Power distribution device
By introducing a communication connection between the control module and the centralized bypass module in the power distribution device, the input end of the centralized bypass module is automatically controlled, which solves the risk of misoperation caused by manual operation in traditional power distribution equipment, and improves the safety and robustness of the power distribution device.
Patent Information
- Application Number
- CN202421470644.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The external centralized bypass of uninterruptible power supplies in traditional power distribution equipment requires manual operation, which can easily cause misoperation and increase the risk of system reliability.
A power distribution device is designed, including an uninterruptible power module, a centralized bypass module, a control module, a first busbar and a second busbar. It communicates with the centralized bypass module through the control module to automatically control the input end of the centralized bypass module to avoid manual misoperation.
It improves the safety and robustness of the power distribution device, avoids the safety hazards caused by manual misoperation, and ensures that the load can still be powered in the event of uninterruptible power failure.
Smart Images
Figure CN223066858U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of power supply and distribution, and more specifically, to a power distribution device. Background Art
[0002] Power distribution equipment is a general term for equipment that controls current in a power system. Power distribution equipment is usually composed of various electronic components or modules for power control. In the current operating environment of the power system, as a key facility for power transmission and distribution, the stability and security of power distribution equipment are crucial for the reliable operation of the entire power grid. However, with the increasing complexity of the power system, the operating risks and safety challenges faced by power distribution equipment are also growing. In traditional power distribution equipment, the external centralized bypass of the uninterruptible power supply requires manual operation, and any carelessness may cause misoperation, posing great challenges to operation and maintenance and bringing great risks to the reliability of the system. Summary of the Utility Model
[0003] Embodiments of the present disclosure provide a power distribution device that can improve the safety of the centralized bypass of the power distribution device.
[0004] According to one aspect of the present disclosure, there is provided a power distribution device, including: the power distribution device includes an uninterruptible power supply module, a centralized bypass module, a control module, a first bus and a second bus; the input end of the uninterruptible power supply module is connected to the first bus, and the output end of the uninterruptible power supply module is connected to the second bus; the first input end of the centralized bypass module is connected to the first bus, the second input end of the centralized bypass module is connected to the second bus, and the output of the centralized bypass module is used to supply power to the load of the power distribution device; the control module is communicatively connected to the centralized bypass module, and the control module is configured to control at least one input end of the centralized bypass module to operate.
[0005] Optionally, the uninterruptible power supply module includes at least one uninterruptible power supply unit, the control module is communicatively connected to each uninterruptible power supply unit, and the control module obtains the working state of the uninterruptible power supply unit based on the communication connection.
[0006] Optionally, a first switch and a second switch are respectively arranged at the first input end and the second input end of the centralized bypass module, the control module controls the first input end to operate by closing the first switch, and the control module also controls the second input end to operate by closing the second switch.
[0007] Optionally, a first switch and a second switch are respectively arranged at the first input end and the second input end of the centralized bypass module, and the centralized bypass module is further provided with a first key for controlling the opening and closing of the first switch and a second key for controlling the opening and closing of the second switch;
[0008] The first key and the second key are in a locked state;
[0009] The control module controls the first input terminal to work by releasing the locked state of the first key, and the control module controls the second input terminal to work by releasing the locked state of the second key.
[0010] Optionally, the power distribution device further includes a third bus and a power distribution module, and the output terminal of the centralized bypass module and the power distribution module are respectively connected to the third bus;
[0011] The power distribution power supply is used to distribute power to the loads of the power distribution device.
[0012] Optionally, the control module is connected to the third bus, and the control module is powered through the third bus.
[0013] Optionally, the power distribution device further includes: an incoming line tie module and a transformer module, and the first bus is connected to an external power system through the incoming line tie module and the transformer module.
[0014] Optionally, the power distribution device further includes an emergency incoming line module, the output terminal of the emergency incoming line module is connected to the first bus, and the input terminal of the emergency incoming line module is connected to an emergency power supply.
[0015] Optionally, controlling at least one input terminal of the centralized bypass module based on the device state of the uninterruptible power supply module includes:
[0016] When all the uninterruptible power supply units are in a normal state, controlling the second input terminal to work;
[0017] When at least one of the uninterruptible power supply units is in a fault state, controlling the first input terminal to work, and after the first input terminal works, controlling the second input terminal to stop working;
[0018] When all the fault state uninterruptible power supply units return to the normal state, controlling the second input terminal to work, and after the second input terminal works, controlling the first input terminal to stop working.
