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Power grid AVC system operation parameter prediction method and system, and storage medium

A technology of operating parameters and forecasting methods, applied to load forecasting in AC networks, integration of power network operating systems, and power generation forecasting in AC networks, etc., can solve problems such as reducing system speed, not fully considering, and improving system performance. , to achieve the effect of shortening the running time, speeding up the execution speed and improving the data quality

Active Publication Date: 2022-03-25
STATE GRID HUNAN ELECTRIC POWER +1
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  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 1. In the prior art, the design and implementation of the AVC substation system in the pumped storage power station have been studied, and the effectiveness of the proposed strategies has been verified experimentally, but the parameters of the AVC system have not been tuned, nor have they optimized the AVC From the perspective of system parameters, to improve system performance
[0013] 2. In the prior art, the cost of power grid loss and the cost of equipment operation and inspection are also used as a common objective function, and the genetic algorithm is used to realize the proposed method, but it also does not optimize the parameters of AVC. Its direction rarely improves the parameters of the AVC system
There are also a number of evaluation indicators proposed in the operation of the power grid to effectively evaluate the performance of the AVC system, but the AVC parameters are also not optimized
[0014] 3. In the prior art, although the AVC parameters have been improved, the literature is segmented according to the load trend and processed in each segment, which will reduce the system speed to a certain extent. At the same time, AVC does not fully consider the different load trends. The overall change of each parameter
Using a clustering algorithm and discretizing continuous attributes, the prediction accuracy of the algorithm needs to be improved

Method used

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  • Power grid AVC system operation parameter prediction method and system, and storage medium

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specific Embodiment 1

[0067] see figure 2 , the present invention provides a prediction system for the operating parameters of the AVC system of the power grid, which realizes A high-quality and lightweight short-term prediction of various parameters of the grid AVC system is provided. Including grid control AVC system 1, grid operation parameter acquisition module 2, energy storage power station 3, capacitive reactor module 4, energy storage power station parameter acquisition module 5, data storage module 6, grid operation monitoring module 7 and grid abnormality warning module 8; The grid control AVC system 1 is respectively connected with the grid operation parameter acquisition module 2, the energy storage power station 3, the capacitive reactor module 4, the energy storage power station parameter acquisition module 5, the data storage module 6 and the grid operation monitoring module 7 in data communication , the grid operation monitoring module 7 is connected to the grid abnormality warnin...

specific Embodiment 2

[0077] Such as figure 1 As shown, the prediction method of grid AVC system operating parameter of the present invention comprises the following steps:

[0078] Step S1, from the grid operation database stored in the data storage module, respectively read the historical data of the last 3 months of the operating parameters of the grid in the AVC system, the operating parameters of the grid in the AVC system include the date D , time T, active power P, reactive power Q, current I, voltage VU, gear position T, compensation equipment status C, capacitive reactance equipment blocking status B, capacitive reactance equipment operating status R;

[0079] Step S2, performing abnormal data processing on non-time-type operating parameters among the operating parameters of the power grid read in step S1; wherein, when performing the abnormal data processing, the following formula is used to determine whether the operating parameters are abnormal :

[0080] x∈[μ-3σ,μ+3σ]

[0081] Among...

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Abstract

The invention provides a power grid AVC system operation parameter prediction method and system and a storage medium. By optimizing the AVC system parameters, the power grid AVC system parameters in a short period can be accurately predicted in real time, so that the accuracy of the AVC system for controlling the power grid is remarkably improved, and the performance and efficiency of the system are improved. According to the method, segmentation is not carried out according to load trends any more, a high-performance LightGBM algorithm is adopted, and the change conditions of various parameters under various load trend conditions are deeply mined; and a linear correlation algorithm is used for screening multiple types of attributes, so that the performance is ensured, and the algorithm speed is improved. According to the method, the operation parameters of the AVC system of the power grid can be accurately and quickly predicted through various optimization algorithms, so that the AVC system can better execute related operations on the power grid, and the electric energy quality in the power grid is further improved.

Description

technical field [0001] The invention relates to the technical field of grid AVC systems, in particular to a method, system and storage medium for predicting operating parameters of the grid AVC system. Background technique [0002] Voltage is an important indicator of power quality. With the rapid development of the national economy, my country's industrial and domestic electricity consumption has been rapidly improved. While the scale of the power grid continues to expand, it also puts forward high requirements on the power quality of the power grid. In order to fully guarantee the quality of electric energy transmitted in the grid, one of the important means is to use an automatic voltage control system (Automatic Voltage Control, AVC) of the grid. [0003] In recent years, with the continuous access of new energy sources and the diversification of load characteristics, the scale of the power grid is gradually expanding and becoming more and more complex. In order to sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/14G06N3/08G06N3/04
CPCH02J3/003H02J3/004H02J3/007H02J3/144G06N3/086G06N3/04Y02B70/3225Y04S10/50Y04S20/222
Inventor 王卓黄际元吴东琳陈远扬彭清文陈柏沅李雨佳胡湘伟阳小丹伍巧佳
Owner STATE GRID HUNAN ELECTRIC POWER