PGF2-22/006RE01VE4K現(xiàn)貨

2015年，高等教育教學(xué)評估中心與聯(lián)邦公共認(rèn)證中心簽訂了《合作備忘錄》和《開展中俄聯(lián)合認(rèn)證的合作協(xié)議》，揭開了用專家、、對國外高等教育進(jìn)行認(rèn)證的序幕，標(biāo)志著和開始走向舞臺(tái)。受邀請，先后派出三批專家擊百強(qiáng)大學(xué)的共3所高校8個(gè)專業(yè)進(jìn)行聯(lián)合認(rèn)證，認(rèn)證所采用的“五度”體系（目標(biāo)的達(dá)成度、社會(huì)需求的適應(yīng)度、師資和條件的支撐度、保障運(yùn)行的有效度、學(xué)生和用戶的滿意度）和“五新”評估（新理念、新、新、新技術(shù)、新文化）同行的高度評價(jià)和認(rèn)可，認(rèn)為不僅具有特色、水平，而且具有適用性，為大國工程教育乃至高等教育評價(jià)及保障提供了和。 內(nèi)涵發(fā)展，有特色的工科教學(xué)穩(wěn)步

2.5
局部系統(tǒng)應(yīng)用現(xiàn)場總線
自動(dòng)化技術(shù)的發(fā)展，帶來新型自動(dòng)化儀表的涌現(xiàn)，現(xiàn)場總線系統(tǒng)（FCS）是其中一種，它和DCS緊密結(jié)合，是提高控制信號(hào)傳輸?shù)臏?zhǔn)確性、實(shí)時(shí)性、快速性和機(jī)組運(yùn)行的安全可靠性，解決現(xiàn)場設(shè)備的現(xiàn)代化管理，以及降低工程等的一項(xiàng)先進(jìn)的和有效的組合。目前在西方發(fā)達(dá)國家，現(xiàn)場總線已應(yīng)用到各個(gè)行業(yè)，其中電力行業(yè)典型的是德國尼德豪森電廠2×950MW機(jī)組的控制系統(tǒng)，采用的就是PROFIBUS現(xiàn)場總線。
2.6
SIS系統(tǒng)的應(yīng)用發(fā)展
SIS系統(tǒng)是實(shí)現(xiàn)電廠管理信息系統(tǒng)與各種分散控制系統(tǒng)之間數(shù)據(jù)交換、實(shí)時(shí)信息共享的橋梁，其功能包括廠級實(shí)時(shí)數(shù)據(jù)采集與監(jiān)視，廠級性能計(jì)算與分析。在電網(wǎng)明確調(diào)度方式有非直調(diào)方式且應(yīng)用軟件成熟的前提下，可以設(shè)置負(fù)荷調(diào)度分配功能。設(shè)備故障診斷功能、壽命管理功能、系統(tǒng)優(yōu)化功能以及其它功能（根據(jù)電廠實(shí)際情況確定是否設(shè)置）。自從國家電力公司電力規(guī)劃總院在2000年提出這一概念和規(guī)劃后，至今估計(jì)有200家多電廠建立了SIS系統(tǒng)，可謂發(fā)展相當(dāng)迅速。
但是自從SIS系統(tǒng)投運(yùn)以來，其所起的作用只是數(shù)據(jù)的采集、存儲(chǔ)、顯示和可打印各類生產(chǎn)報(bào)表，能夠真正把SIS的應(yīng)用功能盡情發(fā)揮出來的很少，其面向統(tǒng)計(jì)／生產(chǎn)管理的數(shù)據(jù)分析工具，基于熱經(jīng)濟(jì)性分析的運(yùn)行優(yōu)化，以品質(zhì)經(jīng)濟(jì)性為目標(biāo)的控制優(yōu)化，以提高可靠性為目的的設(shè)備故障診斷等功能基本多數(shù)都未能付緒實(shí)施。其原因主要有設(shè)計(jì)不夠完善，多數(shù)SIS廠家并沒有完全吃透專業(yè)性極強(qiáng)的后臺(tái)程序及算法，使其在生產(chǎn)實(shí)際中未能發(fā)揮作用，加上與現(xiàn)場生產(chǎn)脫節(jié)，因此SIS代理商所能做的只是利用網(wǎng)絡(luò)技術(shù)，邊搭建一個(gè)基本的SIS 架構(gòu)邊進(jìn)行摸索。此外SIS應(yīng)涵蓋哪些內(nèi)容沒有統(tǒng)一的標(biāo)準(zhǔn)也緩慢了其功能的應(yīng)用。
但從大的方向上看，SIS系統(tǒng)的建設(shè)符合技術(shù)發(fā)展的需要和中國電力市場發(fā)展的趨勢，將給發(fā)電廠特別是大型的現(xiàn)代化發(fā)電廠帶來良好的經(jīng)濟(jì)效益。
三、國內(nèi)外主要制造商
目前上主要制造商有Foxboro(美)、SIEMENS(德)、ABB(瑞士)、Emerson(美)、HITACH(日)、LEEDS & NORTHRMP(美)、Honewell(美)、Hartmann & Braun(德)、Yokogawa(日)、等。
在國內(nèi)DCS廠家中，大的供貨商依次為：浙大中控、合利時(shí)、上海新華、上儀、四聯(lián)、威盛等。
在應(yīng)用DCS的過程中，我國科研技術(shù)人員在消化吸收國外技術(shù)的同時(shí)，自主創(chuàng)新我國自己的DCS，經(jīng)過多年努力，他們都已經(jīng)取得可喜的成果，如新華控制工程公司的XDPS-400、北京和利時(shí)的FOCS和國電智深公司的EDPF-NT，華能信息產(chǎn)業(yè)公司的PINECONTROL，都已在多個(gè)電廠試驗(yàn)應(yīng)用的基礎(chǔ)上，經(jīng)過改造提高后、達(dá)到或接近國外廠家同類的DCS水平，并已在600、1000WM機(jī)組改造或新建工程中得到廣泛應(yīng)用，受到電廠的歡迎和好評，且其價(jià)格低于國外成套進(jìn)口的設(shè)備。

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