CN205178986U - Photovoltaic power plant subassembly I -V capability test auxiliary platform - Google Patents

Abstract

The utility model relates to a photovoltaic power plant subassembly I -V capability test auxiliary platform can freely adjust irradiation kilsyth basalt inclination and height to it in order to carry out data transmission, realizes the synchronous sampling of data such as I -V performance data, irradiance and backplate temperature and storage and can select the problem subassembly on line automatically to establish two -way wireless communication with the I -V tester, before testing, only need to adjust irradiation kilsyth basalt tray member for its inclination photovoltaic group cluster on -the -spot with the test arranges that the inclination is the same, just can adapt to that the photovoltaic module of difference arranges the inclination in the different power stations. This scheme has also designed the removable support chassis and adjustable, quick detachable bracket component that adapt to common topography for equipment wholly can conveniently shift and carry.

Description

An auxiliary platform for I-V performance testing of photovoltaic power station components

technical field

The utility model relates to an auxiliary test platform used in the I-V performance test of a solar photovoltaic power station, which can freely adjust the inclination and height of the irradiance meter, and establish two-way wireless communication with the I-V tester for data transmission, so as to realize I-V performance data, Synchronous collection and storage of data such as irradiance and backplane temperature, and automatic selection of problem components online.

Background technique

At present, in the I-V performance test of solar photovoltaic power station components, although the irradiance measuring instrument can be designed to be relatively light, it still needs to measure the time and irradiance through the limited length data line and the performance tester host during the test process. Data communication, there are many inconveniences in operation. Especially when testing the I-V performance of photovoltaic modules, due to the large number and wide distribution of power plant strings, it is necessary to manually place the irradiance meter on a different string every time the test location is transferred, which is not convenient. , there are also cases where the irradiance meter is not easy to place in some cases. In addition, when testers frequently walk through the photovoltaic string array, they are also prone to collisions with components or supports during the placement of equipment, which may cause injuries. During data analysis, it is necessary to manually transfer the data to the computer and find problematic components in a large amount of data, which is a heavy workload.

The introduction of wireless communication technology into the testing of photovoltaic power plants can provide testers with greater freedom of action and eliminate unnecessary repetitive work. With the addition of a data acquisition system with data preprocessing functions, testers can It saves the time of processing a large amount of data, improves work efficiency, and the cost is not high, so it has good application value.

Utility model content

In order to improve the efficiency of photovoltaic power plant performance testing work, the utility model patent provides an I-V performance testing platform with adjustable brackets and wireless communication modules. The platform can make the staff do not need to re-arrange and connect the irradiance meter when changing the test position when performing the I-V test of the photovoltaic power station, and can fix the equipment designed by the utility model at a selected position , the irradiance and temperature data are automatically measured by the independent data acquisition system, and transmitted to the I-V tester host through the wireless communication module. After each I-V test is completed, the I-V tester host will feed back the results to the independent data acquisition system with embedded programs , when all the tests are completed, the independent data acquisition system counts the power performance of each test component and forms a chart. The data can be received wirelessly by the computer terminal, and the problematic components can be found directly according to the diagram. Before the test, it is only necessary to adjust the tray part of the irradiance meter so that its inclination is the same as that of the photovoltaic string arrangement at the test site, so that it can adapt to different photovoltaic module arrangement inclinations in different power stations. This solution also designs a mobile support chassis and adjustable and easy-to-detach support components that adapt to common terrains, so that the overall equipment can be easily transferred and carried.

An auxiliary platform for I-V performance testing of photovoltaic power plant components, said auxiliary platform for I-V performance testing of photovoltaic power plant components includes an irradiance meter, an irradiance measurement bracket with adjustable inclination, a mobile chassis, and an independent data wireless communication function. Data acquisition module;

The irradiance measurement bracket with adjustable inclination includes a tray, an inclination adjustment component and a support rod;

The irradiance meter is connected with an independent data acquisition module with a data wireless communication function through a data line.

Preferably, the supporting rods in the auxiliary platform for I-V performance testing of photovoltaic power plant components are retractable structures.

Preferably, the shape of the tray in the auxiliary platform for I-V performance testing of photovoltaic power plant components is square, and the corners are rounded. The front of the tray has threaded holes for fixing the irradiance meter, and the back has holes for adjusting the inclination angle. between the threaded holes for fixing.

Preferably, the tray and the inclination adjustment part in the photovoltaic power plant module I-V performance test auxiliary platform can rotate from 0° to 90° in a plane perpendicular to the ground, and the inclination adjustment part is equipped with a scale.

