ATV31HU40N4
ATV31HU40N4
ATV31HU40N4
《聯(lián)系人；歐先生》
智能電網(wǎng)作為未來(lái)電網(wǎng)發(fā)展的愿景，其自身必然對(duì)技術(shù)的發(fā)展具有指導(dǎo)和引領(lǐng)作用，其技術(shù)涉及到電力系統(tǒng)的發(fā)、輸、變、配、用電等方面。根據(jù)各國(guó)對(duì)智能電網(wǎng)的研究與總結(jié)，智能電網(wǎng)應(yīng)該具備以下幾個(gè)方面的特性：需要具有自愈能力、具有高可靠性、資產(chǎn)優(yōu)化管理、經(jīng)濟(jì)高效、與用戶友好互動(dòng)、兼容大量分布式電源的接入。
針對(duì)云計(jì)算數(shù)據(jù)機(jī)房的規(guī)劃設(shè)計(jì)，與其相關(guān)的主要應(yīng)該是配電和用電兩個(gè)方面。是否可以將智能電網(wǎng)的配電和用電技術(shù)用于云計(jì)算數(shù)據(jù)機(jī)房的規(guī)劃設(shè)計(jì)中，實(shí)現(xiàn)更優(yōu)化的云計(jì)算數(shù)據(jù)中心機(jī)房呢
一、智能電網(wǎng)新型配電技術(shù)的應(yīng)用
未來(lái)的配電技術(shù)必須具有如下特點(diǎn)：網(wǎng)絡(luò)快速自愈、抗擾動(dòng)能力強(qiáng)、提供優(yōu)質(zhì)電力、與用戶互動(dòng)等。這些智能電網(wǎng)配電技術(shù)都會(huì)促進(jìn)云計(jì)算數(shù)據(jù)機(jī)房的供電系統(tǒng)更加安全可靠。
1、同步開(kāi)斷技術(shù)
云計(jì)算數(shù)據(jù)中心機(jī)房中，由于電力需求量大，常涉及到高壓供電。目前的高壓開(kāi)關(guān)大都是機(jī)械開(kāi)關(guān)，開(kāi)斷時(shí)間長(zhǎng)、分散性大。這種慢過(guò)程的機(jī)械開(kāi)斷容易引起操作過(guò)電壓，加速設(shè)備老化或者直接損害設(shè)備。同步開(kāi)斷，又稱智能開(kāi)關(guān)，是在電壓或電流的指定相位完成電路的斷開(kāi)或閉合。采用電子開(kāi)關(guān)取代機(jī)械開(kāi)關(guān)控制工程網(wǎng)版權(quán)所有，在理論上應(yīng)用同步開(kāi)斷技術(shù)可完全避免電力系統(tǒng)的操作過(guò)電壓。這樣，由操作過(guò)電壓決定的電力設(shè)備絕緣水平可大幅度降低，由于操作引起設(shè)備(包括斷路器本身)的損壞也可大大減少。
2、故障電流限制技術(shù)
由于云計(jì)算數(shù)據(jù)中心的規(guī)模，數(shù)據(jù)中心的用電電流是很大的，短路電流也呈日益增大的趨勢(shì)，如果不采取有效的抑制短路電流的措施，一旦發(fā)生短路故障，開(kāi)關(guān)及用戶設(shè)備將是無(wú)法承受的。隨著電力電子技術(shù)、超導(dǎo)技術(shù)等的發(fā)展，限制短路電流已成為可能，這就依賴于故障電流限制器(FaultCurrentLimiter,FCL)的研制和開(kāi)發(fā)。國(guó)外對(duì)超導(dǎo)FCL和電力電子FLC研究較多，這可以在云計(jì)算數(shù)據(jù)中心中借鑒和應(yīng)用。
3、主動(dòng)配電網(wǎng)技術(shù)
未來(lái)“主動(dòng)配電網(wǎng)”可能采取類似英特網(wǎng)的形式，即分布式?jīng)Q策和雙向潮流。在遍布全系統(tǒng)的所有節(jié)點(diǎn)上都將有控制設(shè)備。主動(dòng)配電網(wǎng)的功能是將電源和用戶需求有效連接起來(lái)，允許雙方共同決定如何最好地實(shí)時(shí)運(yùn)行。要達(dá)到這一要求，控制水平要遠(yuǎn)高于目前配電網(wǎng)的水平。這包括潮流評(píng)估、有競(jìng)爭(zhēng)力的電壓控制和保護(hù)技術(shù)CONTROL ENGINEERING China版權(quán)所有，以及比目前配電網(wǎng)擁有更多的傳感器和自動(dòng)裝置的新型通信控制系統(tǒng)等，實(shí)現(xiàn)云計(jì)算數(shù)據(jù)中心供電系統(tǒng)的主動(dòng)預(yù)警，負(fù)載均衡和三相平衡等。
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