CN220043056U - Photovoltaic power generation data acquisition device connecting circuit - Google Patents
Photovoltaic power generation data acquisition device connecting circuit Download PDFInfo
- Publication number
- CN220043056U CN220043056U CN202320408378.XU CN202320408378U CN220043056U CN 220043056 U CN220043056 U CN 220043056U CN 202320408378 U CN202320408378 U CN 202320408378U CN 220043056 U CN220043056 U CN 220043056U
- Authority
- CN
- China
- Prior art keywords
- power supply
- circuit
- generation data
- loop
- power generation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 34
- 239000013307 optical fiber Substances 0.000 claims abstract description 28
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 238000013480 data collection Methods 0.000 claims description 10
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a connecting circuit of a photovoltaic power generation data acquisition device, which comprises a power supply unit and an extension unit, wherein the power supply unit comprises a first power supply loop and a second power supply loop, and the first power supply loop and the second power supply loop are operated in parallel; the extension unit comprises optical fiber communication equipment connected with the second power supply circuit, wherein the optical fiber communication equipment is connected with a signal collection loop, and the signal collection loop is connected with m pieces of collected equipment in parallel. The circuit realizes lightning protection and fuse type isolating switch power supply in the circuit through the alternating current power supply, the extension unit can directly acquire the operation power supply from the photovoltaic inverter without deploying the power supply, and the extension unit and the intelligent acquisition unit adopt an optical cable to extend a serial port channel, so that long-distance and large-area coverage of data communication is realized.
Description
Technical Field
The utility model relates to the field of circuit connection of data acquisition devices, in particular to a circuit for connecting a photovoltaic power generation data acquisition device.
Background
Along with the continuous popularization and construction of photovoltaic power stations, the number of the photovoltaic power stations held by construction enterprises is greatly increased, the positions of the photovoltaic power stations are scattered, and unified management on the power generation operation conditions of the photovoltaic power stations is needed. The data acquisition devices of different inverter brands generally only support respective data platforms, long-distance communication data transmission is difficult, the data acquisition devices cannot be simultaneously in butt joint with a background monitoring system and a photovoltaic operation and maintenance platform, and the requirement of unified management of data of a distributed photovoltaic power station is difficult to meet. Therefore, a data acquisition device which can be suitable for effectively acquiring photovoltaic power generation data under the condition of different distribution distances, rapidly transmitting the data to a monitoring system and a user operation and maintenance system, and can realize rapid load response by being matched with group regulation and group control is needed, so that a user can conveniently master power generation production data, the photovoltaic operation and maintenance efficiency is improved, and the cost of data acquisition and management is reduced.
The intelligent data acquisition unit is used as an access point for data acquisition and convergence, is arranged beside a box-type transformer or in a power distribution room and is responsible for managing the data of an inverter and a box-type transformer access measurement and control device, is different from the existing RS485 serial port based data acquisition mode, and the intelligent acquisition unit adopts an optical cable transmission signal by more than 200 m and adopts a cable transmission signal by less than 200 m under the condition of taking 200 m as a boundary, so that a better economic effect is obtained on the basis of realizing smaller signal error.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
The present utility model has been made in view of the above and/or the problem of how to perform a circuit on a data collection device in the existing connection circuit of a photovoltaic power generation data collection device.
Therefore, the problem to be solved by the utility model is how to connect the photovoltaic power generation data acquisition device connection circuit.
In order to solve the technical problems, the utility model provides the following technical scheme: the circuit comprises a power supply unit and an extension unit, wherein the power supply unit comprises a first power supply loop and a second power supply loop, and the first power supply loop and the second power supply loop are operated in parallel; the extension unit comprises optical fiber communication equipment connected with the second power supply circuit, wherein the optical fiber communication equipment is connected with a signal collection loop, and the signal collection loop is connected with m pieces of collected equipment in parallel.
As a preferred scheme of the connection circuit of the photovoltaic power generation data acquisition device, the utility model comprises the following steps: the first power supply loop is divided into a first input end and a first output end, and the first input end comprises an alternating current power supply and an alternating current output power supply which are connected with each other.
As a preferred scheme of the connection circuit of the photovoltaic power generation data acquisition device, the utility model comprises the following steps: the voltage of the alternating current output power supply is 220V-550V.
