【摘要】：以大間隙磁力傳動系統(tǒng)的電磁體為研究對象,研究了電磁體鐵芯材料與結構參數(shù)對系統(tǒng)驅動能力的影響,確定了電磁體鐵芯采用Z10-T25取向硅鋼片可提高系統(tǒng)驅動能力;根據(jù)所建立的系統(tǒng)啟動過程動力學模型,研究了實現(xiàn)軸流式血泵快速平穩(wěn)啟動的加速控制方法,并將實驗數(shù)據(jù)與理論仿真解析結果進行了對比:在電磁線圈通電脈沖頻率從0Hz到150Hz的啟動過程中,血泵轉速從0r/min加速到9 000r/min,血泵出口壓力p和流量Q的實驗值均與理論仿真值變化趨勢一致。研究表明驅動系統(tǒng)可在4s以內(nèi)使軸流式血泵的輸出壓力和流量達到控制目標值。
[Abstract]:Taking the electromagnet of the magnetic drive system with large gap as the research object, the influence of the core material and structure parameters of the electromagnet on the driving ability of the system is studied. It is determined that the driving ability of the system can be improved by adopting the Z10-T25 oriented silicon steel sheet in the electromagnet core. According to the dynamic model of the system start-up process, the acceleration control method to realize the fast and steady start of the axial flow blood pump is studied. The experimental data are compared with the theoretical simulation results: during the start-up of the electromagnetic coil from 0Hz to 150Hz, the speed of the blood pump accelerates from 0r/min to 9 000 r / min. The experimental values of blood pump outlet pressure p and flow Q are consistent with the theoretical simulation values. The results show that the output pressure and flow rate of the axial flow blood pump can reach the control target value within 4 s.
【作者單位】： 長沙大學電子信息與電氣工程學院;長沙大學機電工程學院;
【基金】：國家自然科學基金資助項目(31271057) 湖南省自然科學基金資助項目(2016JJ6007) 湖南省教育廳重點科學研究資助項目(15A019,16A019) 長沙學院人才引進資助項目(SF1514)
【分類號】：TH139;TH38

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