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贵州十一选五直播开奖:西安論文翻譯:電廠生產日月報管理系統_Specialty translation_西安翻譯公司-西安天風翻譯咨詢有限公司-專業法律翻譯公司 - 贵州十一选五前三基本走势|贵州十一选五中奖价格表
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西安論文翻譯:電廠生產日月報管理系統
發布時間:2009-11-13  閱讀次數:11649  字體大小: 【】 【】【
西安論文翻譯基于web方式的電廠生產日月報管理系統
  
Web-based Managerial System for Daily & Monthly Production Reports of Power Plants
目前,我國電力工業管理體制正由計劃經濟向社會主義市場經濟過渡,隨著電力技術的發展、電力改革的不斷深入,廠網分開、競價上網已成必然。在舊的利益格局打破以后,發電方式、燃料成本、發電機組的參數和性能、管理水平等將成為決定我國發電公司競爭力的主要因素。所以,在確?;榘踩誦械那疤嵯?,使機組始終保持在最佳工況運行,最大限度地降低供電煤耗率是市場經濟對發電廠提出的現實要求?!?/FONT>
At present, our country’s managerial system of power industry is transforming from planned economy to socialist market economy. With the development of power technology and in-depth reform of power industry, it is imperative to carry out the separation of power generation and network operation as well as power bidding for power system. After the collapse of the old benefits pattern, power generation modes, fuel cost, parameters & performance of generating set and managerial level will be crucial factors deciding the competitiveness of power generation companies in our country. Consequently, it is a realistic requirement imposed by the market economy upon power plants to minimize coal consumption rate for power supply while maintaining optimal operation of generating sets on the premise of safe operation of generating set.
為了更好地控制設備和檢測運行參數,需要從現場采集大量的數據,這些數據除用于控制設備和事故報警外,還可用于一些能反映機組運行情況的指標的計算。然而,目前的DCS系統只停留在常規的檢測和報警,尚有大量的功能沒有挖掘出來,造成硬件資源的浪費?!?/FONT>
In order to better control equipments and inspect operational parameters, a mass of data needed to be collected from the site, which can not only be used for equipment control and accident alarm, but also can be employed in computation of some indexes indicating the operational status of generating sets. However, the current DCS just rests on conventional inspection and alarm with still lots of functions lying fallow, which leads to waste of hardware resources.   
如果進一步對各參數進行分析,完成二次計算對可控損失進行分析,及時準確的生成電廠生產日月報,把電廠生產運行情況及時的反映給領導層,可以發揮現有硬件資源的優勢,在不增加硬件投資或較少增加硬件投資的情況下,獲得較大的經濟效益。為此我們設計了基于Web方式的電廠生產日月報管理系統。
If further analysis made upon various parameters to complete the analysis of recomputation upon controllable loss so as to inform the leadership with the latest production & operation status by creating daily & monthly production reports of power plants, then the advantages of existing hardware can be brought into full play; hence, the economic benefits can be achieved on the premise of no or less increase of hardware investment. Therefore, we have designed the Web-based Managerial System for Daily & Monthly Report of Power Plant.
設計的任務是根據機組的運行參數生成能放映機組運行情況的生產日月報,把各項指標量化,通過這些報表能清楚的了解到電廠的運行情況。因此,電廠生產日月報管理系統具有很重要的意義。
The role of the design is to, in terms of daily & monthly reports generated by operational parameters reflectible of operational status of generating set, quantify various indexes. Thus, the operational status of power plants can be familiarized through these reports. In this regard, the daily & monthly production reports of power plant are of vital importance.
目前,國內外關于電廠機組指標計算的研究日趨成熟,在各電廠也有廣泛的實際應用,電廠現有的MIS系統中大多都集成有指標計算功能,也有獨立開發的軟件系統。但就其功能和適用范圍來說,都有一定的局限性,具體表現為:
Presently, researches on computing generating set indexes of power plants are increasingly sophisticated both at home and abroad with extensive applications in various power plants. The existing MIS is mostly integrated with index computation function as well as self-developed software system. With respect to either its function or applicable boundary, there are some limitations specifically embodied as follows:
(l)傳統手工方式從DCS或MIS等系統中取得實時數據,然后用手工方式來計算分析各項機組運行指標,由于需要處理的數據量大,難免出現統計不全、計算錯誤或上報不及時等現象,效率很低。現在僅有某些小電廠仍采用這種方式。
(1) Both the acquisition of real-time data from DCS or MIS and the subsequent computation and analysis upon various operational indexes of generating sets are treated manually, which will inevitably give birth to low efficiency work such as incomplete statistics, computing errors or undue reports on account of massive data treatment. Thus, such mode is only employed by a very few small-sized power plants.
