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An algorithm model implementation method and system for theoretical calculation of line loss in low-voltage station area

A technology of theoretical calculation and algorithm model, applied in the direction of calculation, computer-aided design, information technology support system, etc., can solve the problem of calculating the value without introducing the calculation model, unable to effectively solve the problem of accurate and effective calculation of line loss in low-voltage station area, etc.

Active Publication Date: 2022-07-12
王海
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Problems solved by technology

[0009] However, the disadvantage of the current phase separation and superposition method is: the data required by the theoretical algorithm, such as the three-phase four-wire current value I of a branch i Aij , I Bij , I Cij , I Nij etc., because it is difficult to calculate the value from the actual work without introducing the calculation model
[0010] None of the existing technologies can effectively solve the accurate and effective calculation of line loss in the low-voltage station area

Method used

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  • An algorithm model implementation method and system for theoretical calculation of line loss in low-voltage station area
  • An algorithm model implementation method and system for theoretical calculation of line loss in low-voltage station area
  • An algorithm model implementation method and system for theoretical calculation of line loss in low-voltage station area

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Embodiment

[0067] like Figure 1-Figure 3 As shown, in a first aspect, an embodiment of the present invention provides an algorithm model implementation method for theoretical calculation of line loss in a low-voltage station area, including the following steps:

[0068] S1. Draw the CAD diagram of the line in the station area, and formulate the rules for expressing the logical name of the line in the station area;

[0069] S2. Generate the topology structure data of the power grid in the station area according to the expression rule of the logic name of the station area;

[0070] S3. Obtain the operation data of the power grid in the station area, and generate complete data of the power grid in the station area according to the topology structure data of the power grid in the station area and the operation data of the power grid in the station area;

[0071] S4. Calculate the three-phase current of each node in the power grid according to the complete data of the power grid in the stat...

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Abstract

The invention discloses a method for realizing an algorithm model for theoretical calculation of line loss in a low-voltage station area. The topological structure data of the power grid in the district and the operation data of the power grid in the district are used to generate the complete data of the power grid in the district; according to the complete data of the power grid in the district, the three-phase current of each node in the power grid is calculated, and the three-phase currents of each node are superimposed and calculated to obtain the complete data of the power grid in the district. The superimposed value of three-phase current in the power grid line section; calculate the zero line current of each node in the power grid of the station area, and carry out the optimization of loss reduction and power saving. The invention also discloses an algorithm model realization system for the theoretical calculation of the line loss in the low-voltage station area. The invention can accurately calculate the three-phase current, current density, resistance, loss, and three-phase unevenness ratio of any line section in the low-voltage platform area, and optimize the loss reduction and power saving through the optimization algorithm, so as to realize the optimal connection of the low-voltage single-phase user phase sequence T connection. enter.

Description

technical field [0001] The invention relates to the technical field of low-voltage platform areas, in particular to an algorithm model implementation method and system for theoretical calculation of line losses in low-voltage platform areas. Background technique [0002] The power industry standard of the People's Republic of China, "Guidelines for Calculation of Electric Power Loss in Electric Power Networks", describes the calculation of electric energy loss in low-voltage power networks as follows: The low-voltage network has complex networks, uneven load distribution, and incomplete data, so generally only simplified methods can be used to calculate. There are generally two methods in the prior art: the platform loss rate method and the voltage loss rate method. The disadvantage of the station area loss rate method is that it belongs to an estimation algorithm, and lacks the network topology algorithm model of the station area. It can only be used for simple evaluation o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/18H02J3/00H02J3/26G06F113/04G06F119/02
CPCY02E40/50
Inventor 王博扬王海孙科
Owner 王海
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