CN218867973U - Power supply control system - Google Patents
Power supply control system Download PDFInfo
- Publication number
- CN218867973U CN218867973U CN202223132297.6U CN202223132297U CN218867973U CN 218867973 U CN218867973 U CN 218867973U CN 202223132297 U CN202223132297 U CN 202223132297U CN 218867973 U CN218867973 U CN 218867973U
- Authority
- CN
- China
- Prior art keywords
- switch
- power supply
- energy storage
- incoming line
- control unit
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model relates to a power supply control field provides a power supply control system, and this system includes: the system comprises a plurality of incoming line switches, an energy storage device and a control device; each incoming line switch is connected with each load circuit through a bus, the control device is connected with each load circuit through a branch switch, the energy storage device is connected with the bus, and the control device is also connected with the energy storage device; every way inlet wire switch is used for controlling the break-make of commercial power supply respectively, controlling means is used for switching inlet wire switch and detection inlet wire switch's state, and according to state control whether energy memory inserts as stand-by power supply the generating line. The utility model discloses a controlling means control energy memory has avoided having a power failure and the risk of unable timely power supply as stand-by power supply, has improved power supply system's reliability.
Description
Technical Field
The utility model relates to a power supply control field particularly, relates to a power supply control system.
Background
With the increasing modernization degree of people's production and life in China, the demand and the dependence degree of people on electric power are multiplied, and the requirement on the quality of electric energy is stricter, therefore, a plurality of incoming switches are usually arranged at a power supply of a dual-power supply station room, and a standby power supply automatic switching (called ' spare power automatic switching ' for short) device is used at the same time.
In the current Power supply System, when all the incoming switches are powered off, the energy storage device also quits working, and at this time, if the energy storage device is needed to be used as a backup Power supply to supply Power to the load, and in order to ensure that the backup automatic switching device works normally, the operation mode of a Power Conversion System (PCS) in the energy storage device needs to be manually adjusted, so that the operation workload is large, and the Power supply interruption accident is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power supply control system can regard energy memory as stand-by power supply, has avoided having a power failure and the risk of unable timely power supply, has improved power supply system's reliability.
The utility model provides a technical scheme:
the utility model provides a power supply control system, which comprises a plurality of inlet switches, an energy storage device and a control device; each incoming line switch is connected with each load circuit through a bus, the control device is connected with each load circuit through a branch switch, the energy storage device is connected with the bus, and the control device is also connected with the energy storage device;
every way inlet wire switch is used for controlling the break-make of commercial power supply respectively, controlling means is used for switching inlet wire switch and detection inlet wire switch's state, and according to state control whether energy memory inserts as stand-by power supply the generating line.
In one embodiment, the control device comprises a spare power automatic switching unit and a spare power supply control unit; the spare power automatic switching unit and the spare power supply control unit are connected with each load circuit through the branch switches, and are also connected with the energy storage device;
the standby power supply control unit is used for detecting the state of the incoming line switch and controlling whether the energy storage device is used as a standby power supply or not according to the state.
In one embodiment, the energy storage device comprises an energy storage converter and a battery management system, the battery management system comprises a battery pack, the standby power supply control unit is connected with the energy storage converter, the energy storage converter is connected with the battery management system through a CAN (controller area network) interface, the standby power supply control unit is used for providing an opening signal for the energy storage converter, the energy storage converter is used for controlling charging and discharging of the battery pack, and the battery management system is used for monitoring the residual electric quantity and the working state of the battery pack.
In one embodiment, the standby power supply control unit and the energy storage converter are connected by a dry contact connection mode, so that the standby power supply control unit provides the switching-on signal for the energy storage converter; or;
and a network communication mode is adopted between the standby power supply control unit and the energy storage converter, so that the standby power supply control unit sends the switching-in signal to the energy storage converter.
In one embodiment, the number of the incoming switches corresponds to the number of incoming circuits of the mains supply power supply one by one; the plurality of incoming line switches comprise a first incoming line switch, a second incoming line switch and a third incoming line switch, and the first incoming line switch, the second incoming line switch and the third incoming line switch are connected with each load circuit through the buses.
