3051CD2A22A1AB4I5S8M5   談?wù)劷涣麟姍C(jī)
交流電機(jī)一般分為同步和異步電機(jī)
1、交流同步電機(jī)：就是轉(zhuǎn)子是由永磁材料構(gòu)成，所以轉(zhuǎn)動(dòng)后，隨著電機(jī)的定子旋轉(zhuǎn)磁場(chǎng)的變化，轉(zhuǎn)子也做響應(yīng)頻率的速度變化，而且轉(zhuǎn)子速度=定子速度，所以稱"同步"。
2、交流異步電機(jī)：轉(zhuǎn)子由感應(yīng)線圈和材料構(gòu)成。轉(zhuǎn)動(dòng)后，定子產(chǎn)生旋轉(zhuǎn)磁場(chǎng)，磁場(chǎng)切割定子的感應(yīng)線圈，轉(zhuǎn)子線圈產(chǎn)生感應(yīng)電流，進(jìn)而轉(zhuǎn)子產(chǎn)生感應(yīng)磁場(chǎng)，感應(yīng)磁場(chǎng)追隨定子旋轉(zhuǎn)磁場(chǎng)的變化，但轉(zhuǎn)子的磁場(chǎng)變化永遠(yuǎn)小于定子的變化，一旦等于就沒(méi)有變化的磁場(chǎng)切割轉(zhuǎn)子的感應(yīng)線圈，轉(zhuǎn)子線圈中也就沒(méi)有了感應(yīng)電流，轉(zhuǎn)子磁場(chǎng)消失，轉(zhuǎn)子失速又與定子產(chǎn)生速度差又重新獲得感應(yīng)電流...所以在交流異步電機(jī)里有個(gè)關(guān)鍵的參數(shù)是轉(zhuǎn)差率就是轉(zhuǎn)子與定子的速度差的比率。
3、對(duì)應(yīng)交流同步和異步電機(jī)變頻器就有相映的同步變頻器和異步變頻器，伺服電機(jī)也有交流同步伺服和交流異步伺服，當(dāng)然變頻器里交流異步變頻常見(jiàn)，伺服則交流同步伺服常見(jiàn)。
伺服與變頻的一個(gè)重要區(qū)別
變頻可以無(wú)編碼器,伺服則必須有編碼器,作電子換向用，交流伺服的技術(shù)本身就是借鑒并應(yīng)用了變頻的技術(shù)，在直流電機(jī)的伺服控制的基礎(chǔ)上通過(guò)變頻的PWM方式模仿直流電機(jī)的控制方式來(lái)實(shí)現(xiàn)的，也就是說(shuō)交流伺服電機(jī)必然有變頻的這一環(huán)節(jié)：變頻就是將工頻的50、60HZ的交流電先整流成直流電，然后通過(guò)可控制門(mén)極的各類晶體管(IGBT，IGCT等)通過(guò)載波頻率和PWM調(diào)節(jié)逆變?yōu)轭l率可調(diào)的波形類似于正余弦的脈動(dòng)電，由于頻率可調(diào)，所以交流電機(jī)的速度就可調(diào)了(n=60f/2p，n轉(zhuǎn)速，f頻率，p極對(duì)數(shù)).

Honeywell TDC 3000 Five-slot Chassis Fan Assembly (51400646-100)
51400647-100 Honeywell TDC 3000 Ten-slot Chassis Fan Assembly (51400647-100)
51400667-100 Honeywell TDC 3000 LCN Interface (51400667-100)
51400669-100 Honeywell TDC 3000 Floppy Disc Controller (51400669-100)
51400700-100 Honeywell TDC 3000 Data Hiway Interface (51400700-100)
51400712-100 Honeywell TDC 3000 Five-slot Chassis Power Supply (51400712-100)
51400712-200 Honeywell TDC 3000 Ten-slot Chassis Power Supply (51400712-200)
51400910-100 Honeywell TDC 3000 Enhanced Memory (51400910-100)
51400955-100 Honeywell TDC 3000 Process Network Interface (51400955-100)
51400972-100 Honeywell TDC 3000 Keyboard Interface (51400972-100)
51400978-100 Honeywell TDC 3000 Processor (51400978-100)
51400997-100 Honeywell TDC 3000 PLC Gateway Interface (51400997-100)
51400997-200 Honeywell TDC 3000 Enhanced PLC Gateway Interface (51400997-200)
51401052-100 Honeywell TDC 3000 SPC Card (51401052-100)
51401072-200 Honeywell TDC 3000 QMEM-2 (51401072-200)
51401072-300 Honeywell TDC 3000 Enhanced Memory (51401072-300)
51401088-100 Honeywell TDC 3000 CNI Interface (51401088-100)
51401163-100 Honeywell TDC 3000 Process Network Modem (51401163-100)
51401286-100 Honeywell TDC 3000 Interface Card (51401286-100)
51401288-100 Honeywell TDC 3000 68020 w/2 mg (51401288-100)
51401288-200 Honeywell TDC 3000 68020 w/3 mg (51401288-200)
51401291-100 Honeywell TDC 3000 Low Power LCN (51401291-100)
51401496-100 Honeywell TDC 3000 Dual Node Fan Assembly (51401496-100)
51401497-100 Honeywell TDC 3000 Dual Node Power Supply (51401497-100)
51401551-200 Honeywell TDC 3000 68020 w/2 mg (51401551-200)
51401551-300 Honeywell TDC 3000 68020 w/3 mg (51401551-300)
51401551-400 Honeywell TDC 3000 68020 w/4 mg (51401551-400)
51401551-600 Honeywell TDC 3000 68020 w/6 mg (51401551-600)
51401551-800 Honeywell TD

1394-SJT10-C-RL
1394-SJT10-T-RL
1394-SJT22-A
1394-SJT22-C-RL
1394-SJT22-T
1394-SJT22-T-RL
1394-SR10
1394-SR10A
1394-SR36A
1394-SR36AF
1394-SR9A
1394-SR9AF
74102-303-51
74102-328-53
74102-343-51
74102-405
74102-405-53
74102-405-54
74102-588-51