Judgment method for switch-in mode of cell panel and inverter
An access mode, battery board technology, applied in the measurement of electrical variables, the conversion of AC power input to DC power output, and the conversion of irreversible DC power input to AC power output, etc., can solve problems such as input power loss
Active Publication Date: 2014-08-06
SUNGROW POWER SUPPLY CO LTD
View PDF4 Cites 18 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In view of this, the present invention provides a method for judging the connection mode of a battery panel and an inverter to solve the problem of input power loss caused by wrong control in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0047] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0048] The invention provides a method for judging the access mode of a battery panel to solve the problem of input power loss caused by wrong control in the prior art.
[0049] Specifically, the method for judging the access mode of the battery panel is applied to an inverter in a photovoltaic power generation system, and the inverter includes: a multi-channel DC side circuit, an inverter bridge, and a controller. The multi-channel DC The side circuits all in...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an inverter and a judgment method for the switch-in mode of a cell panel. The judgment method includes the steps that the voltage values of the input ends of multiple direct current side circuits are detected through a controller; whether the difference value among all the voltage values is smaller than a preset value or not is judged; when the difference value is judged to be not smaller than the preset value, the cell panel is judged to be in an independent switch-in mode; when the difference value is judged to be smaller than the preset value, the cell panel is in a parallel connection switch-in mode as a default; when the cell panel is in the parallel connection switch-in mode as the default, the same current given value is generated and output through voltage control to direct current input of the multiple direct current side circuits, the voltage values of the input ends of the multiple direct current side circuits are detected again, and the switch-in mode is judged; the controller in the inverter has the function of judging the switch-in mode, actual judgment of a user is not needed, and the problem that input power loss is caused because the inverter adopts wrong control due to misjudgment of the user is avoided.
Description
technical field [0001] The invention relates to the technical field of photovoltaic power generation, and in particular to a method for judging the access mode of a battery panel and an inverter. Background technique [0002] Currently in the photovoltaic power generation system, due to the actual needs of the user for the configuration of the battery panel, the general system will adopt a multi-input access method, such as figure 1 As shown, two solar panels PV1 and PV2 are taken as an example for illustration. There are two access modes for the configuration of the solar panels by the application: independent access mode that is independent of each other and does not interfere with each other. At this time, its control adopts independent control ; Or connect the positive terminals of PV1 and PV2 of the two panels, and connect the negative terminals of PV1 and PV2, which is called parallel connection mode, and its control adopts parallel control. [0003] In the prior art,...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/48H02M7/538G01R19/165
CPCY02E10/56H02J3/38H02M7/48
Inventor 耿后来曹金虎金曼倪华伍永富李浩源
Owner SUNGROW POWER SUPPLY CO LTD