Assistant decision making method for quick power rationing of regional power grids

Abstract

The invention provides an assistant decision making method for quick power rationing of regional power grids. Based on an intelligent regional power grid scheduling technology support system, the assistant decision making method includes the steps of S1, establishing a corresponding relation table according to a line disconnecting sequence table and a regional system model; S2, according to real-time load data of equipment, the line disconnecting sequence table and a target value of for load relief, performing line disconnecting sequence optimizing computation to obtain a line disconnecting operation table of line disconnecting equipment with load relieved; S3, acquiring real-time monitoring information of line disconnecting load and displaying the same on a man-machine interaction interface, manually adjusting the line disconnecting operation table by selecting a line disconnecting strategy on the man-machine interaction interface, and obtaining breakers, corresponding to the line disconnecting equipment, in the line disconnecting operation table according to the corresponding relation table; and S4, remotely operating a breaker switch sequence provided by the line disconnecting operation table and needs to be operated. By the aid of the assistant decision making method for quick power rationing of the regional power grids, manual operation steps as well as manual computation are reduced, operation time of the power rationing is greatly shortened, and operational accuracy is improved.

Description

technical field [0001] The invention relates to the field of electric power system dispatching automation, in particular to an auxiliary decision-making method for rapid power rationing in regional power grids. Background technique [0002] Rapid power rationing in regional power grids means that in the event of an accident in the power grid or an imbalance between power supply and demand, the provincial dispatcher issues an order to the prefecture-level dispatcher for the capacity of the route. Or the sequence table of the accident pulling line, manually check and arrange the pulling line combination according to the real-time data, and the power substation monitoring personnel will pull the power supply line circuit breaker to stop the power supply forcibly. During the process of issuing the removal order, the dispatcher needs to manually check SCADA (Supervisory Control And Data Acquisition, Data Acquisition and Supervisory Control) system telemetering and telesignaling d...

AI Technical Summary

Problems solved by technology

[0004] 1. The degree of automation is low, the management process is lacking, and the manual operation is the main method. The records of the pull and recovery time of the two external lines, the load of the pull, and the statistics of the power loss all need to be manually processed by the dispatcher, which greatly increases the dispatching time. staff workload

[0005] 2. There are many intermediate links. For example, manual checking and calculation are required for arranging lines. The issued instructions need to correspond to different monitoring or substation operators one by one. The entire execution process takes a long time and cannot quickly control the load.

[0006] 3. Manual wiring is complex and lacks auxiliary decision-making means. After receiving the task, the ground dispatching dispatcher completely relies on manual analysis. In the selection of the pulling operation, it needs to be determined by comparing the pull-limiting sequence table and the current real-time operation status of the current grid load. Effective auxiliary decision-making means, resulting in inefficient decision-making, and the possibility of mis-scheduling and misoperation

[0007] 4. The efficiency of road pulling is low. When multi-way road pulling is carried out, there is a lack of effective closed-loop control means and measures. The efficiency of road pulling is low, and even the phenomenon of not being able to pull roads in time can not respond to dispatching needs in a timely manner, which affects the safe and stable operation of the power grid. At present, the dispatchers in various regions have not provided effective management and technical means for power rationing

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