一、電能質量分析記錄儀是什么儀器

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)質(zhi)(zhi)量(liang)(liang)，從(cong)普遍意義上講是指優質(zhi)(zhi)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，包括電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)質(zhi)(zhi)量(liang)(liang)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流質(zhi)(zhi)量(liang)(liang)、供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)質(zhi)(zhi)量(liang)(liang)和用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)質(zhi)(zhi)量(liang)(liang)，其可以定義為：導(dao)致(zhi)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)設備故(gu)障或不能(neng)(neng)正常工作的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流或頻(pin)率(lv)的偏(pian)差，其內容包括頻(pin)率(lv)偏(pian)差、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)偏(pian)差、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)波(bo)動與閃(shan)變(bian)(bian)、三相不平衡、暫(zan)時或瞬態過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)、波(bo)形畸變(bian)(bian)（諧(xie)波(bo)）、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)暫(zan)降、中斷、暫(zan)升以及供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)連續性等。在現代電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)系統中，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)暫(zan)降和中斷已成(cheng)為最重要的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)質(zhi)(zhi)量(liang)(liang)問題。

電能質量分析記錄儀，是(shi)對電網運(yun)行(xing)(xing)質(zhi)量進行(xing)(xing)檢(jian)測(ce)及(ji)分(fen)(fen)析(xi)(xi)的專用便攜式產品(pin)，可以提供電力運(yun)行(xing)(xing)中的諧(xie)波(bo)分(fen)(fen)析(xi)(xi)及(ji)功率品(pin)質(zhi)分(fen)(fen)析(xi)(xi)，能夠對電網運(yun)行(xing)(xing)進行(xing)(xing)長時間的數(shu)(shu)據(ju)采集(ji)監(jian)測(ce)，同時配備電能質(zhi)量數(shu)(shu)據(ju)分(fen)(fen)析(xi)(xi)軟件，對上傳至計算機(ji)的測(ce)量數(shu)(shu)據(ju)進行(xing)(xing)各種分(fen)(fen)析(xi)(xi)。

電能質量分(fen)析記錄(lu)儀是一種(zhong)測試儀器，隨(sui)著(zhu)大(da)小設備用(yong)電的各(ge)個方面越(yue)來越(yue)重要，它在(zai)電氣和電子行業應用(yong)也越(yue)來越(yue)廣(guang)泛。

二、電能質量分析記錄儀的結構組成

電能質量(liang)分析記(ji)錄記(ji)錄儀(yi)主要由五部分組成，分別為測量(liang)變換模(mo)塊(kuai)、模(mo)數(shu)轉換模(mo)塊(kuai)、數(shu)據(ju)處理模(mo)塊(kuai)、數(shu)據(ju)管理模(mo)塊(kuai)以(yi)及外圍模(mo)塊(kuai)。

其中(zhong)測量變換模(mo)塊(kuai)由(you)電壓互感器、電流互感器以及(ji)信(xin)號調(diao)理電路組(zu)成；數據處理模(mo)塊(kuai)包含DSP以及(ji)外(wai)部(bu)存儲器SDRAM與FLASH；外(wai)圍(wei)模(mo)塊(kuai)由(you)顯(xian)示、存儲以及(ji)通信(xin)子(zi)模(mo)塊(kuai)組(zu)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(shi)一(yi)種專(zhuan)用于分析記錄電網(wang)運(yun)行(xing)(xing)質(zhi)量的(de)儀表(biao)，它主要利用的(de)是(shi)電信號被轉(zhuan)換成(cheng)數字信號的(de)原理，對(dui)電網(wang)運(yun)行(xing)(xing)質(zhi)量進行(xing)(xing)檢測和分析，具(ju)體的(de)工作原理是(shi)：

1、電(dian)(dian)網(wang)信(xin)號(hao)經(jing)過電(dian)(dian)壓/電(dian)(dian)流(liu)互(hu)感器、信(xin)號(hao)調理電(dian)(dian)路轉變(bian)為符合ADC輸入要求的(de)小幅值(zhi)電(dian)(dian)壓信(xin)號(hao)。

2、模數(shu)轉(zhuan)換模塊用于將(jiang)小(xiao)幅值(zhi)電(dian)壓信(xin)號(hao)轉(zhuan)變為(wei)數(shu)字信(xin)號(hao)，并將(jiang)其傳送至數(shu)據處理(li)模塊。

3、數據處(chu)理模塊以DSP作為運算(suan)核心(xin)，對ADC的采樣(yang)信號進行(xing)數據處(chu)理，從而計算(suan)得到(dao)電壓偏(pian)(pian)差、頻率(lv)偏(pian)(pian)差、諧波、三相(xiang)不平(ping)衡度、電壓閃變等電能質量(liang)參數。

4、數(shu)(shu)據管理模(mo)塊(kuai)用于對數(shu)(shu)據處(chu)理模(mo)塊(kuai)計算得到的各項電能質量參數(shu)(shu)進(jin)行數(shu)(shu)據管理，完成顯(xian)示、存儲(chu)以及通信等人機交(jiao)互(hu)功能。