reference n. 1.(對委員、審查人等的)委托;委托項目[范圍]。 2.說到,論到,提到。 3.參考;參考書;附注,引證;基準(zhǔn),依據(jù);關(guān)系。 4.(關(guān)于人品、能力等的)查詢,咨詢,詢商;可供查問的人;證明人,介紹人;(身份、能力等的)證明書,介紹書,服務(wù)經(jīng)歷,鑒定書。 5.參看符號〔如 asterisk[*e], obelisk ?, section§, parallel‖, paragraph π等〕 (=reference marks)。 the commission's terms of reference 委員會的職權(quán)。 R- was made to me. 提到了我;所指的是我。 You make no reference to your plan in your letter. 你信里沒有提到你的計劃。 a book of reference=a reference book 參考書。 Who are your references 你的證明人都是誰? bear reference to =have reference to. give a reference to 提到,介紹。 have reference to 和…有關(guān)系。 in reference to 關(guān)于。 load one's pages with references (在著作中)引用大量參考資料[文獻]。 make reference to 說到,涉及,提到;參考;查問;介紹。 with reference to 關(guān)于。 without reference to 不管,不論(without reference to age or sex 無論男女老少)。 vt. 加注,附加注腳;給(書等)列出參考書目[注明資料來源]。
The control tactics of space voltage vector are investigated , and the simplified algorithm which judges the sector location of reference vector and calculates switch operation time is put forward . by analyzing the current hysteresis control , the relation between switch frequency , and hysteresis bandwidth and input inductance of pwm rectifier is deduced . by applying instantaneous power theory , the principle of pwm rectifier power control is analyzed , and the direct power control by matlab toolbox through estimating active power and reactive power with virtual flux is realized , and the simulation results prove that it is correct 對常用空間電壓矢量控制策略進行分析,提出了給定參考矢量所在區(qū)間判斷的簡化方法,以及電壓矢量作用時間的求取方法;分析了電流滯環(huán)控制策略,推導(dǎo)出開關(guān)頻率與滯環(huán)帶寬以及整流器輸入電感之間的關(guān)系;應(yīng)用瞬時功率理論分析pwm整流器功率控制原理,通過虛擬磁鏈估計有功功率和無功功率,用matlab實現(xiàn)了直接功率控制,并驗證了該控制方法的正確性。