(2)從國外引進的類似系統,價格昂貴且不一定能夠滿足國內火電廠機組指標計算的實際需要。因此,很少從國外引進。
(2) Introduction into similar system from abroad is expensive in price but not certainly satisfactory in meeting the actual demands for computing generating set indexes at home. Therefore, such introduction is rarely adopted.
(3)離線或半離線系統一般依靠人工輸入大量的原始數據,然后由系統完成計算。這種系統數據錄入量大、容易引入錯誤,而且摻雜進許多人為因素,導致了考核結果的可信度降低。
(3) Generally speaking, the offline or semi-offline system is relied on manual work to input massive original data, and then the system will complete the computation. This system is input with large quantity of data, which is likely to cause mistakes with many anthropic factors, resulting in reduced credibility of evaluation results.
(4)對于大機組大容量的新建廠和大、小機組兼有的改擴廠,其DCS系統一般都能采集到指標計算需要的實時數據,所以大多采用web方式計算機組的各項指標。這種方式是當前應用最多的方式,比起前幾種方式具有明顯的優勢,但也存在一些不足:采用的計算策略或計算方法存在不科學的地方;指標目標值的計算不準確。
(4) As for newly established power plants with large-sized generating sets and great capacity as well as extended power plants with both large and small generating sets, their DCS can, generally speaking, collect the real-time data needed for index computation, which accordingly is conducted in the form of web. Such mode is the mostly used at present, possessing remarkable advantages compared with the above-mentioned modes; however, there is still some disadvantages, such as some unscientific strategies or methods for computations are still in service; worse still, the computation of index target value is inaccurate.
(5)所有的指標分析計算系統都是各電廠根據自己的實際情況開發的,通用性很差或者根本不能通用。
(5) All index analysis & computation systems are developed by various power plants in light of their actual status, thus they are very poor or almost impracticable with respect to their universalities.
本文在對國內火力發電廠現有機組指標計算系統進行廣泛調研分析的基礎上,針對現存問題,提出了基于Web方式的指標計算,系統采用J2EE技術,MVC模式,增強了系統的通用性、安全性。
On the basis of extensive investigations and analysis upon existing generating set index computing system of thermal power plants and in view of existing problems, this paper puts forward Web-based index computation employed with J2EE technology and MVC mode so as to reinforce the universality and safety of the system.
本文介紹了J2EE的相關技術、體系結構。首先介紹了C/S結構和B/S結構,并討論了B/S結構相對于C/S結構的優勢。然后介紹了Microsoft.NET 開發平臺、體系結構和內部構成。接下來介紹SUN的J2EE的平臺,包括平臺模型、體系架構、組件技術及應用模式。最后對這兩種平臺進行了比較。
The paper also makes introduction to relative technologies and systematic structure about J2EE. At first, C/S structure and B/S structure are presented with discussion on the comparative advantage of B/S structure upon C/S structure; then the development platform, systematic structure and internal composition of the Microsoft.NET; next the SUN’s J2EE platform including platform model, systematic structure, component technology and applied mode; and finally draw a comparison between the two platforms.
在分析了系統架構之后,介紹了MVC模式,包括MVC的處理過程及其優缺點,比較了幾種MVC模式的實現技術。第三章重點分析介紹了實現MVC模式的一種優秀框架——Struts框架。
After making analysis upon systematic structure and introduction to MVC mode including treatment process and the merit and demerit of MVC as well as drawing comparisons of implementation technologies for several MVC modes, Chapter III mainly gives an introduction to the Struts framework, an excellent framework to realize MVC mode.
MVC是Model-View-Controller的簡稱,是20世紀80年代發明的一種軟件設計模型,至今己被廣泛使用,最近幾年被推薦為Sun公司J2EE平臺的設計模式,受到越來越多的Web開發者的歡迎。它已經成為最適合開發Web應用的模板。在MVC結構的框架中,Model組件用于描述應用程序中的數據以及操作該數據的方法,與用戶界面無關;View組件負責將數據展現給用戶;Controller組件將用戶操作翻譯為對Model組件的操作,接到Controller傳來的操作之后,Model再更新View,以及反映出數據的變化。
MVC is the abbreviation of Model-View-Controller, a software design mode invented in 1980s, which is widely used nowadays. In recent years, it is recommended as the design mode for J2EE platform of Sun Company, and thus becomes very popular among more and more Web developers. Moreover, it has become the most suitable templet to develop Web application. In the framework of MVC, the Model component is used for depicting data and methods to operate these data in applications, having nothing to do with user interface; the View component is responsible for display data to users; the Controller component translates user operation into the operation upon Model component, which will, after receiving the operation from Controller, renew View and display data variations
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