Solar cell and photovoltaic module integrated production line control system

Abstract

The invention discloses a solar cell and photovoltaic module integrated production line control system. The method comprises the following steps: S1, data collection; s2, calculating the storage margin in the storage system; s3, if N1 is larger than N0, the control center sends a control instruction to a conveying system, the conveying system conveys the battery pieces of the M1 specification in the battery piece sorting system to an assembly production system, and the conveying system conveys the battery pieces of the non-M1 specification into a warehousing system; and S4, if N1 is smaller than or equal to N0, the control center sends a control instruction to the conveying system, and the conveying system directly conveys the battery pieces in the battery piece sorting system into the warehousing system and conveys the battery pieces of the M2 specification in the warehousing system into the assembly production system. According to the invention, the prepared battery pieces with different specifications can be directly processed into photovoltaic modules, and the battery pieces on each photovoltaic module have the same specification.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic technology, and particularly relates to a control system for an integrated production line of solar cells and photovoltaic modules. Background Art

[0002] Solar energy is an inexhaustible and clean energy source. A solar photovoltaic power generation system that uses solar energy for power generation is a photovoltaic power source or a photovoltaic power station that directly converts solar energy into direct current or alternating current electrical energy. The most critical and core component in a solar photovoltaic power generation system is a photovoltaic module composed of solar cells. The solar cells produced by a solar cell production line may have different specifications. When manufacturing a photovoltaic module, multiple solar cells of the same specification and quality need to be connected in parallel or in series. Therefore, the solar cells produced on the solar cell production line cannot be directly processed into modules. In the prior art, it is necessary to first process the solar cells, then detect and classify the solar cells, and after packaging the cells of the same specification and quality, wait to be processed into photovoltaic modules. This manufacturing method not only has low efficiency, but also the solar cells cannot be immediately processed into modules after being manufactured, and the solar cells are prone to damage during the packaging, storage, and transportation processes. Summary of the Invention

[0003] The purpose of the present invention is to provide a control system for an integrated production line of solar cells and photovoltaic modules, which solves the problems raised in the above background art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: A control system for an integrated production line of solar cells and photovoltaic modules, including a cell sorting system, a module production system, a warehousing system, a conveying system, and a control center, comprising the following steps:

[0005] S1. Data collection, the control center collects the specification information of the solar cells in the cell sorting system, the module production system, and the warehousing system, as well as the storage quantity of each specification of solar cells in the warehousing system; at this time, the specification of the solar cells produced in the module production system is M1.

[0006] S2. Calculate the remaining storage quantity N1 in the warehousing system, and compare N1 with a preset value N0.

[0007] Where N1 = N - N2, N is the total storage quantity of solar cells that can be stored in the warehouse, and N2 is the total storage quantity of each specification of solar cells in the warehousing system.

[0008] S3. If N1 > N0, the control center sends a control instruction to the conveying system, and the conveying system conveys the M1 specification solar cells in the cell sorting system to the module production system, and conveys the non-M1 specification solar cells to the warehousing system.

[0009] S4. If N1 ≤ N0, the control center sends a control instruction to the conveying system. The conveying system directly conveys the solar cells in the solar cell sorting system to the warehousing system, and conveys the solar cells of M2 specification in the warehousing system to the module production system.

[0010] S5. When the solar cells of M2 specification in the warehousing system are consumed, convey the solar cells of M3 specification in the warehousing system to the module production system, and the conveying system directly conveys the solar cells in the solar cell sorting system to the warehousing system.

[0011] Based on the above solution and as a preferred solution of the above solution, the solar cells of M2 specification in step S4 and the solar cells of M3 specification in step S5 are the solar cells of the same specification with the largest quantity in the warehousing system at this time.

[0012] Based on the above solution and as a preferred solution of the above solution, the solar cell sorting system is arranged in the solar cell workshop, and the module production system is arranged in the module workshop.

[0013] Based on the above solution and as a preferred solution of the above solution, the solar cell workshop and the module workshop are connected by a connecting passage, and a nitrogen air shower system is arranged in the connecting passage.

[0014] Based on the above solution and as a preferred solution of the above solution, the conveying system includes a solar cell workshop conveying system and a module workshop conveying system, and an automatic conveying track is arranged in the connecting passage.

[0015] Based on the above solution and as a preferred solution of the above solution, the solar cell workshop conveying system and the module workshop conveying system are both provided with conveying tools, and the conveying tools are automatically docked with the automatic conveying track to load and unload materials.

[0016] Based on the above solution and as a preferred solution of the above solution, the conveying system includes turnover flower baskets, the solar cells are stored in the turnover flower baskets, and the conveying tools drive the turnover flower baskets to move.

[0017] Based on the above solution and as a preferred solution of the above solution, radio frequency identification technology is used to collect data in step S1.

[0018] Based on the above solution and as a preferred solution of the above solution, the solar cell sorting system divides the solar cells into different specifications according to the color, conversion efficiency or open circuit voltage of the solar cells.

[0019] Based on the above solution and as a preferred solution of the above solution, the module production system includes an adhesive printing device, a welding device and a lamination device.

[0020] The beneficial effects of the present invention are as follows: This invention can directly process the prepared battery wafers of various different specifications into photovoltaic modules, and the battery wafers on each photovoltaic module are of the same specification; There is a connection passage between the battery wafer workshop and the module workshop, and a nitrogen air shower system and an automatic conveying track are provided in the connection passage, which avoids the air in the module workshop from flowing into the battery wafer workshop and reducing the air quality in the battery wafer workshop. Detailed implementation manners

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientation or positional relationships shown in the embodiments, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] A control system for an integrated production line of solar cells and photovoltaic modules, including a battery wafer sorting system, a module production system, a warehousing system, a conveying system, and a control center, includes the following steps:

[0024] S1. Data collection, the control center collects the specification information of the battery wafers in the battery wafer sorting system, the module production system, and the warehousing system, as well as the storage quantity of each specification of battery wafers in the warehousing system; At this time, the specification of the battery wafers produced in the module production system is M1.

[0025] S2. Calculate the remaining storage quantity N1 in the warehousing system, and compare N1 with the preset value N0.

[0026] Where N1 = N - N2, N is the total storage quantity of battery wafers that can be stored in the warehouse, and N2 is the sum of the storage quantities of each specification of battery wafers in the warehousing system.

[0027] S3. If N1 > N0, the control center sends a control instruction to the conveying system, and the conveying system conveys the battery wafers of specification M1 in the battery wafer sorting system to the module production system, and conveys the battery wafers of non-M1 specification to the warehousing system.

[0028] S4. If N1 ≤ N0, the control center sends a control instruction to the conveying system. The conveying system directly conveys the solar cells in the solar cell sorting system to the storage system, and conveys the solar cells of M2 specification in the storage system to the component production system;

[0029] S5. When the solar cells of M2 specification in the storage system are consumed, the solar cells of M3 specification in the storage system are conveyed to the component production system, and the conveying system directly conveys the solar cells in the solar cell sorting system to the storage system.

[0030] In the case where the specifications of the produced solar cells are inconsistent, this invention uses the control center to read the information of the solar cells in each process, conveys the solar cells of the same specification as those being used in the component production system to the component production system, and conveys the solar cells of other specifications to the storage system. Before the storage system is full, the component production system is reconfigured, achieving the goal of directly processing the prepared solar cells into components, eliminating the steps of packaging the solar cells and then unpacking them for component production, and improving the processing efficiency of the components.

[0031] The solar cells of M2 specification in step S4 and the solar cells of M3 specification in step S5 are the solar cells of the same specification with the largest quantity in the storage system at this time. Prioritizing the conveyance of the solar cells of the same specification with the largest quantity in the storage system to the component production system reduces the frequency of reconfiguration of the component production system. Reconfiguration means replacing the solar cells being processed in the component production system with solar cells of other specifications.

[0032] It should be noted that the solar cells of the same specification referred to in this invention are solar cells with performance parameters within a certain range, not solar cells with exactly equal or identical performance parameters.

[0033] To ensure continuous production of the entire integrated production line without interruption, the consumption of solar cells by the component production system is greater than the production of solar cells.

[0034] The solar cell sorting system is located in the solar cell workshop, the component production system is located in the component workshop. The solar cell workshop and the component workshop are connected by a connection passage. A nitrogen air shower system is provided in the connection passage. The requirement for air quality in the solar cell workshop is higher than that in the component workshop. By blowing nitrogen into the connection passage to reduce the amount of air circulation between the two workshops, it is possible to prevent too much air from the component workshop from flowing into the solar cell workshop and thus reduce the air quality in the solar cell workshop. Moreover, nitrogen is an inert gas, and its circulation into the solar cell workshop or the component workshop will not reduce the air quality.

[0035] The conveying system includes a solar cell workshop conveying system and a component workshop conveying system. An automatic conveying track is provided in the connection passage to further prevent air circulation between the solar cell workshop and the component workshop.

[0036] Both the conveying system in the cell workshop and the conveying system in the component workshop are equipped with conveying tools, which are automatically docked with the automatic conveying track for loading and unloading materials. The conveying tool can be an AGV or a track conveyor.

[0037] The conveying system includes turnover baskets, and the cells are stored in the turnover baskets. The conveying tool drives the turnover baskets to move.

[0038] In step S1, radio frequency identification technology is used to collect data.

[0039] The cell sorting system sorts the cells into different specifications according to the color, conversion efficiency or open circuit voltage of the cells.

[0040] The component production system includes an adhesive printing device, a welding device and a lamination device.

[0041] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control system for an integrated production line of solar cells and photovoltaic modules, characterized in that: It includes a solar cell sorting system, a module production system, a storage system, a conveying system and a control center, and comprises the following steps: S1. Data collection: The control center collects the specification information of the solar cells in the solar cell sorting system, the module production system and the storage system, as well as the storage quantity of the solar cells of each specification in the storage system. At this time, the specification of the solar cells produced in the module production system is M1; S2. Calculate the remaining storage quantity N1 in the storage system, and compare N1 with the preset value N0; Where N1 = N - N2, N is the total storage quantity of solar cells that can be stored in the warehouse, and N2 is the total storage quantity of solar cells of each specification in the storage system; S3. If N1 > N0, the control center sends a control instruction to the conveying system, and the conveying system conveys the solar cells of specification M1 in the solar cell sorting system to the module production system, and conveys the solar cells of non-M1 specification to the storage system; S4. If N1 ≤ N0, the control center sends a control instruction to the conveying system, and the conveying system directly conveys the solar cells in the solar cell sorting system to the storage system, and conveys the solar cells of specification M2 in the storage system to the module production system; S5. When the solar cells of specification M2 in the storage system are consumed, convey the solar cells of specification M3 in the storage system to the module production system, and the conveying system directly conveys the solar cells in the solar cell sorting system to the storage system.

2. The control system of an integrated production line for solar cells and photovoltaic modules according to claim 1, characterized in that: The solar cells of specification M2 in step S4 and the solar cells of specification M3 in step S5 are the solar cells of the same specification with the largest quantity in the storage system at this time.

3. The control system of an integrated production line for solar cells and photovoltaic modules according to claim 1, characterized in that: The solar cell sorting system is arranged in the solar cell workshop, and the module production system is arranged in the module workshop.

4. The control system of an integrated production line for solar cells and photovoltaic modules according to claim 3, wherein: The solar cell workshop and the module workshop are connected by a connection passage, and a nitrogen air shower system is arranged in the connection passage.

5. The control system of an integrated production line for solar cells and photovoltaic modules according to claim 4, characterized in that: The conveying system includes a solar cell workshop conveying system and a module workshop conveying system, and an automatic conveying track is arranged in the connection passage.

6. The control system of an integrated production line for a solar cell and a photovoltaic module according to claim 5, characterized in that: The solar cell workshop conveying system and the module workshop conveying system are both provided with conveying tools, and the conveying tools are automatically docked with the automatic conveying track to load and unload materials.

7. The control system of an integrated production line for solar cells and photovoltaic modules according to claim 6, wherein: The conveying system includes turnover baskets, the solar cells are stored in the turnover baskets, and the conveying tools drive the turnover baskets to move.

8. The control system of an integrated production line for solar cells and photovoltaic modules according to claim 1, wherein: In step S1, radio frequency identification technology is used to collect data.

9. The control system for an integrated production line of solar cells and photovoltaic modules according to claim 1, characterized in that: The solar cell sorting system sorts the solar cells into different specifications according to the color, conversion efficiency or open circuit voltage of the solar cells.

10. A control system for an integrated production line of a solar cell and a photovoltaic module according to claim 1, characterized in that: The module production system includes a glue printing device, a welding device and a lamination device.