CN220022324U - Active detection type power distribution system - Google Patents
Active detection type power distribution system Download PDFInfo
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- CN220022324U CN220022324U CN202321572439.2U CN202321572439U CN220022324U CN 220022324 U CN220022324 U CN 220022324U CN 202321572439 U CN202321572439 U CN 202321572439U CN 220022324 U CN220022324 U CN 220022324U
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 9
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Abstract
The utility model relates to the technical field of relay protection, and provides an active detection type power distribution system, which comprises: the distribution line terminal comprises a CPU, an analog quantity processing module and a first I/O module; the detection signal processing terminal comprises a signal generation module, a signal transmission module and a second I/O module; the first I/O module is connected with the CPU; the first I/O module is connected with the second I/O module and is used for transmitting a detection signal to start sending commands; the signal sending module is connected with the analog quantity processing module and used for transmitting detection signals, and the detection signals are injected into the distribution line through the distribution line terminal. According to the scheme of the utility model, the detection signal can be injected into the distribution line after the fault occurs, and an active detection type protection function is constructed based on the signal characteristics fed back on the distribution line, so that the rapid and accurate positioning and isolation of the fault of the distribution network are realized. According to the scheme, the popularity of active detection type protection in the power distribution terminal can be effectively improved, and the adaptability and accuracy of power distribution network protection in a novel power system are improved.
Description
Technical Field
The utility model relates to the technical field of relay protection, in particular to an active detection type power distribution system.
Background
With the promotion of double-carbon strategy and the implementation of novel power system construction, a large number of distributed power sources are connected into a power distribution network, so that great challenges are brought to the traditional passive protection in the power distribution network, and the selectivity and reliability of the power distribution network protection are affected.
At present, overhead line protection in a power distribution network is mainly realized by a power distribution terminal, a traditional passive protection function is generally configured, and the passive protection mode cannot construct the protection function based on signal characteristics fed back on the line, so that quick and accurate positioning and isolation of power distribution network faults cannot be realized.
Disclosure of Invention
The utility model aims to solve at least one technical problem in the background art and provides an active detection type power distribution system.
To achieve the above object, the present utility model provides an active detection type power distribution system, including:
the distribution line terminal comprises a CPU, an analog quantity processing module and a first I/O module;
the detection signal processing terminal comprises a signal generation module, a signal transmission module and a second I/O module;
the first I/O module is connected with the CPU;
the first I/O module is connected with the second I/O module and is used for transmitting a detection signal to start a sending command;
the signal sending module is connected with the analog quantity processing module and is used for transmitting detection signals, and the detection signals are injected into the distribution line through the distribution line terminal.
According to one aspect of the utility model, the input end of the analog processing module is connected with the signal sending module, the analog processing module is electrically connected with the distribution line, and after receiving the detection signal transmitted by the signal sending module, the analog processing module sends the detection signal to the distribution line, and an active detection type protection function is constructed based on the characteristics of the detection signal fed back by the line.
According to one aspect of the utility model, the first I/O module includes an on-acquisition sub-module electrically connected to the second I/O module for on-acquisition and a detection signal start command output sub-module for detection signal start command output, respectively.
According to one aspect of the utility model, the distribution line terminal further comprises a detection signal processing module, wherein the detection signal processing module is connected with the CPU and is used for starting logic operation of injection of detection signals and extracting detection signals fed back by the distribution line.
According to one aspect of the utility model, the distribution line terminal further comprises an a/D module, wherein an input end of the a/D module is connected with an output end of the analog quantity processing module, and an output end of the a/D module is connected with the CPU.
According to one aspect of the present utility model, the signal generating module is connected to the signal transmitting module, and transmits the probe signal generated thereby to the signal transmitting module.
According to one aspect of the present utility model, further comprising:
the output end of the battery management module is respectively connected with the distribution line terminal and the detection signal processing terminal, judges whether the distribution line loses power or not, and sends a power supply instruction when the distribution line loses power;
and the storage battery is connected with the battery management module and is used for supplying power according to the instruction of the battery management module.
According to one aspect of the utility model, an active detection power distribution system includes: the distribution line terminal comprises a CPU, an analog quantity processing module and a first I/O module; the detection signal processing terminal comprises a signal generation module, a signal transmission module and a second I/O module; the first I/O module is connected with the CPU;
the first I/O module is connected with the two I/O modules and is used for transmitting a detection signal to start sending commands; the signal sending module is connected with the analog quantity processing module and used for transmitting detection signals, and the detection signals are injected into the distribution line through the distribution line terminal. The distribution line terminal realizes functions of analog quantity acquisition, detection signal transmission, detection signal processing and starting command transmission. The analog quantity processing module of the distribution line terminal collects three-phase voltage and current, sends detection signals to the distribution line, and builds an active detection type protection function based on signal characteristics of line feedback. The CPU of the distribution line terminal realizes the line protection, measurement and control functions, and realizes the active detection type protection function based on the detection signal characteristics of line feedback. The detection signal processing terminal realizes the generation and sending functions of detection signals. According to the scheme, detection signals can be injected into the distribution line after faults occur, an active detection type protection function is built based on signal characteristics fed back on the distribution line, and quick and accurate positioning and isolation of the faults of the distribution network are achieved. According to the scheme, the popularity of active detection type protection in the power distribution terminal can be effectively improved, and the adaptability and accuracy of power distribution network protection in a novel power system are improved.
Drawings
Fig. 1 schematically illustrates a block diagram of a structural arrangement of an active detection power distribution system according to one embodiment of the present utility model;
fig. 2 schematically shows a block diagram of the structural arrangement of a distribution line terminal according to an embodiment of the present utility model;
fig. 3 schematically shows a block diagram of a structural arrangement of a probe signal processing terminal according to an embodiment of the present utility model.
Detailed Description
The present disclosure will now be discussed with reference to exemplary embodiments. It should be understood that the embodiments discussed are merely to enable those of ordinary skill in the art to better understand and thus practice the teachings of the present utility model and do not imply any limitation on the scope of the utility model.
As used herein, the term "comprising" and variants thereof are to be interpreted as meaning "including but not limited to" open-ended terms. The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment.
Fig. 1 schematically illustrates a block diagram of a structural arrangement of an active detection power distribution system according to one embodiment of the present utility model; fig. 2 schematically shows a block diagram of the structural arrangement of a distribution line terminal according to an embodiment of the present utility model; fig. 3 schematically shows a block diagram of a structural arrangement of a probe signal processing terminal according to an embodiment of the present utility model; as shown in fig. 1 to 3, in the present embodiment, an active detection type power distribution system includes:
the distribution line terminal 1 comprises a CPU9, an analog quantity processing module 2 and a first I/O module 3;
the detection signal processing terminal 4 comprises a signal generation module 10, a signal transmission module 5 and a second I/O module 6;
the first I/O module 3 is connected with the CPU;
the first I/O module 3 is connected with the two I/O modules 6 and is used for transmitting a detection signal to start sending commands;
the signal transmitting module 5 is connected to the analog processing module 2 for transmitting a detection signal, which is injected into the distribution line via the distribution line terminal 1.
In this embodiment, the input end of the analog processing module 2 is connected to the signal transmitting module 5, the analog processing module 2 is electrically connected to the distribution line, and after receiving the detection signal transmitted by the signal transmitting module 5, the analog processing module 2 transmits the detection signal to the distribution line, and constructs an active detection protection function based on the characteristics of the detection signal fed back by the line.
Further, in the present embodiment, the first I/O module 3 includes an on-acquisition sub-module for on-acquisition and a detection signal start command output sub-module for detection signal start command output, which are electrically connected with the second I/O module 6, respectively.
As shown in fig. 2, in the present embodiment, the distribution line terminal 1 further includes a detection signal processing module 7, where the detection signal processing module 7 is connected to the CPU9, and is configured to start logic operation of injection of the detection signal, and extract the detection signal fed back by the distribution line.
As shown in fig. 2, in the present embodiment, the distribution line terminal 1 further includes an a/D module 8, an input terminal of the a/D module 8 is connected to an output terminal of the analog quantity processing module 2, and an output terminal of the a/D module 8 is connected to the CPU 9. Which converts the analog signal input by the analog processing module 2 into a digital signal and then transmits the digital signal to the CPU9 for processing.
As shown in fig. 3, in the present embodiment, the probe signal processing terminal 4 further includes a signal generation module 10, and the signal generation module 10 is connected to the signal transmission module 5, and transmits the probe signal generated by the signal generation module to the signal transmission module 5.
