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A fixed-point frequency-domain analysis system and method for transformer asymmetric magnetic bias problem

An asymmetrical, transformer-based technology, applied in the direction of the magnitude/direction of the magnetic field, spectrum analysis/Fourier analysis, instruments, etc., can solve the problem of less analysis of asymmetrical DC bias problems, reduce memory requirements, and improve computing rate, reducing the effect of repeat formation

Inactive Publication Date: 2021-02-05
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

At present, most of the transformers at home and abroad are analyzed on the DC bias of single-phase transformers, and there are few analyzes on the asymmetric DC bias of series transformers represented by three-phase shell-type transformers.

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  • A fixed-point frequency-domain analysis system and method for transformer asymmetric magnetic bias problem
  • A fixed-point frequency-domain analysis system and method for transformer asymmetric magnetic bias problem
  • A fixed-point frequency-domain analysis system and method for transformer asymmetric magnetic bias problem

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Embodiment Construction

[0041]The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0042]figure 1 It shows the structure diagram of the fixed-point frequency domain analysis system of the transformer asymmetrical magnetic bias problem of the present invention. The system includes:

[0043]The association establishment module is used to establish an association expression according to the first parameter related to the asymmetric magnetic bias problem, and transform the association expression by using fixed-point analysis technolog...

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Abstract

The invention relates to a fixed-point frequency-domain analysis system and method for transformer asymmetric magnetic bias problem. The method includes: establishing a correlation expression according to the first parameter related to the asymmetric magnetic bias problem, and using fixed-point analysis technology to analyze the correlation transform the expression; calculate the second parameter related to the asymmetric magnetic bias problem according to the established associated expression; receive the second parameter, and analyze the asymmetric magnetic bias problem of the transformer according to the second parameter , to obtain the analysis result, and display the second parameter and the analysis result. The analysis system and method of the series transformer under the condition of asymmetrical DC bias in the frequency domain provided by the present invention has high calculation efficiency and low memory requirement, and is suitable for large-scale DC bias analysis, thus providing a valuable tool for shell-type transformers. An important basis for production and manufacturing.

Description

Technical field[0001]The invention relates to the technical field of transformer DC bias magnetic detection, in particular to a fixed-point frequency domain analysis system and method for transformer asymmetric magnetic bias problems.Background technique[0002]The Unified Power Flow Controller (UPFC) combines the advantages of flexible AC transmission (FACTS) equipment, which can realize transmission line series and parallel compensation, impedance simulation, phase shift control, real-time power flow control and other functions, improve the power quality of the power system, and improve The capacity and stability of the transmission line optimize the reactive power configuration of the system.[0003]The series transformer is one of the important equipment in UPFC. The grid-side winding is connected to the transmission line, and the valve-side winding is connected to the converter valve. When the firing angle of the power electronic devices in the converter valve is unbalanced, a DC c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00G01R33/02G01R23/16
CPCG01R19/0092G01R23/16G01R33/02
Inventor 赵小军王瑞崔伟春苑东伟
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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