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Substation load model parameter prediction method based on daily load curve

A technology of load models and forecasting methods, applied in forecasting, data processing applications, instruments, etc.

Inactive Publication Date: 2016-04-27
HUNAN UNIV +2
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Problems solved by technology

However, there is currently no load model that can meet the accuracy requirements of power system simulation calculation analysis.

Method used

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  • Substation load model parameter prediction method based on daily load curve
  • Substation load model parameter prediction method based on daily load curve
  • Substation load model parameter prediction method based on daily load curve

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Embodiment Construction

[0087] The substation load model parameter prediction method based on the daily load curve proposed by the present invention is described in detail as follows in conjunction with the accompanying drawings:

[0088] The general train of thought block diagram of the present invention is as figure 1 shown, including the following steps:

[0089] 1) Use the substation and user daily load curve data respectively provided by the distribution network SCADA system and the load control system for load forecasting, and obtain the equivalent daily load curve and substation daily load curve of various typical users on the day to be predicted;

[0090] 2) Combine the daily load curves of various typical users on the day to be predicted and the daily load curve of the substation to identify the composition ratio of typical users combined with the prediction obtained in 1), and obtain the composition ratio of various typical users of the substation on the day to be predicted;

[0091] 3) We...

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Abstract

The invention discloses a substation load model parameter prediction method based on daily load curves. The substation load model parameter prediction method comprises the steps of: firstly, carrying out load prediction by utilizing substation and user daily load data provided by a power distribution network automation platform, so as to obtain daily load curves of a substation and various kinds of typical users in a to-be-predicted day; secondly, identifying typical user composition proportion according to the obtained daily load curves of the substation and various kinds of typical users in the to-be-predicted day, so as to obtain various kinds of typical user composition proportions of the substation in the to-be-predicted day; thirdly, forming proportional weight by utilizing typical equipment element parameters and typical equipment to obtain load model parameters of the typical users; finally, and combining the load model parameters of the typical users with the various kinds of typical user composition proportions to form proportional comprehensive weight, so as to obtain substation comprehensive load model parameters in the to-be-predicted day. The load model parameters predicted by adopting the substation load model parameter prediction method can satisfy accurate power grid simulating calculation requirements, can increase simulating calculation results and decision-making accuracy, and can improve economical efficiency and security of a power grid.

Description

technical field [0001] The invention belongs to the technical field of power system analysis and control, and mainly relates to a method for predicting parameters of substation load models based on daily load curves. Background technique [0002] The power system load model has an important impact on the operation, analysis and control of the power grid. In the simulation calculation of the power grid, if the load model is not selected reasonably, the calculation results will deviate from the actual situation, or be conservative or optimistic. Here The decision-making on the calculation results may bring unnecessary waste of resources to the power system scheduling planning, or bring potential safety hazards to the stable operation of the power system. [0003] The rapid development of the power system and the continuous promotion of market-oriented operation have put forward new and higher requirements for the dispatching planning and stable operation of the power system, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06Y04S10/50
Inventor 李欣然郑柳柳宋军英罗昊屈星谭庄熙
Owner HUNAN UNIV
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