Variable structure voltage conversion circuit, device and control method and storage medium
A voltage conversion circuit and voltage conversion technology, applied in control/regulation systems, high-efficiency power electronic conversion, DC power input conversion to DC power output, etc., can solve the problem that the topology of traditional converters cannot be changed, cannot meet various working conditions, complex stability issues
Active Publication Date: 2022-08-09
FENGHUO COMM SCI & TECH CO LTD
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[0005] Based on this, it is necessary to address the above technical problems and provide a variable structure voltage conversion circuit, equipment, control method and storage medium to solve the problems caused by traditional converters that cannot meet the output of various working conditions and complex working conditions because the topology cannot be changed. stability issues
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[0051] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings. Embodiments of the present application are presented in the accompanying drawings. However, the application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application.
[0053] It will be understood that the terms "first", "second", etc. used in this application may be used herein to descr...
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The present application relates to a variable structure voltage conversion circuit, device, control method and storage medium, wherein the variable structure voltage conversion circuit includes a main circuit unit, a voltage detection unit, a current detection unit, a main control unit, a switch tube driving unit and a structure selection unit. The main circuit unit selects the main circuit structure of the variable-structure voltage conversion circuit according to the structure selection signal, so as to convert the input voltage to a preset first voltage reference value; the voltage detection unit and the current detection unit are respectively used to detect the main circuit Cell output voltage V o and output current I o The main control unit is used to calculate the real-time load value and duty ratio; the structure selection unit is used to control the structure of the main circuit unit; the switch tube driving unit is used to drive the switch tubes in the main circuit unit. The above-mentioned variable-structure voltage conversion circuit can work in three different structures, possess three voltage conversion ratios, and output voltages with opposite polarities to the output voltage.
Description
technical field [0001] The present application relates to the technical field of voltage conversion, and in particular, to a variable-structure voltage conversion circuit, device, control method, and storage medium. Background technique [0002] Energy is the foundation of the development of human society. The increasing depletion of fossil energy and environmental problems make clean renewable energy the theme of the 21st century. Among the clean energy, photovoltaics are particularly favored. The power electronic converter is an important part of integrating photovoltaic power generation into the energy system. [0003] As the light intensity changes, the output voltage of the photovoltaic system will also fluctuate. However, due to the fixed topology structure of traditional power electronic converters, the voltage conversion ratio is often fixed. This makes it difficult for the converter to output a voltage that meets the requirements when the photovoltaic output volta...
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IPC IPC(8): H02M3/156H02M1/08
CPCH02M3/156H02M1/08Y02E10/56
Inventor 廖宇凯张桂东
Owner FENGHUO COMM SCI & TECH CO LTD