數(shù)據(jù)采集外文翻譯-文庫吧資料
2024-09-05 02:01本頁面
【正文】 t value determined timer,Use timing interrupt way realization synchronous sampling. The advantage of this method is no hardware synchronous circuit, simple structure .This topic will be the eventual realization of access to embedded systems，the realization of the power measurement and monitoring,monitoring system to meet the electricity network,intelligence requirement,it promote the development of remote monitoring services,bringing a certain degree of effectiveness.On the fundamental reactive current and harmonic current detection, there are mainly 2 ways: First, the instantaneous reactive power theory based method, the second is based on adaptive cancellation addition, there are other nonmainstream approach, such as fast Fourier transform method, wavelet transform.Instantaneous power theory based on the method of offensive principles are: a threephase current detection and load phase voltage A, the coordinate transformation, twophase stationary coordinate system the current value, calculate the instantaneous active and instantaneous reactive power ip iq,then after coordinate transformation, threephase fundamental active current, with the final load current minus the fundamental current, active power and harmonic currents are fundamental iah, ibhi, ich.From:Principles of Data Acquisitio 數(shù)據(jù)采集目前，我國高校公寓管理正在向著正規(guī)化、市場化發(fā)展，在不斷提高學生方便用電的同時，用電事故頻有發(fā)生，雖然部分高校公寓已經(jīng)安裝了電能計量監(jiān)控系統(tǒng)，但這些系統(tǒng)普遍存在著監(jiān)控程度低、計費精度不高、電費均分、網(wǎng)絡程度低等諸多端。s 16 fixedpoint digital signal processor TMS320VC5402. It has high costperformance and provide highspeed, bidirectional, multichannel belt cushion, be used to serial port with system of other serial devices directly interface.The realization method of ac sample：In the field of power quality analysis,The fast Fourier transform (FFT) algorithm analysis of electric system harmonic is monly the FFT algorithm to signal a s
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