振蕩電阻 的英文怎麼說
中文拼音 [zhèndàngdiànzǔ]
振蕩電阻
英文
timing resistor- 振 : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
- 蕩 : Ⅰ動詞1 (搖動; 擺動) swing; sway; wave 2 (無事走來走去; 閑逛) loaf; wander; roam; loiter; go a...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 電阻 : (物質阻礙電流通過的性質) resistance; electric resistance (電路中兩點間在一定壓力下決定電流強度...
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Torsional interaction exists between hvdc converters and turbine - generators, and negative electrical damping provided by hvdc may cause subsynchronous oscillation ( sso ) that can lead to turbine - generator shaft failure and electrical instability at oscillation frequencies lower than the fundamental system frequency
高壓直流輸電( high - voltage - direct - current - - - - hvdc )系統與臨近同步發電機組之間存在著扭振相互作用, hvdc的電氣負阻尼作用有可能引起機組在次同步頻率范圍的扭轉振蕩。Bai shi new development over the years, the company ' s products are mainly trade sales world - renowned brands ; has formed a production and supply of quartz crystal and ceramic capacitors, thick film resistors based serial production lines. main products include : plug posted quartz crystal surface, the surface of quartz crystals and crystal oscillators, posted plug surface, quartz oscillator vco, stickers and vco plug - round version of ceramic capacitors and vertical and horizontal layer ceramic capacitors, chip resistors and resistor ranked / exclusion order and capacitance / second polar body / mixed network
新佰仕經過多年的發展,公司貿易的產品主要銷售世界知名品牌電子元器件;現已形成了以生產及供應石英晶體?陶瓷電容器?厚膜電阻器為主的系列化產品生產線,主要產品包括:表面貼石英晶體?插件石英晶體?表面貼石英振蕩器?插件石英振蕩器?表面貼壓控振蕩器?插件壓控振蕩器?圓版型陶瓷電容?立式與臥式積層陶瓷電容?排列電阻器?晶元電阻/排阻?排列電容/二極體/混合網路。The damper is mounted on the free end of the rotor. the experiments done show that the oil whip can be good damped by the passive electromagnetic damper
在理論計算的基礎上還進行了實驗研究,在不停機的條件下,通過被動式電磁阻尼器成功地在線消除了系統的油膜振蕩。Modelling method research of rlc damping - oscillatory ircuits based on matlab7
阻尼振蕩電路建模方法研究The system parameters are developed at the same time, and some universal conclusions on the theoretical analysis of pll are reached. then, we have carried on analysis and research to the theory of differential delay ring voltage controlled oscillator ( vco ). on this basis, a improved differential delay ring vco with more efficient loads is described. this circuit has been designed and implemented in 0. 35 m cmos technology
本文還對差分延遲結構環形壓控振蕩器電路進行了深入的分析與研究,並提出了一種基於高質量電阻電路的主從差分延遲結構環形壓控振蕩器,其採用了一種新型的主從差分延遲結構,並用一個更有效、更穩定的負載電阻電路結構來替代vco設計常使用的單個mos管電阻結構,使其系統穩定性有了相應提高。It follows that with the voltage on, the losses are high, so oscillation is prevented.
由此可見,加上電壓后,損耗增大,因此振蕩受到阻止。According to these theories we know the reason of the emergence of low frequency oscillation is lacking positive damping even appearing negative damping. this problem can be classified as dynamic stability
從而得出,電力系統低頻振蕩是由於系統正阻尼不足甚至產生負阻尼而引起的,可以將其歸類為動態穩定問題。Through the deep study of f. d. demello dynamic model of electromechanical transition and synchronous generator theory, we proposed a new control strategy of excitation device that can eliminate the negative - damping phenomenon, which is directly against the cause of producing negative - damping represented as low frequency oscillation in the system
通過深入研究f . d . demello機電暫態的動力學模型以及同步發電機理論,針對系統產生負阻尼即低頻振蕩的原因,我們提出了一種新的可消除負阻尼現象的勵磁控制策略。On the contrary, because of the effect of positive damping provided by the inverter, the unit near a inveter will have no subsynchronous oscillation risk. based on the same method described above, a damping study is carried out for a hybrid ac / dc system, which include a hvdc link and an ac transmission line in parallel
研究表明,系統整流站附近的同步發電機組要承受電氣負阻尼作用,因此有可能引起機組低頻扭轉振蕩模式失穩;而hvdc的逆變站向其臨近同步發電機組提供正阻尼,因而機組不存在次同步振蕩危險。The characteristics of damping shows that the uncompensated parallel ac transmission line can release the coupling between the hvdc and generator and improve the damping of the system, hence the possibility of subsynchronous oscillation decrease. in such a system scheme, the hvdc system dominates the changes of damping due to the small magnitude of the damping provided by ac line. when the ac transmission line is compensated with a fixed series capacitor, the situation will be totally different
其中,並列運行的無串補交流輸電線路可以緩解hvdc與其臨近機組之間的機電耦合程度,改善hvdc的電氣負阻尼特性,從浙江大學博士學位論文摘要而減輕機組發生次同步振蕩的危險性,此時系統的整體電氣阻尼特性由hvdc的性質決定;但若交流線路中存在串聯補償電容,則系統幅值較大的電氣負阻尼不僅可能使整流站機組發生次同步振蕩,逆變站附近機組同樣存在發生次同步振蕩的可能性,此時系統的整體阻尼特性由串聯補償電容的性質決定。Electromagnetic compatibility - testing and measurement techniques - damped oscillatory magnetic field immunity test
電磁兼容試驗和測量技術阻尼振蕩磁場抗擾度試驗Electromagnetic compatibility - part 4 - 10 : testing and measurement techniques - damped oscillatory magnetic field immunity test
電磁兼容性.第4 - 10部分:試驗和測量技術.阻尼振蕩磁場抗擾性試驗Emc electromagnetic compatibility - testing and measurement techniques - damped oscillatory magnetic field immunity test - basic emc publication
電磁兼容性.第4部分:試驗和測量方法.第10節:阻尼振蕩磁場抗擾試驗.基本電磁兼容性Emc electromagnetic compatibility ; part 4 : testing and measurement techniques ; section 10 : damped oscillatory magnetic field immunity test ; basic emc publication
電磁兼容性.第4部分:試驗和測量方法.第10節:阻尼振蕩磁場抗擾試驗.基本電磁兼容性Unified power flow controller ( upfc ) is one of the most powerful and most promising controllers of facts. if we use upfc to control the transmission parameters, terminal voltage, line impedance and phase angle in normal situation and use it to compensate zero sequence and negative sequence currents when one of transmission lines is cut off, we can implement two phases operating in high voltage transmission lines, which can improve stability and reliability for the transmission system
統一潮流控制器( upfc )是功能最強、最具發展潛力的靈活交流輸電系統( facts )控制器之一,如果在常規條件下,用upfc實現輸電線路的電壓調節、移相、潮流控制、阻尼振蕩等功能,在發生單相永久性接地或單相斷路故障時,由傳統的三相跳閘改為單相跳閘,用upfc的並補來濾除兩端系統的零序和負序電流,用upfc的串補來提高輸電線的傳輸功率,以實現兩相長期運行,那麼輸電系統的穩定性、可靠性將大大提高。Design of supplemental sub - synchronous oscillation damping control based on h robust control theory of hvdc system
魯棒控制理論的高壓直流輸電系統附加次同步振蕩阻尼控制設計Abstract : a two - pole axially - laminated anisotropic ( ala ) rotor reluctance motor, with a high saliency ratio, is de - veloped. based on it, the performance characte istics of the motors are investigated with open - loop operation. it is proposed that an intensive oscillation occurs at low speed, corresponding to the frequency supplied a little greater than the natural one of the system
文摘:研製了一臺高凸極比的兩極ala轉子磁阻同步電動機,實驗研究了電機的開環運行特性,研究結果表明電機開環運行時存在一個比較嚴重的低頻振蕩,這個振蕩發生在電機電源頻率略大於電機的自然頻率后的某一頻段,且會導致電機失去同步When this fault is cutted off and the breaker is reclosed, this scheme ca n ' t start by mistake. the availability of this scheme is proved with matlab test. the single phase high - impedance grounding fault is settled properly
Matlab模擬分析證明了該方案耐受過渡電阻的能力強,在故障切除和重合閘時不會因出現的暫態信號而誤啟動,不受系統振蕩、頻率偏差的影響,克服了常規保護靈敏度不足的缺點,較好地解決了單相高阻接地故障的難題。In order to deal with oscillation and fault resistance, the paper presents a new method of adaptive distance relay protection based the above relay protection
同時對系統振蕩和過渡電阻對保護的影響進行了研究,提出了一種自適應距離保護模型。By means of eigen - analysis, this paper presented the careful research for the damping characteristic of low frequency oscillation in power system
本文基於特徵值分析法,對電力系統低頻振蕩的阻尼特性問題進行了深入的研究。分享友人