What the subject researching is that power energy should be measured with base wave ammeter to power systematic nonlinear user;And that it is high veracious by base wave AC parameters measurement method to those not bad contaminative.
本課題所研究的問(wèn)題是針對(duì)電力系統(tǒng)非線性負(fù)載用戶(hù)采用基波電度表來(lái)計(jì)量電能；而對(duì)諧波污染不嚴(yán)重的線性用戶(hù)采用基波交流參數(shù)測(cè)量的方法仍然具有較高的準(zhǔn)確性。
A kind of fundamental wave equivalent circuit of dielectric-barrier discharge ozone generator powered by sinusoidal voltage is proposed.
提出了一種新的正弦電壓供電DBD型臭氧發(fā)生器基波等效電路,該電路由非線性基波等效電阻Re和基波等效電容Ce簡(jiǎn)單并聯(lián)組成。
In the end of 20th century,two main flowings were formed,including the algorithms based on motor s fundamental wave model with Park transformation and the high-frequency injection algorithms with high-frequency injection based on the motor s harmonic model.
無(wú)(位置、速度)傳感器控制是當(dāng)前國(guó)內(nèi)外交流電機(jī)傳動(dòng)的熱點(diǎn),在20世紀(jì)末已經(jīng)形成了以交流電機(jī)的Park方程為基礎(chǔ)的基于電機(jī)基波模型的無(wú)傳感器控制和以高頻信號(hào)注入法為基礎(chǔ)的基于電機(jī)諧波模型的無(wú)傳感器控制兩大體系。
This paper introduces a method of calibrating and processing angular speed fluctuation in NI sampling system—PXI-6281,it accomplishes the acquisition of angular speed fluctuation by distortion of signal,analyzing fundamental wave,high-order harmonic of angular speed feedback signal,and calculating the amplitude ratio of base-wave and high-order harmonic.
利用N I的PX I-6281高速數(shù)據(jù)采集卡來(lái)完成角速度波動(dòng)信號(hào)的采集,借鑒信號(hào)失真度的概念,分析角速度反饋信號(hào)的基波和高次諧波大小,求取高次諧波與基波幅值比,作為角速度波動(dòng)率。
A power quadrilateral consists of apparent power S,active power P,reactive power Q,and distortion power N,or is composed of a fundamental harmonic power triangle and a harmonic power triangle.
功率四邊形也可看成是由基波功率三角形和諧波功率三角形組成的。
In this paper, we make use of Fourier series to analyze the fundamental harmonic of the SPWM and make a conclusion that the larger carrier frequency ratio(N) is, the better resolution of modulation is.
本文首先對(duì)正弦脈寬調(diào)制(SPWM)的基本原理進(jìn)行了說(shuō)明,并利用付利葉級(jí)數(shù)對(duì)SPWM 基波進(jìn)行了分析,得到載波比N 越大調(diào)制效果越好的結(jié)論,但N 受功率開(kāi)關(guān)器件本身允許頻率限制,N 不能過(guò)大。
Acquisition of fundamental waveforms based on neural network;
一種基于神經(jīng)網(wǎng)絡(luò)的基波分量提取方法
A new fundamental waveform electronic watt-hour meter was developed with its designed method proposed.
介紹了一種新型基波電子式電能表的設(shè)計(jì)方法,分析了電子式電能表的發(fā)展趨勢(shì),討論了在諧波存在下電能計(jì)量的不準(zhǔn)確性,闡述了新型基波電子式電能表的設(shè)計(jì)方案,電能計(jì)量部分確定采用DSP芯片通過(guò)軟件編程實(shí)現(xiàn)。
A new fundamental waveform electronic watt-hour meter is developed.
介紹了新型基波全電子式電能表的設(shè)計(jì)方法,分析了電子式電能表發(fā)展情況和發(fā)展趨勢(shì),討論了在諧波存在下電能計(jì)量不準(zhǔn)確的原因,闡述了新型基波全電子式電能表的設(shè)計(jì)方案,電能計(jì)量部分確定采用DSP芯片通過(guò)軟件編程實(shí)現(xiàn)低通濾波和電能計(jì)量,軟件采用適于本表計(jì)的前后臺(tái)軟件結(jié)構(gòu)。