In one embodiment, the power supply control system further comprises a tie switch comprising a first tie switch, a second tie switch, and a third tie switch;
the first interconnection switch is arranged between the first inlet switch and the second inlet switch, the second interconnection switch is arranged between the second inlet switch and the third inlet switch, and the third interconnection switch is arranged between the first inlet switch and the third inlet switch.
In one embodiment, when the first incoming line switch has a power failure, the spare power automatic switching unit controls the first interconnection switch to be switched on and switches the second incoming line switch to control a commercial power supply to supply power; when the second inlet switch has power failure, the spare power automatic switching unit controls the second contact switch to be switched on and switches the first inlet switch to control a commercial power supply to supply power; when the first incoming line switch and the second incoming line switch are powered off, the spare power automatic switching unit controls the third network switch to be switched on and switches the third incoming line to control a commercial power supply to supply power.
In an embodiment, when the standby power control unit detects that only one incoming line switch has not been powered off and the battery management system monitors that the remaining power of the battery pack is full, the standby power control unit controls the energy storage device to perform a standby state as a standby power.
In one embodiment, when the standby power control unit detects that all incoming line switches are powered off, the standby power control unit confirms the real-time load of the load circuit and compares the real-time load with the preset capacity of the energy storage converter, if the real-time load exceeds the preset capacity, the standby power control unit controls the on-off of the switches according to a preset load shedding strategy, so that after the real-time load does not exceed the preset capacity, the standby power control unit controls the energy storage device to enter an island operation mode, and the energy storage device supplies power to all the load circuits.
In one embodiment, the control device and the branch switch are connected in a dry contact connection mode, so that the control device controls the on-off of the switch; or;
and the control device and the branch switch adopt a network communication mode so that the control device controls the on-off of the switch.
The utility model provides a power supply control system's beneficial effect is:
when the states of the incoming line switch are all power failure, the energy storage device can be controlled to be used as a standby power supply to supply power for the load circuit through the control device, the risk that power cannot be supplied in time due to power failure is avoided, and the reliability of a power supply system is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a power supply control system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a control device according to an embodiment of the present invention.
Description of the main element symbols:
110-incoming line switch, 120-energy storage device, 130-control device, 131-spare power automatic switching unit and 132-spare power supply control unit.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and for simplicity of description, and do not indicate or imply that the equipment or components that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1, the present embodiment provides a power supply control system, including: a plurality of incoming switches 110, an energy storage device 120 and a control device 130; each incoming line switch 110 is connected with each load circuit through a bus, the control device 130 is connected with each load circuit through a branch switch, the energy storage device 120 is connected with the bus, and the control device 130 is further connected with the energy storage device 120.
Each line of the incoming line switch 110 is used for controlling the on-off of a mains supply, and the control device 130 is used for switching the incoming line switch 110 and detecting the state of the incoming line switch 110, and controlling whether the energy storage device 120 is connected to the bus as a standby power supply or not according to the state.
It will be appreciated that the bus bars connect the various current carrying branch circuits in the power supply system together to form a common path that serves to collect, distribute and transfer electrical energy. Because the bus bears great heating and electrodynamic effect in the operation of the power supply system, the bus material, the sectional shape and the sectional area must be reasonably selected to meet the requirements of safe and economic operation, for example, a copper bus, an aluminum bus, a steel bus and the like can be used, and the specific use type can be selected according to the actual situation, which is not limited herein.
The branch switch in this embodiment all can adopt dry contact, a passive electrical switch, and this branch switch only has two kinds of states of closure and disconnection, does not have polarity between two contacts, can exchange, and easy to assemble reduces engineering cost and engineer's requirement, has improved the engineering speed that power supply system built.
