CN219843431U - Bypass control device of distributed energy storage converter - Google Patents
Bypass control device of distributed energy storage converter Download PDFInfo
- Publication number
- CN219843431U CN219843431U CN202321119321.4U CN202321119321U CN219843431U CN 219843431 U CN219843431 U CN 219843431U CN 202321119321 U CN202321119321 U CN 202321119321U CN 219843431 U CN219843431 U CN 219843431U
- Authority
- CN
- China
- Prior art keywords
- energy storage
- storage converter
- detection circuit
- power grid
- bypass switch
- 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
- 238000004146 energy storage Methods 0.000 title claims abstract description 97
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 230000002159 abnormal effect Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a bypass control device of a distributed energy storage converter, which comprises a detection circuit, a controller and a bypass switch, wherein the detection circuit is connected with the controller; the detection circuit is connected with the energy storage converter and is used for detecting the state of the energy storage converter; the controller is connected with the detection circuit and controls the bypass switch according to the output signal of the detection circuit; when the output signal of the energy storage converter is abnormal, the controller controls the bypass switch to cut off the connection between the energy storage converter and the power grid; the bypass switch is connected with the controller, and the bypass switch is connected between the energy storage converter and the power grid. The utility model solves the technical problem that the connection between the energy storage equipment and the power grid cannot be timely isolated in the prior art, and has the effect of timely isolating the connection between the energy storage equipment and the power grid.
Description
Technical Field
The utility model relates to the technical field of distributed energy storage, in particular to a bypass control device of a distributed energy storage converter.
Background
With rapid energy consumption and increasingly serious environmental problems, energy storage technology has become an important development direction in the future energy field. Distributed energy storage systems have the advantages of flexibility, high response speed and the like, and are therefore attracting more and more attention.
The energy storage converter is used as an important component in the distributed energy storage system and can convert direct current stored in the energy storage equipment into alternating current used by a power supply network. However, since the energy storage converter may malfunction during operation, such as overvoltage, overcurrent, etc., these malfunctions may have serious influence on the power grid and may even lead to paralysis of the power grid. Therefore, in order to ensure the safety and stability of the power grid, it is necessary to isolate the energy storage device from the power grid immediately when the energy storage converter fails.
Currently, bypass control of an energy storage converter is generally achieved by adopting a manual mode such as a mechanical switch or a circuit breaker. However, the response speed of the method is low, the connection between the energy storage equipment and the power grid cannot be timely isolated, and faults are easy to spread, so that the safety and stability of the power grid are affected.
Therefore, a new bypass control device of the distributed energy storage converter is needed to solve the technical problem that connection between the energy storage device and the power grid cannot be timely isolated in the prior art.
Disclosure of Invention
The utility model mainly aims to provide a bypass control device of a distributed energy storage converter, which aims to solve the technical problem that connection between energy storage equipment and a power grid cannot be timely isolated at present.
In order to achieve the above object, the present utility model provides the following techniques: a bypass control device of a distributed energy storage converter is applied to a distributed energy storage system and comprises a detection circuit, a controller and a bypass switch; the detection circuit is connected with the energy storage converter and is used for detecting the state of the energy storage converter; the controller is connected with the detection circuit and controls the bypass switch according to the output signal of the detection circuit; when the output signal of the energy storage converter is abnormal, the controller controls the bypass switch to cut off the connection between the energy storage converter and the power grid; the bypass switch is connected with the controller, and the bypass switch is connected between the energy storage converter and the power grid.
Optionally, the detection circuit comprises a voltage detection circuit and/or a current detection circuit for detecting an output voltage and/or an output current of the energy storage converter.
Optionally, the detection circuit outputs the abnormal signal by detecting that the output voltage or the output current of the energy storage converter exceeds a preset threshold value.
Optionally, the bypass switch is a transistor.
Optionally, the controller comprises a microcontroller, the microcontroller is connected in parallel between the energy storage converter and the power grid, and the microcontroller is provided with a plurality of detection ends and an output end for outputting control signals according to signals detected by the detection ends; the output end of the microcontroller is connected with the control end of the transistor.
Optionally, the detection circuit further comprises a sensor, the sensor is connected with a power grid, the sensor is used for detecting the frequency of the power grid, and the detection circuit adjusts the electric frequency of the output signal of the energy storage converter according to the frequency of the power grid.
Optionally, the device further comprises a display screen, wherein the display screen is connected with the detection circuit and is used for displaying the state of the energy storage converter.
Optionally, the bypass switch further comprises an indicator light, and when the bypass switch is turned off, the indicator light becomes bright.
The technical principle of the utility model is as follows: the state of the energy storage converter is detected by the controller, and the bypass switch is controlled according to the state of the energy storage converter. When the state of the energy storage converter is abnormal, the bypass switch is controlled to cut off the connection between the energy storage converter and the power grid, so that the energy storage equipment is isolated from the power grid.
Compared with the prior art, the utility model can bring the following technical effects: by adopting the controller to control the bypass switch, the technical problem that the connection between the energy storage equipment and the power grid cannot be timely isolated in the prior art is solved. The device has the advantages that the connection between the energy storage equipment and the power grid can be timely isolated, the reliability and the efficiency of the energy storage equipment are effectively improved, faults are reduced, and the safe and stable technical effect of the power grid is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the utility model and are not to be construed as unduly limiting the utility model. In the drawings:
fig. 1 is a schematic diagram of a bypass control device of a distributed energy storage converter according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a bypass control device of a distributed energy storage converter according to another embodiment of the present utility model;
fig. 3 is a schematic diagram of a distributed energy storage system according to an embodiment of the present utility model.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, an embodiment of the present utility model proposes a bypass control device for a distributed energy storage converter, which includes a detection circuit 1, a controller 2, and a bypass switch 3. The detection circuit 1 is connected with the energy storage converter 4 and is used for detecting the state of the energy storage converter; the utility model controller 2 is connected with the utility model detection circuit 1 and controls the utility model bypass switch 3 according to the output signal of the detection circuit 1; when the output signal of the energy storage converter 4 is abnormal, the utility model controller 2 controls the utility model bypass switch 3 to cut off the connection between the energy storage converter 4 and the power grid 5; the utility model bypass switch 3 is connected with the utility model controller 2, and the utility model bypass switch 3 is connected between the utility model energy storage converter 4 and the power grid 6.
The detailed working procedure of this embodiment: the controller 2 may be a separate device or may be a module within the energy storage converter 4. The controller 2 determines whether the energy storage converter 4 works normally by detecting parameters such as output voltage and output current of the energy storage converter 4. When the controller 2 detects that the energy storage converter 4 fails, the bypass switch 3 is immediately controlled to cut off the connection between the energy storage device 5 and the power grid 6, and the bypass switch 3 is used for controlling the connection between the energy storage converter 4 and the power grid 6, so that the connection between the energy storage device 5 and the power grid 6 can be timely isolated, the reliability and the efficiency of the energy storage device can be effectively improved, the occurrence of the failure is reduced, and the safety and the stability of the power grid are ensured. In addition, the bypass control device is simple in structure, easy to realize and high in economical efficiency and practicability.
Optionally, the utility model detection circuit comprises a voltage detection circuit and/or a current detection circuit for detecting an output voltage and/or an output current of the utility model energy storage converter.
Further, the detection circuit outputs an abnormal signal by detecting that the output voltage or the output current of the energy storage converter exceeds a preset threshold value. And judging whether the current system needs bypass or not by detecting the voltage or the current of the energy storage converter, if the current of the energy storage system is overlarge, the bypass function needs to be started. The voltage signal and the current signal are relatively intuitive signals.
Optionally, the bypass switch is a transistor. Thus, the transistor has three terminals, which is convenient to control.
Optionally, the utility model controller comprises a microcontroller, the utility model microcontroller is connected in parallel between the utility model energy storage converter and the power grid, and the utility model microcontroller is provided with a plurality of detection ends and an output end for outputting control signals according to signals detected by the detection ends of the utility model; an output terminal of the inventive microcontroller is connected to a control terminal of the inventive transistor.
As shown in fig. 2, according to another embodiment of the present utility model, a bypass control device for a distributed energy storage converter, wherein the controller 2 further comprises a sensor 9 and a display screen 10. The sensor 9 is used for detecting the frequency of the power grid and adjusting the frequency of the power generated by the energy storage converter 4 according to the frequency of the power grid so as to maintain the normal frequency of the power grid. And the display screen 10 is used for displaying the state of the energy storage converter 4. The detailed working procedure of this embodiment is: the sensor detects the frequency of the energy storage converter by the power grid frequency controller, the output frequency of the energy storage converter is consistent with the frequency of the power grid, and the detected voltage and current states of the energy storage converter and the frequency of the power grid are displayed on the display screen, so that the distributed energy storage system can be monitored at any time. Based on the further improvement, the effects of stabilizing the power grid frequency and monitoring the control of the energy storage converter are also generated due to the fact that the power grid frequency is detected and displayed through the display screen.
As shown in fig. 3, the embodiment of the utility model provides a bypass control device for a distributed energy storage converter, and the bypass switch further comprises an indicator lamp 11, and when the bypass switch 3 is turned off, the indicator lamp 11 is lightened. The indicator light is also connected with the controller, and the indicator light can be simultaneously electrified when the bypass switch is controlled to be disconnected by the controller, so that the indicator light becomes bright. Thus, the connection condition of the energy storage converter and the power grid can be visually seen through the change of the indicator lamp.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. A bypass control device of a distributed energy storage converter is applied to a distributed energy storage system and is characterized by comprising a detection circuit, a controller and a bypass switch;
the detection circuit is connected with the energy storage converter and is used for detecting the state of the energy storage converter;
the controller is connected with the detection circuit and controls the bypass switch according to the output signal of the detection circuit; when the output signal of the energy storage converter is abnormal, the controller controls the bypass switch to cut off the connection between the energy storage converter and the power grid;
the bypass switch is connected with the controller, and the bypass switch is connected between the energy storage converter and the power grid.
2. A distributed energy storage converter bypass control device as claimed in claim 1, wherein said detection circuit comprises a voltage detection circuit and/or a current detection circuit for detecting an output voltage and/or an output current of said energy storage converter.
3. A distributed energy storage converter bypass control device as claimed in claim 2 wherein said detection circuit outputs an abnormal signal by detecting that the output voltage or output current of said energy storage converter exceeds a predetermined threshold.
4. A distributed energy storage converter bypass control device as in claim 1 wherein said bypass switch is a transistor.
5. The distributed energy storage converter bypass control device of claim 4, wherein the controller comprises a microcontroller connected in parallel between the energy storage converter and a power grid, the microcontroller having a plurality of detection terminals and an output terminal for outputting a control signal according to a signal detected by the detection terminals; the output end of the microcontroller is connected with the control end of the transistor.
6. A distributed energy storage converter bypass control as defined in claim 1, wherein said detection circuit further comprises a sensor, said sensor being connected to a power grid, said sensor being configured to detect a power grid frequency, said detection circuit adjusting the electrical frequency of said energy storage converter output signal in accordance with said power grid frequency.
7. A distributed energy storage converter bypass control device as in claim 1 further comprising a display screen coupled to said detection circuit for displaying the status of said energy storage converter.
8. A distributed energy storage converter bypass control as described in claim 1, wherein said bypass switch further comprises an indicator light, said indicator light being illuminated when said bypass switch is open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321119321.4U CN219843431U (en) | 2023-05-11 | 2023-05-11 | Bypass control device of distributed energy storage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321119321.4U CN219843431U (en) | 2023-05-11 | 2023-05-11 | Bypass control device of distributed energy storage converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219843431U true CN219843431U (en) | 2023-10-17 |
Family
ID=88306172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321119321.4U Active CN219843431U (en) | 2023-05-11 | 2023-05-11 | Bypass control device of distributed energy storage converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219843431U (en) |
-
2023
- 2023-05-11 CN CN202321119321.4U patent/CN219843431U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100391072C (en) | Apparatus for monitoring neutral wire and earth wire, and electric switch device containing the same | |
| CN201654159U (en) | Short-circuit and earth-fault indicator | |
| CN101582585B (en) | Composite monitoring device for electrode difference protection and grounding of direct-current system | |
| CN111526633A (en) | Intelligent monitoring filament relay | |
| CN202586259U (en) | Minisize intelligent electric leakage comprehensive protection switch | |
| CN219843431U (en) | Bypass control device of distributed energy storage converter | |
| KR20150077771A (en) | Battery management device and power supplying system including the same | |
| CN101835313B (en) | LED control device with current monitoring function | |
| CN104941091A (en) | Intelligent firefighting controller for wind generating set | |
| CN102435933A (en) | Automobile circuit fault discrimination method | |
| CN214590753U (en) | Emergency power supply interface device | |
| CN115360668A (en) | Direct current input circuit and control method thereof | |
| CN204595591U (en) | The remote switch apparatus control system that a kind of bringing onto load detects | |
| CN211015788U (en) | Visual single-machine circuit of secondary screen cabinet alarm signal of transformer substation | |
| CN202870260U (en) | Device for detecting automobile electrical appliance switch | |
| CN111741556A (en) | Protection circuit and car light | |
| CN218940767U (en) | Power supply switching system and power supply | |
| CN204440088U (en) | Output switch parameter self-protection circuit | |
| CN221652284U (en) | Energy storage system power-on circuit | |
| CN110505741A (en) | A kind of method and device detecting naval light state | |
| CN213367413U (en) | Electrical control structure | |
| CN215665607U (en) | Belt protection state monitoring and fault screening device | |
| CN217770422U (en) | Constant voltage power supply circuit load detection device with LED indication | |
| CN103501043A (en) | Low-voltage dual-power circuit based on PLC (Programmable Logic Controller) | |
| CN215185865U (en) | Medium-voltage dual-power supply automatic step-by-step switching control device with expansion function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |