WO2023116385A1 - 电源设备识别方法、电子设备及储能设备 - Google Patents

电源设备识别方法、电子设备及储能设备 Download PDF

Info

Publication number
WO2023116385A1
WO2023116385A1 PCT/CN2022/136004 CN2022136004W WO2023116385A1 WO 2023116385 A1 WO2023116385 A1 WO 2023116385A1 CN 2022136004 W CN2022136004 W CN 2022136004W WO 2023116385 A1 WO2023116385 A1 WO 2023116385A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
voltage
preset
input
power
Prior art date
Application number
PCT/CN2022/136004
Other languages
English (en)
French (fr)
Inventor
幸云辉
张宏韬
陈熙
Original Assignee
深圳市正浩创新科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳市正浩创新科技股份有限公司 filed Critical 深圳市正浩创新科技股份有限公司
Publication of WO2023116385A1 publication Critical patent/WO2023116385A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
    • H02J7/00041—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors in response to measured battery parameters, e.g. voltage, current or temperature profile
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters

Definitions

  • the present application relates to the technical field of charging identification, and in particular to a power supply equipment identification method, electronic equipment and energy storage equipment.
  • the power interface may be a DC constant voltage source charging interface, a photovoltaic charging interface, or a hybrid interface of a DC constant voltage source and photovoltaics. If a DC constant voltage source charging interface and a photovoltaic charging interface are set up on the electronic equipment, it will increase the hardware cost; if a hybrid interface of the DC constant voltage source and photovoltaic is set up on the electronic equipment, it is necessary for the software program to be able to automatically identify and access the interface. Mix the power types of the interface, and enable the corresponding charging mode according to the recognized power type.
  • the related technology cannot accurately identify the type of power source connected to the power port, and misjudgment of the type of the power device is prone to occur, thereby enabling a wrong charging mode, resulting in poor charging effect of the electronic device.
  • the program will not be able to track the maximum power point, resulting in waste of solar energy; if the DC constant voltage source connected to the power interface is misidentified as a photovoltaic power source , will cause the voltage and current to oscillate.
  • a power supply device identification method an electronic device, and an energy storage device are provided.
  • the present application provides a method for identifying a power supply device, which is applied to an electronic device, the electronic device includes a power interface, and the power interface is used to connect to the power supply device.
  • the method includes:
  • the input power parameters change as the target current changes, and the input power parameters include input voltage, input current, input power, or input voltage change difference;
  • the present application also provides an electronic device, the electronic device includes a power interface, and the power interface is used to connect the power device; the electronic device also includes a processor, a memory, and a A data bus connecting and communicating between the processor and the memory, wherein a computer program executable by the processor is stored on the memory, and when the computer program is executed by the processor, the above-mentioned The steps of the power supply device identification method.
  • the present application further provides an energy storage device, the energy storage device includes a power interface, and the power interface is used to connect the power supply device; the energy storage device also includes a processor, a memory, and a device for realizing A data bus connecting and communicating between the processor and the memory, wherein a computer program executable by the processor is stored on the memory, and when the computer program is executed by the processor, the following Steps of the power supply equipment identification method described above.
  • FIG. 1 is a schematic flowchart of steps of a method for identifying a power supply device provided by an embodiment of the present application.
  • Fig. 2 is a schematic flowchart of steps of a method for identifying a power supply device provided by another embodiment of the present application.
  • FIG. 3 is a schematic diagram of the I-U characteristic curve of the power supply device provided by this embodiment.
  • Fig. 4 is a schematic diagram of the integral function curve of the photovoltaic power supply provided by this embodiment.
  • FIG. 5 is a schematic flowchart of steps of another method for identifying a power supply device provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of steps of a method for identifying a power supply device provided by another embodiment of the present application.
  • FIG. 7 is a schematic flowchart of steps of a method for identifying a power supply device according to yet another embodiment of the present application.
  • FIG. 8 is a schematic flowchart of implementing the method for identifying a power supply device provided by this embodiment.
  • FIG. 9 is a schematic structural block diagram of an electronic device provided by an embodiment of the present application.
  • Embodiments of the present application provide a power device identification method, an electronic device, and a storage medium.
  • the power supply device identification method can be applied to electronic devices, and the electronic devices can be devices such as mobile phones, tablet computers, notebook computers, desktop computers, personal digital assistants, and wearable devices; the electronic devices can also be energy storage devices , the energy storage device includes, for example, a battery module, and the battery module includes one or more electric energy storage units, such as one or more batteries; the electronic equipment can also be household air conditioners, outdoor air conditioners, washing machines, water heaters and other electrical appliances , the electrical appliance has a power interface through which it can receive a DC power supply, an AC power supply or a photovoltaic power supply as a working power supply.
  • the working voltage of the electrical appliance is AC voltage
  • the electrical appliance can be converted through the built-in inverter circuit, voltage stabilization circuit, etc. to meet the electricity demand.
  • the above situation can be set as required during the specific implementation process.
  • FIG. 1 is a schematic flowchart of steps of a method for identifying power supply equipment provided by an embodiment of the present application.
  • the method for identifying power supply equipment includes:
  • the electronic device obtains the open-circuit voltage at its power interface, so as to perform subsequent steps according to the open-circuit voltage.
  • the open-circuit voltage at the power interface of the electronic device may be obtained through a voltage detection circuit connected to the power interface.
