| A method about analysis, calculation and protection of electrified railway's interference to communication is introduced in this paper. The system provides a measure of electromagnetic analysis and calculation method for the technical engineers which have been working for EMC and communication protection. The main purpose of this system is to provide a method for analysis and a set of soft for calculation for resistive coupling influence and inductive coupling influence, and provides some protection measures.In this paper, the theoretical calculation is finished by meaning of Powerbuilder, the critical curve is drawn by Matlab. The system has many obvious advantages, such as calculation is of high accuracy, the operation is of very simply. During the programming of software, some control objects are used, such as CommandBotton Datawindow, DropDownListBox, TAB, etc. At the same time, in order to avoid wasting memory space, related Database technical is also used. In this system, SQL is used to realize the access to Database, the application program use ODBC function, give a SQL request to Database will avoid the direct access to Database. The main creative point is that critical safety distance can be obtained by the system, it will resolve the problem which has been existing in telecommunication protection.The paper introduces the system from the following aspects: the design target, the design and implement, protection measures. The paper focus on the electromagnetic analysis, program design. |
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