Redundant design method of intelligent primary equipment ied device

Abstract

The invention discloses a redundancy design method for intelligent primary equipment IED devices, which belongs to the technical field of power. A backstage system in a substation, a first LED device,a second LED device, a signal merging device and the primary equipment are built, simultaneous running and mutual standby of two sets of devices are realized, and the technical problem of redundancycontrol of the primary equipment body control cabinet is solved. Through simultaneous running of two sets of mutual-redundancy LED devices, information sharing and mutual standby, contents such as therelated data of the intelligent primary equipment, the running state and the control information are shared with the two sets of LED devices, information of the two sets of LED devices is ensured tobe consistent, the two sets of equipment can simultaneously perform data interaction with two sets of backstage systems, the running reliability of the equipment is improved, the fault rate is greatlyreduced, the economic loss is reduced, and the fault processing efficiency and the accuracy are improved.

Description

technical field [0001] The invention belongs to the field of electric power technology, in particular to a redundant design method of an intelligent primary equipment IED device. Background technique [0002] The primary equipment of the power grid mainly includes transformers and circuit breakers. In addition to the conventional protection and control system, these important primary equipment also have some control functions necessary for the operation of the body, such as body cooling control, gear adjustment, and SF6 leakage monitoring and control. These The control is usually designed and configured by the primary equipment manufacturer, and realized by the local control cabinet. As the voltage level of power transmission and transformation projects is getting higher and higher, there are more and more applications of UHV transformers and circuit breakers, and the requirements for system reliability are also getting higher and higher. Since the UHV engineering protectio...

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Problems solved by technology

[0004] 1. When a fault occurs inside the IED device, the device can only exit the operation and cannot continue to guarantee the normal operation of the main body, which affects the reliability of the system operation; 2. When the peripheral wiring or communication of the IED device fails, the device cannot detect it and can only Continue to operate with illnesses, which affects the reliability of system operation; 3. Due to the high equipment load and voltage level of UHV projects, the operating environment of the main control cabinet is also relatively harsh, which puts forward high requirements for the design reliability of IED devices , increasing the reliability design difficulty and cost of a single device

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