CN217335097U

CN217335097U - Power supply management system

Info

Publication number: CN217335097U
Application number: CN202122892537.1U
Authority: CN
Inventors: 李逸勇; 李小龙
Original assignee: Anker Innovations Co Ltd
Current assignee: Anker Innovations Co Ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-08-30
Anticipated expiration: 2031-11-18

Abstract

The utility model provides a power supply management system, it includes energy storage equipment, and the electricity is connected to energy storage equipment's a plurality of consumer in parallel, acquires a plurality of consumer's actual power consumption parameter's collection unit, receives the user input unit of the expectation power consumption parameter of a plurality of consumer of user's input to and one-level controller and a plurality of second grade controller. The primary controller is electrically connected to the energy storage device and controls the energy storage device to start or stop discharging; the plurality of secondary controllers are respectively and electrically connected between the energy storage device and each of the plurality of electric devices and control the on-off of a circuit from each of the plurality of electric devices to the energy storage device, and the primary controller is in communication connection with the plurality of secondary controllers. Thus, the power supply management unit can achieve independent single-point control of a plurality of electric devices and adjust distribution of power supply based on variable power demand.

Description

Power supply management system

Technical Field

The utility model relates to an electric power tech field, concretely relates to power supply management system.

Background

In the existing energy management technology, the control of power supply is not enough to allow the distributed energy to meet the power consumption requirement of the load end, which easily triggers the protection mechanism of the power supply end, affects the power consumption experience of the load end, and may even damage the components of the power supply end or the circuit connection between the components and the load end.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content of the present application does not imply any attempt to define the essential features and characteristics of the claimed solution, nor does it imply any attempt to determine the scope of the claimed solution.

To at least partially solve the above problem, an aspect of the present invention provides a power supply management system, including:

an energy storage device storing power from an electrical power source;

a plurality of powered devices electrically connected in parallel with the energy storage device;

the acquisition unit acquires actual power utilization parameters of the plurality of power utilization equipment;

a user input unit which receives a user input of desired power consumption parameters of the plurality of power consumption devices;

the primary controller is electrically connected to the energy storage device and controls the energy storage device to start or stop discharging; and

a plurality of secondary controllers electrically connected between the energy storage device and each of the plurality of electric devices, respectively, and controlling on/off of a circuit from each of the plurality of electric devices to the energy storage device, and

the primary controller is in communication connection with the plurality of secondary controllers.

According to the power supply management system, independent single-point control over a plurality of electric equipment is achieved through connection of a plurality of secondary controllers and related circuits, and communication connection between the primary controller and the secondary controllers can effectively provide a hardware basis for adjusting a power supply strategy based on variable power consumption requirements. Meanwhile, the sensing units such as the acquisition unit and the user input unit are adopted, so that power supply management based on power consumption requirements can be more pertinently implemented according to actual conditions, and the accuracy of power supply management is improved.

Optionally, the primary controller and the plurality of secondary controllers each have a communication interface, the communication interface includes at least one of a Wi-Fi module, a bluetooth module, a ZigBee module, and an infrared module, and/or the communication interface includes at least one of a signal line communication module and a power line carrier communication module.

According to the power supply management system, the connection between the primary controller and the secondary controller can be more free, or the signal transmission between the primary controller and the secondary controller is more reliable.

Optionally, the primary controller sends a power supply signal to the plurality of secondary controllers through the communication interface, the power supply signal including power supply power of each of the plurality of electrical devices,

the secondary controller also has a power regulating device to operate the respective plurality of powered devices at the supply power.

According to the power supply management system, based on the power regulation function of the secondary controller, the total power of the plurality of electric devices is not greater than the rated discharge power of the energy storage device, so that the energy storage device can be prevented from being overloaded, and the plurality of electric devices can be stably supplied with power.

Optionally, the primary controller sends a power supply signal to the plurality of secondary controllers through the communication interface, the power supply signal including a start time of each of the plurality of electric devices,

the plurality of secondary controllers also have switching devices to electrically connect the respective plurality of powered devices to the energy storage device at the activation time.

According to the power supply management system of this scheme, can realize the wrong peak of a plurality of consumer and start based on the secondary controller to avoid energy storage equipment to transship for a short time, with the assurance energy storage equipment still can supply electric power to a plurality of consumer steadily at power consumption peak hour.

Optionally, the user input unit further has:

a receiver to receive actual electricity usage parameters from the acquisition unit,

a memory for storing said actual electricity usage parameter, an

A display to display the actual power usage parameter and the desired power usage parameter input by the user.

