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A Load Modeling Method for Rural Load Types Based on Load Curve Decomposition

A rural load and load curve technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of weak regularity of load curves, difficult statistical results, and large workload.

Active Publication Date: 2016-08-31
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0006] (2) As time goes by, the actual load power, load composition, and network structure may change. If you want to do it once and for all after conducting a survey and statistical modeling work on the load, it is difficult to meet the accuracy requirements;
[0007] (3) The survey work needs to count the load composition and parameters of thousands of users, the workload is huge, and it is difficult to obtain accurate statistical results
[0013] (3) Rural loads are generally relatively small, the regularity of the load curve is not strong, and the proportion of special load curves is relatively high
[0014] (4) There are certain differences in the proportion of irrigation load occupied by different rural load lines

Method used

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  • A Load Modeling Method for Rural Load Types Based on Load Curve Decomposition
  • A Load Modeling Method for Rural Load Types Based on Load Curve Decomposition
  • A Load Modeling Method for Rural Load Types Based on Load Curve Decomposition

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Embodiment Construction

[0146] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0147] The invention provides a load modeling method for rural load types based on load curve decomposition. The method includes the following steps:

[0148] Step 1: Decompose the rural load curve and calculate the proportion of each load in the total rural load;

[0149] Step 2: Calculate static load equivalent parameters, dynamic load equivalent parameters and distribution network system impedance, and combine the topology data of the power supply area network of rural load nodes to obtain the rural load type load model.

[0150] According to the basic characteristics of the load curve of the rural load, the basic processing methods adopted are as follows:

[0151] (1) Since the rural loads are generally small and have poor regularity, the rural loads of the same substation are combined.

[0152] If it is not merged, it is difficult to obtain ideal decom...

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Abstract

The invention provides a load modeling method for rural load types based on load curve decomposition. The method includes the following steps: decomposing the rural load curve, and calculating the proportion of each type of load in the rural load; calculating the static load equivalent Parameters, dynamic load equivalent parameters and distribution network system impedance, combined with the topology data of the power supply area network of rural load nodes, the rural load type load model is obtained. The present invention provides a load modeling method for rural load types based on load curve decomposition. This method overcomes the shortcomings of the traditional statistical synthesis method and can quickly, conveniently and accurately model residential load sites. The load model generated by the present invention It can improve the accuracy of power grid simulation calculation and ensure the safe, reliable and economical operation of the power grid.

Description

technical field [0001] The invention relates to a modeling method, in particular to a load modeling method based on load curve decomposition in rural areas. Background technique [0002] Power system digital simulation has become the main tool for power system planning and design, dispatching operation and analysis research. The mathematical model of each component of the power system and the mathematical model of the whole system constituted by it are the basis of power system digital simulation. The accuracy of the model is directly related to Influence simulation results and decision-making schemes based on them. The model and parameters used in the simulation are important determinants of the accuracy of the simulation. At present, the detailed mathematical models and modeling techniques of generators, excitation systems, speed control systems, transformers, and transmission lines have been well developed. The electric load model is still relatively simple, and it is of...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 王琦汤涌龙飞王建明侯俊贤赵兵易俊张健刘丽平
Owner STATE GRID CORP OF CHINA
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