DC-DC converter main circuit for high-power wide-range voltage input
A DC-DC, wide-voltage input technology, applied in the field of power transmission and transformation, can solve problems such as waste
Inactive Publication Date: 2015-05-06
国充充电科技江苏股份有限公司 +1
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Problems solved by technology
In this process, the DC electric energy output by the DC power supply is changed into heat energy by electric furnace wires, light bulbs, etc., which is wasted in vain.
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[0029] Such as figure 2 As shown, the 16 basic units of the present invention are respectively composed of a high-frequency pulse transformer T, a high-frequency rectifier diode D, a high-power triode IGBT and a base driver of the high-power triode IGBT. The primary and secondary coils of the high-frequency pulse transformer T are connected into a flyback type. The primary non-identical end of the high-frequency pulse transformer T is connected to the collector of the high-power transistor IGBT, and the non-identical end of the secondary coil of the high-frequency pulse transformer T is connected to the high-frequency Positive terminal of rectifier diode D.
[0030] Such as figure 1 As shown, the present invention is provided with 16 basic units, 15 first electronic switches, 15 second electronic switches, 8 third electronic switches and 7 fourth electronic switches.
[0031] The negative ends of the high-frequency diode D of each basic unit are commonly connected to an acc...
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The invention discloses a DC-DC converter main circuit for high-power wide-range voltage input and relates to the technical field of power transmission and transformation. The DC-DC converter main circuit for the high-power wide-range voltage input comprises sixteen basic units, fifteen first electronic switches, fifteen second electronic switches, eight third electronic switches and seven fourth electronic switches. A DSP (digital signal processor) or a computer is programmed by combining the DSP or the computer and the high-power electronic switch technology with the optical fiber transmission technology, on or off of the corresponding electronic switches is controlled by the aid of digital signals, hardware circuit structures are reasonably and orderly combined along with decrease and increase of input voltage, a novel mode of using software to change the hardware main circuit structures is achieved, low-voltage large-current and high-voltage small-current input, namely the purpose of 'wide-range voltage input' is realized, and accordingly hardware cost is saved while equipment intelligent degree is improved, and 'intelligent collection' of direct-current electric energy with wide-range input voltage is realized.
Description
technical field [0001] The invention relates to the field of power transmission and transformation technology, in particular to the field of control technology for DC / AC conversion of the DC voltage generated in the industrial production process or the DC power generated by photovoltaic cells, and then sent to the power grid. Background technique [0002] At present, in the new energy industry, the so-called grid-connected technology mainly refers to the DC / AC conversion of the DC power of 600V~700V DC voltage generated by photovoltaic cells, and then sends it to the grid. In fact, the DC energy generated in industrial production is far more than the DC voltage of 600V~700V. Their voltage range can be between 5V~50,000V. For this part of energy, the input voltage range is too wide. There are certain technical difficulties in collecting them, and it has not yet attracted enough attention from the society. [0003] In industrial production, many industries will generate DC po...
Claims
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IPC IPC(8): H02M3/335
Inventor 夏建中吕德宽
Owner 国充充电科技江苏股份有限公司