  • the electronic device when the electronic device judges that the open circuit voltage satisfies the preset working condition, it will obtain the target current value and send the target current value to the power supply device. Specifically, after the electronic device detects that a power supply device is connected to the power interface, and obtains the open-circuit voltage to complete the judgment, it will obtain the target current value from the preset storage location.
  • the target current value can be preset or based on the The value of the open circuit voltage is calculated. In this embodiment, the target current value is preset.
  • the electronic device sends the target current value to the power supply device, and the way for the electronic device to send the target current value includes wired transmission or wireless transmission.
  • the electronic device and the power device automatically establish a wireless connection, and when the target current value needs to be sent to the power device, the electronic device internal
  • the wireless transmission module sends the target current value to the power supply device through the wireless communication protocol; in the case of wired transmission, the electronic device completes a wired connection with the power supply device through the power interface, and the electronic device sends the target current value to the power supply device through the power interface. the power supply. Whether it is through wired transmission or wireless transmission, when the power supply device receives the target current value, it will output the target current according to the target current value, and the target current output by the power supply device will be transmitted to the electronic device through the power interface .
  • the electronic device obtains the input power parameters at its power interface, the input power parameters include input voltage, input current, input power or input voltage change difference, and the input voltage or input current can be directly detected by the corresponding voltage
  • the input power can be obtained by calculating the product of the input voltage and the input current, and the input voltage change difference can be determined by the difference between the input voltage obtained by the current sampling and the input voltage obtained at the previous sampling moment.
  • the step of judging whether the input power parameter of the electronic device meets the preset judging condition includes: if the input current is greater than or equal to a preset current threshold, the input power is greater than or equal to a preset power threshold, or the If the input voltage difference is greater than or equal to a preset voltage threshold, it is determined that the input electric energy parameter satisfies the preset judgment condition; if the input current is less than a preset current threshold, the input power is less than a preset power threshold and the If the input voltage difference is less than a preset voltage threshold, it is determined that the input power parameter does not satisfy the preset judgment condition.
  • the electronic device When the electronic device judges that the input power parameter does not meet the preset judgment condition, it will adjust the target current value according to the preset adjustment strategy, and send the adjusted target current value to the power supply device, and return to step S102 to execute A step of sending a target current value to the power supply device, so that the power supply device outputs a target current according to the target current value.
  • adjusting the target current value specifically includes: increasing the target current value to a preset adjustment current value, and recording the number of adjustments; the power supply device identification method further includes: when the input power parameter does not meet the preset When judging the conditions, it is judged whether the number of adjustments reaches the preset total number of adjustments; if the number of preset adjustments reaches the preset total number, then according to the open circuit voltage and the input voltage, determine the voltage change information at the power interface; If the total number is adjusted, the target current value is adjusted, and the execution returns to the step of sending the target current value to the power supply device in step S102, so that the power supply device outputs a target current according to the target current value.
  • the electronic device determines the power source type of the power device according to the voltage change information determined in step S105.
  • the power source type includes a DC constant voltage source and a photovoltaic power source.
  • the electronic device judges the power supply device according to a preset integral threshold, and when the voltage change integral value is greater than or equal to the preset integral threshold value, it is determined that the power supply device is a photovoltaic power supply; when the voltage change integral value is less than the The preset integration threshold is to determine that the power supply device is a DC constant voltage source.
  • This application obtains the open circuit voltage at the power interface, sends the target current value to the power supply device when the open circuit voltage meets the preset working voltage condition, and determines the power supply type of the power supply device by making judgments based on the input power parameters at the power supply interface According to the present application, the judgment of the input power parameters can improve the accuracy of identification of the power supply equipment, so as to avoid starting the wrong charging mode and improve the charging effect of the electronic equipment.
  • the electronic device is an energy storage device and the power interface is a charging interface for further description.
  • the energy storage device includes a charging interface, and the charging interface is directly or indirectly connected to the energy storage device.
  • the power supply module is connected to the power supply module, and the power supply module can be connected to the power supply equipment through the charging interface, so as to receive the electric energy input by the power supply equipment for charging.
  • the charging interface is directly connected to the battery module means that there is no other functional circuit between the charging interface and the battery module, and the charging interface is indirectly connected to the battery module means that the charging interface is connected to the battery module It also includes functional circuits such as an inverter circuit and a voltage stabilizing circuit.
  • FIG. 2 is a schematic flowchart of steps of a method for identifying a power supply device provided by an embodiment of the present application.
  • the power supply device identification method includes steps S201 to S205.
  • Step S201 acquiring the open circuit voltage at the charging interface.
  • the energy storage device includes a charging interface, and the charging interface is used to connect a power supply device, so that the power supply device can charge the energy storage device, and the power supply device includes a photovoltaic power supply and a DC constant voltage source.
  • whether the charging interface is connected to the power supply device can be determined through the open circuit voltage, and if there is no open circuit voltage at the charging interface, it proves that the power supply device is not connected. For example, the open-circuit voltage at the charging interface is obtained to determine whether a power supply device is connected to the charging interface.
  • the energy storage device obtains the open circuit voltage at the charging interface, and the open circuit voltage is the terminal voltage of the energy storage device in an open circuit state, that is, the open circuit voltage is charged when the energy storage device is electrically connected to the power supply device through the charging interface. input voltage at the interface.