Furthermore, as shown in fig. 1, in the present embodiment, the active detection type power distribution system according to the present utility model further includes:
the output end of the battery management module 11 is respectively connected with the distribution line terminal 1 and the detection signal processing terminal 4, judges whether the distribution line loses power, and sends a power supply instruction when the distribution line loses power;
the storage battery 12 is connected to the battery management module 11, and supplies power according to an instruction from the battery management module 11. By the arrangement, reliable transmission of the detection signal can be ensured when the distribution line loses power.
Based on the above scheme of the utility model, in practice, in the utility model, the distribution line terminal realizes functions of analog quantity acquisition, detection signal transmission, detection signal processing and start command transmission. The analog quantity processing module of the distribution line terminal collects three-phase voltage and current, sends detection signals to the distribution line, and builds an active detection type protection function based on signal characteristics of line feedback. The CPU of the distribution line terminal realizes the line protection, measurement and control functions, and realizes the active detection type protection function based on the detection signal characteristics of line feedback. The detection signal processing terminal realizes the generation and sending functions of detection signals.
According to the scheme of the utility model, after the fault occurs, the detection signal can be injected into the distribution line, and an active detection type protection function is constructed based on the signal characteristics fed back on the distribution line, so that the rapid and accurate positioning and isolation of the fault of the distribution network are realized. According to the scheme, the popularity of active detection type protection in the power distribution terminal can be effectively improved, and the adaptability and accuracy of power distribution network protection in a novel power system are improved.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the utility model, and that, although the utility model has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.
Claims (7)
1. An active detection power distribution system, comprising:
the distribution line terminal comprises a CPU, an analog quantity processing module and a first I/O module;
the detection signal processing terminal comprises a signal generation module, a signal transmission module and a second I/O module;
the first I/O module is connected with the CPU;
the first I/O module is connected with the second I/O module and is used for transmitting a detection signal to start a sending command;
the signal sending module is connected with the analog quantity processing module and is used for transmitting detection signals, and the detection signals are injected into the distribution line through the distribution line terminal.
2. The active probing power distribution system as recited in claim 1 wherein the input of the analog processing module is coupled to the signal transmitting module, the analog processing module is electrically coupled to the power distribution line, the analog processing module receives the probing signals transmitted by the signal transmitting module, transmits the probing signals to the power distribution line, and constructs the active probing protection function based on characteristics of the probing signals fed back by the line.
3. The active detection power distribution system of claim 1, wherein the first I/O module comprises an on-acquisition sub-module for on-acquisition and a detection signal actuation command output sub-module for detection signal actuation command output, respectively, electrically connected to the second I/O module.
4. The active probing power distribution system as recited in claim 1 wherein the power distribution line terminals further comprise a probing signal processing module coupled to the CPU for initiating a logic operation of the injection of probing signals and extracting probing signals fed back by the power distribution line.
5. The active detection power distribution system of claim 1, wherein the power distribution line terminal further comprises an a/D module, an input of the a/D module is connected to an output of the analog processing module, and an output of the a/D module is connected to the CPU.
6. The active detection power distribution system of claim 1, wherein the signal generation module is coupled to the signal transmission module to transmit the detection signal generated thereby to the signal transmission module.
7. The active detection power distribution system of any of claims 1-6, further comprising:
the output end of the battery management module is respectively connected with the distribution line terminal and the detection signal processing terminal, judges whether the distribution line loses power or not, and sends a power supply instruction when the distribution line loses power;
and the storage battery is connected with the battery management module and is used for supplying power according to the instruction of the battery management module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321572439.2U CN220022324U (en) | 2023-06-19 | 2023-06-19 | Active detection type power distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321572439.2U CN220022324U (en) | 2023-06-19 | 2023-06-19 | Active detection type power distribution system |
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| Publication Number | Publication Date |
|---|---|
| CN220022324U true CN220022324U (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321572439.2U Active CN220022324U (en) | 2023-06-19 | 2023-06-19 | Active detection type power distribution system |
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| CN (1) | CN220022324U (en) |
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2023
- 2023-06-19 CN CN202321572439.2U patent/CN220022324U/en active Active
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