fed fed1 feed 的過去式及過去分詞。 -upness 1.過飽吃飽。 2.極度厭倦。 n. 〔美俚,常作 F-〕聯(lián)邦調(diào)查局人員;聯(lián)邦政府(工作人員)。 the F- 〔美國(guó)〕聯(lián)邦儲(chǔ)備制 (= the Federal Reserve System)。
A software method of detecting the angle of slip of a doubly - fed motor 雙饋電機(jī)轉(zhuǎn)差角的軟件檢測(cè)方法
As this adjustable speed system of doubly - fed motor normally needs a bi - directional converter . it ' s control technique is complicated and it ' s cost is rather expensive 由于雙饋電機(jī)調(diào)速系統(tǒng)通常采用雙向變流器,控制技術(shù)復(fù)雜,成本較高,限制了它的應(yīng)用。
Doubly - fed motor adjustable speed is an advanced technique , which can be used in the adjustable speed of motor and generator of variational speed and constant frequency , also can realize the adjustment of power factor at the stator 雙饋電機(jī)調(diào)速是一種先進(jìn)的調(diào)速技術(shù),可用于電機(jī)的調(diào)速和變速恒頻發(fā)電,并能實(shí)現(xiàn)電機(jī)定子側(cè)功率因數(shù)的調(diào)節(jié)。
For this reason , it ' s application will be restricted . this paper designs a circuit topology structure of multi - functional converter , which contains rectifier , chopper and inverter , it can function in soft - starting , chopping and doubly - fed adjusting speed for doubly - fed motor 本文設(shè)計(jì)了一種適用于雙饋電機(jī)多種運(yùn)行狀態(tài)的多功能變流器的拓?fù)浣Y(jié)構(gòu),它將整流器、斬波器與逆變器結(jié)合在一起,能完成電機(jī)的軟啟動(dòng)、斬波、雙饋調(diào)速。