  • the charging interface of the energy storage device is a photovoltaic charging interface, a DC constant voltage source charging interface, or a charging interface shared by a DC constant voltage source and a photovoltaic power source, such as XT60, XT90 and the like. It can be understood that the charging interface of the energy storage device may also be another type of charging interface, which is not specifically limited in this embodiment.
  • the energy storage device includes a voltage detection circuit, through which the open circuit voltage U ocv at the charging interface is collected, and the open circuit voltage U ocv detected by the voltage detection circuit is sent to the processor of the energy storage device for The processor of the energy storage device performs subsequent operations according to the open circuit voltage U ocv .
  • Step S202 when the open circuit voltage meets the preset working voltage condition, send the target current value to the power supply device, so that the power supply device outputs the target current according to the target current value.
  • the energy storage device After the energy storage device obtains the open circuit voltage at the charging interface, it determines whether the open circuit voltage meets the preset operating voltage condition. When the open circuit voltage meets the preset operating voltage condition, the energy storage device sends the target current value to the power supply device through the charging interface. , so that the power supply device outputs the target current according to the target current value.
  • the preset operating voltage condition can be set according to the actual situation of the energy storage device, for example, the preset operating voltage condition is that the open circuit voltage U ocv is less than the maximum operating voltage Vmax, and the open circuit voltage U ocv is greater than the minimum operating voltage Vmin.
  • Vmin is the lowest working voltage
  • Vmax is the highest working voltage
  • the energy storage device when the open circuit voltage meets the preset operating voltage condition, the energy storage device generates a current adjustment instruction according to the preset target current value I_tag, and sends the current adjustment instruction to the power supply device, so that the power supply device receives After the current adjustment instruction, the target current consistent with the target current value I_tag is output according to the target current value I_tag in the current adjustment instruction.
  • the target current value I_tag is set for the target value of a single external power supply, and has no memory function, so as to meet the adaptability of different power supply devices.
  • the target current value is selected from an array composed of multiple current values according to the order of arrangement, and the current values in the array are arranged according to a first preset rule.
  • the first preset rule is, for example, multiple A current value equipotential presents an increasing or decreasing trend.
  • the energy storage device sends a current adjustment instruction including a target current value to the power supply device according to a second preset rule, the second preset rule is, for example, an interval of a preset time or meeting a preset condition, the first preset rule and the second preset rule Two preset rules can be set according to the actual situation.
  • the voltage change difference of the input voltage is less than the preset voltage threshold; in subsequent steps, after the preset condition is met again, the energy storage device resets the target current value, and the reset target current value I_
  • Step S203 acquiring the input current and input voltage at the charging interface, where the input current and input voltage at the charging interface change with the change of the target current.
  • the energy storage device After the power supply device outputs the target current according to the target current value, the energy storage device obtains the input current and input voltage at the charging interface. It should be noted that the input current and input voltage at the charging interface change as the target current changes. When the target current increases, the input current and input voltage increase with the increase of the target current, and when the target current decreases, the input current and input voltage decrease with the decrease of the target current. It should be noted that the power supply device supplies power to the energy storage device, and the power supply device outputs current to the energy storage device according to the target current value. However, due to problems such as transmission lines, the actual output current received by the energy storage device is not Like the target current, the current received by the energy storage device may be less than the target current.
  • the energy storage device includes a current detection circuit and a voltage detection circuit
  • the input current at the charging interface is collected through the current detection circuit
  • the input voltage at the charging interface is collected through the voltage detection circuit
  • the processor of the energy storage device obtains the current
  • the input current collected by the detection circuit and the input voltage collected by the voltage detection circuit are used to enable the processor to perform subsequent operations according to the input current and the input voltage.
  • Step S204 when the input current is greater than or equal to the preset current threshold, determine the voltage change information at the charging interface according to the open circuit voltage and the input voltage.
  • the user equipment determines whether the input current is greater than or equal to the preset current threshold, and when the input current is greater than or equal to the preset current threshold, determines the voltage change information at the charging interface according to the open circuit voltage and the input voltage.
  • the voltage change information includes voltage change integral value and/or voltage change trend information
  • the preset current threshold can be set according to the actual situation, for example, the preset current threshold is the maximum current threshold that the charging interface can bear.
  • the voltage change information includes a voltage change integral value; according to the open circuit voltage and the input voltage, determining the voltage change information at the charging interface includes: obtaining a preset equation, and the preset equation is:
  • U error represents the integral value of voltage change
  • U ocv represents the open circuit voltage
  • sum represents the summation operation
  • k represents the number of adjustments of the target current value
  • U(k) represents the input at the charging interface obtained after the kth adjustment Voltage.
  • the voltage change integral value is used to represent the change integral value of the voltage at the charging interface caused by adjusting the target current.
  • the line segment 100 is used to represent the I-U characteristic curve of the DC constant voltage source
  • the line segment 200 is used to represent the I-U characteristic curve of the photovoltaic power source.
  • the integral value of the voltage change calculated according to the above preset equation is the area S of the shaded area, and the area S of the shaded area represents the integral of the voltage drop of the line segment 200 within a certain range of current change. It can be seen that the integral values of voltage changes corresponding to the I-U characteristic curves of different power types are different.
  • the voltage change information may also include voltage change trend information.
  • the voltage change trend information corresponding to the I-U characteristic curve of different power supply types is different.
  • the voltage variation trend of the DC power supply is different from that of the photovoltaic power supply.
