CN221058265U - Fault positioning device and photovoltaic system - Google Patents
Fault positioning device and photovoltaic system Download PDFInfo
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- CN221058265U CN221058265U CN202322590026.3U CN202322590026U CN221058265U CN 221058265 U CN221058265 U CN 221058265U CN 202322590026 U CN202322590026 U CN 202322590026U CN 221058265 U CN221058265 U CN 221058265U
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Abstract
The utility model belongs to the technical field of photovoltaic equipment, and particularly relates to a fault positioning device and a photovoltaic system, wherein the fault positioning device comprises: a plurality of shut-down components and fault alarm modules; when a certain shutdown component breaks down, the shutdown component periodically sends out a fault signal, and a fault alarm module alarms when approaching to the shutdown component; when any shutdown component works normally, the shutdown component periodically sends out a normal working signal, and the fault alarm module indicates that the fault alarm module approaches to the shutdown component; according to the intelligent photovoltaic module fault detection device, the switch-off assembly and the fault alarm module are arranged, so that after the switch-off assembly breaks down, the switch-off assembly sends out wireless fault signals, the fault alarm module is close to the intelligent photovoltaic assemblies one by one to detect, the state is indicated through the corresponding indicator lamp and the buzzer, the intelligent photovoltaic assemblies with faults can be conveniently and quickly found, and maintenance and replacement are convenient.
Description
Technical Field
The utility model belongs to the technical field of photovoltaic equipment, and particularly relates to a fault positioning device and a photovoltaic system.
Background
At present, a photovoltaic system is generally formed by connecting a plurality of photovoltaic modules in series to form a group string, and then connecting the group string into an inverter to realize direct current to alternating current conversion and grid connection. Because of the dangerous direct current high voltage formed by the series connection of photovoltaic modules, the photovoltaic system requires an arc protection of the inverter, i.e. the operation of the inverter should be immediately shut down when an arc is detected. However, no matter whether the inverter operates or not, the direct current cable after the photovoltaic modules are connected in series can output dangerous high-voltage power. Therefore, in order to eliminate the safety risk brought by high voltage electricity, it is necessary to select an intelligent component integrating the function of the shutoff device, and the output of each intelligent component is connected in series and then connected with the inverter, so that the shutoff device of the intelligent component can be used to shut down the voltage output of each photovoltaic component (the on-off condition of the shutoff device of the component is controlled by the transmitter), and the voltage on the direct current cable is reduced to a smaller value.
When the shutoff ware in the intelligent subassembly that adopts one-way communication breaks down, can't upload fault information, the unable location trouble intelligent subassembly position of sender has a plurality of intelligent subassemblies in photovoltaic power plant, because can't fix a position concrete trouble intelligent subassembly, is unfavorable for the maintenance and the change of intelligent subassembly.
Therefore, there is a need to develop a new fault location device and a photovoltaic system to solve the above problems.
Disclosure of utility model
The utility model aims to provide a fault positioning device and a photovoltaic system.
In order to solve the above technical problems, the present utility model provides a fault locating device, which includes: a plurality of shut-down components and fault alarm modules; when one of the shut-off components fails, the shut-off component sends out a failure signal until the failure alarm module alarms after receiving the complete failure signal.
Further, when any of the shutdown components works normally, the shutdown component sends out a normal working signal, and the fault alarm module indicates after receiving the complete normal working signal.
Further, each of the shutdown components is respectively arranged on the back side of the corresponding intelligent photovoltaic component, and each of the shutdown components is respectively electrically connected with the corresponding intelligent photovoltaic component; the shut-off assembly includes: the system comprises a first MCU controller and a shutoff switch electrically connected with the first MCU controller; the shutoff switch is connected into a power line between the intelligent photovoltaic module and the inverter; the first MUC controller controls the on-off of the switch of the shutoff device to control the on-off of the intelligent photovoltaic module and the inverter.
Further, the shut down assembly further comprises: the fault detection unit is electrically connected with the first MCU controller; the first MCU controller is suitable for detecting whether the switch of the switch-off device is in fault or not through the fault detection unit, and periodically sends out fault signals when the switch-off device is in fault, or periodically sends out normal working signals when the switch-off device is in normal working.
Further, the fault detection unit includes: an optocoupler connected to the shutoff switch; the first MCU controller is suitable for detecting a shutoff switch through light coupling.
