Reserved auto-switch-on method requiring free setting of fixed value based on trend direction partition topology

Abstract

The invention relates to a reserved auto-switch-on method requiring free setting of a fixed value based on a trend direction partition topology. The reserved auto-switch-on method is applied to powersystem network, wherein the power system network comprises a plurality of reserved auto-switch-on areas which are subjected to superior-junior series connection; and each of the reserved auto-switch-on areas comprises four kinds of equipment including a superior power supply, a corresponding level bus bar and incoming line, a corresponding level bus bar outgoing line, wherein the corresponding level bus bar outgoing line is used as the superior power supply of the next level of reserved auto-switch-on area. The reserved auto-switch-on method comprises the following steps: acquiring configuration parameters of all equipment in the power system network; judging the state of all equipment according to the configuration parameters and preset criterions; controlling the various reserved auto-switch-on areas, and searching the topmost level of reserved auto-switch-on area which can recover the power supply to apply the auto-switch-on action according to the sequences from the superior to thejunior in association with the configuration parameters, the state of the equipment and the action logic of the reserved auto-switch-on. According to the reserved auto-switch-on method disclosed by the invention, reserved auto-switch-on fixed values are not needed to be set from mounting and debugging of the device to operating maintenance.

Description

technical field [0001] The present disclosure relates to the technical field of electric power system relay protection and safety automatic devices, and in particular to a fixed-value-free-setting-free backup self-injection method based on the power flow direction partition topology. Background technique [0002] The backup power automatic switch-on device (abbreviation: standby automatic switch-on device) is widely used in substations with a voltage level of 220kV and below. Configuring a standby automatic switch-on device in a substation is an important means to ensure the stability of power grid power supply and the safety of users' electricity consumption. [0003] The standard "DL / T 526 Technical Specifications for Backup Power Automatic Input Device" provides 5 types of typical standby automatic switch-on schemes, among which the most common ones are segment (bridge) standby automatic switch-on, incoming line standby automatic switch-on and transformer standby automatic...

AI Technical Summary

Problems solved by technology

Due to the limitation of hardware resources, the traditional standby automatic switching device generally implements a single or a combination of two typical standby automatic switching schemes according to the busbar configuration, and cannot realize the standby automatic switching of multi-section buses involving multi-level substations.

[0004] In addition, the traditional standby automatic switching device needs to configure corresponding settings for each specific method of standby automatic switching. The setting of the setting needs to consider the actual situation of the projec

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