  • FIG. 3 it can be known from the line segment 100 that the voltage variation trend information of the DC power supply is constant with the increase of the current; it can be known from the line segment 200 that the voltage variation trend of the photovoltaic power supply is The voltage decreases.
  • Step S205 Determine the power source type of the power supply device according to the voltage change information.
  • the voltage change information includes voltage change integral value and/or voltage change trend information
  • the power type of the power supply device can be determined according to the voltage change information at the charging interface, which can improve the accuracy of power supply device identification.
  • determining the power type of the power supply device according to the voltage change information includes: acquiring a preset integration threshold; and determining the power source type of the power supply device according to the voltage change integration value and the preset integration threshold.
  • the preset integral threshold can be set according to the actual situation.
  • the preset integral threshold is set according to the voltage change integral value corresponding to the I-U characteristic curve of the photovoltaic power supply, for example, to model the photovoltaic characteristics of the photovoltaic power supply analysis, and make a reasonable distinction between the I-U characteristic curve of the photovoltaic power source and the I-U characteristic curve of other power sources, so as to select the appropriate integral value as the preset integral threshold, which can avoid the interference between the photovoltaic power source and other power sources such as DC constant voltage sources. Misjudgment.
  • determining the power source type of the power supply device according to the voltage change information includes: obtaining a preset integral threshold; judging whether the voltage change integral value is greater than or equal to the preset integral threshold; if the voltage change integral value is greater than or equal to the preset If the integration threshold is lower than the integral threshold, it is determined that the power supply equipment is a photovoltaic power supply; if the integral value of the voltage change is less than the preset integration threshold, it is determined that the power supply equipment is a DC constant voltage source.
  • the charging interface is a hybrid charging interface of a DC constant voltage source and a photovoltaic power source, it is necessary to determine whether the power type of the power supply device connected to the charging interface is a photovoltaic power source or a DC constant voltage source.
  • the integral threshold is preset, it is determined that the power supply is a photovoltaic power supply, and when the integral value of the voltage change is less than the preset integral threshold, it is determined that the power supply is a DC constant voltage source.
  • obtaining the preset integration threshold includes: obtaining the current light intensity and the current ambient temperature; using the current light intensity and the current ambient temperature as search conditions, searching for an integration threshold that satisfies the search condition in the integration threshold mapping table, and integrating The integral threshold corresponding to each light intensity and each ambient temperature is stored in the threshold mapping table; the integral threshold that meets the search condition is found as the preset integral threshold.
  • the integral threshold mapping table can be obtained through multiple experiments according to actual conditions such as light intensity and ambient temperature in the area where the power supply equipment is located. Through the above steps, the preset integral threshold can be obtained quickly, so as to improve the precision of the preset integral threshold, thereby improving the accuracy of identification of the power supply equipment.
  • the energy storage device acquires an integral function used to characterize the voltage change of the photovoltaic power supply; acquires the current light intensity and current ambient temperature, and determines a preset integral threshold according to the integral function, current light intensity, and current ambient temperature.
  • the integral function is:
  • V MP represents the integral function of the voltage change
  • V REF represents the voltage of the photovoltaic power supply operating at the maximum power
  • I rr represents the current light intensity
  • I REF represents the light intensity under the standard environment
  • ⁇ represents the preset temperature Coefficient
  • T represents the current ambient temperature
  • T REF represents the ambient temperature under the standard environment.
  • the photovoltaic power source may include a plurality of PV photovoltaic components, such as photovoltaic panels, and the above temperature coefficient ⁇ is determined by the material of the photovoltaic panels. It is easy to know that there are differences in the I-U characteristic curves of photovoltaic power sources under different light intensities and ambient temperatures, and the preset integral thresholds related to photovoltaic power sources can be determined by the integral function of current light intensity, current ambient temperature and voltage changes, which can improve the identification of The power source type of the power supply device is the accuracy of the photovoltaic power source.
  • the abscissa represents the light intensity W/m 2
  • the ordinate represents the preset integration threshold U error , in volts.
  • the line segment 310 is used to characterize the integral function of the voltage change of the photovoltaic power source at an ambient temperature of 50 degrees
  • the line segment 320 is used to characterize the integral function of the voltage change of the photovoltaic power source at an ambient temperature of 0 degrees
  • the line segment 330 is used to represent the integral function of the photovoltaic power source at a temperature of 25 degrees Integral function of voltage change at ambient temperature.
  • a target integral function is determined from a plurality of preset integral functions of voltage changes; and a preset integral threshold U error corresponding to the current light intensity is determined according to the target integral function.
  • the preset integral threshold can be calculated, so that the DC constant voltage source and the photovoltaic power source can be identified according to the calculated preset integral threshold.
  • the integral function used to characterize the voltage change of the photovoltaic power supply is determined by modeling and analyzing the photovoltaic characteristics of the photovoltaic power supply.
  • the I-U characteristic curve function of the photovoltaic power supply is:
  • I sc represents the short-circuit current of the photovoltaic power supply
  • V oc represents the open-circuit voltage of the photovoltaic power supply
  • I MP represents the voltage value of the photovoltaic power supply at the maximum power point
  • V MP represents the current value of the photovoltaic power supply at the maximum power point
  • C 1 and C 2 represent intermediate variables.
