基于電流分析的四相開關磁阻電機氣隙偏心故障綜合檢測方法
發(fā)布時間:2018-05-18 21:41
本文選題:氣隙偏心 + 正弦脈沖注入法 ; 參考:《電工技術學報》2015年06期
【摘要】:氣隙偏心故障是開關磁阻電機常見故障之一,易導致電機產(chǎn)生不平衡磁拉力,使振動及噪聲惡化,影響電機輸出性能。本文基于開關磁阻電機電路方程,得到氣隙長度與非勵磁相電流的函數(shù)關系式,利用2D-TFEM計算電機處于正常狀態(tài)及不同偏心等級情況下非勵磁相電流,通過對比,得到不同情況的相電流差值,并提出一種以非勵磁相電流差值為特征量的氣隙偏心故障檢測方法。該法能夠實現(xiàn)偏心故障發(fā)生、故障相定位及偏心類型辨別的綜合檢測。仿真與實驗結果表明,該法與其他檢測法相比,無需增加任何外加電路及傳感器,節(jié)約檢測成本,且具有較高準確性、可靠性及魯棒性。
[Abstract]:The air gap eccentricity fault is one of the common faults of switched reluctance motor, which can easily lead to unbalanced magnetic pull force, worsen the vibration and noise, and affect the output performance of the motor. Based on the circuit equation of switched reluctance motor (SRM), the functional relationship between air gap length and unexcited phase current is obtained. The unexcited phase current in normal state and different eccentricity of motor is calculated by 2D-TFEM. The phase current difference of different cases is obtained, and an air gap eccentricity fault detection method based on the unexcited phase current difference is proposed. This method can be used to detect eccentricity fault, fault phase location and eccentricity type discrimination. The simulation and experimental results show that compared with other detection methods, this method does not need any additional circuits and sensors, and it saves the cost of detection, and has higher accuracy, reliability and robustness.
【作者單位】: 天津商業(yè)大學信息工程學院;河北工業(yè)大學控制科學與工程學院;河北工業(yè)大學電子信息工程學院;
【基金】:國家科技支撐計劃(2011BAA07B04) 河北省自然科學青年基金(F2013202102)資助項目
【分類號】:TM352
【參考文獻】
相關期刊論文 前8條
1 徐從裕;余曉芬;程伶俐;;圓筒型永磁同步直線電機偏心驅動模式下的納米定位控制[J];電工技術學報;2010年06期
2 孫曉東;陳龍;楊澤斌;朱q,
本文編號:1907316
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