Data Communication Module Design For Substation Environmental Monitoring

Substation is an important part of the grid, its reliable operation is of greatsignificance to the security and stability of the grid.Through research, we found thatthe number of substation is numerous, and running environment is complex, is apart of the power grid more unsafe. But with the progress of the society, more andmore people have high requirement to the reliability of power system, therefore, itis imperative to improve the level of information technology and automation ofsubstation that ensure the safe and steady operation of grid.In the paper, the various environment parameters affecting the safe and stableoperation of substation are fond by analyzing the reliability of the substationoperation.A design scheme for substation environment monitoring datacommunication module is put forward. The main contents are as follows:Firstly, finished the design work of communicate module’s circuit. Chose theSTM32F103ZET6chip set as the core, and in order to made it has virouscommunication functions, based on the modular designing idea, added CAN buscircuit, string mouth communication interface circuit and internet communicationinterface circuit. There are two main functions in this circuit. One is that collectingand computing the information from substations and sending the information toupper monitor system through internet based on communication protocol’s return.The other is receiving the information from upper monitor, translating it to the formwhich CAN bus can read and send out and sending it to sub-modules.Secondly, have finished the design of application in this communicate modulebased on the circuit, which includes the initiation of hardware and software, datacomputing and logical control. And I also finished the program and design workupon the communicate application among string mouth, CAN bus and internet. Ihave improved the effective by using interrupt model in business module’ simplement.