The incoming line switch 110 is a main switch for connecting a mains supply to a load circuit, and generally provides various necessary protections for the whole load circuit, and after the incoming line switch 110 is closed, the mains supply supplies power to each load circuit. And energy storage device 120 connects the generating line to make inlet wire switch 110 closed back, the commercial power supply also can be for energy storage device 120 power supply, consequently, under the circumstances that commercial power supply can normally supply power, energy storage device 120 carries out normal charge-discharge, and at this moment, energy storage device 120 is equivalent to a load circuit. The control device 130 is further connected to the energy storage device 120, and the control device 130 can not only switch different incoming line switches, but also detect states of the incoming line switches 110, for example, the states include power off and power off, therefore, the control device can control the energy storage device 120 to serve as a standby power supply according to the states of the incoming line switches 110 and when all the incoming line switches 110 have power off.
In one embodiment, the control device 130 includes a backup power automatic switching unit 131 and a backup power control unit 132; the backup power automatic switching unit 131 and the backup power control unit 132 are both connected to the load circuits through the branch switches, and the backup power automatic switching unit 131 and the backup power control unit 132 are also both connected to the energy storage device 120.
The backup power automatic switching unit 131 is configured to switch other incoming line switches 110 to control the commercial power supply to supply power when one of the incoming line switches 110 has a power failure, and the backup power control unit 132 is configured to detect a state of the incoming line switch 110 and control whether the energy storage device 120 is used as a backup power according to the state.
It can be understood that, in the scenario of dual power supply, the backup power automatic switching unit 131 is equivalent to a backup power automatic switching device, and has all functions of the backup power automatic switching device. It should be noted that the standby power control unit 132 may be disposed in an independent device, or may also be used as an extended function of the backup power automatic switching unit 131, so as to save hardware space. In this embodiment, the spare power automatic projection unit 131 may adopt a line rear projection mode or a bus couple rear projection mode.
Referring to fig. 2, in an embodiment, the energy storage device 120 includes an energy storage converter and a battery management system, the battery management system includes a battery pack, the standby power control unit is connected to the energy storage converter, the energy storage converter is connected to the battery management system through a CAN interface, the standby power control unit is configured to provide an input signal to the energy storage converter, the energy storage converter is configured to control charging and discharging of the battery pack, and the battery management system is configured to monitor a remaining capacity and a working state of the battery pack.
Specifically, a Power Conversion System (PCS) can control the charging and discharging processes of the battery pack, perform ac/dc Conversion, and directly supply Power to a load circuit without a Power grid. The energy storage converter comprises a DC/AC bidirectional converter, a control unit and the like. Through the energy storage converter, the protective charging and discharging of the battery pack can be realized, and the operation safety of the battery pack is ensured. A BMS (Battery Management System), also called a Battery caregiver or a Battery manager, is mainly used to intelligently manage and maintain each Battery in a Battery pack, prevent the Battery from being overcharged and overdischarged, prolong the service life of the Battery, and monitor the state of the Battery. The battery management system comprises a control module, a display module, a wireless communication module, electrical equipment, a battery pack for supplying power to the electrical equipment, a collection module for collecting battery information of the battery pack and the like, wherein the battery information comprises but is not limited to residual electric quantity, working state and the like.
In one embodiment, the standby power control unit 132 is connected to the energy storage converter by a dry-end connection, so that the standby power control unit 132 provides the on signal to the energy storage converter.
It will be appreciated that the dry contact is a passive electrical switch having only two states, closed and open, and that the two contacts have no polarity and are interchangeable; therefore, the standby power control unit 132 is connected to the energy storage converter by dry contact connection, which is equivalent to a passive electrical switch disposed between the standby power control unit 132 and the energy storage converter. Specifically, the input signal is an input signal, and the energy storage converter controls charging and discharging of the battery pack according to the input signal.
In particular, when the standby power control unit 132 and the energy storage converter are connected by using a dry contact connection method, it indicates that the standby power control unit 132 and the energy storage converter have a physical connection relationship.
In another embodiment, a network communication manner is adopted between the standby power control unit 132 and the energy storage converter, so that the standby power control unit 132 sends the open signal to the energy storage converter.
Specifically, when network communication is used between the standby power control unit 132 and the energy storage converter, for example, broadcast transmission or point-to-point transmission. At this time, the backup power control unit 132 and the energy storage converter may not be physically connected, and the energy storage converter receives the input signal transmitted from the backup power control unit 132.
