The Application Of COM Technology In Decision Support System For Energy Price Of Power Station

Along with innovation of power industry, the power market is establishing by step. The model of power supply has been changed, and now the power station needs to take part in competition by itself. Today, the power station not only has to be confronted with the risk of cost increasing, but also has to face the price competition from its rival. In this case, the most important problem is that how does a power station can do to strengthen the management and control, how to make a rational policy. The decision support system (DSS) is absolutely a new stage of the information system's research. As to be a modern measure, the DSS inosculates the computer technique,the information technique,artificial intelligence,management science,decision science,psychology,organism method and so on. Topically, with the improvement of computer science, DSS has got a great progress in many fields.COM (Component Object Model) is a kind of OOP technique which is developed by Microsoft, and the COM is used by many products of Microsoft. With the help of COM, we can create the system which is oriented to object, we can also solve the problem of expansibility and integration. The paper introduces the recent power market and the decision support system, and introduces the COM technique in order to solve the difficulty of plugging and playing, and seamless connecting.The paper mainly analyses the current decision support system in power market. Aiming at the problem of plugging and playing, and seamless connecting, the technique of COM is put forward. Compared with conventional decision support system, the system which based on COM has some advantage: be able to protect current resources of program, improve the efficiency of developing, and enhance the expansibility of the system. In this paper the author figures that the new modal of decision support system which based on COM has an advantage in opening, replanting, and expansibility. As a result, in the condition of protecting the present software recourse, COM establishes the foundation of plugging and playing, and seamless connecting.In the article, the decision support system based on COM is mainly analyzed, and the following researching and designing work is carried through:1. The module and logical designing in the decision support system is accomplished. The structure map of the system is worked out on the foundation of practical requirement in the power market.2. The method of using COM technique and its relative technique to design the modal base is put forward, and the resolvent is given.3. With the encapsulation concept in the, OOP, the modal . components encapsulated with ADO are designed andaccomplished, in order to operate the database easily.4. The toolbar in the decision support system is realized with the ActiveX control. Using the attribute and method of ActiveX control to load or hide the toolbar dynamically, as to ensure the safety of the system.5. To solve the large application of decision support system, the using of DCOM is brought forward, also using MTS.6. At last, the decision support system based on COM is accomplished, with accomplishment of its software designing, hardware designing and database designing.Based on COM, a decision support system is realized with VC++ 6.0 and SQL 2000, also some module in the system is achieved on the basis of COM.