According to the power supply management system, the received actual power utilization parameters can be conveniently referred when the user inputs data, and the user can visually see the determined expected power utilization parameters and the adjustable range of the power utilization equipment, so that reasonable selection can be made.

Optionally, the actual power usage parameter acquired by the acquisition unit includes a power curve and an average power of each of the plurality of power consumers, where the power curve includes at least one of start power and peak power.

According to the power supply management system, the random extreme condition which is possibly generated actually is considered, and the typical rule which usually exists in power utilization is also considered, so that the truth and the accuracy of the reference data can be guaranteed to the maximum extent, and meanwhile, the subsequent calculation processing is facilitated. Therefore, through the actual power consumption parameter of gathering the consumer, optimized the power supply of power supply end effectively to the actual power consumption demand to user's power consumption experience has been promoted.

Optionally, the electrical power source comprises a grid, and

the energy storage device also has an inverter to enable the energy storage device to switch between a state of receiving power from the grid and a state of supplying power to the grid.

According to the power supply management system of this aspect, the bidirectional energy transfer between the grid power and the energy storage device power can be realized by switching the two states, and thus, the power fluctuation of the power source can be suppressed and the energy use efficiency can be improved.

Optionally, the power source further comprises a distributed power source including a photovoltaic power generation device.

According to the power supply management system, the distributed power supply with large fluctuation can be more effectively utilized.

Optionally, the primary controller is configured as a remote control device.

According to the power supply management system of this scheme, can supply power the management in the distance, make the utility model discloses a power supply management system's use scene is more extensive.

Optionally, the remote control is coupled to the user input unit.

According to the power supply management system of the scheme, the overall structure of the power supply management system can be simpler.

Drawings

The following drawings of the embodiments of the present invention are provided as a part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings there is shown in the drawings,

fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

fig. 2 is a schematic structural diagram of a modified embodiment of the present invention.

Description of reference numerals:

10. energy storage device

12. One-level controller

14. Inverter with a voltage regulator

16. User input unit

18. Acquisition unit

20. Electric equipment

22. Two-stage controller

30. Electric power source

32. Electric network

34. Distributed power supply

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.

In the following description, a detailed structure will be presented for a thorough understanding of the embodiments of the present invention. It is apparent that the implementation of the embodiments of the invention is not limited to the specific details known to a person skilled in the art.

According to the utility model discloses a main aspect provides a power supply management system, has especially made the improvement to the module composition and the relation of connection that are used for power supply control, has consequently optimized the power supply mode of system to can satisfy user's power consumption demand.

Referring first to fig. 1, the utility model discloses a power supply management system includes energy storage device 10 and consumer 20, and consumer 20 is provided with a plurality ofly, and is connected with energy storage device 10 electricity parallelly. As the name implies, the energy storage device 10 is capable of storing power from the power source 30 for supply to the plurality of consumers 20. The power source 30 of the energy storage device 10 may be a power grid 32 (see fig. 2), for example, by connecting the energy storage device 10 to mains; the power source 30 of the energy storage device 10 may also be a distributed power source 34 (see fig. 2), such as a solar/photovoltaic power plant, a wind power plant, a tidal power plant, or the like. To better utilize power from power source 30, energy storage device 10 also has inverter 14 to enable energy storage device 10 to both receive power from grid 32 or distributed power source 34 when energy is insufficient and to supply power to grid 32 when energy is abundant, i.e., to enable bidirectional energy transfer between grid 32 power and energy storage device 10 power by switching between these two states. This can suppress the power fluctuation of the power source 30, and improve the energy use efficiency.

The utility model discloses a power supply management system still includes acquisition unit 18, and acquisition unit 18 can acquire a plurality of consumer 20's actual power consumption parameter to as the reference of power supply management. In a preferred embodiment, power management relates to power allocation, whereby the actual power usage parameters acquired by the acquisition unit 18 include a power curve and an average power for each powered device 20, the power curve including at least one of start-up power, peak power, or both. The start power is a power at an instant when a certain electric device 20 is turned on in a circuit, and the peak power is a maximum power that is reached in a unit time after the electric device 20 is started, and both are generally larger than a rated power that the electric device 20 can stably output for a long time. The average power is an average value of a power curve of the electric device 20 over time from the start to the shutdown, and obviously, the start power and the peak power are generally larger than the average power of the electric device 20. In this embodiment, the acquisition unit 18 may employ a conventional power sensor, for example.