Further, the shut down assembly further comprises: the wireless transmitting unit is electrically connected with the first MCU controller; the first MCU controller is suitable for wirelessly transmitting a fault signal or a normal working signal to a fault alarm module close to the intelligent photovoltaic module through the wireless transmitting unit.
Further, the fault alarm module includes: the second MCU controller and the wireless receiving unit are electrically connected with the second MCU controller; the second MCU controller is suitable for receiving fault signals or normal working signals through the wireless receiving unit.
Further, the fault alarm module further includes: a signal filtering circuit; the second MUC controller is suitable for obtaining a fault signal or a normal working signal received by the wireless receiving unit through the signal filtering circuit so as to filter an interference signal.
Further, the fault alarm module includes: the fault indicator lamp, the normal indicator lamp and the buzzer are electrically connected with the second MCU controller; the second MCU controller is suitable for emitting indicator lights with different colors through the fault indicator lights and the normal indicator lights so as to respectively indicate fault signals and normal working signals; and after receiving the complete fault signal, the second MCU controller is suitable for alarming through a buzzer.
In another aspect, the present utility model provides a photovoltaic system comprising: the fault locating device and the intelligent photovoltaic modules are as described above; the fault locating device is electrically connected with each intelligent photovoltaic module.
The intelligent photovoltaic module has the beneficial effects that the wireless fault signal can be sent out by the shutdown assembly after the shutdown assembly breaks down by arranging the shutdown assembly and the fault alarm module, the fault alarm module detects the intelligent photovoltaic assemblies one by one, the state is indicated by the corresponding indicator lamp and the buzzer, the intelligent photovoltaic assemblies with faults can be conveniently and rapidly found, and the intelligent photovoltaic assemblies with faults are convenient to maintain and replace.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is an electrical diagram of each intelligent photovoltaic module, each shutdown module, and an inverter;
FIG. 2 is a block diagram of a fault locating device of the present utility model;
FIG. 3 is a circuit diagram of the shut down assembly of the present utility model;
fig. 4 is a circuit diagram of a fault alarm module of the present utility model.
In the figure:
1. A shut-off assembly; 2. a fault alarm module; 3. an intelligent photovoltaic module.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment 1, in this embodiment, as shown in fig. 1 to 4, this embodiment provides a fault locating device, which includes: a plurality of shutdown assemblies 1 and fault alarm modules 2; when one of the shutdown components 1 fails, the shutdown component 1 sends out a failure signal until the failure alarm module 2 alarms after receiving the complete failure signal.
In this embodiment, when any of the shutdown modules 1 works normally, the shutdown module 1 sends out a normal working signal, and the fault alarm module 2 indicates after receiving the complete normal working signal.
In this embodiment, each of the shutdown modules 1 is disposed on the back side of the corresponding intelligent photovoltaic module 3, and each of the shutdown modules 1 is electrically connected to the corresponding intelligent photovoltaic module 3.
In this embodiment, because turn-off assembly 1 and fault alarm module 2 components of a whole that can function independently set up, turn-off assembly 1 sets up the dorsal part at intelligent photovoltaic module 3, intelligent photovoltaic module 3 can play the effect of protection turn-off assembly 1, and fault alarm module 2 detects intelligent photovoltaic module 3 one by one, when arbitrary turn-off assembly 1 breaks down, fault alarm module 2 just can carry out real-time alarm, only need a fault alarm module 2 just can detect every turn-off assembly 1, intelligent photovoltaic module 3, play the effect of location trouble turn-off assembly 1, the intelligent photovoltaic module 3 of trouble, can find out the turn-off assembly 1 that has the trouble fast, convenient maintenance and change.
In this embodiment, through setting up shutoff subassembly 1 and trouble alarm module 2, can turn off the subassembly 1 and break down the back that the subassembly 1 breaks down, the trouble alarm module 2 detects intelligent photovoltaic module 3 one by one, instructs the trouble through corresponding pilot lamp and bee calling organ, is convenient for find intelligent photovoltaic module 3 that breaks down fast, convenient maintenance and change.
In this embodiment, the shut down assembly 1 comprises: the system comprises a first MCU controller and a shutoff switch electrically connected with the first MCU controller; the shutoff switch is connected into a power line between the intelligent photovoltaic module 3 and the inverter; the first MUC controller controls the on-off of the switch of the shutoff device to control the on-off of the intelligent photovoltaic module 3 and the inverter.
In this embodiment, the first MCU controller plays a role in automatically controlling on-off of the intelligent photovoltaic module 3.
In this embodiment, the shutdown assembly 1 further includes: the fault detection unit is electrically connected with the first MCU controller; the first MCU controller is suitable for detecting whether the switch of the switch-off device is in fault or not through the fault detection unit, and periodically sends out fault signals when the switch-off device is in fault, or periodically sends out normal working signals when the switch-off device is in normal working.
In this embodiment, the fault detection unit includes: an optocoupler connected to the shutoff switch; the first MCU controller is suitable for detecting a shutoff switch through light coupling.
In this embodiment, the first MCU controller controls the turn-off switch to be turned on, and the turn-off switch is turned on, the input voltage is approximately equal to the output voltage, the optocoupler is turned on, the optocoupler outputs a high level, and the first MCU controller detects the optocoupler outputs a high level, so as to determine that the turn-off switch works normally; the first MCU controller controls the turn-off switch to be turned on, the turn-off switch is not turned on, the optocoupler outputs a low level, the first MCU controller does not detect a high level signal, and the first MUC controller outputs a fault signal.
In this embodiment, the shutdown assembly 1 further includes: the wireless transmitting unit is electrically connected with the first MCU controller; the first MCU controller is suitable for wirelessly transmitting a fault signal or a normal working signal to the fault alarm module 2 close to the intelligent photovoltaic module 3 through the wireless transmitting unit.
In this embodiment, the fault alarm module 2 includes: the second MCU controller and the wireless receiving unit are electrically connected with the second MCU controller; the second MCU controller is suitable for receiving fault signals or normal working signals through the wireless receiving unit.
In this embodiment, the fault alarm module 2 further includes: a signal filtering circuit; the second MUC controller is suitable for obtaining a fault signal or a normal working signal received by the wireless receiving unit through the signal filtering circuit so as to filter an interference signal.
In this embodiment, the fault alarm module 2 includes: the fault indicator lamp, the normal indicator lamp and the buzzer are electrically connected with the second MCU controller; the second MCU controller is suitable for emitting indicator lights with different colors through the fault indicator lights and the normal indicator lights so as to respectively indicate fault signals and normal working signals; and after receiving the complete fault signal, the second MCU controller is suitable for alarming through a buzzer.
In this embodiment, in order to avoid interference of other wireless signals to the second MUC controller, the wireless signal sent by the first MCU controller performs signal transmission according to the morse code, and after the first MCU controller detects the failure of the switch of the shutoff device, the first MCU controller periodically sends "ERROR" according to the morse code, and after the second MUC controller receives the "ERROR" of a complete character, the fault indicator lamp (red lamp) is turned on and the buzzer is driven to alarm; if the shutoff switch has no fault, the first MCU controller periodically sends OK according to the Morse code, and the second MUC controller lights a normal indicator lamp (green light) after receiving OK of a complete character.
In this embodiment, no matter the photovoltaic system of the household, the industrial and commercial photovoltaic system or the photovoltaic system of the large-scale ground power station, the fault shutdown assembly 1 can be rapidly positioned by the fault alarm module 2, so that the maintenance and replacement time of the shutdown assembly 1 is greatly reduced, only one fault alarm module 2 is needed for one project, and the whole detection cost is reduced.
In this embodiment, the fault alarm module 2 is installed on the detection box, so as to be attached to the corresponding intelligent photovoltaic module 3 in sequence to detect whether the intelligent photovoltaic module works normally, and can timely process when the fault of the shutdown module 1 is observed.
In this embodiment, the detection box is installed on the fixed rod with the lifting function, the fault alarm module 2 is tightly attached to the panel of the intelligent photovoltaic module 3, after the fault alarm module 2 receives a fault signal, fault indication is carried out through the fault indicator lamp and the buzzer, maintenance personnel replace the intelligent photovoltaic module 3 with faults, and if no faults exist, indication is carried out through the normal indicator lamp.
Embodiment 2, on the basis of the foregoing embodiments, this embodiment provides a photovoltaic system, which includes: a fault locating device and a number of intelligent photovoltaic modules 3 as provided in example 1; wherein the fault locating device is electrically connected with each intelligent photovoltaic module 3.
In summary, the shutdown component and the fault alarm module are arranged, so that after the shutdown component fails, the shutdown component sends out wireless fault signals, the fault alarm module detects the intelligent photovoltaic components one by one, the state is indicated through the corresponding indicator lamp and the buzzer, the intelligent photovoltaic components with faults can be conveniently and rapidly found, and the maintenance and the replacement are convenient.
The components (components not illustrating the specific structure) selected in the present application are common standard components or components known to those skilled in the art, and the structures and principles thereof are known to those skilled in the art through technical manuals or through routine experimental methods. Moreover, the software program related to the application is the prior art, and the application does not relate to any improvement on the software program.
In the description of embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present utility model may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. A fault locating device, comprising:
A plurality of shut-down components and fault alarm modules; wherein the method comprises the steps of
When a certain shutdown component breaks down, the shutdown component sends out a fault signal until the fault alarm module alarms after receiving the complete fault signal;
Each shut-off component is respectively arranged on the back side of the corresponding intelligent photovoltaic component, and each shut-off component is respectively electrically connected with the corresponding intelligent photovoltaic component;
The shut-off assembly includes: the system comprises a first MCU controller and a shutoff switch electrically connected with the first MCU controller;
The shutoff switch is connected into a power line between the intelligent photovoltaic module and the inverter;
The first MUC controller controls the on-off of the switch of the shutoff device to control the on-off of the intelligent photovoltaic module and the inverter;
The fault alarm module comprises: the second MCU controller and the wireless receiving unit are electrically connected with the second MCU controller;
The second MCU controller is suitable for receiving fault signals or normal working signals through the wireless receiving unit.
2. The fault locating device of claim 1, wherein,
When any of the shutdown components works normally, the shutdown component sends out a normal working signal, and the fault alarm module indicates after receiving the complete normal working signal.
3. The fault locating device of claim 1, wherein,
The shut down assembly further comprises: the fault detection unit is electrically connected with the first MCU controller;
the first MCU controller is suitable for detecting whether the switch of the switch is failed by the failure detection unit, and the first MUC controller periodically sends out a failure signal when the switch of the switch is failed, or
The first MUC controller periodically sends out a normal operation signal when the switch of the shutoff device normally works.
4. A fault locating device as claimed in claim 3, wherein,
The fault detection unit includes: an optocoupler connected to the shutoff switch;
The first MCU controller is suitable for detecting a shutoff switch through light coupling.
5. The fault locating device of claim 1, wherein,
The shut down assembly further comprises: the wireless transmitting unit is electrically connected with the first MCU controller;
The first MCU controller is suitable for wirelessly transmitting a fault signal or a normal working signal to a fault alarm module close to the intelligent photovoltaic module through the wireless transmitting unit.
6. The fault locating device of claim 1, wherein,
The fault alarm module further comprises: a signal filtering circuit;
The second MUC controller is suitable for obtaining a fault signal or a normal working signal received by the wireless receiving unit through the signal filtering circuit so as to filter an interference signal.
7. The fault locating device of claim 1, wherein,
The fault alarm module comprises: the fault indicator lamp, the normal indicator lamp and the buzzer are electrically connected with the second MCU controller;
The second MCU controller is suitable for emitting indicator lights with different colors through the fault indicator lights and the normal indicator lights so as to respectively indicate fault signals and normal working signals;
And after receiving the complete fault signal, the second MCU controller is suitable for alarming through a buzzer.
8. A photovoltaic system, comprising:
The fault locating device and intelligent photovoltaic modules of any one of claims 1-7; wherein the method comprises the steps of
The fault locating device is electrically connected with each intelligent photovoltaic module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322590026.3U CN221058265U (en) | 2023-09-24 | 2023-09-24 | Fault positioning device and photovoltaic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322590026.3U CN221058265U (en) | 2023-09-24 | 2023-09-24 | Fault positioning device and photovoltaic system |
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| CN221058265U true CN221058265U (en) | 2024-05-31 |
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| CN202322590026.3U Active CN221058265U (en) | 2023-09-24 | 2023-09-24 | Fault positioning device and photovoltaic system |
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| CN (1) | CN221058265U (en) |
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- 2023-09-24 CN CN202322590026.3U patent/CN221058265U/en active Active
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