諧波產生 的英文怎麼說
中文拼音 [xiébōchǎnshēng]
諧波產生
英文
harmonic generation- 諧 : Ⅰ形容詞1 (和諧) in harmony; in accord; in tune 2 (詼諧) humorous Ⅱ動詞(商量好; 辦妥) come t...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 產 : Ⅰ動詞1 (人或動物的幼體從母體中分離出來) give birth to; be delivered of; breed 2 (創造財富; 生...
- 生 : Ⅰ動詞1 (生育; 生殖) give birth to; bear 2 (出生) be born 3 (生長) grow 4 (生存; 活) live;...
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An adaptive harmonic current calculation arithmetic for apf using pll - produced reference voltage
產生參考電壓的自適應諧波電流檢測方法In this paper, error sources and the relation between error source and transmission error of harmonic gear drive are deeply analyzed based on its working principle and structure. then synthesize these errors by using stochastic error theory to write out estimative formula that calculate transmission error
本文重點對諧波齒輪傳動的運動精度進行分析研究,從諧波齒輪傳動運動誤差的產生入手,首先對誤差源進行了深入分析,然後對運動誤差進行了分析和綜合。Because of the elements which run under nonideal linearity and unentire symmetry in the power system, the loads which are different and change randomly, the methods which adjust and control the system faultily and operate improperly, the disturbance and the malfunction which happen somewhere, the current and voltage in the supply system are distorted seriously and thus large amount of harmonics are produced
但是,由於電力系統元件運行的非理想線性或非完全對稱、負載的性質各異且隨機變化、調控手段的不完善以及錯誤操作、外來干擾和各種故障的存在,供電網中的電流(電壓)發生畸變,產生大量諧波。Abstract : temporal properties of the second - ordre process with a chirped incident pulse are theoretically calculated. the chirp influences the irradiance and the pulse shape of the second harmonic wave with large phase mismatch. the phase distortion of all three waves is dependent more strongly on the chirp than on the phase mismatch
文摘:討論了在大相位失諧下,基波為頻率啁啾脈沖的二次諧波產生過程,結果表明選取合適的啁啾參量可以使二次諧波的光強提高,但同時會使其波形和相位發生變化.三波相位的畸變主要取決于入射的基波啁啾脈沖,而與相位匹配的失諧量關系不大The point of common coupling ( pcc ) is a bus which connects the customer and utility. the research of harmonics and its components at pcc is a valid way to distinguish the responsibility between customer and utility and to manage the harmonic producer
公共耦合節點( pcc )是聯繫系統和用戶之間的那條母線,研究公共耦合節點處的諧波含量及其中的諧波成分是明確用戶和系統責任所在以及管理產生諧波用戶的一個行之有效的方法。Finally, the method of estimating power customer emission level based on binary linear regression is put forward, which make it a condition that harmonic emission is steady at the point of common coupling. combined with power system thevenin equivalent and customer norton equivalent, according to the principle of least squares method, the voltage that a customer ' s harmonic current begets at the point of common coupling can be estimated in the light of the plural correlation of network parameters
最後,提出了基於二元線性回歸的用戶諧波發射水平估計方法,該方法在假設公共聯接點諧波發射穩定的情況下,結合系統側戴維南等值與用戶側諾頓等值的電路圖,按照最小二乘法原理,利用電網各參數的復數關系推導關于系統側諧波阻抗的二元線性回歸方程,並根據諧波阻抗的估計值求取用戶諧波電流在公共聯四川大學碩士學位論文( 2003 )接點產生的電壓降。It is discussed that the present harmonic analyzers do n ' t satisfy the requirements of china standard for harmonic measure of quick disturbance harmonic load. the measurement error brought about by the harmonic analyzers adopting ft or fft algorithm is analyzed. a cycle discrete fourier algorithm that should n ' t be effected by aperiodic component is presented, and the results of simulation show that it has higher accureacy
本文對電力系統諧波的測量方法,數據處理及電力牽引負荷對電力系統的影響進行了研究,論述了目前國內外生產的諧波分析儀用於快速波動諧波負荷的測量不滿足國標的要求,分析了諧波分析儀普遍採用的ft或fft演算法所產生的測量誤差,提出了一種不受非周期分量影響的全周波離散傅里葉演算法,模擬結果表明精度好。In the distribution system, many capacitor banks are applied to decrease the loss of the network. the harmonic resonance may be incurred between the network and the capacitor banks in the harmonic frequency, thus the security of the system may be destroyed because of the high harmonic distortion level
配電網中裝設了大量的電容器進行無功優化來降低網損,但在諧波頻率下,容易產生系統與電容器之間的諧波諧振或諧波放大,從而使系統的諧波畸變率變大,破壞了系統的安全運行。This paper analyses the harm of power system harmonics. it also points out the significance of harmonics measuring and the developing condition of harmonics measuring device, and points out the significance of the research of this paper
