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Low-voltage distribution network line loss and reactive compensation collaborative optimization method

A low-voltage power distribution network, collaborative optimization technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, electrical components, etc., can solve problems such as high cost and data analysis isolation, and achieve intelligent management and economy. The effect of reliable operation

Pending Publication Date: 2020-03-13
HULUDAO POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER +2
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Problems solved by technology

[0004] In order to be able to solve the problems of traditional distribution stations with separate equipment, high cost and isolated data analysis, this invention proposes a collaborative optimization method for low-voltage distribution network line loss and reactive power compensation
This method realizes the intelligent management and economical and reliable operation of the distribution station area through the collaborative optimization method of line loss and reactive power compensation based on multi-dimensional data fusion, and solves the traditional technology of stand-alone equipment, high cost and isolated data analysis in the distribution station area. question

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  • Low-voltage distribution network line loss and reactive compensation collaborative optimization method
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  • Low-voltage distribution network line loss and reactive compensation collaborative optimization method

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[0035] Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] A collaborative optimization method for line loss and reactive power compensation of a low-voltage distribution network, comprising the following steps:

[0037] Step S1: Use the user voltage and current data provided by the smart meter on the low-voltage side of the distribution station area, as well as the data related to the grid connection of distributed power sources to for...

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Abstract

The invention provides a low-voltage distribution network line loss and reactive compensation collaborative optimization method. The method comprises the following steps: S1, acquiring accurate measurement data by utilizing user voltage and current data provided by an intelligent electric meter on the low-voltage side of a transformer area and considering the influence of grid connection of a distributed power supply; S2, correcting locally by adopting a Newton method, a sensitivity method and a loop method by taking a forward-backward sweep algorithm as a main body, and establishing an accurate three-phase load flow calculation model; S3, performing accurate analysis and calculation on theoretical line loss by utilizing the data and line parameters after load flow calculation; and S4, establishing a reactive power compensation optimization model of the power distribution network by taking the minimum line loss as an optimization purpose and taking the economy of reactive power compensation as a constraint condition, thereby realizing collaborative optimization of the line loss and the reactive power compensation. Intelligent management and economic and reliable operation of a power distribution area are realized. The method is suitable for being used as a line loss and reactive compensation collaborative optimization method based on multi-dimensional data fusion.

Description

technical field [0001] The invention relates to intelligent self-management and economical and reliable operation of distribution stations. In particular, it relates to a collaborative optimization method for line loss and reactive power compensation based on multidimensional data fusion. Background technique [0002] In the power system, the distribution network is responsible for directly transmitting the reduced-voltage power to users for use, becoming the last link in power production, transmission, and consumption, and directly affecting the reliability and quality of power supply for users. In recent years, with the rapid development of my country's science and technology, economy and other aspects, the related technologies of distribution network have been rapidly improved and developed. However, compared with the transmission network and high-voltage distribution network, the degree of automation of my country's medium and low-voltage distribution networks is still ...

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Application Information

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IPC IPC(8): H02J3/00H02J3/38H02J3/18H02J3/06H02J3/26
CPCH02J3/00H02J3/38H02J3/18H02J3/06H02J3/26Y02E40/30Y02E40/50
Inventor 朱连勇左越赵飞张博王忠锋张起柴硕王卓崔世界邵帅李力刚王志宏
Owner HULUDAO POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER
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