Manufacturing method of solar inverse output transformer with high European efficiency

Abstract

The invention discloses a manufacturing method of a solar inverse output transformer with high European efficiency. The manufacturing method of the solar inverse output transformer with the high European efficiency comprises the following steps of: firstly, setting the power class, the input voltage class and the output voltage class of a transformer; calculating the output current of a half power point according to the power class and the output voltage class; loading a preparation series according to the output voltage class and the output current, and synchronously selecting a triangular stereo iron core the section factor KD of which is between 0.83 and 1.10; and then, calculating the turn number N of the winding coil of the transformer; previously setting magnetic induction intensity BZ between 1.32 and 1.45; and assembling the iron core and the winding coil, and then, correcting the iron core and the winding coil by virtue of a testing machine to adjust the magnetic induction intensity, so that the efficiency peak value of the transformer is positioned on the coordinate of the half power point of the transformer. Therefore, not only are the functions of low noise and low loss reached, but also the European efficiency further can be up to above 99%, thereby improving the conversed economic benefit of a solar inverter better.

Description

technical field [0001] The invention relates to a solar inverter output transformer, in particular to a preparation method of a solar inverter output transformer with high European efficiency. Background technique [0002] In recent years, with the enhancement of people's awareness of environmental protection, more and more attention has been paid to renewable energy. In renewable energy, regardless of the quantity of resources, the universality of distribution or the reliability of technology, solar energy is superior to other renewable energy sources. At present, there are two main directions for the utilization of solar energy. One is to convert solar energy into heat energy, and the other is to convert solar energy into electrical energy (that is, commonly referred to as photovoltaic power generation). Solar AC power generation systems are generally composed of solar panels, charging The controller, inverter and storage battery are composed together, and the solar inver...

AI Technical Summary

Problems solved by technology

Generally speaking, copper loss refers to the loss caused by the resistance of the transformer coil; the iron loss of the transformer includes two aspects: one is the hysteresis loss. The change makes the molecules inside the silicon steel sheet rub against each other and release heat energy, thus losing a part of the electric energy; the other is eddy current loss. When the transformer is working, the magnetic force lines pass through the iron core, and an induced current will be generated on the plane perpendicular to the magnetic force lines , because the current forms a closed loop and forms a vortex, which causes the iron core to generate heat and consume energy

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