CN211239790U

CN211239790U - Photovoltaic conflux case monitoring facilities

Info

Publication number: CN211239790U
Application number: CN201922271290.4U
Authority: CN
Inventors: 周正华; 郑建锋; 张骏; 吴建祥
Original assignee: Zhejiang Huadian Wuxijiang Hydropower Co ltd
Current assignee: Zhejiang Huadian Wuxijiang Hydropower Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-08-11
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to a photovoltaic conflux case monitoring facilities, it belongs to the photovoltaic power generation field. The utility model discloses a measuring module, multichannel data acquisition module and communication module, measuring module include current sensor and voltage sensor, and measuring module is used for real-time supervision to converge the input current of the voltage of flow box and each way group cluster, and communication module is used for converging the data transmission between flow box, check out test set and the computer, and multichannel data acquisition module is responsible for gathering current, the voltage data that measuring module detected. The utility model relates to a rationally, reliable and stable, the collection precision is high, and real-time detection photovoltaic conflux case's voltage and each group cluster input current carry out real-time analysis contrast through communication module to the data input computer that equipment monitoring obtained and the data that conflux case self gathered.

Description

Photovoltaic conflux case monitoring facilities

Technical Field

The utility model relates to an equipment especially relates to a photovoltaic conflux case monitoring facilities, and it belongs to the photovoltaic power generation field.

Background

In recent years, the photovoltaic power generation in China has gained explosive development, in particular to a large-capacity grid-connected photovoltaic power station. At present, a centralized grid-connected strategy is generally adopted in a large photovoltaic power station, and a plurality of photovoltaic square matrixes are connected to a power grid through a combiner box, an inverter and a transformer. The function and structure of the combiner box are simplest, so in order to reduce cost, equipment manufacturers reduce some auxiliary functions of the combiner box on the premise of meeting the basic function and safety of the combiner box, such as the voltage and current measurement precision of the combiner box. However, the voltage and the current of the combiner box are the most effective data for evaluating the power generation efficiency of the photovoltaic power station, so that the current and the voltage of the photovoltaic combiner box are extremely important to detect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a reasonable in design, reliable and stable, it is high to gather the precision, and real-time detection photovoltaic conflux case's voltage and each group cluster input current carry out the photovoltaic conflux case monitoring facilities that real-time analysis contrasts with the data that conflux case self was gathered in the data input that equipment monitoring obtained through communication module.

The utility model provides a technical scheme that above-mentioned problem adopted is: this photovoltaic conflux case monitoring facilities, including measuring module, multichannel data acquisition module and communication module, measuring module is used for real-time supervision conflux case's voltage and each way input current of organizing the cluster, and communication module is used for conflux case, the data transmission between check out test set and the computer, and multichannel data acquisition module is responsible for gathering current, the voltage data that measuring module detected, its characterized in that: still include the USB interface, the voltage measurement interface, the current measurement interface, RJ45 net twine interface, the RS485 interface, the voltage measurement connecting wire, the current measurement connecting wire, the USB line, RJ45 net twine and RS485 line, voltage measurement connecting wire, current measurement connecting wire and USB line correspond the intercommunication with voltage measurement interface, current measurement interface and USB interface respectively, and RJ45 net twine interface is used for connecting the RJ45 net twine, and the RS485 interface is used for connecting the RS485 line.

Preferably, the measuring module of the present invention includes a current sensor and a voltage sensor.

Preferably, voltage sensor detects collection flow box voltage, and current sensor detects each square matrix input current.

As preferred, multichannel data acquisition module passes through data collection station and gathers collection flow box electric current, voltage information respectively.

As preferred, multichannel data acquisition module realizes sampling time point and collection flow box self detecting system's sampling time point unanimity through setting up synchronous clock.

Preferably, the communication module of the present invention comprises a USB cable, an RJ45 network cable, and an RS485 cable.

Compared with the prior art, the utility model, have following advantage and effect: 1. the whole structure is reasonable in design, stable and reliable, dynamic information of the combiner box and real-time dynamics of each photovoltaic square matrix are monitored in real time, and the problem that the measurement precision of the combiner box is not high is solved; 2. the voltage sensor and the current sensor in the measuring module are used for respectively measuring the voltage of the combiner box and the input current of each square matrix, and the device can support 8-path current input at most; the multi-path data acquisition module respectively acquires the voltage and current values measured by the measurement module; the communication module transmits the acquired data to a computer and can also communicate with the detection module of the combiner box.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of a monitoring device according to an embodiment of the present invention.

