Shadow shielding judgment device
By designing a shadow occlusion judgment device, using diodes and voltage recorders to monitor the voltage changes of solar cell strings, the problem that the existing technology cannot accurately understand the long-term shadow occlusion situation, and long-term monitoring and accurate analysis of shadow occlusion situation is achieved .
Patent Information
- Application Number
- CN202321825802.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-12
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2033-07-12
AI Technical Summary
The prior art cannot accurately understand the long-term shadow occlusion situation, resulting in the inability to effectively monitor the occlusion situation of solar panels.
A shadow shading judgment device is designed. By connecting the diode in series and parallel with the solar cell and connecting the voltage recorder to both ends of the diode, the voltage drop situation at both ends of the diode is recorded for a long time, thereby analyzing the long-term shadow shading situation.
It achieves an accurate understanding of long-term shadow occlusion, can track voltage or current data for a long time, and supports long-term monitoring.
Smart Images
Figure CN222509265U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic devices, in particular to a shadow shielding judgment device. Background Art
[0002] As the main force of new energy, solar cells are increasingly used in the power generation industry. Solar radiation is crucial to solar cell power generation. Whether a place is suitable for solar power generation and whether there is shadow is the most important factor in judging whether it is suitable for solar power generation.
[0003] However, current solar-powered terminal devices do not have the ability to sense the shading of solar panels. Currently, whether solar cells are blocked is usually determined by manual visual judgment, which is not conducive to long-term monitoring. It is impossible to accurately understand the long-term shadow shading situation. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a shadow occlusion judgment device, which overcomes the deficiencies of the prior art, can track voltage or current data for a long time, the data can be monitored for a long time, and the long-term shadow occlusion situation can be accurately understood.
[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0006] A shadow occlusion judgment device comprises a plurality of groups of battery strings, diodes, voltage recorders and resistors; each group of the battery strings is composed of a plurality of solar cells connected in series, the diodes are connected in parallel with the battery strings, the positive electrode of the battery string is connected to the negative electrode of the diode, and the negative electrode of the battery string is connected to the positive electrode of the diode; the two ends of the voltage recorder are respectively connected to the two ends of the diode, and the two ends of the resistor are respectively connected to the positive electrode and the negative electrode of the battery string.
[0007] Preferably, the battery string includes a first battery string and a second battery string, the diode includes a first diode and a second diode, the voltage recorder includes a first voltage recorder and a second voltage recorder, the first battery string and the second battery string are connected in series, the first battery string is connected in parallel with the first diode, the second battery string is connected in parallel with the second diode, the two ends of the first voltage recorder are respectively connected to the two ends of the first diode, and the two ends of the second voltage recorder are respectively connected to the two ends of the second diode.
[0008] The utility model provides a shadow shielding judgment device. It has the following beneficial effects: by connecting a diode and a battery in series and in parallel, and then connecting the two ends of a voltage recorder to the two ends of the diode respectively, the voltage recorder records the voltage drop at the two ends of the diode for a long time, and the long-term shadow shielding situation of the device installation location can be directly analyzed. Therefore, the long-term shadow shielding situation can be accurately understood. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings required for describing the prior art are briefly introduced below.
[0010] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;
[0011] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;
[0012] Description of the numbers in the figure:
[0013] 1. Battery string; 2. Diode; 3. Voltage recorder; 4. Resistor; 11. First battery string; 12. Second battery string; 21. First diode; 22. Second diode; 31. First voltage recorder; 32. Second voltage recorder. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.
[0015] Examples, such as Figure 1-2 As shown, a shadow occlusion judgment device includes a plurality of battery strings 1, a diode 2, a voltage recorder 3 and a resistor 4; each battery string 1 is composed of a plurality of solar cells connected in series to form a power generation circuit, the diode 2 is connected in parallel with the battery string 1, the positive electrode of the battery string 1 is connected to the negative electrode of the diode 2, and the negative electrode of the battery string 1 is connected to the positive electrode of the diode 2; the two ends of the voltage recorder 3 are respectively connected to the two ends of the diode 2 for monitoring the voltage at the two ends of the diode 2, and the two ends of the resistor 4 are respectively connected to the positive electrode and the negative electrode of the battery string 1.
[0016] In this embodiment, the battery string 1 includes a first battery string 11 and a second battery string 12, the diode 2 includes a first diode 21 and a second diode 22, the voltage recorder 3 includes a first voltage recorder 31 and a second voltage recorder 32, the first battery string 11 and the second battery string 12 are connected in series, the first battery string 11 is connected in parallel with the first diode 21, the second battery string 12 is connected in parallel with the second diode 22, the two ends of the first voltage recorder 31 are respectively connected to the two ends of the first diode 21, and the two ends of the second voltage recorder 32 are respectively connected to the two ends of the second diode 22.
[0017] Working principle:
[0018] When the battery string 1 is not blocked, the first battery string 11 and the second battery string 12 generate electricity normally, and the electricity generated by the first battery string 11 and the second battery string 12 is consumed by the resistor 4, the diode 2 is in a reverse cut-off state, and then the first voltage recorder 31 and the second voltage recorder 32 respectively monitor the voltage across the first diode 21 and the voltage across the second diode 22, and the obtained values are the voltages of the first battery string 11 and the second battery string 12, and the negative electrode voltages of the first diode 21 and the second diode 22 are higher than the positive electrode voltages.
[0019] When the first battery string 11 is blocked, the second battery string 12 generates electricity normally, and the first diode 21 is turned on. Therefore, the voltage across the first diode 21 monitored by the first voltage recorder 31 is the forward voltage drop of the diode, and the voltage at the positive electrode of the first diode 21 is higher than the voltage at the negative electrode. Similarly, when the second battery string 12 is blocked, the first battery string 11 generates electricity normally, and the second diode 22 is turned on. Therefore, the voltage across the second diode 22 monitored by the second voltage recorder 32 is the forward voltage drop of the diode, and the voltage at the positive electrode of the second diode 22 is higher than the voltage at the negative electrode.
[0020] Therefore, by long-term recording of the voltage drop across the diode 2 by the voltage recorder 3, the long-term shadowing condition of the device installation location can be directly analyzed, thereby accurately understanding the long-term shadowing condition.
[0021] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A shadow occlusion judgment device, characterized in that: The invention comprises a plurality of groups of battery strings (1), diodes (2), voltage recorders (3) and resistors (4); each group of the battery strings (1) is formed by a plurality of solar cells connected in series; the diodes (2) are connected in parallel with the battery strings (1); the positive electrode of the battery string (1) is connected to the negative electrode of the diode (2); the negative electrode of the battery string (1) is connected to the positive electrode of the diode (2); the two ends of the voltage recorder (3) are respectively connected to the two ends of the diode (2); and the two ends of the resistor (4) are respectively connected to the positive electrode and the negative electrode of the battery string (1).
2. A shadow occlusion judgment device according to claim 1, characterized in that: The battery string (1) comprises a first battery string (11) and a second battery string (12); the diode (2) comprises a first diode (21) and a second diode (22); the voltage recorder (3) comprises a first voltage recorder (31) and a second voltage recorder (32); the first battery string (11) and the second battery string (12) are connected in series; the first battery string (11) and the first diode (21) are connected in parallel; the second battery string (12) and the second diode (22) are connected in parallel; two ends of the first voltage recorder (31) are respectively connected to two ends of the first diode (21); and two ends of the second voltage recorder (32) are respectively connected to two ends of the second diode (22).