By collecting real-time power consumption parameters such as starting power and peak power, the real and accurate reference data are ensured to the maximum extent by considering the random extreme condition which may occur in practice; on the other hand, by collecting statistical indexes of average power relative to a certain power utilization period, typical rules usually existing during power utilization are also considered, and subsequent calculation processing is facilitated. Therefore, the collection of these actual power utilization parameters allows the power supply strategy of the power supply terminal to be optimized in a targeted manner according to the individual condition of the power utilization device 20, so that the actual power utilization requirements can be better met, and the power utilization experience of the user can be improved.

The utility model discloses a power supply management system still includes user input unit 16, and user input unit 16 can receive user input's a plurality of consumer 20's expectation power consumption parameter to as the reference of power supply management. As an example, the user input unit 16 may include a physically contactable user input interface, such as a keyboard, a mouse, a touch panel, and the like. As another example, the user input unit 16 may not include a physically contactable user input interface, but receive an input of a user through a voice recognition input, an image recognition input, or the like. In a preferred embodiment where power management involves power allocation, the desired power usage parameter may be a user desired power at which a particular powered device 20 is operating. In an example embodiment, the desired power usage parameter may be selected from a value of an average power of the corresponding power consumer 20. Furthermore, the desired power usage parameter may also be selected from the power rating of the powered device 20 or any other suitable power value.

To this end, the user input unit 16 preferably has a receiver and a memory to receive the actual electricity usage parameters from the acquisition unit 18 and store them in the memory, so as to facilitate the comparison by the user at the time of selection. Preferably, the user input unit 16 may also have a display to display selectable power usage parameters (e.g., actual power usage parameters as a control) and desired power usage parameters ultimately determined by the user on the display. In one possible embodiment, the power usage input unit may also have a processor to display on a display the rated discharge power of the energy storage device 10 minus a margin of the determined desired power usage parameter (here power). In this way, the user can visually see the desired power usage parameters of the powered device 20 that he or she has determined and the adjustable range, thereby facilitating the user to make a reasonable choice. Preferably, the processor is further configured such that a user cannot input a value greater than an available margin of rated discharge power of energy storage device 10 to avoid malfunction due to an unreasonable input.

The utility model discloses a power supply management system still includes the secondary controller 22 that is used for controlling the primary controller 12 of energy storage device 10 and is used for controlling consumer 20. Referring to fig. 1, the primary controller 12 is electrically connected to the energy storage device 10, and has a function of starting or stopping the discharge of the energy storage device 10. As with the electrical devices 20, the secondary controller 22 is also provided in plurality and is electrically connected between the energy storage device 10 and each of the plurality of electrical devices 20, specifically to an output of the energy storage device 10 and an input of each of the plurality of electrical devices 20, respectively. The secondary controllers 22 respectively control the on/off of the circuits from the consumers 20 to the energy storage device 10. In particular, the primary controller 12 may be communicatively coupled to a plurality of secondary controllers 22. Thus, at the level of the primary controller 12, a "one-to-many" control can be realized; while at the level of the secondary controller 22, a "point-to-point" control can be achieved. In this way, control of the power management system for the user equipment may be made convenient and flexible.

Through the structure, according to the utility model discloses a power supply management unit has realized the independent single-point control to a plurality of consumer 20 with the help of a plurality of secondary controller 22 and relevant circuit connection, consequently can be effectively for providing the hardware basis based on variable power consumption demand adjustment power supply strategy. Meanwhile, the power supply management system has a simple structure, and sensing units such as the acquisition unit 18 and the user input unit 16 are also included, so that the accuracy of power supply management can be improved.

Specifically, the primary controller 12 and the secondary controller 22 have a communication interface to transmit a power supply signal. Wherein the two can communicate in a wireless manner, for example, the communication interface of the primary controller 12 and the communication interface of the secondary controller 22 can include a Wi-Fi module, a bluetooth module, a ZigBee module, an infrared module, etc., so as to make the connection between the primary controller 12 and the secondary controller 22 more free. The two controllers can also communicate in a wired manner, for example, the communication interface of the primary controller 12 and the communication interface of the secondary controller 22 can include a signal line communication module and a power line carrier communication module, etc., so as to make the signal transmission between the primary controller 12 and the secondary controller 22 more reliable.

In alternative embodiments, the acquisition unit 18 may be communicatively coupled to the primary controller 12 and/or a plurality of secondary controllers 22. That is, the primary controller 12 or the plurality of secondary controllers 22 receive actual electricity usage parameters from the collection unit 18 via the communication interface. The user input unit 16 may be communicatively coupled to the primary controller 12 and/or the plurality of secondary controllers 22. That is, the primary controller 12 or the plurality of secondary controllers 22 receive the desired electricity usage parameter from the user input unit 16 through the communication interface. By means of the communication interface, signal transmission can be directly carried out among all the parts, so that the management operation of the power supply management system is more convenient.

