chǔ)上,探究懸浮力與轉(zhuǎn)子轉(zhuǎn)角及氣隙之間的關(guān)系,結(jié)果表明其懸浮力特性畸變嚴(yán)重,控制困難。針對該問題,文中研究了一種轉(zhuǎn)子交錯并列式的新型結(jié)構(gòu),理論分析表明該結(jié)構(gòu)可有效消除懸浮力中大量的偶次諧波及直流分量,從而達(dá)到優(yōu)化懸浮力、簡化控制的目的。在此基礎(chǔ)上,推導(dǎo)了懸浮力數(shù)學(xué)模型,并進(jìn)行了有限元仿真對比分析,研究結(jié)果驗證了該新型結(jié)構(gòu)對懸浮力優(yōu)化效果以及控制算法的正確性,且懸浮力與轉(zhuǎn)矩之間具有較好的解耦控制效果。最后,研制了一臺樣機(jī),對電機(jī)轉(zhuǎn)矩相關(guān)性能進(jìn)行了實驗驗證和分析,成功實現(xiàn)了穩(wěn)定懸浮。
[Abstract]:Because the rotor has no permanent magnet and low manufacturing cost, the bearingless flux switching motor has unique advantages in medical, biochemical reaction and other applications such as disposable abandonment or need to deal with high-temperature fluid. Based on the analysis of the working principle of the traditional bearingless flux switching motor, the relationship between the suspension force and the rotor rotation angle and air gap is explored. The results show that the suspension force characteristic distortion is serious and the control is difficult. To solve this problem, a new type of rotor staggered parallel structure is studied in this paper. Theoretical analysis shows that the structure can effectively eliminate a large number of even harmonics and DC components in the suspension force, so as to optimize the suspension force and simplify the control. On this basis, the mathematical model of suspension force is derived, and the finite element simulation and contrast analysis are carried out. The research results verify the effectiveness of the new structure to the suspension force optimization and the correctness of the control algorithm. And the suspension force and torque have better decoupling control effect. Finally, a prototype is developed, and the torque related performance of the motor is verified and analyzed experimentally, and the stable suspension is successfully realized.
【作者單位】： 南京航空航天大學(xué);南京工業(yè)職業(yè)技術(shù)學(xué)院;
【分類號】：TM35

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