  • the integral function of the power change of the photovoltaic power source is affected by the light intensity and the ambient temperature, and the calculation formula of the influencing factors is as follows:
  • P MP represents the integral function of power change
  • P REF represents the maximum power of the photovoltaic power supply under the standard environment
  • I rr represents the current light intensity
  • I REF represents the light intensity under the standard environment
  • ⁇ represents the preset temperature coefficient
  • T represents The current ambient temperature
  • T REF represents the ambient temperature under the standard environment.
  • FF represents a preset fill factor, and the fill factor can be determined by the manufacturer.
  • the formula for calculating the preset integral threshold U error is obtained as:
  • a corresponding charging mode is enabled according to the recognized power type of the power supply device.
  • the identified power supply type of the power supply device is a DC constant voltage source interface
  • the DC charging mode is turned on to realize the stable charging of the direct current DC in the DC charging mode;
  • the identified power supply type of the power supply device is photovoltaic power supply, turn on MPPT (Maximum Power Point Tracking, maximum power point tracking) charging mode to achieve maximum power charging in MPPT charging mode.
  • MPPT Maximum Power Point Tracking, maximum power point tracking
  • the power supply equipment identification method obtained by the above embodiment obtains the open circuit voltage at the charging interface; when the open circuit voltage meets the preset operating voltage condition, sends the target current value to the power supply equipment, so that the power supply equipment outputs the target current according to the target current value ; Obtain the input current and input voltage at the charging interface, where the input current and input voltage at the charging interface change with the change of the target current; when the input current is greater than or equal to the preset current threshold, according to the open circuit voltage and input voltage , determine the voltage change information at the charging interface; determine the power source type of the power supply device according to the voltage change information. Determining the power source type of the power supply device through the voltage change information at the charging interface can improve the accuracy of identification of the power supply device, thereby avoiding starting a wrong charging mode and improving the charging effect of the energy storage device.
  • FIG. 5 is a schematic flowchart of steps of another method for identifying a power supply device provided in an embodiment of the present application.
  • the power supply device identification method includes steps S301 to S306.
  • Step S301 acquiring the open circuit voltage at the charging interface.
  • Detect the open-circuit voltage at the charging interface to determine whether there is a power supply connected to the charging interface. If there is an open-circuit voltage at the charging interface, it proves that a power supply device is connected, and the open-circuit voltage at the charging interface can be obtained through the voltage detection circuit.
  • Step S302 when the open circuit voltage satisfies the preset working voltage condition, send the target current value to the power supply device, so that the power supply device outputs the target current according to the target current value.
  • the preset operating voltage condition is that the open circuit voltage U ocv is less than the maximum operating voltage Vmax, and the open circuit voltage U ocv is greater than the minimum operating voltage Vmin.
  • the energy storage device when it is determined that the open circuit voltage satisfies the preset operating voltage condition, the energy storage device sends a target current value to the power supply device, so that the power supply device outputs a target current to the energy storage device according to the target current value.
  • the power input device is, for example, a charger
  • the target current value may be carried in the current adjustment instruction, so that the charger outputs a current consistent with the target current value according to the current adjustment instruction.
  • Step S303 acquiring the input current and the input voltage at the charging interface, where the input current and the input voltage at the charging interface change with the change of the target current.
  • the power supply device outputs the target current to the energy storage device according to the target current value, and the energy storage device obtains the input current and input voltage at the charging interface. There is a difference between the target current and the input current, and the input current and input voltage change with the change of the target current .
  • the target current value sent by the energy storage device to the power supply device can be adjusted and changed according to the actual situation.
  • the input current and input voltage will change with the change of the target current. Specifically, when the target current increases, the input current and the input voltage increase with the increase of the target current, and when the target current decreases, the input current and the input voltage decrease with the decrease of the target current.
  • Step S304 judging whether the input current is greater than or equal to a preset current threshold.
  • the preset current threshold is, for example, the maximum current threshold that the charging interface can bear. If the input current is less than the preset current threshold, it indicates that the input current at the charging interface is within the current range that the charging interface can withstand; if the input current is greater than or equal to the preset power threshold, it indicates that the input current at the charging interface is within the range that the charging interface cannot bear current range.
  • the preset current threshold can also be set as the maximum current value set in the identification method.
  • Step S305a when the input current is greater than or equal to the preset current threshold, determine the voltage change information at the charging interface according to the open circuit voltage and the input voltage.
  • the voltage change information includes voltage change integral value and/or voltage change trend information, and the voltage change integral value and/or voltage change trend information is beneficial to improve the accuracy of power device type identification.
  • the voltage change integral value and/or voltage change trend information corresponding to different power supply equipment connected to the charging interface are different.
  • the input current is greater than or equal to the preset current threshold, it indicates The input current is in the current range that the charging interface cannot bear, and the integral value of voltage change and/or voltage change trend information at the charging interface can be determined according to the open circuit voltage and the input voltage.
  • Step S305b when the input current is less than the preset current threshold, calculate the input power according to the input current and the input voltage.
  • the input current is less than the preset current threshold, it indicates that the input current at the charging interface is within the current range that the charging interface can withstand.
  • the input power corresponding to the target current of the power supply device can be calculated according to the input current and input voltage, and the input power can be judged. Whether the power is greater than or equal to the preset power threshold.
  • the preset power threshold can be set according to the actual situation of the energy storage device, for example, the preset power threshold is the maximum power threshold that the charging interface can bear.
  • Step S3051 judging whether the input power is greater than or equal to a preset power threshold.
