目前,歐美各國都在開(kai)展利用(yong)先進(jin)技術抑制電(dian)力消(xiao)費高峰的(de)實(shi)驗,智能電(dian)表在發揮結算、管理等作用(yong)的(de)同時(shi),也(ye)為智能用(yong)電(dian)提供了豐富(fu)、實(shi)時(shi)的(de)增(zeng)值服務。
智能電表初的(de)安裝(zhuang)目的(de)是提(ti)升遠程抄表(biao)(biao)(biao)、遠程開關等業務的(de)效率。有了智能電(dian)表(biao)(biao)(biao),每戶的(de)電(dian)力(li)需(xu)求(qiu)(qiu)可(ke)以詳細把握,并可(ke)以根據(ju)需(xu)要(yao)只啟動必要(yao)數(shu)量的(de)發電(dian)與(yu)(yu)配電(dian)設備。雖然(ran)智能電(dian)表(biao)(biao)(biao)需(xu)要(yao)成本和安裝(zhuang)費(fei)用(yong),但是可(ke)以控制(zhi)對發電(dian)與(yu)(yu)配電(dian)設備的(de)投資。此外,近年(nian)來(lai)(lai)智能電(dian)表(biao)(biao)(biao)控制(zhi)高(gao)峰需(xu)求(qiu)(qiu)期電(dian)力(li)消費(fei)量的(de)效果也越(yue)來(lai)(lai)越(yue)明(ming)顯。電(dian)力(li)公司利用(yong)智能電(dian)表(biao)(biao)(biao)向用(yong)戶發送電(dian)力(li)相關信息(消費(fei)量與(yu)(yu)單價等),從(cong)而(er)根據(ju)需(xu)求(qiu)(qiu)響(xiang)應減少(shao)電(dian)力(li)消費(fei)量。
怎么讓智能電表更加省電?
作為(wei)智(zhi)(zhi)能(neng)(neng)電(dian)(dian)(dian)網中為(wei)基(ji)礎的(de)(de)設備(bei)之一,智(zhi)(zhi)能(neng)(neng)電(dian)(dian)(dian)表(biao)(biao)本(ben)身的(de)(de)節能(neng)(neng)技(ji)術也在(zai)不斷受到(dao)關注。因為(wei)智(zhi)(zhi)能(neng)(neng)電(dian)(dian)(dian)表(biao)(biao)需(xu)要使(shi)用(yong)(yong)專(zhuan)用(yong)(yong)的(de)(de)電(dian)(dian)(dian)池(chi),如(ru)果智(zhi)(zhi)能(neng)(neng)電(dian)(dian)(dian)表(biao)(biao)很耗(hao)電(dian)(dian)(dian),電(dian)(dian)(dian)池(chi)的(de)(de)壽命就(jiu)會(hui)縮短,表(biao)(biao)內電(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)量不足(zu)還會(hui)影響計(ji)量和(he)用(yong)(yong)戶(hu)(hu)用(yong)(yong)電(dian)(dian)(dian)。要為(wei)數以千萬計(ji)的(de)(de)智(zhi)(zhi)能(neng)(neng)電(dian)(dian)(dian)表(biao)(biao)更(geng)換電(dian)(dian)(dian)池(chi)對電(dian)(dian)(dian)力公司和(he)用(yong)(yong)戶(hu)(hu)都是(shi)一件繁瑣和(he)耗(hao)費(fei)成本(ben)的(de)(de)事。
為解(jie)決上(shang)述問(wen)題(ti),可以使用(yong)安森(sen)美半(ban)導(dao)體的(de)一些有(you)針對(dui)性的(de)解(jie)決方(fang)案,從設計之(zhi)初就解(jie)決智能電(dian)表的(de)耗電(dian)問(wen)題(ti)。
電源管理和穩壓方案:
在(zai)這方面半導體有(you)豐富的器(qi)件可供使用,比如在(zai)AC-DC轉換應(ying)用方面,有(you)用于(yu)低功率(lv)離(li)(li)線電源(yuan)的自供電高電壓(ya)(ya)單片開(kai)關穩壓(ya)(ya)器(qi)NCP1010-4、用于(yu)中等功率(lv)離(li)(li)線電源(yuan)的單片開(kai)關穩壓(ya)(ya)器(qi)NCP1027、高電壓(ya)(ya)門控振(zhen)蕩器(qi)單片開(kai)關穩壓(ya)(ya)器(qi)NCP1050-5;
在DC-DC轉(zhuan)換應用方面,有(you)3A開關(guan)穩(wen)(wen)壓(ya)器(qi)NCP3170和NCP3155、1.5開關(guan)穩(wen)(wen)壓(ya)器(qi)或用作高達5A控制器(qi)的(de)NCP3063/4、0.5A/1.0 A/3A開關(guan)穩(wen)(wen)壓(ya)器(qi)LM2594/5/6、PWM控制器(qi)NCP3020/11和NCP1034;在LDO方面,有(you)500mA LDO線性(xing)(xing)穩(wen)(wen)壓(ya)器(qi)NCP5500、200mA輸(shu)出LDO線性(xing)(xing)穩(wen)(wen)壓(ya)器(qi)NCP4588、50/150mA線性(xing)(xing)穩(wen)(wen)壓(ya)器(qi)NCP4640/1、100mA LDO線性(xing)(xing)穩(wen)(wen)壓(ya)器(qi)LP2951和80mA LDO線性(xing)(xing)穩(wen)(wen)壓(ya)器(qi)NCP562。這些電源方案具有(you)高能效(xiao)、低能耗及豐富的(de)保護特(te)性(xing)(xing)等(deng)特(te)點,非常適(shi)合智(zhi)能電表(biao)應用。
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