Offline Configuration Resources about Smart substation Multi-dimensional and multi-objective customization and information merger is an important means of the development for the large-scale grid operation. In this paper, the method of smart substation model customization and information merger for multi-level control center is proposed. This paper puts forward the scheme、data flow and key technologies of model customization and information merger. The software of model customization and information merger, which can flexibly configure the rule of model reduction and information merger according to different scenarios, is designed and developed. The software is validated in the laboratory, which illustrates that idea of this paper has good potential value.

The sampling based on process bus is not widely used in smart substation because there are still some technical problems on synchronization, the design of network architecture and sampling data receiving and processing areas. There are some researches about the problems are carried out, but they only focus on part of them and cannot give the whole solution. In order to improve the reliability of network sampling, a new system method which includes all the segments of the sampling based on process such as the synchronization of data acquisition, data transmission, network optimization and data processing are presented. In the data acquisition segment, the synchronization based on IEEE1588 is provided, In the data transmission segment, a new hardware architecture which is based on FPGA+DSP+VxWorks is described, in the segment of network optimization, the topology structure and virtual LAN are suggested. At last, the automatic resampling is proposed in the data receiving and processing segment. It will be useful to improve the reliability of sampling based on process bus in smart substation.

The technology of secondary equipment condition diagnosis and failure functional recovery could improve security, stability and effectiveness in smart substation. The development of status diagnosis and trends is summarized , and outstanding issues are discussed. The program of state diagnosis and failure function recovery are proposed on the basis of exiting technology; diagnosis model based on IEC 61850network device discovery and failure function recovery, etc are mainly studied. The smart substation secondary equipment diagnostic and failure function recovery are explored, which meets the development of mart grid self-healing and self-control.

According to the new changes brought out by the smart substation, including disappearance of the traditional concept of terminal and replacement of the original point to point cable connection by optical fiber network, a new design method of GOOSE “virtual terminal” is put forward. The method contains GOOSE “virtual terminal”, virtual terminal logic connection line, GOOSE configuration table and virtual terminal information flow diagram, and solves some problems of digital protection, measurement and control device, such as without contact, no terminal, no wiring etc. of GOOSE information. The design method was applied in the engineering practice of the south of Changshu 500kV smart substation in Suzhou, and the effect of designing was very good.