論文分析了電力系統諧波產生的原因及其危害,指出諧波測量的重要意義及諧波測量裝置的發展狀況,說明本論文研究的重要意義。It is necessary to study the mechanism of harmonics generation, make sure the content and distribute of harmonics current in order to alleviate their harm to traction power system ' s component, equipments of protect and measure as well as other customer ' s electronics equipments
為了從根本上抑制電力牽引負荷諧波帶來的影響,削弱諧波對牽引供電系統主元件、保護測控裝置和其他用戶電子設備的影響,有必要研究電氣化鐵道牽引諧波產生的機理,確定饋線電流諧波的含量與分佈狀況。This paper discusses the problem of harmonic waves of the converter in running, and the countermeasures are also proposed
摘要本文針對變頻器運行中存在的諧波問題,分析諧波產生的原因及危害,並提出解決方法。Abstract : this paper analyzes the reason of harmonics appearance, the harm to power supply system, and raises the managing and technical measure to restrain the harmonics
摘要:文章分析了供電網諧波產生的原因,闡述了諧波對電氣設備的危害,提出了抑制諧波的措施。For more and more no - linear electoral devices are used in every day life, harmonic pollution in the power supply system becomes high and it causes lots of serious problems
隨著供電系統中各種類型的非線性負荷的不斷增加,電網中的諧波含有率變得越來越高,由諧波產生的各類事故也呈不斷上升的趨勢。The reasons and harm of high harmonics in the substation of electric arc furnace, and some measures of avoiding and decreasing the high harmonics are put forward after careful analysis
摘要通過對電弧爐變電所在運行過程中出現的現象進行分析研究,指出了高次諧波產生的原因及其危害,提出了防止和減少高次諧波的措施。So far we discuss the ionization and hhg of hydrogen atom by using numerical method in which the laser field is treated as a classical extent field. chapter five is another part of our work
這里,我們將激光場看成一含時的經典外場,採用數值計演算法來解含時schlodinger方程,對強激光場中氫原子的電離與高次諧波產生以及相關的一些現象進行了研究。We got the pl spectrum of zno nanowires using an 806nm fs laser act excited source based nonlinear optical process. the results showed the second harmonic generation ( shg ) phenomenon besides the exciton - exciton collision peak at 388nm, at
實驗中除388nm處的激子-激子碰撞峰之外,還觀測到了二次諧波產生( shg )現象,另外在515nm附近觀測到了由氧空位造成的綠光發射峰。The first chapter is our introdiction, which briefly discussed the progress on the laser - atom interaction studies in literatures. we stressed on the ionization, hhg and the applications in strong laser field. the chapter two presents microscopic theory and numerical model about hhg
第一章為綜述,簡要介紹了激光-原子相互作用問題的發展和研究現狀,其中著重介紹了強激光場中原子的電離和高次諧波產生的問題以及它們在實際中研究的意義。This paper introduces the causes of electric harmonic of electric power system and its harm to electric network and electric equipment, puts forward the comprehensive treating measures involving enhancing harmonic management, establishing and consummating automatic harmonic monitoring system and taking corresponding technical means
文章分析了電力系統諧波產生的原因,綜述了諧波對電網及電氣設備的危害,提出了綜合治理措施,即加強諧波管理,建立和完善諧波自動監測系統。We mainly investigate the second kind. linear stability analysis and numerical simulations will be used, and the evolution equation of a nonlinear resonator filled with kerr medium, the mean - field model for a nonlinear resonator filled with two - level atomic medium, second - harmonic generation system ( shg ) with quadratically nonlinear material, complex ginzburg - landau equation ( cgle ), and coupled map lattice model ( cml ) will be considered in this dissertation. the paper can be divided into three parts : pattern formation, pattern selection and control of stc, the synchronization and applications of stc
以含有kerr介質非線性光學諧振腔發展方程、含有二能級原子介質的非線性光學諧振腔平均場方程、含有x ~ 2介質的光學二次諧波產生系統模型、及復金茲伯格?朗道方程和耦合映射模型等動力學系統為例,採用線性穩定性分析及數值實驗方法,研究了斑圖形成、斑圖的選擇和時空混沌的控制、時空混沌的同步及其在保密通信方面的應用等三大部分內容。The simulation results show that to start the oscillation, the length of the resonance cavity must be well matched with the radial span of the cavity ; mismatch of them will greatly affect the microwave development ; the output power of the microwave in rtto is affected by the microwave mode obviously. under the same conditions, the output power for temooi mode is the highest, and its start and saturation time of oscillation are the shortest. the results also show that the output power will decrease with the increase of the size of the extract window ; the operating state of rtto has great close relationship with the operating current, and there exists an optimum current value
結果表明,束電壓一定時,諧振腔腔長和徑向間距必須良好匹配微波才能起振,匹配不佳會極大地影響微波產生;微波模式對微波產生功率影響很大,同等條件下, tem _ ( 001 )模式的微波功率最高,起振時間和飽和時間最短;微波輸出功率隨提取口的增大而減小; rtto工作狀態與工作電流的大小關系密切,存在一個最佳工作電流值。分享友人