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In accordance with the IEC61850 standard, future substation substation layer, the spacer layer, process layer, all seamless communication based on Ethernet, electrical equipment will be digital, intelligent. IEC 61850 standard online latching mechanism to achieve security of the process of switching operation, and define the bay level and substation level two levels of blocking communication method and realization of the latching mechanism CILO logic node. But for CILO specific implementations, but did not mention. On the other hand, with the growth of grid load, power transmission distance increases, a large number of high-voltage direct current transmission (HVDC) and Flexible AC Transmission Systems (FACTS) put into operation, the modern grid structure is becoming more complex, seek power system wide area the operation of the power system security has become an important issue to solve the above problem, the following research: (1) introduced IEC61850 standard based on the analysis of the standard error lockout prevention The GOOSE message passing, the blocking logic node CILO the internal structure, latching messaging, a replacement model for distributed collaboration mechanism, focusing on research applied to latch information passed. Combined with the concrete practice of power, to complete the establishment of the the lockout rule base and latch module, preliminary experiments using PLC. (2) analysis of the the WAN security atresia background and application requirements, on the the atresia concept of reasonable expansion, proposed the concept of wide-area protection layer. WAMS a large number of real-time data analysis and mathematical modeling, the layer is constructed based the PMU and SACDA data information WAN security lockout constraint indexes, constraints indicators as a dispatch center to send operating instructions and grid adjustable latching constraint condition. Complete the WAN security defense system, horizontal, vertical, horizontal and vertical mixing multiple communication modes coexist, the lock mode of the spacer layer, station level, wide-area protection layer, multi-layer logical interlock design, analysis of the layers of the main features. (3) an online import logic lockout rules, MAS Online atresia distributed intelligence mode. Agent, perform different tasks based on electrical equipment and functions set through mutual cooperation between Agent In this paper, the design of atresia. This mode some of the technical details of the Agent, including knowledge representation, task allocation, Agent internal design, etc. Agent communication primitives, of substation atresia communication needs expansion last verified by simulation designed in this paper feasibility.
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