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西安论文翻译:电厂生产日月报管理系统_Specialty translation_西安翻译公司-西安天风翻译咨询有限公司-专业法律翻译公司-权威英语翻译公司
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西安论文翻译:电厂生产日月报管理系统
发布时间:2009-11-13  阅读次数:7949  字体大小: 【】 【】【
西安论文翻译基于web方式的电厂生产日月报管理系统
 
Web-based Managerial System for Daily & Monthly Production Reports of Power Plants
目前,我国电力工业管理体制正由计划经济向社会主义市场经济过渡,随着电力技术的发展、电力改革的不断深入,厂网分开、竞价上网已成必然。在旧的利益格局打破以后,发电方式、燃料成本、发电机组的参数和性能、管理水平等将成为决定我国发电公司竞争力的主要因素。所以,在确保机组安全运行的前提下,使机组始终保持在最佳工况运行,最大限度地降低供电煤耗率是市场经济对发电厂提出的现实要求。 
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.
为了更好地控制设备和检测运行参数,需要从现场采集大量的数据,这些数据除用于控制设备和事故报警外,还可用于一些能反映机组运行情况的指标的计算。然而,目前的DCS系统只停留在常规的检测和报警,尚有大量的功能没有挖掘出来,造成硬件资源的浪费。 
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.  
如果进一步对各参数进行分析,完成二次计算对可控损失进行分析,及时准确的生成电厂生产日月报,把电厂生产运行情况及时的反映给领导层,可以发挥现有硬件资源的优势,在不增加硬件投资或较少增加硬件投资的情况下,获得较大的经济效益。为此我们设计了基于Web方式的电厂生产日月报管理系统。
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.
设计的任务是根据机组的运行参数生成能放映机组运行情况的生产日月报,把各项指标量化,通过这些报表能清楚的了解到电厂的运行情况。因此,电厂生产日月报管理系统具有很重要的意义。
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,国内外关于电厂机组指标计算的研究日趋成熟,在各电厂也有广泛的实际应用,电厂现有的MIS系统中大多都集成有指标计算功能,也有独立开发的软件系统。但就其功能和适用范围来说,都有一定的局限性,具体表现为:
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)传统手工方式从DCS或MIS等系统中取得实时数据,然后用手工方式来计算分析各项机组运行指标,由于需要处理的数据量大,难免出现统计不全、计算错误或上报不及时等现象,效率很低。现在仅有某些小电厂仍采用这种方式。
(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)从国外引进的类似系统,价格昂贵且不一定能够满足国内火电厂机组指标计算的实际需要。因此,很少从国外引进。
(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)离线或半离线系统一般依靠人工输入大量的原始数据,然后由系统完成计算。这种系统数据录入量大、容易引入错误,而且掺杂进许多人为因素,导致了考核结果的可信度降低。
(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)对于大机组大容量的新建厂和大、小机组兼有的改扩厂,其DCS系统一般都能采集到指标计算需要的实时数据,所以大多采用web方式计算机组的各项指标。这种方式是当前应用最多的方式,比起前几种方式具有明显的优势,但也存在一些不足:采用的计算策略或计算方法存在不科学的地方;指标目标值的计算不准确。
(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)所有的指标分析计算系统都是各电厂根据自己的实际情况开发的,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.
本文在对国内火力发电厂现有机组指标计算系统进行广泛调研分析的基础上,针对现存问题,提出了基于Web方式的指标计算,系统采用J2EE技术,MVC模式,增强了系统的通用性、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.
本文介绍了J2EE的相关技术、体系结构。首先介绍了C/S结构和B/S结构,并讨论了B/S结构相对于C/S结构的优势。然后介绍了Microsoft.NET 开发平台、体系结构和内部构成。接下来介绍SUN的J2EE的平台,包括平台模型、体系架构、组件技术及应用模式。最后对这两种平台进行了比较。
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.
在分析了系统架构之后,介绍了MVC模式,包括MVC的处理过程及其优缺点,比较了几种MVC模式的实现技术。第三章重点分析介绍了实现MVC模式的一种优秀框架——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的简称,是20世纪80年代发明的一种软件设计模型,至今己被广泛使用,最近几年被推荐为Sun公司J2EE平台的设计模式,受到越来越多的Web开发者的欢迎。它已经成为最适合开发Web应用的模板。在MVC结构的框架中,Model组件用于描述应用程序中的数据以及操作该数据的方法,与用户界面无关;View组件负责将数据展现给用户;Controller组件将用户操作翻译为对Model组件的操作,接到Controller传来的操作之后,Model再更新View,以及反映出数据的变化。
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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