Calculation method of line loss in distribution network based on load distribution coefficient and current equivalent time

A technology of load distribution coefficient and equivalent time, which is applied in calculation, computer-aided design, system integration technology, etc., to achieve the effect of easy understanding of the method, easy acquisition of data, and improvement of calculation speed

Active Publication Date: 2022-07-12
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +1
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Problems solved by technology

This method takes into account the influence of the load distribution coefficient, but it cannot avoid the influence of sudden abnormal values ​​on the accuracy of line loss calculation

Method used

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  • Calculation method of line loss in distribution network based on load distribution coefficient and current equivalent time
  • Calculation method of line loss in distribution network based on load distribution coefficient and current equivalent time
  • Calculation method of line loss in distribution network based on load distribution coefficient and current equivalent time

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Embodiment Construction

[0034] Below in conjunction with embodiment, the present invention is further illustrated in detail.

[0035] refer to figure 1 , the calculation method of distribution network line loss based on load distribution coefficient and current equivalent time, the steps are as follows:

[0036] Step 1. Obtain real-time current data at the head end of the line: T Indicates the running time of the distribution transformer, Δ t represents the current sampling time interval, in T=N* Δ t Get N current values ​​in time I i . Taking the electric energy metering system as an example, the electric energy metering system generally collects a current value in 15 minutes, and a total of 96 current values ​​per phase per day. I i ( i ∈ [1, 96]). Taking the specific distribution line of a company as an example, 96 data points of real-time current at the head end of the line on a certain day are obtained.

[0037] Step 2: Obtain the capacity, model parameters, measurement point locatio...

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Abstract

The invention belongs to the technical field of distribution network data processing, and discloses a distribution network line loss calculation method based on load distribution coefficient and current equivalent time, obtains real-time current data at the head end of a line; Load type; calculate the total resistance of the main line of the line; determine the relationship between the line and the line change; calculate the loss of the transformer, including no-load loss and load loss; calculate the loss during the transmission process of the line; After the current equivalent action time is introduced in the invention, the power loss is calculated by the algebraic average value of the current, which weakens the influence of the abnormal value of the acquisition on the accuracy of the line loss calculation, and can greatly improve the calculation speed; the load distribution coefficient is introduced to achieve The theoretical line loss effect of distribution lines is more accurately calculated, and the calculation method is simplified.

Description

technical field [0001] The invention belongs to the technical field of distribution network data processing, and in particular relates to a distribution network line loss calculation method based on a load distribution coefficient and a current equivalent time. Background technique [0002] With the development of society, energy conservation and consumption reduction work has been highly valued by the government, enterprises and society. How to strengthen refined line loss management in the power industry. However, due to the complexity of the distribution network lines and the inaccuracy of basic information and ledger, the traditional line loss management relies on actual monitoring and measurement, and only obtains actual results, and clears the room for improvement. To judge the level of line loss management, it is necessary to analyze the theoretical line of the line Therefore, it is necessary to design a fast and accurate calculation method of distribution network li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/18G06F113/04G06F119/06G06F119/12
CPCY04S10/50
Inventor 熊健豪郭紫华蔡木良刘卓睿刘蓓邓志祥徐在德安义郭亮蒙天骐
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST
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