In one embodiment, the number of the incoming switches 110 is in a one-to-one correspondence with the number of incoming circuits of the mains power supply; the plurality of incoming line switches 110 include a first incoming line switch, a second incoming line switch and a third incoming line switch, and the first incoming line switch, the second incoming line switch and the third incoming line switch are all connected with each load circuit through the bus.
According to the provisions of the national standard GB50174 of electronic information system machine room design Specifications, data centers are divided into three levels A, B and C, specifically, one incoming line switch corresponds to one line of commercial power, generally, in a dual-power supply system, the A-level data center adopts a power supply system corresponding to three lines of commercial power, and the B-level data center adopts a power supply system corresponding to two lines of commercial power; each line of commercial power is connected with a load circuit through a bus. The number of the incoming line switches 110 corresponds to the number of the mains supply lines, and therefore, the setting of the incoming line switches 110 needs the number of the mains supply lines meeting the actual requirements. And when the state of the incoming line switch 110 is power failure, it means that the corresponding utility power path is power failure, for example, the first incoming line switch is power failure, which means that the first utility power path is power failure.
In one embodiment, the power supply control system further comprises a tie switch comprising a first tie switch, a second tie switch and a third tie switch.
The first interconnection switch is arranged between the first incoming switch and the second incoming switch, the second interconnection switch is arranged between the second incoming switch and the third incoming switch, and the third interconnection switch is arranged between the first incoming switch and the third incoming switch.
It should be noted that, the a-level data center requires to be provided with an interconnection switch, while the B-level data center may be provided with or without an interconnection switch, specifically, the interconnection switch is usually used in dual power supply, and when one of the power supplies fails, the load of the failed power supply is transferred to the other power supply through the interconnection switch, so that the power supply reliability can be improved. Meanwhile, after partial buses have faults, the contact switch can isolate the faulted parts, and the stability and the reliability of a power supply system are guaranteed.
It will be appreciated that the data associated with the switches corresponds to the number of mains lines. In a normally running power supply system, the interconnection switch is always in an opening state, both sides of the interconnection switch are electrified, if one side of the interconnection switch breaks down, the fault is isolated after detection, and the recovery power supply of a downstream non-fault section of a fault point is realized by closing of the interconnection switch.
In one embodiment, when the first incoming line switch has a power failure, the automatic backup power switching unit 131 controls the first interconnection switch to be switched on and switches the second incoming line switch to control the mains supply to supply power; when the second incoming line switch has a power failure, the spare power automatic switching unit 131 controls to switch on by using the second contact switch and switches the first incoming line switch to control a commercial power supply to supply power; when the first incoming line switch and the second incoming line switch are powered off, the backup power automatic switching unit 131 controls to use the third network switch to switch on and switches the third incoming line to control the mains supply power supply to supply power.
In this embodiment, regard first inlet wire switch and second inlet wire switch as normal power supply, third inlet wire switch is as reserve power supply, consequently, only when first inlet wire switch and second inlet wire switch all have a power failure, just can launch third inlet wire switch. And, according to the characteristics of inlet switch, can know that first inlet switch, second inlet switch and third inlet switch do not have the quasi-synchronization function. Therefore, the present embodiment detects the state of the incoming line switch 110 through the standby power control unit 132.
Furthermore, in an embodiment, when the standby power control unit 132 detects that only one of the incoming switches 110 is not powered off and the battery management system monitors that the remaining battery capacity of the battery pack is full, the standby power control unit 132 controls the energy storage device 120 to perform a standby state as a standby power.
Under normal conditions, that is, when two or more incoming line switches 110 are not powered off, energy storage device 120 is in a normal mode, that is, operates in a charging and discharging mode. When the standby power control unit 132 detects that only one incoming line switch 110 has not been powered off, the energy storage device 120 is in the standby power mode, that is, the energy storage device 120 is preparing for being used as a standby power at this time, and meanwhile, the remaining power of the battery pack needs to be monitored, and if the remaining power is insufficient or not full, the energy storage device 120 is fully charged and then in the standby power mode.
In an embodiment, when the standby power control unit 132 detects that all the incoming line switches have power failure, the standby power control unit 132 determines a real-time load of the load circuit, and compares the real-time load with a preset capacity of the energy storage converter, if the real-time load exceeds the preset capacity, the standby power control unit 132 controls on and off of the switches according to a preset load shedding policy, so that after the real-time load does not exceed the preset capacity, the standby power control unit 132 controls the energy storage device to enter an island operation mode, so that the energy storage device supplies power to each load circuit.
And the standby power control unit 132 controls the energy storage device 120 to be used as a standby power when the normal power supply and the standby power supply are both off. Specifically, when all the incoming line switches 110 have power failure, all the incoming line switches 110 need to be cut off, the real-time load of each load circuit is determined, and if the real-time load does not exceed the preset capacity of the energy storage converter, the energy storage device is directly controlled to enter an island operation mode, so that the energy storage device 120 supplies power to each load circuit. If the real-time load exceeds the preset capacity of the energy storage converter, the branch switch needs to be disconnected, so as to cut off part of the load circuit, so that the energy storage device 120 can be used as a standby power supply to supply power to the rest of the load circuit.
The load circuit is divided into a general load and an important load, and the general load is preferably cut off. The preset capacity of the energy storage converter is generally configured according to 1.2 times of the preset load, for example, the important load is 200kW, and the energy storage converter with the capacity of 250kW is generally recommended to be configured.
In one embodiment, the control device 130 and the branch switch are connected by a dry junction connection method, so that the control device 130 controls on/off of the switch; or, a network communication mode is adopted between the control device and the branch switch, so that the control device 130 controls the on/off of the switch.
It will be appreciated that if dry-contact wiring is used, the bypass switch is a dry contact, i.e., a passive electrical switch. If a network communication mode is adopted, the branch switch can be a passive electric switch, a button switch, a rotary switch and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A power supply control system, comprising: the system comprises a plurality of incoming line switches, an energy storage device and a control device; each incoming line switch is connected with each load circuit through a bus, the control device is connected with each load circuit through a branch switch, the energy storage device is connected with the bus, and the control device is also connected with the energy storage device;
every way inlet wire switch is used for controlling the break-make of commercial power supply respectively, controlling means is used for switching inlet wire switch and detection inlet wire switch's state, and according to state control whether energy memory inserts as stand-by power supply the generating line.
2. The power supply control system according to claim 1, wherein the control device includes a backup power supply control unit and a backup power supply control unit; the spare power automatic switching unit and the spare power supply control unit are connected with each load circuit through the branch switches, and are also connected with the energy storage device;
the standby power supply control unit is used for detecting the state of the incoming line switch and controlling whether the energy storage device is used as a standby power supply or not according to the state.
3. The power supply control system according to claim 2, wherein the energy storage device comprises an energy storage converter and a battery management system, the battery management system comprises a battery pack, the backup power supply control unit is connected with the energy storage converter, the energy storage converter is connected with the battery management system through a CAN interface, the backup power supply control unit is used for providing an on-off signal for the energy storage converter, the energy storage converter is used for controlling charging and discharging of the battery pack, and the battery management system is used for monitoring the remaining capacity and the working state of the battery pack.
4. The power supply control system of claim 3, wherein said standby power control unit is connected to said energy storage converter by a dry contact connection, such that said standby power control unit provides said on signal to said energy storage converter; or;
and a network communication mode is adopted between the standby power supply control unit and the energy storage converter, so that the standby power supply control unit sends the switching-in signal to the energy storage converter.
5. The power supply control system of claim 3, wherein the number of the incoming switches corresponds to the number of incoming circuits of the mains power supply one by one; the plurality of incoming line switches comprise a first incoming line switch, a second incoming line switch and a third incoming line switch, and the first incoming line switch, the second incoming line switch and the third incoming line switch are all connected with each load circuit through the buses.
6. The power supply control system of claim 5 further comprising tie switches, the tie switches comprising a first tie switch, a second tie switch, and a third tie switch;
the first interconnection switch is arranged between the first inlet switch and the second inlet switch, the second interconnection switch is arranged between the second inlet switch and the third inlet switch, and the third interconnection switch is arranged between the first inlet switch and the third inlet switch.
7. The power supply control system according to claim 6, wherein when the first incoming line switch fails, the spare power automatic switching unit controls the first interconnection switch to be switched on and switches the second incoming line switch to control a commercial power supply to supply power; when the second incoming line switch is powered off, the spare power automatic switching unit controls the second contact switch to be switched on and switches the first incoming line switch to control a commercial power supply to supply power; when the first incoming line switch and the second incoming line switch are powered off, the spare power automatic switching unit controls the third network switch to be switched on and switches the third incoming line to control the commercial power supply to supply power.
8. The power supply control system according to claim 5, wherein when the standby power supply control unit detects that only one of the incoming switches is not powered off and the battery management system monitors that the remaining power of the battery pack is full, the standby power supply control unit controls the energy storage device to perform a standby state as a standby power supply.
9. The power supply control system according to claim 5 or 8, wherein when the standby power control unit detects that all the incoming line switches are powered off, the standby power control unit confirms a real-time load of the load circuit and compares the real-time load with a preset capacity of the energy storage converter, and if the real-time load exceeds the preset capacity, the standby power control unit controls on and off of the switch according to a preset load shedding strategy, so that after the real-time load does not exceed the preset capacity, the standby power control unit controls the energy storage device to enter an island operation mode, and the energy storage device supplies power to each load circuit.
10. The power supply control system according to claim 1, wherein the control device and the branch switch are connected by a dry contact connection method, so that the control device controls on/off of the switch; or;
and the control device and the branch switch adopt a network communication mode so that the control device controls the on-off of the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223132297.6U CN218867973U (en) | 2022-11-24 | 2022-11-24 | Power supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223132297.6U CN218867973U (en) | 2022-11-24 | 2022-11-24 | Power supply control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218867973U true CN218867973U (en) | 2023-04-14 |
Family
ID=87356515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223132297.6U Active CN218867973U (en) | 2022-11-24 | 2022-11-24 | Power supply control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218867973U (en) |
-
2022
- 2022-11-24 CN CN202223132297.6U patent/CN218867973U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130099574A1 (en) | System and method for multiple power supplies | |
| CN111431269A (en) | Data center power supply system and corresponding control method | |
| CN211605342U (en) | Base station retired battery intelligent management system | |
| CN208571667U (en) | A kind of extension transformer substation communication equipment power-on time device | |
| CN111987792A (en) | Power supply apparatus and power supply method thereof | |
| CN218867973U (en) | Power supply control system | |
| CN103036304B (en) | Alternating current power supply system for substation | |
| CN116667482A (en) | Battery device and power supply system using DC input | |
| CN110867946A (en) | Alternating current-direct current hybrid power supply integrated power supply | |
| CN115912441A (en) | PCS system and control method thereof | |
| CN112124132B (en) | Non-vehicle charging and discharging system in grid-connected mode and isolated grid mode and charging pile | |
| CN205004828U (en) | Substation supervision system based on photovoltaic energy storage automatic switch -over | |
| CN211046560U (en) | Automatic switching alarm device between independent UPS of transformer substation | |
| CN202260612U (en) | AC power supply system used in transformer station | |
| CN112798970A (en) | Remote capacity checking system for storage battery of transformer substation | |
| CN217087556U (en) | Power supply device and data center | |
| CN112803546A (en) | Energy storage brake-separating protection system and method | |
| CN110707809A (en) | Automatic switching alarm device between independent UPS of transformer substation | |
| CN108879866A (en) | Transformer substation communication equipment extends power supply unit | |
| CN219477624U (en) | Scram control device and group charging system | |
| CN217427761U (en) | Automatic access system of standby charger | |
| CN215221763U (en) | Energy storage separating brake protection system | |
| CN218276066U (en) | Independent control device of isolated energy storage battery pack and energy storage power station | |
| CN218102701U (en) | Intelligent subway signal power supply screen switching device | |
| CN217824324U (en) | Redundant direct current UPS power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |