求高人把中文摘要翻译成英文

不要机译的,哪位给翻译一下,不甚感谢...

铁磁谐振是一种电力系统中时常发生的自激振荡现象,产生的过电流与过电压对电力系统的安全稳定运行造成了很大的影响。变压器铁芯的饱和特性是引起铁磁谐振的原因,对变压器励磁电感特性的研究有助于预防和消除铁磁谐振,从而保证电力系统的安全运行。
文章就铁磁谐振现象及其发生机理进行了简要探讨,铁磁谐振对电力系统的影响做了简要分析。文章以二次侧开路的电压互感器为基本模型,从铁芯励磁电感的非线性入手,建立了谐振电路的数学模型,分析了铁磁谐振的工作点,用实验的方式再现了铁磁谐振的发生,测量获得了励磁特性的数据,绘制了励磁特性的伏安特性图,运用图解法。描述函数法,解析法进行了数学分析,结合实验数据,分析了不同频率。匝数,类型等铁芯下励磁电感特性的规律。并提出了预防于消除铁磁谐振的建议。

关键词:铁磁谐振;变压器;励磁特性;数学分析

Ferromagnetic syntony is one kind of the self exciting oscillating phenomenon often happening in electric system , overcurrent and overtension coming into being have caused very big effects on the electric system safety stabilizes operation. Saturated transformer iron core characteristic property is the cause arousing ferromagnetic syntony , encouraging magnetoelectricity feeling characteristic property go into to the transformer is helpful to the syntony taking precautions against and removing ferromagnetic , ensures that the electric system safety works thereby. Ferromagnetic article syntony phenomenon and their occurrence mechanism has carried out brief investigation and discussion , the impact of ferromagnetic syntony over electric system has done brief analysis. The article takes the voltage mutual inductance implement opening a way on repeated side as fundamental model, nonlinearity encouraging magnetoelectricity feeling from iron core have started , have built circuital mathematic model of syntony, the working spot having analysed ferromagnetic syntony , the occurrence using the experiment way to have reproduced ferromagnetic syntony, measure the data having gained excitation characteristic property, the volt-ampere characteristic property having drawn excitation characteristic property pursues , wields a graphical solution. Describing function law , analysis have followed the data having carried out mathematical analysis , being tied in wedlock an experiment , have analysed different frequency. The number of windings , the type wait for iron to encourage magnetoelectricity feeling characteristic property law under the core. And have submitted the suggestion preventing Yu from removing ferromagnetic syntony's.

Keywords: Ferromagnetic syntony; Transformer; Excitation characteristic property; Mathematical analysis
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第1个回答  2009-05-29
TV ferro-resonance in power system is a kind of self-excited oscillation often happens, from the current and voltage to the safe and stable operation of the power system caused great influence. The characteristics of transformer core is saturated by the reason of ferroresonance transformers inductance characteristic, the research helps to prevent and eliminate ferroresonance, so as to ensure the safe operation of the power system.
The phenomenon of ferroresonance and its mechanism are discussed briefly in power system, TV ferro-resonance makes a brief analysis of the influence. Based on the second side open-circuit voltage transformer is the basic model, from the core of the nonlinear excitation inductance resonant circuit established mathematical model, analyses the working, TV ferro-resonance in experimental way emersion the ferroresonance, measuring excitation characteristic obtained data, drawing the excitation characteristic, the volt-ampere characteristics using graphic method. Describing function method, analytical method of mathematical analysis, combined with the experiment data, analyzing the different frequencies. Ratios, type, under the excitation inductance characteristic of iron. And put forward to prevent ferroresonance in eliminating the suggestion.

Ferro resonance
Transformer,
Excitation characteristic
Mathematical analysis本回答被网友采纳
第2个回答  2009-05-29
Ferroresonance in power systems is a frequently occurring phenomenon of self-excited oscillation, resulting in the over-current and over-voltage on the power system of safe and stable operation have had a great impact. Characteristics of transformer core saturation is caused by the reasons for ferroresonance, transformer magnetizing inductance characteristics of the study contribute to the prevention and elimination of ferromagnetic resonance, in order to ensure the safe operation of power systems.
Ferroresonance article on the phenomenon and its mechanism are briefly discussed Ferroresonance impact on the power system to do a brief analysis. Article to the second side of the open-circuit voltage transformer for the basic model, from the core excitation of the nonlinear inductance approach and establish a mathematical model of the resonant circuit, an analysis of the work of ferroresonance point, the way the experiment again with a ferromagnetic the occurrence of resonance, the excitation characteristics of measurement data, mapping of the voltammetric characteristics of the excitation characteristics of maps, the use of graphic method. Describing function method, analytical method for the mathematical analysis, combined with the experimental data, an analysis of different frequencies. Turns, the type of core characteristics under the excitation of the law of inductance. And put forward in the elimination of ferroresonance prevention recommendations.

Keywords: Ferromagnetic resonance; transformer; excitation characteristics; mathematical analysis
第3个回答  2009-05-29
Ferroresonance in power systems is a frequently occurring phenomenon of self-excited oscillation, resulting in the over-current and over-voltage on the power system of safe and stable operation have had a great impact. Characteristics of transformer core saturation is caused by the reasons for ferroresonance, transformer magnetizing inductance characteristics of the study contribute to the prevention and elimination of ferromagnetic resonance, in order to ensure the safe operation of power systems.

Ferroresonance article on the phenomenon and its mechanism are briefly discussed Ferroresonance impact on the power system to do a brief analysis. Article to the second side of the open-circuit voltage transformer for the basic model, from the core excitation of the nonlinear inductance approach and establish a mathematical model of the resonant circuit, an analysis of the work of ferroresonance point, the way the experiment again with a ferromagnetic the occurrence of resonance, the excitation characteristics of measurement data, mapping of the voltammetric characteristics of the excitation characteristics of maps, the use of graphic method. Describing function method, analytical method for the mathematical analysis, combined with the experimental data, an analysis of different frequencies. Turns, the type of core characteristics under the excitation of the law of inductance. And put forward in the elimination of ferroresonance prevention recommendations.
这是关键字:Ferroresonance; transformer; excitation characteristics; mathematical analysis
第4个回答  2009-05-29
TV ferro-resonance in power system is a kind of self-excited oscillation often happens, from the current and voltage to the safe and stable operation of the power system caused great influence. The characteristics of transformer core is saturated by the reason of ferroresonance transformers inductance characteristic, the research helps to prevent and eliminate ferroresonance, so as to ensure the safe operation of the power system.
The phenomenon of ferroresonance and its mechanism are discussed briefly in power system, TV ferro-resonance makes a brief analysis of the influence. Based on the second side open-circuit voltage transformer is the basic model, from the core of the nonlinear excitation inductance resonant circuit established mathematical model, analyses the working, TV ferro-resonance in experimental way emersion the ferroresonance, measuring excitation characteristic obtained data, drawing the excitation characteristic, the volt-ampere characteristics using graphic method. Describing function method, analytical method of mathematical analysis, combined with the experiment data, analyzing the different frequencies. Ratios, type, under the excitation inductance characteristic of iron. And put forward to prevent ferroresonance in eliminating the suggestion.

Keywords: ferroresonance, Transformer, Excitation characteristic, Mathematical analysis
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