branch n. 1.(樹)枝〔泛指大枝或小枝;bough 特指大枝,也指連花、果折下的枝;limb 指大枝;twig 指小枝〕。 2.支脈;支派;支管;支線;(家族的)支系;【語(yǔ)言學(xué)】(語(yǔ)系的)支,族。 3.(學(xué)科)分科;部門,支部,分部,分行;分店。 4.〔美國(guó)〕支流,小河,小川。 5.【電學(xué)】分流;【計(jì)算機(jī)】轉(zhuǎn)移。 the branchs of a deer's antelers 鹿角的岔枝。 branch road 岔道。 the various branches of learning 各門學(xué)科。 the executive branch of the government 政府的行政部門。 an overseas branch 海外分店。 the Germanic branch of the Indo-European language family 印歐語(yǔ)系的日耳曼語(yǔ)族。 a party branch 黨支部。 root and branch 徹底的[地]。 vi. 1.(樹)出枝,開叉。 2.分部,分門;分岔;分支。 The main road branches off to the left. 大道向左分出一條岔路。 Numerous lesser roads branched off from the main highway. 從主要公路上分出無(wú)數(shù)小道。 vt. 1.使分枝。 2.用枝、葉、花等圖案裝飾(織物)。 branch forth (樹)擴(kuò)展枝葉;(商店等)擴(kuò)展分支機(jī)構(gòu)。 branch off [away] (道路等)分叉,岔開。 branch out 1. (樹)發(fā)枝,長(zhǎng)出枝條;(話等)橫生枝節(jié)。 2. (事業(yè)等)擴(kuò)大規(guī)模。 His firm branched out to New York. 他的公司把分支機(jī)構(gòu)擴(kuò)大到了紐約。
current adj. 1.通用的,流行的。 2.現(xiàn)在的,現(xiàn)時(shí)的,當(dāng)時(shí)的。 3.流暢的;草寫的。 the current price 市價(jià)。 current news 時(shí)事。 current expenditure 經(jīng)常費(fèi)。 current expenses 日常費(fèi)用。 the current issue [number] (雜志的)本期。 the current week 本星期。 the current year 今年。 the 10th current [curt.] 本月十日。 current account 往來(lái)存款賬;【法律】交互計(jì)算。 current English 現(xiàn)代通行英語(yǔ),日常英語(yǔ)。 current handwriting 草書。 current money 通行貨幣。 current rate 現(xiàn)價(jià),成交價(jià)。 current thoughts 現(xiàn)時(shí)代思潮。 pass [run, go]current 通用,流行。 n. 1.水流;氣流;電流。 2.思潮,潮流;趨勢(shì),傾向。 3.進(jìn)行,過(guò)程。 a cold current 寒流。 the Japan current 日本海流,黑潮。 the great current of events 天下大勢(shì)。 a density 密著(海)流。 an alternating [a direct] current 【電學(xué)】交[直]流電。 current of air 氣流。 current of time [the times] 時(shí)勢(shì),時(shí)代潮流 (go [swim] with [against] the current of the times 順應(yīng)[違反]時(shí)勢(shì))。
Also , a calculation model for instantaneous branch current is proposed , and is verified by examples . che lizhi ( power system and its automation ) directed by prof 提出了計(jì)算電力系統(tǒng)任意時(shí)刻分支短路電流的計(jì)算模型,并通過(guò)實(shí)例驗(yàn)證了算法的正確性。
Kirchhoff ' s current law is applied to describe the relationship of branch currents that flow into or out a same node and it reveals the essential law of conservation of electric charges 基爾霍夫電流定律用來(lái)描述流入或流出同一個(gè)節(jié)點(diǎn)支路電流的關(guān)系;它揭示了電荷守恒定律的本質(zhì)。
Basic principle of the simplification is detailed . feed lines with branches is also discussed . the proposed approch is verified by branch current based power flow calculation 論述了簡(jiǎn)化分析的基本原理,并采用支路電流法驗(yàn)證了該方法的可行性,還討淪了帶有支線的饋線的處理問(wèn)題。
In a circuit system , the elements , that have a same current exactly , compose a basic branch , and the current flowing through the elements , is called a basic branch current and is simply called a branch current 在電路系統(tǒng)中,流過(guò)相同電流的各元件組成一條基本支路,流過(guò)這些元件的電流稱為基本支路電流,簡(jiǎn)稱支路電流。
This paper deeply analyses the power flow mothod of a distribution network , and chooses the branch - current method which has a high computation speed and good convergent based on the fact situation of the optimization problem . also , the mechanism prove on convergence of branch current is presented 本文對(duì)配網(wǎng)潮流方法進(jìn)行了較系統(tǒng)深入的理論分析,并根據(jù)優(yōu)化問(wèn)題實(shí)際,選擇確定了收斂性好、計(jì)算速度快的支路電流計(jì)算方法,并給出其收斂性機(jī)理證明。
For this reason , the general algorithm on fault calculation is researched in protection relay setting , and fast calculation on branch current is put forward for the first time in this paper . so the complete and quick fault analysis is provided for protection setting 為了滿足工程實(shí)際需求,本文作者積極探索了面向繼電保護(hù)整定計(jì)算的通用故障分析算法,首次提出了適用于任意故障類型的支路電流的快速算法,為保護(hù)定值的整定計(jì)算提供了完備而快速的故障分析方法。
This paper discusses and analyses several principal points affecting the performance of regular distance protection , such as the fault resistance , the branch current , the zero sequence mutual coupling and so on . then some concrete application of adaptive concept to distance protection will be analyzed and studied 本文對(duì)于影響常規(guī)距離保護(hù)性能的一些主要因素如過(guò)渡電阻、分支電流和零序互感等進(jìn)行了分析和討論,在此基礎(chǔ)上對(duì)于自適應(yīng)思想在距離保護(hù)上的一些具體應(yīng)用進(jìn)行了分析和研究。
A new viewpoint to observe the relation of bus voltage , bus current injection and branch current of the network considering branch mutual inductance has been provided in this paper . the process of building the z - matrix of a large - scale power network is set forth in particular in this paper . and the method is employed in the fault computation system successfully 本文為了從算法上提高故障計(jì)算的速度,在完全計(jì)及支路互感的前提下,利用節(jié)點(diǎn)注入電流與支路電流以及支路電流與節(jié)點(diǎn)電壓的關(guān)系,提出了一種能夠統(tǒng)一處理互感和無(wú)互感線路、快速形成大規(guī)模電網(wǎng)節(jié)點(diǎn)阻抗矩陣的新方法。
But due to the existence of the fault resistance , the branch current , the zero sequence mutual coupling and so on , the apparent impedances and protection scope of distance protection will change , thereby affecting the performance of distance protection and the safety operation of power system 然而,由于過(guò)渡電阻、分支電流和零序互感等因素的影響,會(huì)改變距離保護(hù)測(cè)量阻抗的大小,造成距離保護(hù)動(dòng)作范圍的擴(kuò)大與縮小,從而影響距離保護(hù)的性能,威脅電力系統(tǒng)的安全運(yùn)行。