一、電能質量分析記錄儀是什么儀器

電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)質(zhi)(zhi)量(liang)，從普(pu)遍意義上講是(shi)指優質(zhi)(zhi)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)，包括電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)質(zhi)(zhi)量(liang)、電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)質(zhi)(zhi)量(liang)、供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)質(zhi)(zhi)量(liang)和(he)用電(dian)(dian)(dian)(dian)(dian)(dian)質(zhi)(zhi)量(liang)，其可以定義為(wei)：導致用電(dian)(dian)(dian)(dian)(dian)(dian)設備故(gu)障或(huo)不(bu)能(neng)正常工作的電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)、電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)或(huo)頻(pin)率(lv)(lv)的偏(pian)差，其內容包括頻(pin)率(lv)(lv)偏(pian)差、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)偏(pian)差、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)波(bo)動與閃變、三相不(bu)平衡、暫時或(huo)瞬態(tai)過電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)、波(bo)形畸變（諧波(bo)）、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)暫降(jiang)、中(zhong)斷、暫升以及供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)連續(xu)性等(deng)。在現(xian)代電(dian)(dian)(dian)(dian)(dian)(dian)力系統中(zhong)，電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)暫降(jiang)和(he)中(zhong)斷已成(cheng)為(wei)最(zui)重要的電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)質(zhi)(zhi)量(liang)問題。

電能質量分析記錄儀，是對(dui)電(dian)(dian)網運行(xing)(xing)(xing)(xing)質量(liang)(liang)進(jin)行(xing)(xing)(xing)(xing)檢測(ce)及分析的專用便攜式產品(pin)，可以提供(gong)電(dian)(dian)力運行(xing)(xing)(xing)(xing)中的諧波分析及功率品(pin)質分析，能夠對(dui)電(dian)(dian)網運行(xing)(xing)(xing)(xing)進(jin)行(xing)(xing)(xing)(xing)長時間(jian)的數據采集監測(ce)，同(tong)時配備電(dian)(dian)能質量(liang)(liang)數據分析軟件，對(dui)上(shang)傳至(zhi)計(ji)算(suan)機的測(ce)量(liang)(liang)數據進(jin)行(xing)(xing)(xing)(xing)各(ge)種分析。

電能質量分析記錄儀(yi)是一種測試儀(yi)器(qi)，隨著大小設備用電的各個方面越來(lai)越重要，它(ta)在電氣和電子行業應用也(ye)越來(lai)越廣泛。

二、電能質量分析記錄儀的結構組成

電能質量(liang)分析(xi)記錄(lu)記錄(lu)儀主要(yao)由(you)五部(bu)分組(zu)成，分別為(wei)測量(liang)變換模(mo)(mo)(mo)塊(kuai)、模(mo)(mo)(mo)數轉換模(mo)(mo)(mo)塊(kuai)、數據(ju)處理模(mo)(mo)(mo)塊(kuai)、數據(ju)管理模(mo)(mo)(mo)塊(kuai)以及(ji)外圍(wei)模(mo)(mo)(mo)塊(kuai)。

其中測量變換模(mo)塊(kuai)由電壓互感(gan)器、電流互感(gan)器以及信(xin)號調(diao)理電路組成；數據處理模(mo)塊(kuai)包(bao)含DSP以及外部存儲(chu)器SDRAM與FLASH；外圍模(mo)塊(kuai)由顯示(shi)、存儲(chu)以及通信(xin)子模(mo)塊(kuai)組成。

三、電能質量分析記錄儀的原理是什么

電能質量分析記錄儀是一種專用于分析記錄電(dian)(dian)網(wang)運(yun)行(xing)質量的儀(yi)表，它主要利(li)用的是電(dian)(dian)信號被轉換(huan)成數字信號的原理(li)，對(dui)電(dian)(dian)網(wang)運(yun)行(xing)質量進行(xing)檢測和(he)分析，具體的工(gong)作原理(li)是：

1、電(dian)網(wang)信號(hao)(hao)經(jing)過電(dian)壓/電(dian)流互感器、信號(hao)(hao)調理電(dian)路轉變為符(fu)合ADC輸入要求的小幅值電(dian)壓信號(hao)(hao)。

2、模數(shu)轉換模塊用(yong)于(yu)將小幅值電壓信(xin)號轉變(bian)為(wei)數(shu)字(zi)信(xin)號，并將其傳送至數(shu)據(ju)處理(li)模塊。

3、數據處理模(mo)塊以DSP作(zuo)為運算核心，對ADC的采樣信號進(jin)行數據處理，從(cong)而計算得(de)到電(dian)壓偏(pian)差(cha)、頻率偏(pian)差(cha)、諧波(bo)、三相不(bu)平衡度、電(dian)壓閃變等電(dian)能質量(liang)參數。

4、數據管(guan)理模塊(kuai)用于對(dui)數據處理模塊(kuai)計算(suan)得到的各項電能質量參數進行數據管(guan)理，完成(cheng)顯(xian)示、存儲(chu)以及(ji)通信等人機交互功(gong)能。