CN202471853U - Outdoor mobile solar module PID power recovery test box - Google Patents

Abstract

The utility model relates to an outdoor mobile solar module PID power recovery test box, which includes a box body, which is divided into a component testing area and a component placement environment area, and the component testing area is installed with a high-voltage direct current power supply for providing high-voltage power supply for solar components , monitoring computer, outdoor IV curve tester, the monitoring computer is connected to the high-voltage DC power supply for communication, and the environment area where the components are placed is equipped with temperature heating devices, component placement racks, ventilation devices, deluge devices, lighting devices, temperature heating devices, ventilation devices, The deluge devices are respectively connected with the monitoring computer in communication. When the power of the solar module is restored, the solar module is placed in the environment area where the module is placed, and is separated from the module test area where the high-voltage DC power supply is placed, which not only ensures the safety of the high-voltage power supply required for the experiment, but also easily adjusts the environment in which the solar module is located .

Description

Outdoor mobile solar module PID power recovery test chamber

technical field

The utility model relates to an outdoor mobile solar module PID power recovery test box.

Background technique

PID (Potential Induced Degradation) is named after some domestic and foreign photovoltaic companies for the power attenuation phenomenon that occurs when solar modules are running in the system. When the power generation module is used in the system, due to the positive pressure or negative pressure of the solar module in the system, the charge accumulation on the surface of the module will cause power attenuation. In a short period of time, such as a few months or a year or two, there will be an abnormal and sharp drop in power. However, there is no standard or special device in the industry for the recovery of solar module power decay for this phenomenon. Solon company released its long-term research report on PID phenomenon "Potential Induced Degradation of solar cells and panels", which mainly explained the principle of crystalline silicon PID generation through experimental data, and carried out PID generation and recovery experiments.

When the power recovery is carried out in the existing laboratory, the recovery experiment is carried out by patchwork of various instruments. It takes a long time to prepare materials and wiring for one experiment; and one experiment can only carry out the power of no more than 5 solar modules. recovery, and occupy a large experimental space; since the experiment uses a voltage of 1000V to apply to the frame of the solar module, it needs a special space or arranges a person to be on duty, and the efficiency is low and the safety is poor.

Utility model content

The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, and provide an outdoor mobile solar module PID power recovery test box, which is convenient for power attenuation and recovery of solar modules outdoors.

The technical solution adopted by the utility model to solve the technical problems is: an outdoor mobile solar module PID power recovery test box, including a box body, which is divided into a component testing area and a component placement environment area. The component testing area A high-voltage DC power supply for providing high-voltage power to solar modules, a monitoring computer, and an outdoor IV curve tester are installed. The monitoring computer communicates with the high-voltage DC power supply. The environment area where the components are placed is equipped with temperature heating devices, component placement racks, and ventilation device, deluge device, lighting device, the temperature heating device, ventilation device, deluge device are respectively connected with the monitoring computer by communication.

Further, the component placement rack has at least one layer of placement plates, the placement plates are double-layer sealed structure, each layer of placement plates is respectively connected with the solution riser of the component placement rack, and the lower layer of the placement plate has Spray holes for spraying solutions to lower solar modules.

Further, the deluge device includes a water pump filter device, a conductive solution tank, and a conductive solution pipe. The water pump filter device is connected to the conductive solution pipe, and the conductive solution pipe is connected to the solution standpipe of the component placement rack. The conductive solution tank Located under the component shelf.

Further, when the solar module needs to be tested, the outdoor IV curve tester is connected with the solar module and the reference cell electrodes.

Further, a roller mechanism is provided at the bottom of the component placing frame. Facilitates the collection of problematic solar modules outdoors.

The beneficial effect of the utility model is that the component testing area is mainly used for power recovery of solar components and power testing of solar components. The component placement environment area is mainly used to provide an environment with suitable temperature and spray conductive solution on the surface of the solar component when the solar component is restored. When the solar module is performing power recovery, the solar module is placed in the environment area where the module is placed, and is separated from the module test area where the high-voltage DC power supply is placed, which not only ensures the safety of the high-voltage power supply required for the experiment, but also easily adjusts the environment in which the solar module is located. , The utility model is used to recover the power of batches of solar modules, with high efficiency and high safety factor. The utility model is suitable for single crystal, polycrystalline, back electrode and thin film components in the existing solar energy industry.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a structural representation of the utility model;

Among them: 1. High-voltage DC power supply, 2. Monitoring computer, 3. Outdoor IV curve tester, 4. Heating device, 5. Component placement rack, 6. Ventilation device, 7. Lighting device, 81. Water pump filter device, 82. Conductive solution tank, 83. Conductive solution.

Detailed ways

The utility model is described further in conjunction with accompanying drawing now. These drawings are simplified schematic diagrams only to illustrate the basic structure of the utility model in a schematic way, so they only show the configurations related to the utility model.

As shown in Figure 1, an outdoor mobile solar module PID power recovery test box includes a box body. The box body is divided into a component test area and a component placement environment area. The component test area is equipped with a high-voltage DC power supply 1, a monitoring computer 2, The outdoor IV curve tester 3, the monitoring computer 2 and the high-voltage direct current power supply 1 are connected in communication, and the component placement environment area is equipped with a temperature heating device 4, a component placement rack 5, a ventilation device 6, a rain shower device, a lighting device 7, and a temperature heating device 4 , the ventilation device 6 , and the deluge device are communicated with the monitoring computer 1 respectively. The high-voltage DC power supply 1 is used to provide high-voltage power supply to solar modules. The temperature heating device 4 is heated by heating resistance wire, the ventilation device 6 is air-conditioned and ventilated, and the lighting device 7 is illuminated by a lighting lamp.

The component placement frame 5 has multi-layer placement plates, and a single placement plate is a double-layer sealed structure. Each layer of placement plates is connected to the solution riser of the component placement frame 5 respectively. orifice. The deluge device comprises water pump filtering device 81, conductive solution tank 82, conductive solution pipe 83, and water pump filtering device 81 links to each other with conductive solution pipe 83, and conductive solution pipe 83 links to each other with the solution riser of component placement frame 5, and conductive solution tank 82 is positioned at Component placement shelf 5 below. The bottom of the component placement frame 5 is provided with a roller mechanism. The water pump filtering device 81 extracts the solution in the conductive solution tank 82 and sends it to the solution standpipe of the component placement frame 5 through the conductive solution pipe 83, and sends it to each layer of the placement plate through the solution standpipe, and passes through the spraying of the lower plate of the placement plate. The holes enable spraying of the solution.

The module testing area is mainly used for power recovery of solar modules and power testing of solar modules. The component placement environment area is mainly used to provide an environment with suitable temperature and spray conductive solution on the surface of the solar component when the solar component is restored.

When performing power attenuation recovery on solar modules, the positive and negative poles of the high-voltage DC power supply 1 are connected to the solar modules. Different types of solar modules have different access positions for the positive and negative poles. For example, for ordinary crystalline silicon modules, the positive pole of the high-voltage DC power supply is connected to the positive terminal of the module, and the negative pole is connected to the frame of the module. The high-voltage DC power supply communicates with the monitoring computer through GPIB (General-Purpose Interface Bus).

When the solar module needs to be tested, the outdoor IV curve tester is connected to the solar module and the reference cell electrode. The main test method is to place the solar module and the reference cell in the same plane on a sunny day, connect the positive and negative electrodes of the solar module to be tested to the corresponding ports of the outdoor IV curve tester 3, and then test. The test of the IV curve of the solar module is mainly used for the power test of the solar module before and after the power recovery, and is used to judge whether the solar module is restored.

When the solar module is performing power recovery, the solar module is placed in the environment area where the module is placed, and is separated from the module test area where the high-voltage DC power supply is placed, which not only ensures the safety of the high-voltage power supply required for the experiment, but also easily adjusts the environment in which the solar module is located. , The utility model is used to recover the power of batches of solar modules, with high efficiency and high safety factor. The utility model is suitable for single crystal, polycrystalline, back electrode and thin film components in the existing solar energy industry.

The utility model integrates power recovery and power test functions, and the size of the box is the size of a standard box-type truck. It can be installed on the truck to go to the solar power field for on-site recovery, avoiding the back and forth two-way transportation damage of solar components, reducing transportation costs, shortening the The power recovery cycle of the solar module is completed.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (5)

1. An outdoor mobile solar module PID power recovery test box is characterized in that: it comprises a box body, and the box body is divided into a component test area and a component placement environment area, and the described component test area is equipped with a device for providing high voltage to the solar component. The high-voltage direct current power supply of the power supply, the monitoring computer, the outdoor IV curve tester, the monitoring computer and the high-voltage direct current power supply are connected by communication, and the described component placement environment area is equipped with a temperature heating device, a component placement rack, a ventilation device, a rain device, and a lighting device , the temperature heating device, the ventilation device, and the deluge device are respectively connected with the monitoring computer by communication. 2. The outdoor mobile solar module PID power recovery test chamber according to claim 1, characterized in that: the component placement frame has at least one layer of placement boards, and the placement boards are double-layer sealed structures, each layer The placement plates are respectively connected with the solution risers of the component placement racks, and the lower plate of the placement plates has spray holes for spraying the solution to the lower solar modules. 3. The outdoor mobile solar module PID power recovery test chamber according to claim 2, characterized in that: the rain shower device includes a water pump filter device, a conductive solution tank, a conductive solution pipe, a water pump filter device and a conductive solution pipe connected, the conductive solution pipe is connected to the solution standpipe of the component placement rack, and the conductive solution tank is located under the component placement rack. 4. The outdoor mobile solar module PID power recovery test chamber according to claim 1, characterized in that: when the solar module needs to be tested, the outdoor IV curve tester is connected with the solar module and the reference cell electrodes. 5. The outdoor mobile solar module PID power recovery test chamber according to claim 1, characterized in that: the bottom of the module placement frame is provided with a roller mechanism.

Images