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An independent photovoltaic intelligent control method capable of fast charging and its device

An intelligent control and fast charging technology, applied in the direction of circuit devices, battery circuit devices, photovoltaic power generation, etc., can solve problems affecting the cleanliness of solar energy, increasing system operating costs, and affecting battery life, so as to improve charging efficiency and improve charging efficiency. speed and life extension effect

Inactive Publication Date: 2018-12-11
JIUJIANG UNIVERSITY
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Problems solved by technology

[0005] (2) The conventional charging method seriously affects the life of the battery, excessive replacement of the battery increases the operating cost of the system, and the high pollution during the production and scrapping of the battery seriously affects the cleanliness of solar energy

Method used

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  • An independent photovoltaic intelligent control method capable of fast charging and its device
  • An independent photovoltaic intelligent control method capable of fast charging and its device
  • An independent photovoltaic intelligent control method capable of fast charging and its device

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0032] Such as Figure 1-3 As shown, the independent photovoltaic intelligent control method according to the embodiment of the present invention includes the following steps:

[0033] S1: Divide the battery into two groups, that is, the battery group 1 6 and the battery group 2 7, and the electric energy output by the solar energy passes through the DC-DC1 conversion module 3, and the DC-DC2 conversion module 5 charges the battery group 1 6 and the battery group 2 7 respectively ;

[0034]...

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Abstract

The invention discloses an independent photovoltaic intelligent control method and device capable of fast charging. The method includes 1) dividing the storage battery into two groups, and the electric energy output by solar energy is sent to the two groups respectively through a DC-DC1 conversion module and a DC-DC2 conversion module. Battery charging; 2) The initial stage of charging; 3) When a group of batteries enters the fast charging mode, the battery pack 1 and battery pack 2 switch to the pulse charging mode; 4) In the pulse charging mode, the charging pulse of a group of batteries stops During charging intervals, discharge to another set of batteries; 5) When supplying power to the load, the first battery set supplies power to the load through the DC-DC1 conversion module, and the second battery set supplies power to the load through the DC-DC2 conversion module. The beneficial effect of the invention is that the charging speed and charging efficiency of the storage battery can be effectively improved, and the contradiction between the design requirements of the storage battery redundancy in an independent photovoltaic system and the difficulty of charging the storage battery within a day's sunshine is overcome.

Description

technical field [0001] The invention relates to solar charging control technology, in particular to an independent photovoltaic intelligent control method and device thereof capable of realizing fast charging. Background technique [0002] The structure of the existing independent photovoltaic intelligent control system is as follows: figure 1 As shown, its function is to charge the electric energy output by the solar panel into the storage battery with maximum efficiency, and according to the storage status of the storage battery and other control factors (such as day and night represented by light intensity, delay time and other factors), Realize the power supply control to the load. Its intelligent charging principle is to dynamically monitor the voltage U and current I output by the solar panel in real time during the charging process, and adopt Pulse-Width Modulation (PWM) in accordance with the Maximum Power Point Tracking (MPPT) method. The method is to control the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/35H01M10/44
CPCH01M10/441H01M10/446H02J7/0013H02J7/342H02J7/35Y02E10/56Y02E60/10
Inventor 高玉宝
Owner JIUJIANG UNIVERSITY
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