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Control method of high-efficiency wide-input energy bidirectional flow power supply

A technology of power supply and two-way flow, which is applied in the direction of DC power input conversion to DC power output, AC power input conversion to DC power output, control/regulation system, etc., which can solve the problem that the power supply cannot adapt to wide input power and cannot realize Energy two-way transmission and other issues, to achieve the effect of high market application value, ingenious design, portability, and high reliability

Inactive Publication Date: 2020-01-10
NORTH CHINA INST OF SCI & TECH
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Problems solved by technology

[0008] In view of the deficiencies in the above-mentioned prior art, the present invention provides a control method for a power supply with high efficiency and wide input energy bidirectional flow, which can solve the problem that the power supply in the prior art cannot adapt to a wide input power supply and cannot realize bidirectional transmission of energy. technical issues

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  • Control method of high-efficiency wide-input energy bidirectional flow power supply
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  • Control method of high-efficiency wide-input energy bidirectional flow power supply

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Embodiment Construction

[0047] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The implementations are only some of the implementations of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] see Figure 3 to Figure 4 , image 3 It is a schematic structural diagram of a control method for a power supply with high efficiency and wide input energy bidirectional flow provided by Embodiment 1 of the present invention, Figure 4 A two-way flow chart of energy supply and storage in the control met...

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Abstract

The invention relates to the technical field of power supplies, and discloses a control method of a high-efficiency wide-input energy bidirectional flow power supply. When the power supply supplies energy to a load or a power grid, a bidirectional DC / DC converter, a first bidirectional H-bridge converter, a high-frequency transformer module and a second bidirectional H-bridge converter are controlled to enable an energy storage battery pack to output a first DC voltage to a bidirectional DC / AC module, and the bidirectional DC / AC module is controlled to convert the first DC voltage into a firstAC voltage. When the power supply stores energy, the bidirectional DC / AC module is controlled to convert a second AC voltage provided by the load or the power grid into a second DC voltage, and the bidirectional DC / DC converter and the second bidirectional H-bridge converter are controlled to output the second DC voltage to the energy storage battery pack. The scheme can adapt to power supplies input in different specifications, and bidirectional flow of energy can be adjusted.

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to a control method for a power supply with bidirectional flow of high-efficiency and wide-input energy. Background technique [0002] With the continuous development of the global economy and the continuous growth of the world population, human beings are increasingly inseparable from electric energy. But now with the rapid development of science and technology, the full utilization of solar photovoltaic power generation, wind power generation, renewable energy, grid or other power supply sources combined with various energy storage batteries, etc., human beings are faced with many power supply problems : (1) The demand for electric energy continues to grow, and with the continuous consumption of traditional fossil energy coal, oil, and natural gas, and they are non-renewable, it is impossible for them to meet all of our power supply needs; (2) With the continuous consumptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02M3/335H02M7/797
CPCH02J3/32H02M3/33584H02M7/797
Inventor 邓永红张全柱孙英娟马红梅雷旻薛伟宁赵立永
Owner NORTH CHINA INST OF SCI & TECH
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