Preferably, the pallet inclination adjustment part in the photovoltaic power plant module I-V performance test auxiliary platform is connected with the telescopic support and between the telescopic support and the mobile chassis through threaded fasteners, and the support rod It is a two-stage retractable structure.

Preferably, the mobile chassis in the auxiliary platform for I-V performance testing of photovoltaic power plant components is a triangular design, the three corners are rounded, and detachable universal rollers are arranged at the three corners.

Preferably, the irradiance meter in the photovoltaic power plant module I-V performance test auxiliary platform is a high-precision meteorological irradiance meter.

Preferably, the photovoltaic power plant component I-V performance test auxiliary platform in the photovoltaic power plant component I-V performance test auxiliary platform also includes an I-V tester host, a photovoltaic component and its ambient temperature sensor, and the photovoltaic power plant component I-V performance test. The I-V tester host is connected to the irradiance meter and the ambient temperature sensor through wired communication.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is a structural diagram of the utility model test auxiliary platform.

Fig. 2 is a schematic front view of the irradiance meter tray in the utility model.

Fig. 3 is a structural schematic diagram of the inclination adjustment component in the present invention.

Fig. 4 is a schematic diagram of the front structure of the mobile chassis in the utility model.

Fig. 5 is a schematic diagram of the working principle of the utility model.

Explanation of symbols: 1. Irradiance measurement bracket with adjustable inclination; 11. Tray; 12. Threaded hole; 13. Inclination adjustment component; 14. Scale scale; 2. Support rod; Data acquisition module; 4. Mobile chassis; 5. Detachable universal roller; 6. Irradiance meter.

The meanings of the letters or Roman numerals in Figure 5 are as follows:

Ⅰ A new test auxiliary platform designed (installed with an irradiance meter and an independent data acquisition system);

Ⅱ Photovoltaic modules (strings);

ⅢI-V performance tester;

ⅣComputer terminal;

The data communication (temperature data) between the temperature of the backplane of the component and the ambient temperature sensor and the independent data acquisition system adopts wired transmission;

The data communication (irradiance data) between the solar irradiance meter and the independent data acquisition system adopts wired transmission;

C The data communication (temperature and irradiance data) between the independent data acquisition system and the I-V performance tester adopts wireless transmission;

The component I-V characteristic data communication (including component power, working voltage, working current, etc.) collected by the DI-V performance tester adopts the conventional wiring method;

The data communication (final data of the test) fed back by the EI-V tester to the independent data acquisition system adopts wireless transmission;

F The data communication between the independent data acquisition system and the computer terminal (the final data fed back by the I-V tester is sorted out and output) adopts wireless transmission.

detailed description

The utility model is further described in detail below in conjunction with the examples, the following examples are explanations of the utility model and the utility model is not limited to the following examples.

Example

As shown in Figures 1 to 5, the utility model is mainly composed of a solar irradiance meter 6, a temperature acquisition module data acquisition and a communicator A, an independent data storage module 3 and a wireless communication module, a small amount of data communication lines, and a dip angle The adjustable irradiance measurement bracket 1, the tray 11, the telescopic support rod 2 and the movable chassis 4 are composed of:

(1) The shape of the irradiance meter tray 11 is rectangular (or square), and the four corners are rounded. There are three threaded holes 12 for fixing the irradiance meter on the front, and there are holes for fixing between the inclination adjustment parts on the back. Threaded holes all around. The installed irradiance meter adopts a high-precision meteorological irradiance meter, which is connected to an independent data acquisition module through a data cable. After the irradiance data is collected, it is synchronously sent to the I-V tester host through a wireless communication module.

(2) The inclination angle adjustment part 13 of the irradiance meter tray can ensure that the tray can rotate from 0° to 90° in a plane perpendicular to the ground, so that its inclination angle is the same as that of the photovoltaic string or module. This part is equipped with a graduated scale 14, which rotates synchronously with the pallet during the process of changing the inclination. When changing the inclination, you need to loosen the locking knob. There is a fixed pointer at the lower part of the knob. When the tray rotates to the same angle as the measured component, tighten the locking knob. When the pallet is horizontal, the pointer points to the 0° engraved line on the scale. When the pallet rotates, because the scale rotates synchronously with the pallet, the current inclination angle of the pallet can be known from the scale on it.