As an example embodiment of the primary controller 12 being communicatively coupled to a plurality of secondary controllers 22, the primary controller 12 sends a power supply signal to the secondary controllers 22 via a communication interface. In particular, the power supply signal for at least one of the plurality of powered devices 20 may be different from the power supply signal for the other powered devices 20. That is, the primary controller 12 may purposely send different power supply signals to different powered devices 20. Correspondingly, the plurality of secondary controllers 22 may receive the power supply signal from the primary controller 12 through the communication interface and control the supply of power to the respective plurality of consumers 20 according to the power supply signal. Based on such point-to-point control structure, the purpose of supplying power for different electric devices 20 is further achieved.

In a preferred embodiment, the primary controller 12 also includes a remote control device. Consequently, can supply power management in the distance, make the utility model discloses a power management system's use scene is more extensive. More preferably, this remote control may be coupled to the user input unit 16. Since the user input unit 16 itself includes a processor, a memory, a display, and the like, the overall structure of the power supply management system is made simpler. In this case, the user input unit 16 may be in the form of a terminal device, such as a mobile phone, tablet, computer, or the like. Therefore, the operation and running state monitoring of the power supply management system can be facilitated.

It is also mentioned above that the acquisition unit 18 may be a conventional power sensor. In the alternative, however, the detection unit 18 may also be formed by the energy storage device 10, a secondary controller 22 and the associated circuit. In short, when the energy storage device 10 is discharged, only the circuit of the secondary controller 22 is kept on, and the actual power consumption of the electric device 20 corresponding to the secondary controller 22 can be obtained. Therefore, the structure of the power supply management system can be further simplified.

The following exemplifies a power supply signal ultimately used to control the supply of power to the plurality of consumers 20.

As mentioned above, in a preferred embodiment where power management involves power distribution, both the actual power usage parameter and the desired power usage parameter are power. Thus, the power supply signal may include the power supply of each powered device 20. The secondary controller 22 may have a power regulating device to operate the respective plurality of powered devices 20 at the respective supply power. In conjunction with the above-described selection range of the desired power usage parameter, the total power of the plurality of power consumers 20 is not greater than the rated discharge power of the energy storage device 10 based on the power adjustment function of the secondary controller 22, so that the energy storage device 10 may be prevented from being overloaded, thereby enabling stable power supply to the plurality of power consumers 20.

The power signal may also include a start time of each of the plurality of powered devices 20. In this embodiment, secondary controller 22 has switching devices to electrically connect the respective consumer 20 to energy storage device 10 at the respective start-up time. In this case, the power supply signal for at least one of the plurality of electric devices 20 is different from the power supply signal for the other electric devices 20 in that the start time of at least one electric device 20 is different from the start time of the other electric devices 20, that is, the start of each electric device 20 is performed by starting at least one electric device 20 in advance or in a delayed manner. It will be appreciated that this avoids the start-up peak of many powered devices 20 being intensively started with greater power, thereby avoiding a momentary overload of energy storage device 10. Furthermore, different start-up times generally also mean different times of occurrence of peak power, so that it is also possible to avoid peak power peaks, in which many consumers 20 are operated at peak power per unit of time, and thus also to avoid short-term overloading of energy storage device 10. In summary, through the various electronic devices of the secondary controller 22 for controlling the electrical equipment 20, the power supply mode of the energy storage device 10 can be optimized more effectively according to the power demand of the electrical equipment 20, so as to improve the power supply stability of the power supply management system.

The basic process of generating the supply signal will be further exemplified below.

In the first example, the power value of the desired power consumption parameter may be simply used as the power supply power of each of the plurality of power consumption devices 20, wherein the power supply is not supplied when the power value is zero; in addition, it is default that a plurality of consumers 20 are started simultaneously. That is, the power supply signal may be a desired power input by the user, or the power supply signal may be determined according to the related information from the user input unit 16.

In the second example, in addition to or instead of the first example, the received starting powers in the actual power usage parameters of the multiple power consumers 20 may be compared and sorted according to magnitude, and then the difference between the two adjacent starting powers may be calculated. When the difference is greater than zero, the start-up time to start the higher powered consumer 20 is delayed by a time period T1 for each increase in the difference by n. In this manner, the power consuming apparatus 20 is started later as the starting power is larger. That is, the power supply signal may also be a start time determined from the relevant information of the acquisition unit 18.