In the figure: the device comprises a measurement module C1, a multi-channel data acquisition module S1, a communication module T1, a current sensor d1, a voltage sensor d2, a switch button 1, a USB interface 2, a voltage measurement interface 3, a current measurement interface 4, an RJ45 network cable interface 5, an RS485 interface 6, a voltage measurement connecting wire 7, a current measurement connecting wire 8, a USB wire 9, an RJ45 network cable 10, an RS485 cable 11, a serial server 12, a computer 13, a data synchronization timing program 14 and a data analysis program 15.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples are given.

Referring to fig. 1 to 2, the photovoltaic combiner box monitoring device of the present embodiment includes a measurement module C1, a multi-path data acquisition module S1 and a communication module T1, the measurement module C1 includes a current sensor d1 and a voltage sensor d2, the measurement module C1 is configured to monitor the voltage of the combiner box and the input current of each path of group string in real time, the communication module is configured to transmit data among the combiner box, the detection device and the computer 13, and the multi-path data acquisition module S1 is responsible for acquiring current and voltage data detected by the measurement module C1.

In the present embodiment, the voltage sensor d2 detects the busbar voltage, and the current sensor d1 detects the input current of each matrix.

The multi-path data acquisition module S1 of this embodiment acquires the information of the current and the voltage of the combiner box through the data acquisition device.

The multi-path data acquisition module S1 of the present embodiment realizes that the sampling time point is consistent with the sampling time point of the detection system of the combiner box itself by setting a synchronous clock.

The communication module of the present embodiment includes a USB cable 9, an RJ45 network cable 10, and an RS485 cable 11.

In this embodiment, the communication module T1 is connected to the serial server 12 through the RS485 cable 11, and the serial server 12 is connected to the computer 13 through the RJ45 network cable 10; the computer 13 is provided with a data synchronization and synchronization program 14 and a data analysis program 15.

The voltage measurement connecting wire 7, the current measurement connecting wire 8 and the USB wire 9 of this embodiment correspond the intercommunication with voltage measurement interface 3, current measurement interface 4 and USB interface 2 respectively, and RJ45 net twine interface 5 is used for connecting the RJ45 net twine, and RS485 interface 6 is used for connecting the RS485 line.

This embodiment photovoltaic collection flow box monitoring facilities is connected with the collection flow box through special connecting wire, opens shift knob 1 after connecting, and equipment begins to detect the voltage current information of collection flow box and transmits for computer 13 through USB line 9, and computer 13 receives the data after and the data contrast that the collection flow box transmitted.

And will be apparent to those skilled in the art from the foregoing description.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a photovoltaic conflux case monitoring facilities, includes measuring module, multichannel data acquisition module and communication module, measuring module is used for real-time supervision conflux case's voltage and the input current of each way group cluster, and communication module is used for conflux case, data transmission between check out test set and the computer, and multichannel data acquisition module is responsible for gathering current, the voltage data that measuring module detected, its characterized in that: still include the USB interface, the voltage measurement interface, the current measurement interface, RJ45 net twine interface, the RS485 interface, the voltage measurement connecting wire, the current measurement connecting wire, the USB line, RJ45 net twine and RS485 line, voltage measurement connecting wire, current measurement connecting wire and USB line correspond the intercommunication with voltage measurement interface, current measurement interface and USB interface respectively, and RJ45 net twine interface is used for connecting the RJ45 net twine, and the RS485 interface is used for connecting the RS485 line.

2. The photovoltaic combiner box monitoring device of claim 1, wherein: the measurement module includes a current sensor and a voltage sensor.

3. The photovoltaic combiner box monitoring apparatus of claim 2, wherein: the voltage sensor detects the voltage of the combiner box, and the current sensor detects the input current of each square matrix.

4. The photovoltaic combiner box monitoring device of claim 1, wherein: and the multi-path data acquisition module is used for respectively acquiring current and voltage information of the combiner box through the data acquisition unit.

5. The photovoltaic combiner box monitoring apparatus of claims 1 or 4, wherein: the multi-path data acquisition module realizes the consistency of the sampling time point and the sampling time point of the detection system of the combiner box by setting a synchronous clock.

6. The photovoltaic combiner box monitoring device of claim 1, wherein: the communication module comprises a USB line, an RJ45 network cable and an RS485 line.