Research Of The Intelligent Substation Bay Level IED Hardware Platform

Along with the speedness development technic of the automatization of the transformer substation, communications and micro-electronics,there are lots of IED based on micro-electronics or micro-controller have emerged from the The automatic system of the transformer substation. The level of the automatization of the transformer substation improve endlessly,and the integration of the system becomes our future. The automatic system of the transformer substation for application is only live up to the digitalization of substation controller level and bay level.The protection devices and the measurement and control device of bay level sample the analog signal and the state of the breakers from the traditional current transducer and potential transformer through secondary cable,and control the electrical equipment by hardwire,still.They are not only fall short of IEC61850 standard which have described the future of the digital transformer substation ,but also have many problems about the signal interference with the practical operation.It can lead up to misoperation .So our design of IED of the bay level of the digital transformer substation which base on IEC61850 have important practice engineering significance.The paper base on IEC61850 and its new model ,begin its specialise study to solve the problems what have said above.At first,Consider whith the structure and capability that we need,It begin with choosing the chips,and put forward a plan of the IED which base on IEC61850.Then ,the paper research the board support packet driver,and of course introduce the advantage of the VxWorks system,and its operation mechanism principle,and demonstrate its real-time can content the system requirement .At last,by what the paper have done,it propose a plane that sample every digital signal from the source,realize the information integration,net communication,data sharing and base on IEC61850.Across this project,we build the main circuit,and obtain the conclusion what we expect,and provide the experiment basis for the finished product.