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Electric load model constructing method, device and equipment

A technology of power load and construction method, applied in the field of power load, can solve the problem of lack of small storage and fast transmission of accurate power load model, and achieve the effect of reducing the amount of collected data, saving storage and communication resources, and speeding up the transmission speed

Active Publication Date: 2019-04-16
GUANGDONG POWER GRID CO LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a method, device and equipment for constructing a power load model, which solves the existing technical problem of lacking an accurate power load model with small storage and fast transmission

Method used

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  • Electric load model constructing method, device and equipment
  • Electric load model constructing method, device and equipment
  • Electric load model constructing method, device and equipment

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Embodiment Construction

[0051] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0052] For ease of understanding, see figure 1 , a method for constructing a power load model provided in an embodiment of the present application, including:

[0053] Step 101: Perform real-time compressed sensing sampling on the acquired power load signal according to the random Gaussian measurement matrix, and transmit the obtained low-dimensional signal includ...

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Abstract

The invention discloses an electric load model constructing method, device and equipment. A random Gaussian measurement matrix is used to perform compressed sensing sampling on an electric load signal, the amount of collected data can be greatly reduced, therefore, storage and communication resources are saved, and the transmission speed is accelerated. After receiving a low-dimensional signal after the compressed sensing sampling, the signal is accurately recovered by using a Fourier-based sparse matrix recovery algorithm and a wavelet-based sparse matrix recovery algorithm according to a condition whether the low-dimensional signal belongs to a steady-state signal or a transient signal, a load static model and a load dynamic model are respectively constructed according to restored signalparameters, the models have the advantages of small storage, fast transmission and accurate modeling, and the technical problem of the lack of a precise electric load model with small storage and fast transmission is solved.

Description

technical field [0001] The present application relates to the field of electric load technology, and in particular to a method, device and equipment for constructing an electric load model. Background technique [0002] The electric load model is a mathematical equation and corresponding parameters that describe the power or current of the load port with the change characteristics of the port voltage and frequency. The load model has an important impact on the analysis and calculation of the power system. The inaccuracy of the load model has become a constraint for the power system. An important factor of simulation calculation accuracy, overly optimistic or pessimistic system analysis results due to inaccurate load models may bring huge losses to power system planning and operation, due to the randomness, time-varying nature and Due to the complexity, the problem of power load modeling has not been well solved. [0003] With the rapid development of network technology, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 曹华珍高崇吴亚雄唐俊熙李浩李阳张俊潇陈荃王天霖黄烨陈沛东何璇
Owner GUANGDONG POWER GRID CO LTD
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