| 詳細(xì)參數(shù) |
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矢量控制變頻調(diào)速的做法是將異步電動(dòng)機(jī)在三相坐標(biāo)系下的定子電流Ia、Ib、Ic、通過(guò)三相－二相變換，等效成兩相靜止坐標(biāo)系下的交流電流Ia1Ib1，再通過(guò)按轉(zhuǎn)子磁場(chǎng)定向變換，等效成同步坐標(biāo)系下的直流電流Im1、It1(Im1相當(dāng)于直流電動(dòng)機(jī)的勵(lì)磁電流；It1相當(dāng)于與轉(zhuǎn)矩成正比的電樞電流)，然后模仿直流電動(dòng)機(jī)的控制，求得直流電動(dòng)機(jī)的控制量，經(jīng)過(guò)相應(yīng)的坐標(biāo)反變換，實(shí)現(xiàn)對(duì)異步電動(dòng)機(jī)的控制。其實(shí)質(zhì)是將交流電動(dòng)機(jī)等效為直流電動(dòng)機(jī)，分別對(duì)速度，磁場(chǎng)兩個(gè)分量進(jìn)行控制。通過(guò)控制轉(zhuǎn)子磁鏈，然后分解定子電流而轉(zhuǎn)矩和磁場(chǎng)兩個(gè)分量，經(jīng)坐標(biāo)變換，實(shí)現(xiàn)正交或解耦控制。矢量控制的提出具有劃時(shí)代的意義。然而在實(shí)際應(yīng)用中，由于轉(zhuǎn)子磁鏈難以準(zhǔn)確觀測(cè)，特性受電動(dòng)機(jī)參數(shù)的影響較大，且在等效直流電動(dòng)機(jī)控制中所用矢量變換較復(fù)雜，使得實(shí)際的控制效果難以達(dá)到分析的結(jié)果。
【公 司】： 福建鴻飛達(dá)自動(dòng)化科技有限公司福建省福州市高新區(qū)新保路正榮財(cái)富中心SOHO B幢8樓
產(chǎn)品價(jià)格以電話或者QQ詢價(jià)為準(zhǔn)，發(fā)布價(jià)格不做參考，圖片也一樣
FX0N-24MR-001
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FX0N-40MR-001
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FX0S-10MR-001
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FX0S-14MT
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FX0S-20MR-001
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FX0S-30MR-001
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FX-16E-500CAB-R
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FX-16EX-A1-TB
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FX-16EX-V
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FX-16EYT-C
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