簡諧波 的英文怎麼說
中文拼音 [jiǎnxiébō]
簡諧波
英文
simple harmonic wave-
Powerformer have some changes in constract with the conventional generator ， subsequently it also have some new problems in order to have an economical ， efficient ， credible development and application the structure and the philosophy of electromagnetism of powerformer will be on speaking terms changes electrical design ， magnetism design ， thermal design and structural design are have some new changes above all ， the electromagnetism parameter and the harmonic magnetomotive force of powerformer are studied in this paper first ， it mainly utilizes analytics to deduce formula of slot leakage reactance it considers three instances ， including monolayer - slot ， multilayer isometric - slot and multilayer anisometric - slot then ， the analytics and the fem are utilized to calculate slot leakage reactance of stator winding of prototype of powerformer and compare their results second ， the theory of utilitzing fem to calculate the reactance of powerformer is simply introduced ， including stable reactance ， transient and subtransient reactance specially ， the saturated influence of the stable reactance is considered then ， the results are analysed final ， it mainly introduces the influence of harmonic magnetomotive force of stator winding and analyses the harmonic magnetomotive force of stator winding then ， it mainly analyse harmonic magneto - motive force of stator winding through arranging various arrays of stator winding and observe their influence
基於上述原因，本文對powerformer的電磁參數以及定子繞組諧波磁勢進行了研究。首先是用解析法推導出powerformer定子繞組槽漏抗的計算公式，考慮了單層圓形半閉口槽、多層等半徑圓形半閉口槽和多層不等半徑圓形半閉口槽三種情況，並對powerformer樣機的定子繞組槽漏抗用解析法和有限元法進行了計算，並比較其結果；其次，簡要介紹了有限元法計算powerformer電抗參數的原理，包括穩態電抗、瞬態電抗和超瞬態電抗，對穩態電抗考慮飽和影響，對結果進行分析；最後，介紹定子繞組諧波磁勢對電機運行性能的影響並對定子繞組諧波磁勢進行了分析。然後通過對定子繞組進行不同排列來分析定子繞組諧波磁勢，看看繞組排列對諧波磁勢的影響。The high resolution and fast processing give xitron power analyzers the unique capability to perform complete iec - 1000 - 3 testing in a stand alone fashion. the user can select a simple pass fail type display, or report all harmonics per iec1000 - 3 - 2 for each of the individual classes
高解析度與快速處理使xitron功率分析儀能進行完整的iec1000 - 3測試，用戶可選取簡單的合格不合格顯示，或根據iec - 3 - 2標準記錄全部諧波的個別內容The simplest form of wave motion consists of the combination of a transverse simple harmonic vibration and a uniform translation.
波動的最簡單形式是橫向簡諧振動和勻速直線運動的組合。In this thesis, summarized the basic theories of fourier transformation and the fast fourier transformation that are generally adopted to detect and analyze the electric power harmonic in the electric power supply system. at the same time, summarized the even sample principle, the phenomenon of frequency mix, the window functions and the frequency leaking as so on, those are closely - related to sample from figure signal
簡要闡述了電力系統諧波檢測分析所普遍採用的傅利葉變換和快速傅利葉變換的基本理論以及與數字信號采樣密切相關的均勻抽樣定理、頻譜混疊現象、窗函數和頻譜泄漏等的基本理論。Summarized no - line loads and the present situations of the electric power harmonic pollution in the guangyuan district ' s electric power supply system ; explained the theories of fourier transformation and the fast fourier transformation those are widely adopted by majority scholars to examine and analyze the electric power harmonic in the electric power supply system. summarized the principle of even sample, the frequency mix phenomenon, the window functions and the frequency leaking as so on, those are closely - related to the figure signal
簡要闡述了電力系統諧波檢測分析所普遍採用的傅利葉變換和快速傅利葉變換的基本理論，簡要闡明了與數字信號采樣密切相關的均勻抽樣定理、頻譜混疊現象、窗函數和頻譜泄漏等的基本理論，同時闡述了電力系統的諧波檢測與分析的相關理論基礎知識。Fourthly, the solutions for non - axisymmetical dynamic responding of elastic circular plate ( thin and thick plate ) rested on transversely isotropic saturated half - space / layered ground subjected to arbitrary harmonic loading are presented. under the contact conditions, the problem leads to a pair of dual integral equations which describs the mixed boundary - value problem
首先建立直角坐標系下波動問題的狀態方程，經雙重fo吐er變換求解狀態方程后得到傳遞矩陣:利用遞矩陣給出直角坐標系下層狀橫觀各向同性飽和地基在任意分佈簡諧荷載作用下穩態動力響應的一般解。An algorithm based on the inner structural feature of the 8 - bit single chip microprocessor is presented to perform the space vector modulation, it is high efficiency in voltage - utilizing, low harmonic losses, fast in calculation speed, simple in over - modulation method, high ratio of capability to price
介紹一種用8位專用單片機內部結構特徵而設計的空間矢量調制演算法，不但具有電壓利用率高、諧波損耗小等優點，還具有計算速度快、過調制處理方法簡潔、性能價格比高等優點。The subject inducts digital time division technology ( pwm ), which is more advantageous at the accuracy and the predigest of hardware than simulant multiplication. what they call measuring power energy reasonably is that measuting except harmonics power energy fed back power. yet it realizes reasonable measurement of power energy which measures by base wave ac parameters method base on digital time division
本課題引入了數字時分割（ pwm ）脈寬調制技術，在測量的準確性、硬體電路的簡化等方面都比模擬乘法器具有較高的優越性。所謂合理的計量電能，就是不計非線性負載回饋給電網的負的諧波電能，而採用基於數字時分割的基波交流參數測量的方法，真正實現了電能的合理計量。When the axial speed varies harmonically about a constant mean one, the method of multiple scales is applied to the axially moving beam to determine the instability boundary due to parametric resonance
當軸向運動速度在其常平均值附近作簡諧波動時，應用多尺度法給出軸向變速運動梁參數共振時的不穩定條件。Carrier frequency leakage less than - 40db can be attained since good agreement of the two diodes antiparalleled in even - harmonic mixer is guaranteed inherently
在簡化載波信號產生電路的同時，利用偶次諧波混頻器固有的本振偶次諧波高抑制度特性，來抑制載波泄漏。The generators are of dirp - proof with rotating field type and with the adoption of harmonic excitation system, that allow your easy operation and simple maintenance
發電機為防滴轉場式，採用諧波勵磁系統，使用安全可靠，維護簡單方便。Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter
西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性，提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓，在滿足輸出電壓條件下使諧波最小。Especially, they are characteristic of low price and perfect absorbability, so they can be an important absorbent in radar absorbing materials
鐵氧體既具有亞鐵磁性又有介電特性，對簡諧微波電磁場來說，其相對磁導率和相對介電系數均呈現復數形式。Based on the results of the theory analysis and computer simulation of suspended stripline low pass filter, band pass filter, the transition from waveguide to finline and the transition from waveguide to suspended stripline, the structure design and manufacture were made. the measured results match the requirement. different from the traditional mixers used in the domestic communications satellites, the sub - harmonic balance mixer type was used in the ka - band mixer design
在ka頻段混頻器的研究過程中，通過對衛星和飛船所用到的混頻器進行研究，在對ka波段的傳統射頻前端電路的分析基礎上，提出改變以往星上傳統的基波混頻方案，採取了次諧波混頻方案，降低了本振頻率，簡化了本振鏈路，使噪聲特性、可靠性獲得改善。It is shown by structural seismic response of four wavelets that littlewood - paley wavelet is not suitable for structural seismic response, because structural response is too small, meyer wavelet is a better wavelet for structural seismic response, for it ' s structural response is agreement with the finite element method, and also harmonic wavelet, structural response under earthquake is a little bigger than finite element method, structural response under odd exponent wavelet is also bigger than finite element method, this method is very simple by wavelet transform, wavelet transform method is different from old methods, one is with which not only knows the effects of earthquake wave detail frequency - band on structural response, but also considers earthquake wave ' s non - stationary of frequency and time - domain value, another is the second mode shape and higher mode shape response that do n ' t attenuate so fast
通過對這四種小波的結構地震反應分析研究說明： littlewood ? paley小波不適合於用來作結構地震反應分析，因為在littlewood ? paley小波下的結構地震反應太小，不符合實際情況；用meyer小波作結構地震反應分析比較合適，和有限元法的結果比較接近；也可以用諧波小波來作結構地震反應分析，只是在諧波小波下的結果略為偏大；單邊指數小波下的結構地震反應分析比有限元法稍大一點，它通過小波變換大大簡化了結構地震反應分析。用小波變換方法來進行結構地震反應分析和以往方法不同的是：它不僅可以知道地震波的具體頻率段對結構反應的影響，而且同時考慮了地震波的幅值非平穩性以及頻率非平穩性；另外與以前方法得到的結果有差異的是，第二振型及以後的高一點的振型的反應沒有以前的方法衰減得快。For a class of shunt - wound active power line conditioner, based on analysis of mathematical model of system and target of control, the algorithm of fuzzy variable structure sliding mode control is presented. the control algorithm can avoid complicated calculation of harmonic electric current in traditional control algorithm, and realize the feedback control of electric current. the algorithm is simple and easily implemented
針對一類並聯型有源電網調節器在分析系統數學模型和控制目標的基礎浙江大學博士學位論文上，提出了模糊滑模控制策略，避免了傳統控制方法中復雜的諧波電流計算，實現對電源電流的閉環控制，該演算法簡單、易於實現，模擬結果證實了變結構滑模控制的有效性。We solve the master equation by system - reservoir method with born - markov approximation for the composite system with one simple harmonic oscillator and the reservoir composed with many other harmonic oscillators surrounded
摘要:我們使用系統與熱庫的方法，並使用波恩-馬可夫近似來求解一模型：單一簡諧振子與一群簡諧振子的熱庫。In order to control sound radiation from a baffle in sonar equipment excited by vibration and noise from a ship, the baffle was modeled as a simply supported rectangular thin plate and its radiation characteristics were analytically investigated
摘要為抑制聲吶設備中障板受艦船振動、噪聲激勵而產生的聲輻射，將障板轉化成簡支薄板模型，分析其在諧波激勵下的聲輻射。The new system has strong data manage ability, it can manage the database easily. it also can be improved easily and get deal with human friendly. especially it improve tune wave detection and can realize remote control
新型電能質量參數檢測系統，數據處理功能強、數據管理方便、系統升級簡單、人機交互性好，特別是解決了諧波檢測中的抗混疊現象，並且能進行遠程監控，具有較大的使用價值和廣闊的應用前景。The results show that the temperature variety in prestress concrete could not been neglected. the main factors that affect the temperature distribution had been analyzed basing on experiment results and much datas of environment variety, and provided a simple curve about periodical variety environment temperature
在現場試驗研究和其它的環境溫度的大量實測資料的基礎上，對影響預應力混凝土構件內部溫度分佈的主要因素進行分析，提出了周期性變化的環境溫度可在數學上簡化為一條簡單的簡諧波曲線。分享友人