  • step S305a if it is determined that the input power is greater than or equal to the preset power threshold, step S305a will be executed. It should be noted that if the input power is greater than or equal to the preset power threshold, indicating that the input power at the charging interface is within the power range that the charging interface cannot bear, then the aforementioned determination of the voltage at the charging interface based on the open circuit voltage and the input voltage can be performed. Steps to vary the information to improve the accuracy of power device type identification.
  • Step S306 according to the voltage change information, determine the power source type of the power supply device.
  • the voltage change information corresponding to different types of power supply equipment is different.
  • the voltage change information can determine the power supply type of the power supply equipment, improve the accuracy of power supply equipment identification, so that the corresponding charging mode can be turned on according to the identified power supply type, and the charging effect can be improved.
  • step S3051 after determining whether the input power is greater than or equal to a preset power threshold in step S3051 , further includes: step S3052 to step S3053 .
  • Step S3052 if the input power is less than the preset power threshold, calculate the voltage change difference of the input voltage caused by adjusting the target current.
  • the difference in voltage change of the input voltage caused by adjusting the target current can be calculated and the voltage change can be judged Whether the difference is greater than or equal to the preset voltage threshold.
  • the voltage change difference of the input voltage caused by adjusting the target current is the voltage change difference between the target sampling voltage and the sampling voltage at the previous moment, which can be expressed as U(k)-U(k-1).
  • the preset voltage threshold can be set according to the actual situation of the energy storage device, for example, the preset voltage threshold is the absolute value of the maximum tolerable voltage difference that the charging interface can withstand, and the preset voltage threshold can be 1/6 of the open circuit voltage Or a fixed value of 6V.
  • Step S3053 judging whether the voltage change difference is greater than or equal to a preset voltage threshold.
  • step S305a the step of determining the voltage change information at the charging interface, that is, step S305a, so as to improve the accuracy of identifying the type of the power supply device.
  • step S3053 further includes step S3054 after judging whether the voltage change difference is greater than or equal to a preset voltage threshold.
  • Step S3054 if the voltage change difference is less than the preset voltage threshold, adjust the target current value; send the target current value to the power supply device according to the adjusted target current value, so that the power supply device outputs the target current according to the target current value.
  • the target current value is adjusted, and the voltage change difference of the input voltage caused by adjusting the target current can be expressed as U(k)-U(k-1), before adjusting the target current
  • the input voltage is U(k-1)
  • the input voltage after adjusting the target current is U(k)
  • k represents the number of adjustments of the target current value, if k is equal to 1, then the U(0) is the open circuit voltage of the input port Uocv .
  • the target current value is sent to the power supply device according to the adjusted target current value, so that the power supply device outputs the target current according to the target current value, and returns to step S303, so that further Determine the voltage change information at the charging interface, and ensure that the power type of the power supply device can be determined according to the identified voltage change information after adjusting the target current value multiple times, so as to avoid turning on the wrong charging mode and improve the charging effect of the energy storage device .
  • the voltage change difference is less than the preset voltage threshold, it indicates that the voltage change difference at the charging interface is within the tolerance voltage difference range that the charging interface can withstand.
  • increase the preset adjusted current value to obtain the adjusted target current value, and send the adjusted target current value to the power supply device, so that the power supply device outputs the adjusted target current value according to the adjusted target current value .
  • FIG. 8 is a schematic flowchart of a method for identifying a power supply device provided by this embodiment.
  • the power supply device identification method includes:
  • the energy storage device collects the open circuit voltage U ocv at the input port (also called the charging interface);
  • the energy storage device judges whether the open circuit voltage meets the minimum and maximum operating voltage requirements, for example, judges whether the open circuit voltage U ocv is less than the maximum operating voltage Vmax and greater than the minimum operating voltage Vmin;
  • the energy storage device After the energy storage device receives the voltage and current input by the power supply device, it collects the input terminal voltage U(k) and current I(k), where k represents the kth collection;
  • the energy storage device judges whether I(k) is greater than a first threshold (represented by threshold 1 in FIG. 8 ), where the first threshold is, for example, a preset current threshold;
  • the energy storage device calculates the input power U(k)*I(k) at the charging interface, and judges whether the input power U(k)*I(k) is greater than
  • the second threshold (represented by threshold 2 in FIG. 8 ), the second threshold is, for example, a preset power threshold;
  • the energy storage device calculates U error :
  • the third threshold is, for example, a preset voltage threshold
  • the method for identifying a power supply device it is judged whether the input current is greater than or equal to the preset current threshold, whether the input power is greater than or equal to the preset power threshold, and whether the difference between the current and voltage changes
  • the order of execution greater than or equal to the preset current threshold can be set according to actual needs.
  • FIG. 9 is a schematic structural block diagram of an electronic device provided by an embodiment of the present application.
  • the electronic device 300 may be an energy storage device, and the energy storage device includes, for example, a battery module.
  • the battery module includes one or more electric energy storage units, and the electric energy storage units are, for example, one or more batteries.
  • the electronic device 300 may also be devices such as mobile phones, tablet computers, notebook computers, desktop computers, personal digital assistants, and wearable devices.
  • the electronic device 300 includes a processor 302 and a memory 303 connected through a system bus 301, and the electronic device 300 also includes a power interface 304, and the power interface 304 is used to connect a power supply device; wherein, the memory 303 may include Non-volatile storage media and internal memory.
  • Non-volatile storage media can store operating systems and computer programs.
  • the computer program includes program instructions.
  • the processor 302 can be executed to perform any power device identification method.
  • the processor 302 is used to provide computing and control capabilities to support the operation of the entire electronic device 300 .
  • the internal memory provides an environment for running the computer program in the non-volatile storage medium.
  • the processor 302 can execute any power device identification method.
  • the electronic device 300 may also include a network interface, which is used for network communication, such as sending assigned tasks and the like.
  • a network interface which is used for network communication, such as sending assigned tasks and the like.
  • FIG. 9 is only a block diagram of a partial structure related to the solution of this application, and does not constitute a limitation on the electronic device 300 to which the solution of this application is applied.
  • the specific electronic device 300 may include more or fewer components than shown, or combine certain components, or have a different arrangement of components.
  • the processor 302 may be a central processing unit (Central Processing Unit, CPU), and the processor 302 may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the processor 302 is configured to run a computer program stored in a memory, so as to realize each step in the method for identifying a power supply device provided in any one of the above embodiments.
  • the embodiment of the present application also provides a computer-readable storage medium, where one or more computer programs are stored on the computer-readable storage medium, and the one or more computer programs include program instructions, and the program instructions can be One or more processors execute, and the method implemented when the program instructions are executed can refer to various embodiments of the method for identifying a power supply device in this application.
  • the computer-readable storage medium may be an internal storage unit of the electronic device described in the foregoing embodiments, such as a hard disk or a memory of the electronic device.
  • the computer-readable storage medium can also be an external storage device of the electronic device, such as a plug-in hard disk equipped on the electronic device, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD ) card, flash memory card (Flash Card), etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种电源设备识别方法，包括：通过获取电源接口处的开路电压；在开路电压满足预设工作电压条件时，将目标电流值发送给电源设备，以使电源设备根据目标电流值输出目标电流；获取电源接口处的输入电能参数，其中，电源接口处的输入电能参数随目标电流的改变而发生变化；在输入电能参数满足预设判断条件时，确定电源接口处的电压变化信息；根据电压变化信息，确定电源设备的电源类型。

Description

电源设备识别方法、电子设备及储能设备
相关申请的交叉引用
本申请要求于2021年12月22日提交中国专利局、申请号为202111584327.4、发明名称为“电源设备识别方法、电子设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及充电识别的技术领域，尤其涉及一种电源设备识别方法、电子设备及储能设备。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成示例性技术。
为满足用户不同情况下的需求，电子设备往往包括多种类型的电源接口，该电源接口包括充电接口、放电接口或充放电混合接口。例如，电源接口可以是直流恒压源充电接口、光伏充电接口、或者直流恒压源与光伏的混合接口。如果在电子设备上设立直流恒压源充电接口以及光伏充电接口，将造成硬件成本的增加；如果在电子设备上设立直流恒压源与光伏的混合接口，则需要软件程序能够自动识别接入该混合接口的电源类型，并根据识别出的电源类型开启对应的充电模式。
