相不平衡 的英文怎麼說
中文拼音 [xiāngbùpínghéng]
相不平衡
英文
phase unbalance-
The electricity generation companies " cost and generation capacity also influences the effects of exercising market power ; and 4 ) for the guangdong electricity market, the imbalance in the electricity ' s supply - demand relationship, the highly concentrated market and the game and collusive incline of electricity generation companies may create potentially significant market power
（ 4 ）由於電力供需不平衡、市場高度集中，以及發電企業博弈和共謀的傾向，廣東電力市場具有相當大的潛在的市場力，因此，應及時制定抑制市場力的措施。As a particular category of economic monopoly, the earlier studying of natural monopoly, which is related to the finitude and the concentration especially the imbalance of location of the natural resources
作為經濟性壟斷中的特殊類型，最初的自然壟斷與資源有限性及集中程度有關，特別是與自然資源分佈不平衡相關。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。Phase angle of unbalance
不平衡相位Finally, based on above, the essay purposes matching strategies for the harmonious development of urban and rural economy. the first is to shift agriculture labor. according to j. fei and g. ranis three - stage theory on employment shift process, china ' s economy is the one of labor surplus and, at the same time, which is not balanced with the different tendency of regional labor
最後，在上述基礎上，對城鄉經濟協調發展提出了相應的對策： （ 1 ）轉移農業勞動力據費景漢和拉尼斯就業轉換過程的三階段理論，我國屬于勞動剩餘經濟，同時，發展不平衡、區域勞力供求態勢不同。The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail
首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。The protection system can deal with the following motor faults : heavy over - current, over / under - voltage, over - current, current unbalance protection, repeated startings, earth fault and so on
在此基礎上實現了針對過載、堵轉、短路、斷相、逆相、相不平衡等故障的保護。First of all, the mathematical development and extensive computer simulation are used to analyze the influence of amplitude and phase unbalances of in - phase and quadrature channels on weather radar echo spectrum estimation
首先對回波正交雙通道幅相不平衡對氣象回波譜估計的影響進行了詳細的理論推導和計算機模擬。This thesis discusses the pulse doppler ( pd ) weather radar signal processing system including digital intermediate frequency ( if ) receiver, especially on the application of if sampling and digital demodulation technique in pd weather radar signal processing system, the influence of amplitude and phase unbalances of in - phase and quadrature channels on weather radar echo spectrum estimation, ground clutters elimination algorithms and a typical engineering realization scheme of pd weather radar signal processing system
本論文研究的是採用數字中頻接收技術的脈沖多普勒氣象雷達信號處理系統，重點研究了中頻采樣及數字解調技術在脈沖多普勒氣象雷達信號處理系統中的應用、正交雙通道幅相不平衡對氣象回波譜估計的影響、地雜波濾波演算法，以及脈沖多普勒氣象雷達信號處理系統的具體工程實現。After moving some key obstacles, the author has realized a prototype lvc dvr. the effectiveness of dvr is illustrated by the compensation experiment
論文利用研製的樣機進行了靜態電壓低下、動態電壓暫降、系統三相不平衡等常見電能質量問題的補償實驗。Realization of the wide - band shaping filter in baseband is carefully analyzed, and then a low - cost realization method is brought forward. furthermore, through shaping filters, i / q route self - synchronization and compensation and revise of the nonlinearity and the imbalance of amplitude and phase of the modulation circuits are advanced
分析了基帶寬帶數字成形濾波器的實現難點，提出了低代價的實現方法，並利用成形濾波器解決了調制端i / q自動同步，調制電路的各種非線性和幅相不平衡的補償校正等問題。The test results demonstrate that this prototype has excellent comprehensive performances such as small bulk, lower weight, high efficiency, high steady precision, fast dynamic response, wide range input voltage, good output waveforms, strong over - load and short - circuit ability, and strong function with different nature load and three - phase unbalanced load
試驗結果表明，該變流器具有體積重量小、變換效率高、靜態精度高、動態響應快、輸入電壓變化范圍寬、輸出波形質量高、過載與短路能力強、帶不同性質負載和帶三相不平衡負載的能力強等優良的綜合性能。At present, our country power quality national standard was chiefly stipulated five quotas : frequency, harmonic and voltage deviation, three - phase unbalance and the voltage fluctuation and flicker
目前我國電能質量國家標準主要規定了五個指標：頻率、諧波、電壓偏差、三相不平衡及電壓波動與閃變。After the analysis of power produce character of the typical three - phases unbalance load, the corresponding circuit is adopted. this main circuit is composed of the power filter series and tcr control circuit. secondly the theory of band - pass filter is analyzed in detail, and then a method of implementing butterworth band - pass filter is put forward
簡要分析了無功補償的基本原理和工作特點，通過對典型的三相不平衡負載工作特點的分析，主電路採用電力濾波器與晶閘管控制電抗器相接合的結構；對用於無功檢測的帶通濾波器進行了分析，設計了用於負載電壓、電流信號濾波的帶通濾波器，並採用運算放大器加以實現。This paper put forward the realization method of a kind of multi - function general use inverter system which added other functions based on the independent sine wave inverter, it not only can be used as independent inverter power supply but can be used as an in - support mode ups which realize synchronous with the phase of power grid voltage and realize to switch with power grid mutually, it also can realize three phase ac output by the combination of three synchronous inverters, experiment proved it in this way has a stronger ability of resisting three phase unbalance load
本文提出了一種基於獨立正弦波逆變器的功能之上復合其他功能而成的多功能通用逆變電源系統的實現方法，此系統不僅可以作為獨立逆變電源使用，還可以與電網電壓的相位同步，作為后備式正弦波ups使用，在逆變電源和電網的相互切換時能做到對負載無影響，同時還可以由三臺逆變器進行組合自同步實現三相對稱交流輸出，實驗證明這種方式具有較強的抗三相不平衡負載的能力。However, compared with voltage deviation, unbalance of three phases, harmonics and frequency deviation, fluctuation and flicker are more complex to be detected, its research is relative to scarce, and the measuring devices are much less. hence, some further research on measuring voltage fluctuation and flicker has been done in the paper
但與電壓偏差、三相不平衡、諧波、頻率偏移等電能質量問題相比，電壓波動與閃變的檢測較為復雜，研究相對不足，測量設備較少，因此，本文選擇這一問題進行進一步研究。The control principle, design idea and engineering fulfilment of tct static var compensator in unbalanced three - phase system are introduced
摘要介紹了三相不平衡系統靜止型動態無功補償裝置的控制原理、設計思想及工程實現。Moreover, owing to rapid use of large numbers of nonlinear or impactive loads in power system, many power quality problems will be caused, such as voltage sag, swell, unsymmetry, flicker, fluctuation, harmonic and so on
然而，隨著電網中沖擊性、非線性負荷的不斷增加，導致電網電壓波形發生畸變、波動、閃變和三相不平衡等電能質量問題卻越來越嚴重。This paper introduces the ac sampling arithmetic and emphasizes the study of measurement arithmetic under the unbalanced and distorted condition
本文研究和給出電氣量測量交流采樣的演算法，著重研究三相不平衡及波形畸變工況下無功功率的測量演算法。The simulation results prove that active power filter can not only eliminate harmonic current effectively, but also have well dynamic compensation characteristics. designing of digital low pass filter and the effect of its cut off frequency on precision of instruction current are discussed in this paper
模擬結果證明，有源電力濾波器對於三相平衡負載或三相不平衡負載的諧波電流都起到了很好的補償作用；同時當負載電流突變時，有源電力濾波器具有良好的動態補償特性。分享友人