數(shù)據(jù)集中器將AFE，MCU和無(wú)線電智能電網(wǎng)效率的關(guān)鍵

　　數(shù)據(jù)集中器提供通信關(guān)鍵自動(dòng)計(jì)量和信息在智能電網(wǎng)架構(gòu)系統(tǒng)。數(shù)據(jù)集中器通常位于電網(wǎng)中的變壓器或變電站級(jí)，數(shù)據(jù)集的完整性和安全性保證了智能電表的能量測(cè)量信息和電力應(yīng)用的分析信息。通常，這些系統(tǒng)使用先進(jìn)的基于MCU的設(shè)計(jì)，依賴于電力線通信（PLC）在最后一英里的用戶儀表和能源管理系統(tǒng)。為了滿足廣泛的這些設(shè)備的要求，工程師可以設(shè)計(jì)復(fù)雜的基于PLC的數(shù)據(jù)集中器采用AFE集成電路和MCU廠商，包括飛思卡爾半導(dǎo)體、集成、意法半導(dǎo)體、德克薩斯文書(shū)，其中。

　　數(shù)據(jù)集中器充當(dāng)公用事業(yè)控制的智能電網(wǎng)分銷網(wǎng)絡(luò)和終端用戶之間的接口，管理特定地理區(qū)域內(nèi)公用事業(yè)和多個(gè)智能電表之間的數(shù)據(jù)交換（圖1）。在自動(dòng)計(jì)量基礎(chǔ)設(shè)施（AMI）和自動(dòng)抄表（AMR）系統(tǒng)、數(shù)據(jù)集中器–也稱為數(shù)據(jù)聚合–提供所需的測(cè)量、分析的核心功能，并收集能源使用。然后他們將這些數(shù)據(jù)傳送到中央數(shù)據(jù)庫(kù)進(jìn)行計(jì)費(fèi)、故障排除和分析。

　　Figure 1： An Automated Metering and Information System comprises multiple levels of data management and communications， starting with hardware data concentrators that provide data acquisition， processing， and security between the utility and end-user energy systems including smart meters. （Courtesy of Siemens.）

　　Data concentrators enable utilities to use information from smart meters to gain a better understanding of grid status， including immediate knowledge of outages. With this detailed information about the power distribution grid， power companies can evaluate overloads and unbalances in the grid， as well as more effectively detect faults. This information also allows utilities to evaluate more static losses in the grid by comparing measured power at higher levels of the grid with that measured by smart meters at the periphery of the grid. Ultimately， the combination of detailed smart meter power measurements and upstream monitoring and analysis will provide utility customers with better knowledge of their consumption and power saving opportunities， and inform them about network situation disturbances.