In a third example, in addition to or instead of the first example, the peak power of the received actual power consumption parameter of the powered device 20 may be compared with the average power, and the difference between the peak power and the average power may be calculated. Similarly, the start-up time to start the higher powered device 20 is delayed by a time period T2 for each increase m in the difference. As described above, the electric device 20 is started later as the peak power jump increases. That is, the power supply signal may also be a start time determined from the relevant information of the acquisition unit 18.

It will be appreciated that the above are only a few possible examples of generating the supply signal, and that the supply signal may of course also be generated according to processes other than the examples described above. For example, the power supply signal may be a desired power input by the user to superimpose a desired start time, so that the power supply signal may be determined according to the related information from the user input unit 16. Alternatively, the power supply signal may be a power supply signal that superimposes a power consumption expected according to the relevant information from the user input unit 16 on the start time determined according to the start power and the peak power of the acquisition unit 18. Therefore, the power supply signal can be generated according to the actual power utilization parameter and the expected power utilization parameter. In other embodiments not listed, the powering signal may also be generated based on other suitable parameters sensed.

In addition, although some of the consumers 20 may be delayed to start due to the start time in the power supply signal, the time periods T1 and T2 are small, so that the user does not feel the delay obviously, and thus the power supply stability of the energy storage device 10 is improved while the user's good power consumption experience is maintained.

In conclusion, through a plurality of secondary control ware 22 to a plurality of consumer 20's independent control and the communication connection between primary controller 12 and the secondary control ware 22, the utility model discloses can effectively solve and be difficult to satisfy the not enough of power consumption demand among the prior art. And, the utility model discloses a power supply management system has still integrated acquisition unit 18 and user input unit 16 to can more pertinence implement the power supply management based on the power consumption demand according to actual conditions.

In the above-described embodiment, only the energy storage device 10 supplies power to the plurality of electric devices 20. However, in the modified embodiment shown in fig. 2, the electric power source 30 may be electrically connected to a plurality of electric devices 20 and supply electric power to the plurality of electric devices 20. In conjunction with the charging and discharging states of the energy storage device 10, it can be understood that when the energy storage device 10 is short of energy, the energy storage device 10 no longer supplies power to the plurality of electric devices 20, but only the power source 30 supplies power to the plurality of electric devices 20, and the energy storage device 10 receives power from the power source 30 through the inverter 14 to be charged. When the energy storage device 10 is energy-rich, the energy storage device 10 may no longer receive power from the power source 30, may supply power to the plurality of electric devices 20, and may selectively transmit power to the power source 30 (grid 32) through the inverter 14 to perform discharging. Preferably, the charge-discharge state of the energy storage device 10 may be switched according to the remaining capacity thereof, for example, when the remaining capacity of the energy storage device 10 is in the range of 10% -90%, or 20% -80%, the energy storage device 10 discharges to supply power to the plurality of power consumption devices 20. This makes it possible to suppress power fluctuation of the power source 30 by the energy storage device 10, thereby improving the efficiency of energy use.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, appearing herein, may mean either that one element is directly attached to another element, or that one element is attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. It will be appreciated by those skilled in the art that many more modifications and variations are possible in light of the above teaching and are intended to be included within the scope of the invention.

Claims

1. A power management system, comprising:

an energy storage device storing power from an electrical power source;

2. The power management system of claim 1, wherein the primary controller and the plurality of secondary controllers each have a communication interface comprising at least one of a Wi-Fi module, a bluetooth module, a ZigBee module, and an infrared module, and/or the communication interface comprises at least one of a signal line communication module and a power line carrier communication module.

3. The power management system of claim 2, wherein the primary controller sends a power signal to the plurality of secondary controllers via the communication interface, the power signal comprising a power supply power for each of the plurality of powered devices,

4. The power management system of claim 2, wherein the primary controller sends a power signal to the plurality of secondary controllers via the communication interface, the power signal including a start time of each of the plurality of powered devices,

the plurality of secondary controllers also have switching devices to complete the electrical connection of the respective plurality of powered devices to the energy storage device at the activation time.

5. The power supply management system according to claim 1, wherein the user input unit further has:

a memory for storing said actual electricity usage parameter, an

6. The power management system of claim 5, wherein the actual power usage parameters obtained by the collection unit include a power curve and an average power for each of the plurality of power consumers, the power curve including at least one of a startup power and a peak power.

7. The power management system of claim 1, wherein the power source comprises a power grid, and wherein the power source is a power grid

8. The power management system of claim 7, wherein the power source further comprises a distributed power source comprising photovoltaic power generation.

9. The power management system of claim 1, wherein the primary controller is configured as a remote control device.

10. The power management system of claim 9, wherein the remote control is coupled to the user input unit.