[0019] Optionally, the control module is further configured to:
[0020] When any one of the uninterruptible power supply units is in a fault state, setting all the uninterruptible power supplies to the static bypass state; and,
[0021] When all uninterruptible power supply units in the fault state are converted to the normal state and the second input terminal is operating, all the uninterruptible power supply units are set to the operating state.
[0022] One beneficial effect of the embodiments of the present disclosure is to provide a power distribution device, including an uninterruptible power supply module, a centralized bypass module, a control module, a first bus, and a second bus. The input of the uninterruptible power supply module is connected to the first bus, and the output is connected to the second bus. The first input terminal of the centralized bypass module is connected to the first bus, and the second input terminal is connected to the second bus, enabling it to supply power to the load through the first input terminal when the uninterruptible power supply module fails, improving the robustness of the power distribution device. The control module is communicatively connected to the centralized bypass module and can control at least one input terminal to operate. Through the above power distribution device, the control module can automatically control the input source of the centralized bypass of the power distribution device based on the communication connection to supply power to the subsequent load, avoiding potential safety hazards caused by manual misoperation and improving the safety of the power distribution device.
[0023] Through the following detailed description of the exemplary embodiments of the present disclosure with reference to the accompanying drawings, other features and advantages of the embodiments of the present disclosure will become clear. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The drawings incorporated in the specification and constituting a part of the specification illustrate the embodiments of the present disclosure and, together with the description, are used to explain the principles of the embodiments of the present disclosure.
[0025] Figure 1 is a schematic structural diagram of a power distribution device according to an embodiment;
[0026] Figure 2 is a schematic diagram of an example of a power distribution device according to an embodiment; DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] Now, various exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as a limitation on the present invention, its application, or its use.
[0029] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be regarded as part of the specification.
[0030] In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.
[0031] It should be noted that like reference numerals and letters refer to like items in the following figures. Thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
[0032] An embodiment of the present application discloses a power distribution device. A power distribution device, such as Figure 1 shown, the power distribution device includes an uninterruptible power supply module, a centralized bypass module, a control module, a first bus and a second bus; the input end of the uninterruptible power supply module is connected to the first bus, and the output end of the uninterruptible power supply module is connected to the second bus; the first input end of the centralized bypass module is connected to the first bus, the second input end of the centralized bypass module is connected to the second bus, and the output of the centralized bypass module is used to supply power to the load of the power distribution device; the control module is communicatively connected to the centralized bypass module, and the control module is used to control at least one input end of the centralized bypass module to operate.
[0033] In an example of this embodiment, the system further includes: an incoming line tie module and a transformer module, and the first bus is connected to an external power system through the incoming line tie module and the transformer module.
[0034] In this embodiment, the power distribution device may include multiple sets of bus systems. For example, a first bus connected to an external power system and a second bus output by the uninterruptible power supply module. Among them, the first bus can be connected to the external power system through the incoming line tie module and the transformer module. Specifically, the transformer module can convert the voltage of the externally input electric energy and then input it into the first bus through the incoming line tie module. The incoming line tie module can also be connected to other power distribution devices at the same time to provide external electric energy.
[0035] In an example of this embodiment, the power distribution device may further include a medium-voltage power distribution module, and the medium-voltage power distribution module can be arranged between the transformer module and the external medium-voltage power distribution system to provide protection for the electric energy input process.
[0036] In an example of this embodiment, the uninterruptible power supply module includes at least one uninterruptible power supply unit, the control module is communicatively connected to each uninterruptible power supply unit, and the control module obtains the working state of the uninterruptible power supply unit based on the communication connection.
[0037] In an example, such as Figure 2As shown, the uninterruptible power supply module may include multiple uninterruptible power supply units, and each uninterruptible power supply unit may be an independent uninterruptible power supply. A switch may be respectively arranged at the input and output ends of the unit to ensure the safety of the uninterruptible power supply unit. In this embodiment, multiple uninterruptible power supply units are connected in parallel between the first bus and the second bus, the input ends are connected in parallel to the first bus, and the output ends are connected in parallel to the second bus. At the same time, the uninterruptible power supply unit is communicatively connected to the control unit, and in Figure 2 it, the communication connection is represented by a dotted connecting line. The uninterruptible power supply may receive control instructions from the control unit based on this communication connection, or report its own working status. In this example, the uninterruptible power supply module can regulate voltage and provide power-off protection to maintain the power supply to the subsequent load and avoid damage to the subsequent load caused by power-off.
[0038] In this embodiment, a first switch and a second switch are respectively arranged at the first input end and the second input end of the centralized bypass module. The control module controls the first input end to work by closing the first switch, and the control module also controls the second input end to work by closing the second switch.