As a preferred scheme of the connection circuit of the photovoltaic power generation data acquisition device, the utility model comprises the following steps: the first power supply loop comprises a first live wire and a first zero wire.
As a preferred scheme of the connection circuit of the photovoltaic power generation data acquisition device, the utility model comprises the following steps: and a fuse type isolating switch is arranged between the alternating current power supply and the alternating current output power supply and is positioned on the first fire wire.
As a preferred scheme of the connection circuit of the photovoltaic power generation data acquisition device, the utility model comprises the following steps: the first input end is provided with lightning protection, lightning protection with first live wire and first zero line are connected, lightning protection with first power supply loop parallel operation.
As a preferred scheme of the connection circuit of the photovoltaic power generation data acquisition device, the utility model comprises the following steps: the second power supply circuit is divided into a second input end and a second output end, the second input end is connected with a direct current power supply, and the direct current power supply is divided into a direct current power supply anode and a direct current power supply cathode.
As a preferred scheme of the connection circuit of the photovoltaic power generation data acquisition device, the utility model comprises the following steps: the second output end is connected with the first output end, and a switching power supply is connected between the second output end and the first output end.
As a preferred scheme of the connection circuit of the photovoltaic power generation data acquisition device, the utility model comprises the following steps: the optical fiber communication equipment comprises an anode power port and a cathode power port, wherein the anode power port is connected with the anode of the direct current power supply, and the cathode power port is connected with the cathode of the direct current power supply.
As a preferred scheme of the connection circuit of the photovoltaic power generation data acquisition device, the utility model comprises the following steps: a serial port channel is arranged between the optical fiber communication equipment and the signal collecting loop, an acquisition unit is arranged on one side, far away from the optical fiber communication equipment, connected with the serial port channel, of the optical fiber communication equipment, and the optical fiber communication equipment is connected with the acquisition unit through an optical cable.
The utility model has the beneficial effects that: the lightning protection, the fuse type isolating switch and the power-on work protection are used for providing the data acquisition device, the power supply unit supplies power for the data acquisition device and the protection device, the extension unit can directly acquire the operation power supply from the photovoltaic inverter without deploying the power supply, the serial port channel is extended between the extension unit and the intelligent acquisition unit by adopting an optical cable, and the data reliability of the acquired signals can be still ensured when the data communication distance is far.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of a power supply loop of a photovoltaic power generation data acquisition device according to the present utility model;
fig. 2 is a schematic diagram of a communication loop of the photovoltaic power generation data acquisition device according to the present utility model.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1 to 2, for a first embodiment of the present utility model, a connection circuit of a photovoltaic power generation data collection device is provided, and the circuit includes a power supply unit 100 and an extension unit 200. The power supply unit 100 includes a first power supply circuit 101 and a second power supply circuit 102, and the first power supply circuit 101 and the second power supply circuit 102 operate in parallel.
The extension unit 200 comprises optical fiber communication equipment 201 connected with the second power supply circuit 102, the optical fiber communication equipment 201 is connected with a signal collection loop 202, and m pieces of collected equipment X are connected in parallel with the signal collection loop 202, wherein m is more than or equal to 3.
In the use process, the optical fiber communication equipment 201 is powered by the power supply unit 100, the optical fiber communication equipment 201 collects the photovoltaic power generation data of the collected equipment X which is connected in parallel on the signal collection loop 202, and the data is quickly forwarded to the monitoring system and the user operation and maintenance system.
In this embodiment, most of the information of the collected signal device X is the power generation operation condition of the photovoltaic power station, the collected data is collected through the signal collecting circuit 202, the collected signals are led into the optical fiber communication device 201, the signal circuit uses optical fibers as information transmission carriers, and good data stability can be obtained during remote signal collection, so that the docking of the background monitoring system and the photovoltaic operation and maintenance platform can be realized, and the unified management of the distributed photovoltaic power station data can be met.
The first power supply circuit 101 is used as a power-on normally-open section, the second power supply circuit 102 is used as a normally-closed section, and when the first power supply circuit 101 is stably connected to an alternating current power supply, the second power supply circuit 102 is used as a switch of the signal acquisition device, so that the circuit connection between the device and equipment is facilitated, and when the device needs to be closed, only the second power supply circuit 102 can be operated, and the normal operation of the power-on equipment on the first power supply circuit 101 can be continuously maintained.
Example 2
Referring to fig. 1 to 2, a second embodiment of the present utility model is different from the first embodiment in that: the first power supply circuit 101 is divided into a first input end 101a and a first output end 101b, wherein the first input end 101a comprises an alternating current power supply 101a-1 and an alternating current output power supply AC which are connected with each other, and the voltage of the alternating current output power supply AC ranges from 220V to 550V.
In this embodiment, the first power supply circuit 101 includes a first live wire L1 and a first neutral wire N1, a fuse type isolating switch FU1 is disposed between the AC power source 101a-1 and the AC output power source AC, and the fuse type isolating switch FU1 is located on the first live wire L1.
In this embodiment, the first input end 101a is provided with a lightning protection SPD, the lightning protection SPD is connected with the first live wire L1 and the first neutral wire N1, the lightning protection SPD operates in parallel with the first power supply circuit 101, the second power supply circuit 102 is divided into a second input end 102a and a second output end 102b, the second input end 102a is connected with the dc power supply Z, and the dc power supply Z is divided into a dc power supply positive electrode v1+ and a dc power supply negative electrode V1-.
The second output end 102b is connected with the first output end 101b, a switching power supply PS1 is connected between the second output end 102b and the first output end 101b, the optical fiber communication device 201 includes an anode power supply port 201a and a cathode power supply port 201b, the anode power supply port 201a is connected with a positive pole v1+ of the dc power supply, and the cathode power supply port 201b is connected with a negative pole V1-of the dc power supply.
In this embodiment, a serial port channel 203 is disposed between the optical fiber communication device 201 and the signal collecting circuit 202, an acquisition unit 204 is disposed on a side of the optical fiber communication device 201, which is far away from the side connected with the serial port channel 203, and the optical fiber communication device 201 is connected with the acquisition unit 204 by an optical cable 205.
Compared to embodiment 1, further, after the fuse-type isolating switch FU1 is closed, the first power supply circuit 101 is powered with an alternating current, and accordingly, the switching power supply PS1 is powered, and after the switching power supply PS1 converts the alternating current into a direct current, the second power supply circuit 102 is powered with the direct current, so that the optical fiber communication device 201 is powered on to operate, where the voltage is 24V.
The signal collection loop 202 is connected to a serial port channel 203, the serial port channel 203 being an extension of the acquisition unit 204. The optical fiber communication equipment MF is connected with the acquisition unit 204 through the optical cable 205, and the other side of the optical fiber communication equipment 201 is connected with the communication equipment through a serial port, so that the communication distance of the intelligent data acquisition unit is greatly expanded due to the fact that an electric signal is converted into an optical signal for data transmission, and the remote serial port channel communication of the data acquisition unit and the equipment is realized.
The rest of the structure is the same as that of embodiment 1.
Example 3
Referring to fig. 1 and 2, a third embodiment of the present utility model is shown, which is different from the first two embodiments in that: the electrical checklist for each device of the circuit is shown in the following table.
Table 1 list of selected appliances
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (10)
1. A photovoltaic power generation data acquisition device connecting circuit is characterized in that: comprising the steps of (a) a step of,
a power supply unit (100) comprising a first power supply circuit (101) and a second power supply circuit (102), the first power supply circuit (101) and the second power supply circuit (102) being operated in parallel;
the extension unit (200) comprises optical fiber communication equipment (201) connected with the second power supply circuit (102), the optical fiber communication equipment (201) is connected with a signal collection loop (202), and m pieces of collected equipment (X) are connected in parallel with the signal collection loop (202), wherein m is more than or equal to 3.
2. The photovoltaic power generation data collection device connection circuit of claim 1, wherein: the first power supply loop (101) is divided into a first input end (101 a) and a first output end (101 b), and the first input end (101 a) comprises an alternating current power supply (101 a-1) and an alternating current output power supply (AC) which are connected with each other.
3. The photovoltaic power generation data collection device connection circuit according to claim 2, wherein: the voltage of the alternating current output power supply (AC) ranges from 220V to 550V.
4. A photovoltaic power generation data acquisition device connection circuit according to claim 3, characterized in that: the first power supply loop (101) comprises a first live wire (L1) and a first neutral wire (N1).
5. The photovoltaic power generation data collection device connection circuit of claim 4, wherein: a fuse type isolating switch (FU 1) is arranged between the alternating current power supply (101 a-1) and the alternating current output power supply (AC), and the fuse type isolating switch (FU 1) is positioned on the first live wire (L1).
6. The photovoltaic power generation data collection device connection circuit according to claim 4 or 5, wherein: the first input end (101 a) is provided with a lightning protection (SPD), the lightning protection (SPD) is connected with the first live wire (L1) and the first zero line (N1), and the lightning protection (SPD) and the first power supply loop (101) run in parallel.
7. The connection circuit of the photovoltaic power generation data acquisition device according to any one of claims 2 to 5, wherein: the second power supply circuit (102) is divided into a second input end (102 a) and a second output end (102 b), the second input end (102 a) is connected with a direct current power supply (Z), and the direct current power supply (Z) is divided into a direct current power supply positive electrode (V1+) and a direct current power supply negative electrode (V1-).
8. The photovoltaic power generation data collection device connection circuit of claim 7, wherein: the second output end (102 b) is connected with the first output end (101 b), and a switching power supply (PS 1) is connected between the second output end (102 b) and the first output end (101 b).
9. The photovoltaic power generation data collection device connection circuit of claim 8, wherein: the optical fiber communication equipment (201) comprises an anode power port (201 a) and a cathode power port (201 b), wherein the anode power port (201 a) is connected with the anode (V1+) of the direct current power supply, and the cathode power port (201 b) is connected with the cathode (V1-) of the direct current power supply.
10. The photovoltaic power generation data collection device connection circuit of claim 9, wherein: a serial port channel (203) is arranged between the optical fiber communication equipment (201) and the signal collection loop (202), an acquisition unit (204) is arranged on one side, far away from the optical fiber communication equipment (201), connected with the serial port channel (203), and the optical fiber communication equipment (201) is connected with the acquisition unit (204) through an optical cable (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320408378.XU CN220043056U (en) | 2023-03-07 | 2023-03-07 | Photovoltaic power generation data acquisition device connecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320408378.XU CN220043056U (en) | 2023-03-07 | 2023-03-07 | Photovoltaic power generation data acquisition device connecting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220043056U true CN220043056U (en) | 2023-11-17 |
Family
ID=88743353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320408378.XU Active CN220043056U (en) | 2023-03-07 | 2023-03-07 | Photovoltaic power generation data acquisition device connecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220043056U (en) |
-
2023
- 2023-03-07 CN CN202320408378.XU patent/CN220043056U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108539750A (en) | A kind of accurate load control system and method based on steady control technology | |
| CN103001254B (en) | Alternating current and direct current hybrid micro-grid system | |
| CN111799840B (en) | Off-grid and grid-connected integrated power supply control method and system | |
| CN102842915B (en) | Grid-connected inverter with information integration function | |
| TW201914146A (en) | Integrated power supply system | |
| CN204330940U (en) | A kind of line fault monitoring system | |
| CN220043056U (en) | Photovoltaic power generation data acquisition device connecting circuit | |
| CN105305493A (en) | Independent light-storage micro-grid topology for interconnected operation | |
| CN109524954A (en) | A kind of DC power supply of Integrated intelligent control function | |
| CN202374043U (en) | Intelligent control device for ring main unit | |
| CN117013589A (en) | Multi-energy micro-grid power supply system based on direct current bus | |
| CN219577066U (en) | Data access circuit of data acquisition unit | |
| CN209434877U (en) | A kind of DC power supply of Integrated intelligent control function | |
| CN210201493U (en) | New energy power station power generation unit measurement and control device | |
| CN203537070U (en) | Distributed power supply grid connection interface device | |
| CN207074414U (en) | A kind of server powersupply system | |
| CN202817886U (en) | Uninterruptible power source | |
| CN207459834U (en) | A kind of Power Monitored Control System For Underground Mine | |
| CN206627574U (en) | A kind of multidata transformer station's on-Line Monitor Device | |
| CN105305624A (en) | Intelligent power monitoring system | |
| CN206211553U (en) | A kind of Anti-reflux controller for photovoltaic generating system | |
| CN220188882U (en) | Centralized control box | |
| CN210111694U (en) | Terminal acquisition device | |
| CN216959346U (en) | Alternating current-direct current microgrid router system for comprehensive energy station | |
| CN211629878U (en) | Control system of alternating current-direct current hybrid micro-grid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |