本文選題：風(fēng)力發(fā)電機 + 軸向磁軸承��； 參考：《機械設(shè)計與制造》2014年12期

【摘要】：為減小風(fēng)力發(fā)電機的機械摩擦及減少其維護成本,降低風(fēng)力發(fā)電機啟動風(fēng)速,減小旋轉(zhuǎn)阻力矩,提高風(fēng)能利用率,在垂直軸風(fēng)力發(fā)電機中采用混合軸承支承,即風(fēng)力發(fā)電機徑向采用1個徑向磁軸承和1個機械軸承支承,軸向采用一個軸向磁軸承來實現(xiàn)五自由度支承。針對軸向磁軸承,首先介紹了其結(jié)構(gòu)及工作原理,然后采用等效磁路法建立數(shù)學(xué)模型,并按性能指標要求進行參數(shù)設(shè)計,然后用Ansoft軟件對軸向磁軸承磁場及受力等進行分析驗證,設(shè)計了軸向磁軸承控制系統(tǒng),并用Matlab軟件對磁軸承的控制系統(tǒng)進行了階躍響應(yīng)、起浮和擾動等仿真研究。研究結(jié)果表明:參數(shù)設(shè)計合理,控制系統(tǒng)夠?qū)崿F(xiàn)磁軸承可靠及穩(wěn)定的懸浮。
[Abstract]:In order to reduce the mechanical friction and maintenance cost of the wind turbine, reduce the wind speed at the start of the wind turbine, reduce the rotating resistance moment, and improve the utilization rate of wind energy, the hybrid bearing support is used in the vertical axis wind turbine. In other words, one radial magnetic bearing and one mechanical bearing support are used in the radial direction of the wind turbine, and one axial magnetic bearing is used in the axial direction to realize the support of five degrees of freedom. In this paper, the structure and working principle of axial magnetic bearing are introduced firstly, then the mathematical model is established by using equivalent magnetic circuit method, and the parameters are designed according to the requirement of performance index. Then, the magnetic field and force of axial magnetic bearing are analyzed and verified by Ansoft software. The control system of axial magnetic bearing is designed, and the step response, floating and disturbance of the control system are simulated. The results show that the design of parameters is reasonable and the control system can realize the reliable and stable suspension of magnetic bearings.
【作者單位】： 江蘇大學(xué)電氣信息工程學(xué)院;
【基金】：江蘇省自然科學(xué)基金(BK2012707) 江蘇省“六大人才”高峰(2011-ZBZZ026) 江蘇省研究生科研創(chuàng)新計劃(CXZZ13_0682,SJLX_0466) 江蘇省高校大學(xué)生創(chuàng)新創(chuàng)業(yè)訓(xùn)練計劃(201410299014Z)
【分類號】：TM315

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本文編號：2016736