(3) The pallet inclination adjustment part is connected with the telescopic support, and the telescopic support and the chassis are connected by threaded fasteners, which is convenient for disassembly and installation. The telescopic bracket is designed in two sections, so that the irradiance meter can be lifted up to 2m.

(4) The movable chassis 14 is designed as a triangle, and the three corners are rounded, and a detachable universal roller 5 is arranged near the three corners to facilitate movement. The center of the chassis is a circular groove and a buckle interface that fixes the bottom end of the telescopic bracket. There are two semi-circular grooves on both sides of the circular groove to fix the data acquisition and communicator.

(5) The wireless communication module and the independent data acquisition module use existing technology, which can ensure the rapid transmission and accurate recording of data signals in areas with GPRS signals. The wireless communication module and the independent data acquisition module are designed as a whole (called data acquisition and communicator), packaged in a waterproof, dust-proof, and ventilated shell, and equipped with a liquid crystal display (used to display irradiance and temperature data and communication) and some necessary switches and indicators, powered by rechargeable batteries, eliminating the need for power wiring. The data acquisition and communicator is screwed and fixed on the chassis through the screw. The screw is screwed into the two threaded holes in the lower part of the data acquisition and communicator casing from both ends of the semicircular groove of the chassis. There is a round plastic cap on the lower part of the screw. Secure the instrument by snapping the edge of the semicircular slot.

(6) The component backplane temperature and ambient temperature sensors are directly connected to the communication interface of the independent data acquisition module through the communication line. After the data is collected, it is sent to the I-V tester host synchronously through the wireless communication module, and the data is stored in the independent data acquisition module at the same time.

(7) The independent data acquisition module can receive the I-V performance test result data fed back by the host computer of the I-V tester, and store correspondingly with the irradiance and temperature data according to time points. These data can be sent to the computer terminal through the wireless communication module or through the data line.

(8) When using the auxiliary platform, the tester can choose to carry a portable computer terminal to obtain the final test data directly from the host of the I-V tester through wireless or wired communication, or choose to use the independent data acquisition module through wireless after the test is completed. Or wired communication to send the test result data to the computer terminal. In addition, the independent data acquisition module can be embedded with a data processing program to automatically organize the measured data into charts to facilitate the selection of problem components.

In addition, it should be noted that the specific embodiments described in this specification may be different in terms of parts, shapes and names of components. All equivalent or simple changes made according to the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the definition defined in the claims scope, all should belong to the protection scope of the present utility model.

Claims (8)

1. a photovoltaic power station component I-V performance test assistance platform, is characterized in that:

Described photovoltaic power station component I-V performance test assistance platform comprises irradiance table, tilt adjustable whole irradiance measurement support, mobile platform and the individual data acquisition module with data wireless communication function;

The whole irradiance measurement support of described tilt adjustable comprises pallet, tilt adjustment parts and support bar;

Described irradiance table is connected with the individual data acquisition module with data wireless communication function by data wire.

2. photovoltaic power station component I-V performance test assistance platform according to claim 1, is characterized in that: described support bar is Collapsible structure.

3. photovoltaic power station component I-V performance test assistance platform according to claim 1, it is characterized in that: described tray outline is square, fillet process is done in each corner, there is the screwed hole for fixing irradiance table in the front of pallet, and there is the screwed hole supplying to be fixed between tilt adjustment parts at the back side.

4. photovoltaic power station component I-V performance test assistance platform according to claim 1, it is characterized in that: described pallet and tilt adjustment parts can do the rotation of 0 ° to 90 ° in plane perpendicular to the ground, and described tilt adjustment parts are furnished with graduated scale.

5. photovoltaic power station component I-V performance test assistance platform according to claim 1, it is characterized in that: described pallet tilt adjustment parts be all be connected by threaded fastener between telescoping shoring column and between telescoping shoring column with mobile platform, described support bar is two-part Collapsible structure.

6. photovoltaic power station component I-V performance test assistance platform according to claim 1, it is characterized in that: described mobile platform is triangular design, three drift angles do fillet process, arrange detachable universal rolling wheel at three drift angle places.

7. photovoltaic power station component I-V performance test assistance platform according to claim 1, is characterized in that: described irradiance table is high-precision meteorological irradiance table.

8. photovoltaic power station component I-V performance test assistance platform according to claim 1, it is characterized in that: described photovoltaic power station component I-V performance test assistance platform also comprises I-V tester main frame, photovoltaic module and environment temperature sensor thereof, and the I-V tester main frame in described photovoltaic power station component I-V performance test is connected by wire communication with between irradiance table and environment temperature sensor.