[0039] In this embodiment, the centralized bypass module includes a first switch and a second switch. The first switch and the second switch can be closed or opened based on the communication connection with the control module and under its control. The control module controls at least one input end of the centralized bypass module to work by controlling the closing or opening of the switch.
[0040] In an example of this embodiment, a first switch and a second switch are respectively arranged at the first input end and the second input end of the centralized bypass module. The centralized bypass module is also provided with a first key for controlling the opening and closing of the first switch and a second key for controlling the opening and closing of the second switch; the first key and the second key are in a locked state; the control module controls the first input end to work by releasing the locked state of the first key, and the control module controls the second input end to work by releasing the locked state of the second key.
[0041] In this embodiment, the centralized bypass module includes a first switch and a second switch, as well as a first key for controlling the opening and closing of the first switch and a second key for controlling the opening and closing of the second switch. In this embodiment, the first key and the second key may be physical keys or keys such as electronic keys. In this embodiment, when the first key and the second key are physical keys, the first key and the second key can be locked by a mechanical structure to prevent the user from pulling them out. When the first key and the second key are electronic keys, the locking of the first key and the second key can be locked electronically to freeze the use of the key. In this example, the control module can make the user or the operation and maintenance personnel control the input end to work by releasing the locked states of the first key and the second key.
[0042] In this example, through the above-mentioned power distribution device, the control module can automatically control the input source of the centralized bypass of the power distribution device based on the communication connection to supply power to the subsequent load, avoiding potential safety hazards caused by manual misoperation and improving the safety of the power distribution device.
[0043] In an example of this embodiment, based on the device status of the uninterruptible power supply module, at least one input end of the centralized bypass module is controlled to work, including: when all uninterruptible power supply units are in a normal state, controlling the second input end to work; when at least one uninterruptible power supply unit is in a fault state, controlling the first input end to work, and after the first input end works, controlling the second input end to stop working; when all the uninterruptible power supply units in the fault state turn to the normal state, controlling the second input end to work, and after the second input end works, controlling the first input end to stop working.
[0044] In an example of this embodiment, the control module can control the second input end to work when all uninterruptible power supply units are in a normal state. For example, when all uninterruptible power supplies are normal, all uninterruptible power supplies work, stabilize the input electric energy, and after improving the power quality, it is input into the centralized bypass module through the second bus and the second input port and then output to the load. When at least one uninterruptible power supply unit is in a fault state, in order to ensure the safety of the circuit, the first input end can be controlled to work, and the electric energy is directly input into the centralized bypass unit from the first bus. At the same time, after the first input end works, the control unit can control the second input end to disconnect, so that the power distribution device can continue to supply power in the case of an uninterruptible power supply failure. When all the uninterruptible power supplies in the fault state return to normal, the control module can also control the second input end to work, and the electric energy is output to the centralized bypass module after being stabilized and the quality is improved by the uninterruptible power supply unit, and finally output to the load. After the second input end works, the first input end is then controlled to stop working.
[0045] In an example of this embodiment, the control module is further configured to: when any uninterruptible power supply unit is in a fault state, set all uninterruptible power supplies to the static bypass state; and when all the uninterruptible power supply units in the fault state turn to the normal state and the second input end works, set all uninterruptible power supply units to the working state.
[0046] In an example, when the uninterruptible power supply unit is in a fault state, the control unit can control all uninterruptible power supply units to enter and be locked in the static bypass state to ensure the progress of maintenance and repair operations. When all the uninterruptible power supplies in the fault state turn to the normal state, the control unit can control all uninterruptible power supplies to enter the normal working state and cooperate with the second input end to work, so that the electric energy is input into the load after being stabilized by the uninterruptible power supply.
[0047] In an example of this embodiment, as Figure 2 shown, the power distribution device further includes an emergency power input module, the output end of the emergency power input module is connected to the first bus, and the input end of the emergency power input module is connected to an emergency power supply.
[0048] In one example, the power distribution device further includes an emergency power input module, as Figure 2 shown, this module can be connected to an emergency power supply, such as a generator. The emergency power input module is also connected to the first bus. This module can supply temporary emergency power to the power distribution device when there is a power outage in the external input, a transformer failure, or other situations where input is unavailable, ensuring that the subsequent load can continue to operate for a short period.
[0049] In one example, the power distribution device further includes a mains power distribution module, as Figure 2 shown, this module is connected to the first bus. The mains power distribution unit can be configured with feeder switches of different specifications as needed to supply power to some loads that do not require uninterrupted power supply.
[0050] In one example, as Figure 2 shown, the power distribution device further includes a compensation module. Both the input end and the output end of the compensation module can be connected to the first bus to improve the power factor of the first bus.
