諧波諧波的 的英文怎麼說
中文拼音 [xiébōxiébōde]
諧波諧波的
英文
harmonic-
Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total. the paper are laid on the following. ( 1 ) master plan and function of circuit, ( 2 ) hardware design including circuit and principle of a / d conversion, phase lock, liquid crystal display and keystroke and so on, ( 3 ) design of system software including digital filtering, fft, a / d conversion and monitor interface of pc, ( 4 ) system test
監測儀能夠完成包括三相電壓、三相電流的有效值、功率因數、三相不平衡、電壓短期閃變、以及20次內的諧波、諧波相位、諧波失真總量等的測量。論文重點介紹了以下幾部分: ( 1 )電路的總體設計和功能; ( 2 )硬體設計,包括a d轉換、鎖相環、液晶顯示和按鍵輸入等原理和電路。 ( 3 )系統軟體設計,包括a d轉換、 fft 、數字濾波等程序的原理和演算法以及上位機監控界面的設計; ( 4 )系統測試。Research on harmonic compensation using synchronous machines
同步電機實現諧波補償的研究The smart rotor with active trailing edge is a new system for reducing the vibration which can adjust the air load of the blade to actively counteract the main harmonic of the force to the fuselage by controlling the deflection of the trailing edge
主動后緣附翼控制是一種較新的旋翼減振系統,它通過控制后緣附翼的偏轉,調節槳葉的氣動載荷,實現對機體激振力主要諧波分量的主動抵消。At first, the character of millimeter wave and frequency multipliers in millimeter wave band is introduced. based on the principle of harmonic frequency extraction in nonlinear device, we present the avalanche diode high order frequency multipliers in w band
利用雪崩效應中強烈的非線性電感特性,基於非線性器件諧波提取的思想,對倍頻器電路進行了優化模擬,採用雪崩倍頻二極體研製了w波段雪崩高次倍頻器。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 can make the analysis report on the basis of the abstract nation standard. based practical analog analysis in some partial power net, obtain the harmonic oscillation characteristic curve, and verify the software is right
通過對某局域電網的實例模擬分析,結果表明,獲得了諧波諧振特性曲線,還根據實際測試數據,恢復了電網實際電壓電流波形,驗證了軟體的正確性。Least square method based measurement of sine wave total harmonic distortion
基於最小二乘法的正弦波諧波失真度測試The air - gap harmonic magnetic field and its effect on the iron losses are analyzed ; then the design rules to reduce the harmonics and the iron losses are presented ; at last, the sine or approximate sine air - gap magnetic field is constructed with non - homogenous air - gap, and the non - homogeneous air - gap function is presented
第三部分對永磁同步電動機的氣隙磁場進行了理論分析和電磁場數值計算,分析了永磁同步電動機氣隙諧波磁場的特點和不同轉子結構尺寸對氣隙諧波的影響,提出了削弱氣隙諧波磁場減小損耗的措施。In accordance with the condition that the higher harmonic overproofs in the 110kv substation in chucun cangzhou and the request that voltage - reactive power overall control will be realized in the whole substation, this paper focuses on how to bring substation harmonic and voltage - reactive power under control, and puts forward solutions and technical measures
針對滄州楮村110kv變電站存在的高次諧波超標的情況,以及實現全站電壓無功綜合控制的要求,本論文重點研究了變電站諧波治理和電壓無功控制的問題,提出了解決方案和技術措施。Nonlinear dynamical character of ship rolling investigated by harmonic wavelet transform
用諧波小波變換法研究船舶橫搖的非線性動力特性In addition, the c1ose - - 1oop cofltro1 part is devised, u1timate1y getting the pure sine wave with high rate of voltage use and 1ow distortion of harmonic wave
此外,還設計了閉環控制環節,最終得到具有高的電壓利用率和低諧波失真的純凈的正弦波。Point originally possessed the harmful interference of the frequency s every kind of times. enlarge 1 khz sine wave the hour will produce 2 khz of two times wave with 3 khz of three times wave wave for and much higher time
指原有頻率的各種倍頻的有害干擾。放大1khz正弦波時將會產生2khz的二次諧波和3khz的三次諧波以及許多更高次的諧波。Based on the adaptive interference canceling theory and the concept of space vector, an adaptive fundamental positive / negative sequence component and harmonic component detecting method is developed. due to the close loop structure, this method has quite good robustness, and can meet the requirement of the asymmetrical control of hvdc - vsc well
運用自適應干擾對消原理和空間矢量的概念,提出了一種基波正序分量、基波負序分量及諧波分量的自適應檢測方法,並進行了詳細的理論分析,為研究hvdc - vsc的不對稱運行控制奠定了基礎。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。In practical studies, finally, a hybrid active power filter based on the digital signal processor ( dsp ) and intelligent power module ( ipm ) was set up, including a cycloconverter acem. based on the experimental set - up, plenty of experimental studies were conducted. the experimental results demonstrate that the self - adaptive technique, the topology of series connected hybrid power filter and the corresponding significant technologies described above are feasible and practical
最後,實際研製了一套以dsp (高速數字信號處理器)和ipm (智能功率模塊)為核心的小功率混合型有源濾波裝置,在交交變頻acem實驗平臺上進行了全面的實驗研究,充分驗證了本文所提出的自適應同步相關濾波技術、優化混合型濾波器拓撲結構和有關的關鍵性技術的正確性和實用性,從而從理論到實踐全方位、成功地實現了對交流勵磁發電機輸出電力諧波抑制的研究。The numerical work gives out lot of results of different aberrations. the effects of the fundamental wave ' s aberrations, which will change the conversion efficiency, distribution of intensity and phase in the frequency conversion, is analyzed
研究結果表明位相失配和走離效應是影響諧波位相的重要因素;像差在非線性光學過程中傳遞結果不是線性疊加的,而是非線性的。So the result is more accurate than old methods. the result of structural energy response based on wavelet provides a practicable method for structure design and design energy dissipation system in structure, this chapter ' s analysis and contrast tell us littlewood - paley wavelet is not suitable for analyzing energy of earthquake ground motion and structural energy response. on the purpose of calculating energy, meyer wavelet must be modified so that its frequency integral is a constant, the result of energy by modified meyer wavelet and harmonic wavelet is practicable, only the later is bigger but in the same energy level
通過三種小波基( littlewood ? paley小波、 meyer小波、諧波小波)下的地震地面運動能量分析以及結構地震能量反應分析說明:直接通過加速度記錄可以求得地震動能量,由於小波系數中同時含有時域和頻域的能量,由此得出的能量比以往的方法更準確;在此基礎上求得了結構的能量反應時程,為結構設計及結構中設計耗能體系提供了具體的方法;通過這一章對比分析得出, littlewood ? paley小波不適合於作地震動能量分析和結構能量反應分析。Areas covered in the review include bonding requirements, lightning protection requirements and harmonic current limits requirements. we are updating the reference list for international standards and adding an index page for quick reference
今次修訂的內容包括等電位接駁的要求、避雷系統的測試方法及諧波電流的限制,並更新國際標準的參考資料及新加索引等。Proposed new method to enhance high - order harmonic generation conversion efficiency through atomic coherent states
提出用原子相干態來提高高次諧波效率的新方法。Have studied generator ground model mostly used in detail for middle and big domestic generator units. calculates and deduces fault current as grounding of single phase and third harmonic fault protection schemes. first time contributes overall knowledge about generator neutral grounding of distribution transformer with secondary resistor, in which considered inductance of the transformer to people
針對大中型發電機的兩種主要接地方式進行了分析,進行了接地故障電流、三次諧波保護的計算推導,首次在接地變高阻接地方式有關公式推導中計入接地變感抗,從而使人們對接地變高阻接地認識更為全面。分享友人