Continuous multi-winding combined transformer coil and loss soft-measurement method thereof

Abstract

The invention discloses a continuous multi-winding combined transformer coil and a loss soft-measurement method thereof and belongs to the technical field of transformer design and manufacture. The transformer coil is compact in structure, high in strength and stability and strong in short-circuit current impact resistance, is an integrated continuous multi-winding combined transformer coil with the advantages of compact structure, convenience for installation and reliable quality, can realize output of a plurality of voltages and currents, and overcomes the shortcomings of a sectional winding coil, such as large loss, big size and high manufacturing cost. An artificial neural network inversion soft-measurement method is used together with the transformer coil, and can quickly, real-timely and accurately measure the loss of a transformer on line. The continuous multi-winding combined transformer coil can replace a traditional integral transformer coil, is particularly suitable for a built-in transformer of power equipment, can be maintained and replaced locally, effectively controls noise, lowers eddy loss, improves the efficiency, meets the energy-saving requirement and creates long-term economic benefits.

Description

technical field [0001] The invention discloses a continuous multi-winding combined transformer coil and a soft measurement method for its loss, belonging to the technical field of transformer design and manufacture. Background technique [0002] Transformers are used to transform voltage and transmit electric energy. They are indispensable and important devices in power systems. In power systems, transformers are widely used, and their safe operation plays a very important role in the stability and normal power supply of the entire power system. . Silicon steel sheets plus windings are the main part of the transformer. The iron core of the transformer is not ordinary iron. It is generally a grain-oriented high-permeability cold-rolled silicon steel sheet (now there are better amorphous alloys), and its own loss (hysteresis loss and eddy current loss) is very small when it works. . The coil of the transformer carries the working current of the transformer, the primary side...

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Problems solved by technology

[0006] In view of the above reasons, the present invention introduces a continuous multi-winding combination transformer coil, which can overcome the shortcomings of segmented winding coils, such as large loss, large volume, and high manufacturing cost; supporting the use of a soft measurement method can be fast, real-time, and accurate On-line measurement of transformer loss

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