constant-frequency中文是什么意思

發(fā)音:

中文翻譯
造句

恒定頻率

constant adj. 1.恒定不變的，固定的，穩(wěn)定的，恒久的；繼續(xù)不 ...
frequency n. 1.屢次，頻仍，頻繁。 2.(脈搏等的)次數(shù)，出現(xiàn) ...
constant frequency 恒頻
frequency constant 頻率常數(shù)
constant voltage and constant frequency 常壓恒頻裝置
constant voltage constant frequency 恒壓恒頻
constant-voltage and constant-frequency 穩(wěn)壓穩(wěn)頻
cvcf constant voltage constant frequency 恒壓恒頻
cf constant frequency 固定頻率
constant frequency ac 恒頻交流電
constant frequency alternator 恒頻交流發(fā)電機(jī)
constant frequency coil 穩(wěn)頻線圈
constant frequency control 恒定頻率控制; 穩(wěn)頻控制
constant frequency cyclotron 常頻回旋加速器
constant frequency oscillator 恒定頻率振蕩器
constant frequency output 恒頻輸出
constant frequency voltage control 恒頻電壓控制
constant rate frequency changer 定比變頻器
constant ratio frequency changer 恒比變頻器, 定比變頻器
constant-frequency oscillator 恒定頻率振蕩器
constant-frequency source 固定頻率震源
constant-frequency supply 恒頻供電
constant-ratio frequency changer 定比變頻器
doppler-shifted constant frequency 多普勒轉(zhuǎn)換頻率常數(shù)
frequency-dependent delectric constant 頻率相關(guān)介電常數(shù)

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例句與用法

Speed mode control of variable - speed constant - frequency wind energy generation system with double fed induction generator
變速恒頻雙饋風(fēng)力發(fā)電系統(tǒng)的速度模式控制
Variable - speed constant - frequency ( vscf ) operation is a new high efficient technology for power generation , which has a good future in the field of wind power generating
變速恒頻發(fā)電技術(shù)是一種新型高效的發(fā)電技術(shù)，在風(fēng)力發(fā)電領(lǐng)域有著良好的應(yīng)用前景。
The feasibility and superiority for the disc - type permanent - magnet synchronous generator used in the direct - dirve variable - speed constant - frequency generator applications is explained
解釋了將盤式永磁同步發(fā)電機(jī)應(yīng)用于直驅(qū)式風(fēng)力發(fā)電系統(tǒng)的可行性和優(yōu)越性。
The wind power generation technology also become research hotspot of many country ’ s scholar . and the direct - drive variable - speed constant - frequency ( vscf ) generation technology is paid attention to more and more for its high efficiency and practicability
它具有結(jié)構(gòu)緊湊、通風(fēng)效果好、轉(zhuǎn)動(dòng)慣量大和高效率等的特點(diǎn),比較適用于直驅(qū)式的變速恒頻的風(fēng)力發(fā)電系統(tǒng)中。
Based on research of wind turbine aerodynamic characteristics , this paper analyzed various control methods for a pitch - controlled system of variable - speed and constant - frequency wind turbine at a wind velocity range higher or lower its speed rating respectively
摘要在風(fēng)力機(jī)空氣動(dòng)力學(xué)特性分析的基礎(chǔ)上，討論了變速恒頻風(fēng)力機(jī)組變槳距機(jī)構(gòu)在低于額定風(fēng)速階段和高于額定風(fēng)速階段的不同控制策略。
The paper studies the pitch - regulated structure and stand - alone control system about mw wind turbine group . the background of the paper is " mw variable - speed constant - frequency wind turbine group ( no . 2001aa512022 ) " , which is supported by national 863 plan
本文以國家863計(jì)劃《兆瓦級變速恒頻風(fēng)電機(jī)組》 (課題編號： 2001aa512022 )為背景，主要研究了兆瓦級風(fēng)電機(jī)組的變槳距機(jī)構(gòu)及其單機(jī)控制系統(tǒng)。
In this article a new type wind generator - ac exited wind generator is introduced which new technology scheme by the variable - speed constant - frequency methods at the present time . the thesis mostly studies the way of some control methods and analysis the characters of vscf wind power system
本文全面介紹了一種最新應(yīng)用于風(fēng)力發(fā)電的變速恒頻技術(shù)、基于變速恒頻技術(shù)的新型電機(jī)?交流勵(lì)磁發(fā)電機(jī)及交流勵(lì)磁風(fēng)力發(fā)電機(jī)系統(tǒng)的各種控制原理。
The study indicates that there are some differences between the multilayered films and the uniform films in the dielectric constant - frequency relation and capacitance - voltage chara cteristics . the report also analyses the mechanism of dielectric enhancement of the multilayered thin films prepared by the sol - gel process
研究同時(shí)表明， batio _ 3 srtio _ 3多層膜與單層膜的介電頻率色散程度、 c - v特性和介電系數(shù)與溫度的關(guān)系均略有不同。
The paper has done all - around study on the ac excited of variable - speed constant - frequency ( vscf ) wind power generation . the author has done thorough study on the vscf wind power generation technology using wound - rotor doubly - fed induction generator , from simulation to experiment , from theory to practice . he also did at large theory analysis to the vscf wind power generation technology using cascaded brushless doubly - fed generator , and has established stability theoretical foundation for continue study work
本文對交流勵(lì)磁變速恒頻風(fēng)力發(fā)電領(lǐng)域的關(guān)鍵技術(shù)進(jìn)行了較為全面的從仿真到實(shí)驗(yàn)、從理論到實(shí)踐的深入研究，同時(shí)對具有廣泛潛在應(yīng)用前景的級聯(lián)式無刷雙饋發(fā)電機(jī)變速恒頻風(fēng)力發(fā)電技術(shù)也進(jìn)行了洋盡地理論分析，為今后進(jìn)一步的深入研究奠定了一定的理論基礎(chǔ)。
In this paper , several scheme of vscf is compared firstly , of which gets doubly - fed generating mode . doubly - fed vscf wind power generating system uses a doubly - fed induction generator , which rotate speed can be able to change with wind turbine , and it ensures a constant - frequency output , by controlling the frequency of current input into rotor windings . in vector trans control system , the control of stator active power and the control of stator reactive power can be essentially decoupled , and the former is via torque component and the latter is via exciting component of stator current
本文首先比較了幾種變速恒頻方案，從中選擇了雙饋式變速恒頻方案；它運(yùn)用雙饋電機(jī)的工作原理，允許發(fā)電機(jī)轉(zhuǎn)速變化，而在電機(jī)轉(zhuǎn)子側(cè)接入低頻勵(lì)磁電流，通過控制該電流的頻率，保證雙饋電機(jī)定子輸出的頻率恒定；再結(jié)合矢量控制技術(shù)，通過調(diào)節(jié)轉(zhuǎn)子電流來控制定子電流的轉(zhuǎn)矩分量和勵(lì)磁分量，相應(yīng)獨(dú)立地控制發(fā)電機(jī)輸出的有功功率和無功功率。

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