CN207070015U - A kind of solar cell panel assembly portable tester - Google Patents

Abstract

The utility model discloses a kind of solar cell panel assembly portable tester, including main frame, load end and MUT module under test；Described main frame includes CPU, it is connected on CPU by signal transacting and D/A converting circuit with MUT module under test, load end is connected with by amplifying circuit on described CPU, interactive connection has USB interface, information-storing device, ethernet communication interface and HMI user-machine interfaces on described CPU, main frame is connected with CPU, it is connected on described CPU through D/A converting circuit, signal processing circuit with sensor cluster, internal electric source is additionally provided with main frame.Solar cell panel assembly portable tester provided by the utility model, is designed for the purpose of cost-effective and be practical.The requirement for the outdoor study that is easy to carry, is adapted to can be reached, tester possesses certain intensity, property simple to operate and can real-time display test result.Tester has various defencive functions, functional reliability height.

Description

A portable tester for solar panel components

technical field

The utility model relates to a tester, in particular to a portable tester for solar panel components.

Background technique

With the increasing scale of distributed photovoltaic power plants, traditional power plant management methods are no longer applicable, and some potential hidden dangers have gradually attracted the attention of power plant owners, such as whether the components are in good condition, whether the power generation is sufficient, and whether the power generation efficiency is high. etc. within the normal range.

Whether the components on the user's site are running normally requires detection of temperature, irradiance, open circuit voltage, short circuit current and other data information of the components to judge. Therefore, a device that can detect whether the solar panel components are normal is needed.

Utility model content

In order to solve the above technical problems, the utility model provides a portable tester for solar cell panel components that is easy to carry, easy to measure, and can quickly determine whether the components are normal, and realizes the detection of the component working positions of distributed photovoltaic power plants.

The utility model is realized through the following technical solutions:

A portable tester for solar panel components, including a host, a load terminal and a component under test; the host includes a CPU, the CPU is connected to the component under test through a signal processing and digital-to-analog conversion circuit, and the CPU is connected to the component under test through an amplifying The circuit is connected with a load end, and the CPU is interactively connected with a USB interface, an information memory, an Ethernet communication interface and an HMI human-machine interface interface, and the host is connected to the CPU, and the CPU is connected through a digital-to-analog conversion circuit and a signal processing circuit. It is connected with the sensor component, and an internal power supply is also arranged in the host.

The sensor assembly includes an irradiance sensor and a temperature sensor; the CPU is respectively connected to the irradiance sensor and the temperature sensor via an A/D digital-to-analog conversion circuit and a signal processing circuit.

The host is also provided with a standard detection interface of the tested component, two sensor interfaces and a load terminal interface.

The CPU is an ARM processor.

The digital-to-analog conversion circuit includes A/D and D/A digital-to-analog conversion circuits.

The component under test, the load terminal and the sensor component are connected to the host through a connection cable, and the interface of the connection cable is a solar photovoltaic connector MC4.

The tested component includes a single component or a string component.

Compared with the prior art, the utility model has the following beneficial technical effects:

The utility model provides a portable tester for solar panel components, which is designed for the purpose of high cost performance and strong practicability. It can meet the requirements of being easy to carry and suitable for outdoor operations. The tester has a certain strength, is simple and convenient to operate and can display the test results in real time. The tester has various protection functions and has high working reliability.

Description of drawings

Fig. 1 is a structural block diagram of a portable tester for solar panel components provided by the utility model.

Detailed ways

The utility model will be further described in detail below in conjunction with specific embodiments, which are explanations of the utility model rather than limitations.

Referring to Fig. 1, a kind of solar cell panel module portable tester comprises host computer, load terminal and tested component; Described host computer comprises CPU, is connected with tested component by signal processing and digital-to-analog conversion circuit on CPU, described The CPU is connected to a load end through an amplification circuit, and the CPU is interactively connected with a USB interface, an information memory, an Ethernet communication interface, and an HMI interface. 1. The signal processing circuit is connected with the sensor component, and the host is also provided with an internal power supply.

The sensor assembly includes an irradiance sensor and a temperature sensor; the CPU is respectively connected to the irradiance sensor and the temperature sensor via an A/D digital-to-analog conversion circuit and a signal processing circuit.

The host is also provided with a standard detection interface of the tested component, two sensor interfaces and a load terminal interface.

The CPU is an ARM processor.

The digital-to-analog conversion circuit includes A/D and D/A digital-to-analog conversion circuits.

The component under test, the load terminal and the sensor component are connected to the host through a connection cable, and the interface of the connection cable is a solar photovoltaic connector MC4.

The tested component includes a single component or a string component.

Specifically, when the tester performs testing work, it needs to be connected with: the component under test, the irradiance sensor, the temperature sensor and the load box. The entire tester consists of a host, an irradiance sensor, a temperature sensor, and a connecting cable, and the connecting cable interface is a solar photovoltaic connector MC4. After the connection of the entire test system is completed, relevant data testing, collection and analysis can be carried out.

Specifically, the overall structure of the tester includes the external interface part of the tester and the internal structure of the mainframe of the tester.

External interface part of the tester:

1. Standard detection interface of the component under test

2. Sensor interface (2)

3. Ethernet communication interface

4.USB interface

5. HMI human-machine interface interface

6. Load port

The internal structure of the tester host:

1. CPU (ARM processor)

2. A/D, D/A digital-to-analog conversion circuit

3. Internal power supply

4. Information memory

5. Amplifying circuit

The tester needs to complete the storage comparison and analysis of the measured results of the tested components, and determine whether the tested components have abnormal phenomena and whether they are in normal use. The component under test (single component/string component) is connected to the tester through a standard interface. The tester is equipped with an irradiance sensor and a temperature sensor, which can measure the real-time temperature, irradiance, open circuit voltage, short-circuit current and other data of the component under test. information. When testing, it has its own internal power supply to power itself. The data measured by the sensor is transmitted to the CPU (ARM processor) through the internal A/D and D/A digital-to-analog conversion circuits of the tester. The tester itself has information memory. Records store the component under test data. Realize the host control system with CPU (ARM processor) as the core. Display data information through HMI man-machine interface. By comparing with the data in the standard information database, the actual conversion rate of the component under test and one of its loss rates can be obtained. There is a USB interface on the tester for program download (upload) transmission. The Ethernet communication interface is used to connect external computers and other equipment for information transmission. Constitute a complete set of information input and output system. The maximum test range of the tester is open circuit voltage 1000V and short circuit current 20A. The tester can give real-time test data of the radiation intensity, operating temperature, short-circuit current, open-circuit voltage, decay rate and conversion rate of the tested component. The tester automatically stores test results. You can view the relative I-V characteristic curve and decay rate curve of the battery component under test.

The utility model provides a portable tester for solar panel components, which is designed for the purpose of high cost performance and strong practicability. It can meet the requirements of being easy to carry and suitable for outdoor operations. The tester has a certain strength, is simple and convenient to operate and can display the test results in real time. The tester has various protection functions and has high working reliability.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (7)

1. a kind of solar cell panel assembly portable tester, it is characterised in that including main frame, load end and MUT module under test； Described main frame includes CPU, is connected on CPU by signal transacting and D/A converting circuit with MUT module under test, leads on described CPU Cross amplifying circuit and be connected with load end, interactive connection has USB interface, information-storing device, ethernet communication interface on described CPU With HMI user-machine interfaces, main frame is connected with CPU, through D/A converting circuit, signal processing circuit and sensing on described CPU Device assembly is connected, and internal electric source is additionally provided with main frame.

2. solar cell panel assembly portable tester according to claim 1, it is characterised in that described sensor Component includes irradiance sensor and temperature sensor；Through A/D D/A converting circuits, signal processing circuit point on described CPU It is not connected with irradiance sensor and temperature sensor.

3. solar cell panel assembly portable tester according to claim 1, it is characterised in that on described main frame It is additionally provided with MUT module under test standard detection interface, two sensor interfaces and load end interface.

4. solar cell panel assembly portable tester according to claim 1, it is characterised in that described CPU is Arm processor.

5. solar cell panel assembly portable tester according to claim 1, it is characterised in that described digital-to-analogue turns Changing circuit includes A/D and D/A D/A converting circuits.

6. solar cell panel assembly portable tester according to claim 1, it is characterised in that described tested group Part, load end and sensor cluster are connected by connection cables with main frame, and connection cables interface is photovoltaic connector MC4。

7. solar cell panel assembly portable tester according to claim 1, it is characterised in that described tested group Part includes single component or group string component.