Verification method for non-power-cut replacement feasibility of spacer layer device of intelligent substation

Abstract

The invention discloses a verification method for non-power-cut replacement feasibility of an intelligent substation bay level device. The verification method comprises the steps that an intelligent substation SCD file is used for obtaining input configuration and output configuration of an original device and interaction configuration of an external device; generating and confirming the consistency verification script configuration of the new and old devices; engineering field configuration parameters of the original device are extracted and applied to the new device; an IEC61850 protocol simulation technology is used for simulating a field protocol interaction environment; synchronously verifying the consistency of functions and behaviors of the new and old devices in the simulation protocol interaction environment; and outputting verification information to a human-computer interface or a verification report. According to the method, consistency checking of functions and behaviors of a new device and an old device which are to be replaced is carried out by combining on-site configuration parameters of the on-operation intelligent station, the checked new device can completely replace the old device in functions and behaviors in the transformer substation, and replacement is completed in the state that power-off maintenance and debugging verification of the whole station are not needed.

Description

technical field [0001] The invention relates to the technical field of intelligent substation automation, in particular to a method for verifying the feasibility of replacement without power failure of a bay layer device of an intelligent substation. Background technique [0002] The smart substation has been developed for more than ten years. The devices in operation at the current stage will exceed the service life cycle one after another. Due to the differences in the service life of different types of devices and the development of technical transformation and capacity expansion, the The urgency of replacement of similar devices is different, and unified replacement and unified debugging cannot be achieved. In addition, with the increase of power supply reliability requirements year by year, it is more and more difficult to apply for a planned power outage in the substation in operation. It is very costly to apply for a power outage maintenance of the whole station in or...

AI Technical Summary

Problems solved by technology

[0002] The development of smart substations has a history of more than ten years. The devices in the station currently in operation will exceed the service life cycle one after another. The urgency of the replacement of different types of devices is different, and it is impossible to achieve unified replacement and unified debugging

In addition, with the increasing requirements for power supply reliability year by year, it is more and more difficult to apply for planned power outages in substations. It is very costly to apply for a power outage for the whole station to replace a single device. The cooperation and interaction between the smart station devices is very difficult even if the power outage is possible. It is difficult to complete the commissioning and verification work after the replacement of the device within a limited time, especially for the interlayer device that connects the previous and the next. To a certain extent, the predicament that the device has entered the scrapping period but dare not move or cannot be replaced

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