On-site module device of transformer substation process layer and control method thereof

Abstract

The invention discloses an on-site module device of a transformer substation process layer. The on-site module device comprises a backboard, a CPU plug-in, a man-machine plug-in, an I / O plug-in, a conventional transformer plug-in and / or an electronic transformer plug-in. The man-machine plug-in performs data interaction with the CPU plug-in, and controls one of the conventional mutual inductor plug-in and the electronic mutual inductor plug-in to be accessed; the conventional transformer plug-in converts signals transmitted by a voltage transformer and a current transformer of the transformersubstation and transmits the signals to an AD conversion loop of the CPU plug-in; the electronic transformer plug-in receives the FT3 message and transmits the FT3 message to the CPU plug-in for dataprocessing; and the I / O plug-in performs data interaction with the CPU plug-in through the CAN. The invention further discloses a control method of the on-site module device of a transformer substation process layer. By simplifying the equipment composition and the network structure and adopting the grounding module which is integrally designed with the primary equipment and is tightly coupled with the primary equipment, an intelligent terminal and a merging unit are replaced, and the device is adjusted according to the use environment, so that the intelligence and intensification of the primary equipment and a transformer substation are improved.

Description

technical field [0001] The invention relates to the technical field of electric power system automation, in particular to an on-site module device of a substation process layer and a control method thereof. Background technique [0002] The smart substation adds process-level devices such as merging units and smart terminals to the conventional substation architecture, which are used to realize the AC volume collection and switch volume processing of the primary equipment. The process layer network is added for information collection and communication between the process layer and the interval layer. During the operation of the intelligent station, the merging unit and intelligent terminal exposed some problems: a large number of secondary equipment such as merging unit, intelligent terminal, and switch were added to the process layer, which brought great pressure to daily operation and maintenance and troubleshooting; Units, smart terminals, switches and other equipment ha...

AI Technical Summary

Problems solved by technology

During the operation of the intelligent station, the merging unit and intelligent terminal exposed some problems: a large number of secondary equipment such as merging unit, intelligent terminal, and switch were added to the process layer, which brought great pressure to daily operation and maintenance and troubleshooting; Units, smart terminals, switches and other equipment have quality problems such as high hardware failure rate and many software defects, which can easily cause incorrect protection actions and increase the burden on users; the merging unit collects multi-channel sampling values, and the impact range is large when the device fails. In particular, the failure of the bus merging unit will cause a large number of bay layer equipment to work abnormally; the merging unit and intelligent terminal are arranged in an outdoor intelligent control cabinet, and the operating environment in the cabinet is harsh under high temperature, severe cold, rainy season and other climatic conditions; the internal space of the outdoor cabinet is small, and wiring Intensive, inconvenient for operation and maintenance

Images