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An application for smart substation-oriented wide-area backup automatic switch

In recent years, smart substation is developing rapidly, many smart substation pilots have been established, the 66 k V grid-area in Chaoyang region has three smart substations which connect with each other, considering the actual situation, this paper proposes a wide-area backup automatic switch system which is suitable for smart substation. A wide-area backup automatic switch is put in the control center to realize real-time control. Meanwhile, the system extends the function of the backup automatic switch, which solves the supply problems. The system uses the fibre channel which is based on IEC61850 standard, and it can use the whole network information when getting information, forming control tactics and carrying out. It can work with security and stability of the device harmoniously. Finally, RTDS is used to simulate the system, and the test results show the feasibility of its application.