FB--515醫(yī)用變頻調速制冷電容起動電動機設計

電氣自動化論文編號:ZD370  論文字數(shù):22589,頁數(shù):58，有開題報告，任務書，文獻綜述，CAD圖

目  錄
摘    要……………………………………………………………………………………I
Abstract……………………………………………………………………………………I
第1章  緒論………………………………………………………………………………1
 1.1電冰箱的種類及發(fā)展趨勢………………………………………………………1
 1.1.1電冰箱用壓縮機的工作原理及變頻電機的設計…………………………1
 1.2壓縮機電機的現(xiàn)狀………………………………………………………………3
 1.3變頻技術研究現(xiàn)狀及發(fā)展………………………………………………………5
      1.3.1變頻技術現(xiàn)狀………………………………………………………………6
   1.3.2變頻技術發(fā)展狀況…………………………………………………………7
第2章  單相電容起動異步電動機設計…………………………………………………7
 2.1單相異步電動機的工作原理及特點……………………………………………7
 2.1.1單繞組的轉子磁場和電磁轉矩……………………………………………10
 2.1.2單繞組的定子磁場和電磁轉矩……………………………………………11
 2.2單相電容啟動異步電動機的工作原理及特點…………………………………17
 2.3壓縮機電機的工作原理及特點…………………………………………………17
第3章  電容啟動電動機電磁方案設計………………………………………………20
 3.1數(shù)據(jù)與技術要求…………………………………………………………………20
 3.2重要尺寸及沖片…………………………………………………………………21
 3.3主繞組設計計算…………………………………………………………………23
 3.4主相參數(shù)計算……………………………………………………………………24
 3.5磁路計算…………………………………………………………………………30
 3.6鐵耗和機耗計算…………………………………………………………………34
 3.7副繞組設計計算…………………………………………………………………35
 3.8起動性能計算……………………………………………………………………36
 3.9運行性能計算……………………………………………………………………37
 3.10有效材料用量……………………………………………………………………41
第4章  變頻系統(tǒng)設計……………………………………………………………………43
 4.1變頻調速的原理及變頻調速電機的應用前景……………………………………43
4.1.1變頻調速的原理………………………………………………………………43

  4.1.2變頻調速電機的應用前景…………………………………………………45
 4.2電容啟動電動機電路和變頻電路的選用………………………………………45
     4.2.1電容啟動電動機電路……………………………………………………45
 4.2.2變頻電路的選用……………………………………………………………46
 4.3單相電容電機變頻調速原理…………………………………………………….47 
 4.4單相電機變頻調速系統(tǒng)的實現(xiàn)……………………………………………………48
4.4.1 PWM信號生成電路…………………………………………………………….48
4.4.2驅動電路…………………………………………………………49
參考文獻……………………………………………………………………………………50
致    謝……………………………………………………………………………………51
附    錄………………………………………………………………………………….52
 定子沖片……………………………………………………………………………..53
 定子繞組展開圖………………………………………………………………………54
 轉子沖片………………………………………………………………………………55
 總裝圖…………………………………………………………………………………56

摘  要：制冷壓縮機為制冷設備的動力之源，變頻冰箱使用了變頻壓縮機，該種變頻壓縮機采用了可調速電機。通過改變電動機的轉速來改變壓縮機的制冷量。變頻壓縮機采用無刷直流電動機，本文對制冷壓縮機用單相異步電動機的設計、變頻調速等方面進行了探討分析，并對提高電動機效率以及減小噪聲提出了相關建議和措施。隨著變頻技術日趨成熟，變頻壓縮機具有能夠迅速﹑連續(xù)地提供制冷，提高效率，降低噪音，提高運行可靠性等優(yōu)點,成為新一代制冷設備的發(fā)展趨勢。
 關鍵詞：變頻調速；制冷；電容啟動；單相異步電動機
 

FB-515 Medical use frequency conversion is it refrigerate electric capacity start design of motor rapidly to transfer
 ABSTRACT: Medicine uses refrigeration compressor as " heart "of the medical use refrigerator,It urges electrical machinery to consider that can be steady in a long-term in compressing the chassis that work reliably,And also reach the best match with compressing the organism ,thus improve the security of the compressor and performance index,obtain the greatest interests.Analyse the discussion in such as this text uses to the refrigeration compressor with the design , material of the single different step motor,And to improve motor efficiency and reduce noise get relevant suggestions and measures out of. With the development of electric and electronic technology,frequency conversion technology is becoming riper.There are the frequency conversion compressors rapidly.Offer refrigeration in succession,raise the efficiency,reduce the noise,improve such advantages as operation dependability ,etc,in order to become a new a developing direction with refrigeration equipment.So in carry on research to frequency conversion technology use from compressor too in the article originally.
 Keywords: Frequency conversion adjusts the speed; Refrigeration; The electric capacity start， Single different step motor