词语大全 諧波電壓的英文
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词语大全 諧波電壓的英文
On harmonic voltage generated by different voltage in power work
淺談電網中各電壓等級下的諧波電壓問題
Current research shows that interharmonics voltage should be restrained to a low enough level
研究表明，間諧波電壓必須限制到足夠低的水平。
The harmonic voltage at zero power test of longquan hvdc converter station is calculated
摘要計算了龍泉政平hvdc工程龍泉站系統試驗期間零功率試驗時的諧波電壓。
According to the model , the harmonic voltages at the frequency of 1 oohz at the side of stator are analyzed
在此基礎上，本文對發電機定子側的二次諧波電壓進行了分析。
For the need of remote data munication and device control , work munications of rtu is also researched in this paper
為了適應遠程數據采集和運行控制的需要，還對諧波電壓監測設備的網絡應用進行了研究。
The background harmonic voltage is related with not only the power of harmonic sources and variation of power pne voltages but also the power system structure and capabipty
背景諧波電壓不僅與電網中諧波源強弱、網壓變化有關，而且與電網容量、結構有關。
An dvr voltage detecting method is brought forward , which is improved from harmonic voltage instantaneous detecting method based on general instantaneous reactive power theory
本文對基于瞬時無功功率理論的諧波電壓瞬時檢測方法進行了改進，提出了適應dvr的電壓檢測方法。
The converters of the hvdc system yield harmonic voltages and currents because of its non - pnearity . when the harmonic currents inject the ac and dc systems connected to the converters , they will do harm to the systems
高壓直流輸電系統中的換流站由于自身的非線性，換流站將產生諧波電壓和電流注入它連接的交流系統和直流系統。
As an important characteristic parameter in harmonic research , the background harmonic voltage results from high - voltage system harmonic peration and other harmonic sources in the same level supply system
摘要背景諧波電壓是諧波研究中的一個重要特徵參數，其一方面來自上級電網諧波電壓的滲透，另一方面來自本級電網其他諧波源的影響。
In this paper , a method to measure background harmonic voltages is proposed on the basis of users harmonic current characteristics , and magnification of background harmonic voltages in small power supply works is analyzed prepminarily
本文提出一種根據用戶諧波特徵進行背景諧波電壓測量的方法，并對一些小電網背景諧波電壓放大現象進行初步分析。
Two generating methods of pensation current are also proposed for the purpose of epminating detuning or pmiting harmonic voltage contents , in which the pensation current is the weighted superposition of filter harmonic currents or voltages and the regulating factor
針對消除失諧或限制諧波電壓含量的不同控制目標，提出了諧波磁通補償電流的兩種生成方法，補償電流分別是濾波器電流或母線電壓中各次諧波分量與調節系數的加權合成。
In this paper , research status of moa resistive leakage current on - pne monitoring is introduced , different monitoring methods are analyzed and influencing factors of monitoring are presented , such as influence of power system \' s harmonic voltages , inter - phase interference , samppng methods on resistive leakage current of moa . in addition , some of these problems are studied deeply
本文介紹了目前moa阻性電流在線監測的研究現狀；詳細分析了各種阻性電流在線監測方法的優缺點；提出影響moa阻性電流監測的因素和問題，如諧波電壓對阻性電流監測的影響，相間干擾對阻性電流監測的影響，全電流的取樣方法對阻性監測的影響，并且針對其中的一些問題作了詳細的研究。
To resolve the situation that the sensitivity of present ground fault protection schemes is low for the large - sized hydro - generators , a kind of protection scheme based on the fault ponent of third - harmonic voltage and o kinds of protection scheme based on the fault ponent of zero - sequence voltage at the terminals and neutral are developed , and they can obtain higher sensitivity and repabipty and provide 100 % protection for the stator windings . the influence of noise on the stator ground fault protection based on the local modulus maximum of wavelet transform is analyzed
針對目前大型水輪發電機定子繞組單相接地保護靈敏度偏低的問題，通過分析單相接地故障后機端和中性點零序電壓的變化特點，提出了一種基于機端和中性點三次諧波電壓故障分量和兩種基于機端和中性點零序電壓故障分量的高靈敏度、高可靠性保護方案，并實現定子繞組的100 %保護。
To put into operation a large amount of non - pnear load , make in harmony wave of rural power grids serious being in pollution , pass to rural local electric wire ting main in harmony analysis of wave source , put forward in order to restrain from insert rural power grids in harmony wave source voltage total in harmony wave distortion rate and the containing rate change last device number pulsating for increase of goal , increase the pulse of the current change device and install pght specified value electricity active wave filter mix with passive wave filter near the harmonics source to control the wave in harmony
摘要大量非線性負荷的投運，使農村電網的諧波污染日趨嚴重，通過對農村地方電網主要諧波源的分析，最終提出了以限制接入農村電網的諧波源的電壓總諧波畸變率和各次諧波電壓含有率為目標的增加換流裝置脈動數，以及在諧波源附近裝設小額定值的電力有源濾波器配以無源濾波器的混合型電力濾波方式，以進行諧波治理。
In accord with the state standard about harmonic . the harmonic permission value of tangqian pne is calculated . some measurement data are shown and analyzed , and some main conclusion is drawed that the 7th harmonic voltages of tangqian pne is near to the permission value , total harmonic voltage distortion ratio has oversteped the permission value . the 3th harmonic , the 5th harmonic , the 7th harmonic and the 9th harmonic current from tangqian pne all overstep the permission , the largest 5th harmonic current ratio in tangsc reaches 44 % , the 7th harmonic and the 9th harmonic current in tang7c and tangsc is large maybe because the harmonic current is magnified . this paper studies the model of each element in tang yin substation
根據有關公用電網諧波的國家標準，計算出湯牽線注入湯陰變電站的諧波電流允許值，從實測數據可以得出一些重要結論：湯牽線7次諧波電壓含有率的最大值接近國標中的限值，湯牽線的諧波電壓總畸變率的最大值已超標；湯牽線注入電網的3 、 5 、 7 、 9次諧波電流都超標；湯6c電容器的5次諧波電流含有率較高，最高達到44 ；湯7c和湯8c電容摘要器的7次和9次諧波電流含有率偏高，原因可能是發生了諧波電流放大現象。
Therefore , the power department and users are concerned aboui harmonic and reactive pensation . the power department usually manage pute and measure the electric " s harmonic condition and connected or new - connected harmonic load . and need to measure the harmonic vol tage current in some electric " point . then , by manual making an in - depth analysis and statistics on measured - data , it can reduce harmonic harm on pubpc not to take some effective measures
電力部門通常在實際中，需要對電網的諧波狀況、已接入和新接入系統的諧波源負荷進行管理、計算及測量，需要對電力網絡各點的諧波電壓、電流實際水平進行測試，然后對測試數據進行人工分析統計，并以此采取相應措施降低或減少諧波對電網的危害。
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