[0051] In an example of this embodiment, the power distribution device further includes a third bus and a power distribution module. The output end of the centralized bypass module and the power distribution module are respectively connected to the third bus; the power distribution power supply is used to distribute power to the loads of the power distribution device.
[0052] In this example, as Figure 2 shown, the power distribution device further includes a third bus. The output end of the centralized bypass module is connected to the third bus to input the electric energy output from the first bus or the second bus into the third bus. At the same time, the power distribution device further includes a power distribution module, which can be configured with feeder switches of different specifications as needed to supply power to loads that require uninterrupted power supply.
[0053] In an example of this embodiment, the control module is connected to the third bus, and the control module is powered through the third bus.
[0054] In an example of this embodiment, the power distribution device may include a second uninterruptible power supply module, which may also include at least one uninterruptible power supply unit. The input end of this module, that is, the input end of the uninterruptible power supply unit, is connected to the first bus, and the output end is connected to the fourth bus. The fourth bus can also be connected to a second power distribution module, which, like the power distribution module, can supply power to another set of loads that require uninterrupted power supply.
[0055] In this embodiment, each module of the power distribution device is connected to the busbar using copper bars.
[0056] Each embodiment in the present disclosure is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.
[0057] The above embodiments mainly focus on the differences from other embodiments. However, those skilled in the art should clearly understand that the above embodiments can be used alone or in combination as needed.
[0058] The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.
Claims
1. A power distribution device, characterized in that, The power distribution device includes an uninterruptible power supply module, a centralized bypass module, a control module, a first bus and a second bus; The input end of the uninterruptible power supply module is connected to the first bus, and the output end of the uninterruptible power supply module is connected to the second bus; The first input end of the centralized bypass module is connected to the first bus, the second input end of the centralized bypass module is connected to the second bus, and the output of the centralized bypass module is used to supply power to the load of the power distribution device; The control module is communicatively connected to the centralized bypass module, and the control module is used to control at least one input end of the centralized bypass module to operate.
2. The power distribution device according to claim 1, characterized in that, The uninterruptible power supply module includes at least one uninterruptible power supply unit, the control module is communicatively connected to each uninterruptible power supply unit, and the control module obtains the operating state of the uninterruptible power supply unit based on the communication connection.
3. The power distribution device according to claim 1, characterized in that, A first switch and a second switch are respectively arranged at the first input end and the second input end of the centralized bypass module, the control module controls the first input end to operate by closing the first switch, and the control module also controls the second input end to operate by closing the second switch.
4. The power distribution device according to claim 1, wherein A first switch and a second switch are respectively arranged at the first input end and the second input end of the centralized bypass module, and the centralized bypass module is also provided with a first key for controlling the opening and closing of the first switch and a second key for controlling the opening and closing of the second switch; The first key and the second key are in a locked state; The control module controls the first input end to operate by releasing the locked state of the first key, and the control module controls the second input end to operate by releasing the locked state of the second key.
5. The power distribution device according to claim 1, characterized in that, The power distribution device further includes a third bus and a power distribution module, the output end of the centralized bypass module and the power distribution module are respectively connected to the third bus; The power distribution module is used to distribute power to the load of the power distribution device.
6. The power distribution device according to claim 5, characterized in that, The control module is connected to the third bus, and the control module is powered through the third bus.
7. The power distribution device according to claim 1, characterized in that, The power distribution device further includes: an incoming line bus-tie module and a transformer module, and the first bus is connected to an external power system through the incoming line bus-tie module and the transformer module.
8. The power distribution device according to claim 1, characterized in that, The power distribution device further includes an emergency incoming line module, the output end of the emergency incoming line module is connected to the first bus, and the input end of the emergency incoming line module is connected to an emergency power supply.
9. The power distribution device according to claim 2, wherein Controlling at least one input end of the centralized bypass module to operate based on the device state of the uninterruptible power supply module includes: When all the uninterruptible power supply units are in a normal state, controlling the second input end to operate; When at least one of the uninterruptible power supply units is in a fault state, controlling the first input end to operate, and after the first input end operates, controlling the second input end to stop operating; When all uninterruptible power supply units in the fault state are converted to the normal state, control the second input terminal to operate, and after the second input terminal operates, control the first input terminal to stop operating.
10. The power distribution device according to claim 2, characterized in that, The control module is further configured to: When any one of the uninterruptible power supply units is in the fault state, set all the uninterruptible power supplies to the static bypass state; and When all the uninterruptible power supply units in the fault state are converted to the normal state and the second input terminal operates, set all the uninterruptible power supply units to the operating state.