parallel oscillation 中文意思是什麼
parallel oscillation
解釋
並聯振蕩- parallel : adj 1 平行的；并行的 （to; with）; 【電學】並聯的。2 同一方向的，同一目的的。3 相同的，同樣的，相...
- oscillation : n. 1. 【物理學】振蕩，擺動，振動；振幅。2. 動搖，猶豫，仿徨。3. 蹣跚。4. 【無線電】發雜音。
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Because central potentials of four y windings in 12 - phase generator are not equal each other and there is no common reference inside the generator, it is difficult to identify the on / off of rectifying elements. in this paper, by using a mathematical model with line voltage substitute for phase voltage, the problem that there is no common reference in the 12 - phase generator with rectifier is solved. based on results of the studies on small prototype, 920kw charging generator applied in a submarine is improved in design, and therefore power oscillation with high magnitude when two generators are operating in parallel
由於十二相發電機中四個y繞組的中點電位不等，電機內部沒有公共參考點，從而在判斷整流元件導通時，不能象三相同步發電機整流系統那樣認為陽極電位最高或陰極電位最低的整流元件導通，本文採用了以線電壓代替相電壓建立十二相整流發電機的數學模型，從而解決了十二相發電機無公共參考點的問題。 -
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。 -
This will give the oscillation or width of fluctuation in a parallel between the 45 & ordm ; angle from the bottom and the 45 & ordm ; angle running up from the top
這將給出在從底部開始的45角度線和從高點向上走向的45角度線之間平行的的振動或是波動的幅度。 -
The torsional interaction from the electrical couplings among the generating sets is presented and the influence of the natural torsional frequency of the generating sets on the torsional oscillation characteristics is described. the torsional dynamics between identical parallel turbine - generators are deduced as well as that between non - identical parallel turbine - generators. then the basic principle of equivalent simplification of generating units for different operational condition is summarized
（ 2 ）介紹了多機電力系統機組間電氣耦合對軸系扭振特性的影響，以及機組自然頻率與機組扭振相互作用的關系，並對復雜系統中並列運行的相同發電機和不同發電機間的扭振相互作用進行了分析，歸納了不同運行條件下機組等值簡化的基本原則。
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