parallel adj. 1.平行的;并行的 (to; with); 【電學(xué)】并聯(lián)的。 2.同一方向的,同一目的的。 3.相同的,同樣的,相似的,對應(yīng)的。 a parallel instance [case] 同樣的例子[情況]。 His prudence is parallel to his zeal. 他固然謹(jǐn)慎,也同樣熱心。 run parallel with 和…平行。 n. 1.平行線[面]。 2.相似,類似;相似物,相當(dāng)?shù)娜薣物]。 3.比較,對比。 4.緯度圈,緯線。 5.【軍事】平行塹壕。 6.【印刷】平行號 〔‖〕。 7.【電學(xué)】并聯(lián)。 the parallel of altitude [declination, latitude] 平緯[赤緯,黃緯]圈。 draw a parallel between ... 在…之間作對比。 in parallel with 和…并行,和…對應(yīng)。 without (a) parallel 無與匹敵的。 vt. (-l(l)-) 1.使成平行;與…平行。 2.與…相匹[配得上,相應(yīng)]。 3.對比,比較… (with)。 n. -ism 【計算機】并行計算。
This control strategy makes the parallel inverters system synchronize well . output current - limiting is an important measure to guarantee normal operation of inverter 由于逆變電源的自身特點,逆變電源的輸出限流,是保證系統(tǒng)正??煽抗ぷ鞯闹匾胧?。
Through the analysis of different operating states , it is pointed out that a capacitive quasi - resonant state is a safe and efficient working condition for a parallel inverter 通過對并聯(lián)型諧振逆變器各種工作狀態(tài)的分析,得出其必須工作在容性近諧振狀態(tài)下才是安全可靠的結(jié)論。
Parallel inverters can expand capacity and realize redundancy in power supply system , so they are now considered as one of the most important part in the field of inverter technology 多臺逆變器并聯(lián)可實現(xiàn)大容量供電和冗余供電,因而被公認(rèn)為當(dāng)今逆變技術(shù)發(fā)展的重要方向之一。
This paper analyzes the high - frequency ( mhz ) multi - devices parallel inverter , and presents some useful results of simulation and experiment . firstly , series resonant inverter is selected by comparing two inverter circuits 本文主要針對頻率為mhz情況下采用功率mosfet為主器件的多管并聯(lián)逆變電源進行了理論分析、仿真和實驗研究。
Abstract : a new kind of variable frequency speed - governing experiment system which has the structure of two parallel inverters at dc bus and output of inverter driving two series asynchronous motors at the same shaft is presented in this paper 文摘:提出了一種雙逆變器直流母線并聯(lián)、變頻輸出驅(qū)動同軸串聯(lián)的兩臺異步電動機結(jié)構(gòu)的新型變頻調(diào)速實驗系統(tǒng)。
The load character and control object for a parallel inverter is analyzed , the conclusion that series and parallel resonant circuit are two antithetic circuits is pointed out , this provides a theoretical guide to the control circuit design for these two inverters 分析了并聯(lián)諧振逆變器的負(fù)載特性及控制目標(biāo),指出串并聯(lián)諧振逆變電路是兩種對偶電路,為這兩種逆變器控制電路的設(shè)計提供了理論指導(dǎo)。
How the parallel inverters share the output power is analyzed and a completely different conclusion is got that the output active power ' s difference and passive power ' s difference of two parallel inverters are relative to both the output voltage amplitude ' s difference and output voltage phase ' s difference of the two parallel inverters 接著對并聯(lián)逆變器的功率均分進行了建模分析、仿真分析和實驗驗證,得出一個同以往不同的結(jié)論:兩臺逆變器輸出的有功功率差和無功功率差與輸出電壓的相位差和幅值差都有關(guān)系。
This task is based on mosfet multidevices parallel inverter on hf ( lmhz - 2 . 5 mhz ) . it ' s very necessary to design the drive circuit and discuss problems that maybe occur on hf . this provides some experience for the designing and debugging of electrical source , reduce the cost and advancing efficiency 本課題就是基于這種需要,研究背景選定為高頻( 1mhz 2 . 5mhz )情況下采用功率mosfet為主器件的多管并聯(lián)逆變電源,因此高頻情況下的功率mosfet的驅(qū)動電路以及在并聯(lián)時出現(xiàn)的問題成為主要的研究對象,這些為以后電源裝置的設(shè)計調(diào)試、減少器件成本及提高工作效率提供良好的前期準(zhǔn)備。
The parallel inverters can expand the capacity so that they greatly improve the power system ' s flexibility and thus the system ' s volume and weight are remarkably reduced . the current stress of the power switch is considerably lessened which means higher reliability , lower cost and higher power density 多臺逆變器并聯(lián)實現(xiàn)擴容可大大提高系統(tǒng)的靈活性,使電源系統(tǒng)的體積重量大為降低,同時其主開關(guān)器件的電流應(yīng)力也可大大減少,從根本上提高可靠性、降低成本和提高功率密度。
A zero - voltage starting method is brought forward which switch the starting from separate exciting to self - exciting successfully ; pll ( phase lock loop ) technology is employed to realize the frequency tracing and constant phase angle control ; igbt driving and protective circuit suitable for parallel inverter is developed , which successfully solve the problem of time compensating and overlapping regulation for the driving signals ; a novel and practical over - voltage protective method for parallel inverters is presented which effectively avoid the possible over - voltage destroy to the inverter . xu haiwen ( power electronics and electric driving ) directed by senior engineer peng yonglong 提出了一種零壓啟動的他激轉(zhuǎn)自激方法;通過采用鎖相環(huán)技術(shù)實現(xiàn)了逆變器工作頻率的自動跟蹤和容性逆變角度的恒值控制;設(shè)計了適用于并聯(lián)諧振型逆變器的igbt驅(qū)動與保護電路,解決了驅(qū)動信號的時間補償以及重疊角的可調(diào)問題;提出了一種新穎、實用的逆變器過壓保護方法,有效地解決了并聯(lián)型諧振逆變器過壓保護這一難題。