然而，相关技术不能准确地识别接入电源接口的电源类型，容易出现电源设备的类型误判，从而开启错误的充电模式，导致电子设备的充电效果不好。比如，若将与电源接口连接的光伏电源误判成直流恒压源，将导致程序追踪不到最大功率点，造成太阳能的浪费；若将与电源接口连接的直流恒压源误判成光伏电源，将导致电压电流出现震荡。
发明内容
根据本申请的各种实施例，一种电源设备识别方法、电子设备及储能设备。
第一方面，本申请提供一种电源设备识别方法，应用于电子设备，所述电子设备包括电源接口，所述电源接口用于连接所述电源设备，所述方法包括：
获取所述电源接口处的开路电压；
在所述开路电压满足预设工作电压条件时，将目标电流值发送给所述电源设备，以使所述电源设备根据所述目标电流值输出目标电流；
获取所述电源接口处的输入电能参数，其中，所述输入电能参数随所述目标电流的改变而发生变化，所述输入电能参数包括输入电压、输入电流、输入功率或输入电压变化差值；
在所述输入电能参数不满足预设判断条件时，调整所述目标电流值，执行将目标电流值发送给所述电源设备的步骤；
在所述输入电能参数满足所述预设判断条件时，根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息；
根据所述电压变化信息，确定所述电源设备的电源类型。
第二方面，本申请还提供一种电子设备，所述电子设备包括电源接口，所述电源接口用于连接所述电源设备；所述电子设备还包括处理器、存储器以及用于实现所述处理器和所述存储器之间的连接通信的数据总线，其中，所述存储器上存储有可被所述处理器执行的计算机程序，所述计算机程序被所述处理器执行时，以实现如上所述的电源设备识别方法的步骤。
第三方面，本申请还提供一种储能设备，所述储能设备包括电源接口，所述电源接口用于连接所述电源设备；所述储能设备还包括处理器、存储器以及用于实现所述处理器和所述存储器之间的连接通信的数据总线，其中，所述存储器上存储有可被所述处理器执行的计算机程序，所述计算机程序被所述处理器执行时，实现如上述所述的电源设备识别方法的步骤。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更清楚地说明本申请实施例技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一实施例提供的一种电源设备识别方法的步骤流程示意图。
图2是本申请另一实施例提供的一种电源设备识别方法的步骤流程示意图。
图3为实施本实施例提供的电源设备的I-U特性曲线示意图。
图4为实施本实施例提供的光伏电源的积分函数曲线示意图。
图5为本申请实施例提供的另一种电源设备识别方法的步骤流程示意图。
图6为本申请另一实施例提供的电源设备识别方法的步骤流程示意图。
图7为本申请又一实施例提供的电源设备识别方法的步骤流程示意图。
图8为实施本实施例提供的电源设备识别方法的一流程示意图。
图9为本申请实施例提供的一种电子设备的结构示意性框图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
附图中所示的流程图仅是示例说明，不是必须包括所有的内容和操作/步骤，也不是必须按所描述的顺序执行。例如，有的操作/步骤还可以分解、组合或部分合并，因此实际执行的顺序有可能根据实际情况改变。
本申请实施例提供一种电源设备识别方法、电子设备及存储介质。其中，该电源设备识别方法可应用于电子设备器中，该电子设备可以是手机、平板电脑、笔记本电脑、台式电脑、个人数字助理和穿戴式设备等设备；该电子设备也可以为储能设备，储能设备例如包括电池模组，电池模组包括一个或多个电能存储单元，电能存储单元例如为一个或多个电池；该电子设备还可以是家庭空调、户外空调、洗衣机、热水器等电器，该电器具有电源接口，可以通过该电源接口接收直流电源、交流电源或者光伏电源作为工作电源。需要说明的是，当该电器的工作电压为交流电压时，在接入直流电源或者光伏电源后，该电器内部可以通过内置的逆变电路、稳压电路等进行转换，以满足用电需求，上述情况可以在具体实现过程中根据需要进行设置。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
请参照图1，图1为本申请一实施例提供的一种电源设备识别方法的步骤流程示意图，该电源设备识别方法包括：
S101，获取电源接口处的开路电压。
在本步骤中，电子设备获取其电源接口处的开路电压，以根据该开路电压执行后续的 步骤。在本步骤中，电子设备获取其电源接口处的开路电压可以通过与该电源接口连接的电压检测电路获取。
S102，在所述开路电压满足预设工作电压条件时，将目标电流值发送给所述电源设备，以使所述电源设备根据所述目标电流值输出目标电流。
在本步骤中，电子设备在判断该开路电压满足预设工作条件时，将获取目标电流值，将该目标电流值发送给电源设备。具体地，在电子设备检测到该电源接口有电源设备接入，并且获取开路电压完成判断后，将从预设存储位置获取该目标电流值，该目标电流值可以是预先设置，也可是根据该开路电压的值计算得出。在本实施例中，该目标电流值为预先设置。电子设备将该目标电流值发送给该电源设备，电子设备发送该目标电流值的方式包括有线传输或者无线传输的方式。其中，在无线传输的情况下，电子设备和电源设备完成有线连接及握手通讯后，电子设备和电源设备自动建立无线连接，在需要将该目标电流值发送给该电源设备时，电子设备内部的无线传输模块通过无线通讯协议发送该目标电流值给电源设备；在有线传输的情况下，电子设备通过该电源接口与该电源设备完成有线连接，电子设备通过该电源接口将该目标电流值发送给该电源设备。无论是通过有线传输或者无线传输的方式，该电源设备在接收到该目标电流值时，将根据该目标电流值输出目标电流，该电源设备输出的目标电流将通过该电源接口传输给该电子设备。
S103，获取所述电源接口处的输入电能参数，其中，所述输入电能参数随所述目标电流的改变而发生变化，所述输入电能参数包括输入电压、输入电流、输入功率或输入电压变化差值。
在本步骤中，电子设备获取其电源接口处的输入电能参数，该输入电能参数包括输入电压、输入电流、输入功率或输入电压变化差值，该输入电压或输入电流可以直接通过相应的电压检测电路或电流检测电路获取，该输入功率可以通过计算输入电压和输入电流的乘积获取，该输入电压变化差值可以通过当前采样获取的输入电压和上一采样时刻获取的输入电压的差值确定。
S104，在所述输入电能参数不满足预设判断条件时，调整所述目标电流值，执行将目标电流值发送给所述电源设备的步骤。
在本步骤中，电子设备判断该输入电能参数是否满足该预设判断条件的步骤包括：若所述输入电流大于或等于预设电流阈值、所述输入功率大于或等于预设功率阈值、或所述输入电压差值大于或等于预设电压阈值，则确定所述输入电能参数满足所述预设判断条件；若所述输入电流小于预设电流阈值、所述输入功率小于预设功率阈值且所述输入电压差值小于预设电压阈值，则确定所述输入电能参数不满足所述预设判断条件。当电子设备判断该输入电能参数不满足预设判断条件后，将按照预设调整策略调整该目标电流值，并将改调整后的目标电流值发送给该电源设备后，返回执行步骤S102中将目标电流值发送给所述电源设备，以使所述电源设备根据所述目标电流值输出目标电流的步骤。在其他实施例中，调整该目标电流值具体包括：将所述目标电流值增加预设调整电流值，并记录调整次数；该电源设备识别方法还包括:在所述输入电能参数不满足预设判断条件时，判断所述调整次数是否达到预设调整总数；若达到预设调整总数，则根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息；若未达到预设调整总数，则调整所述目标电流值，返回执行步骤S102中将目标电流值发送给所述电源设备，以使所述电源设备根据所述目标电流值输出目标电流的步骤。
S105，在所述输入电能参数满足所述预设判断条件时，根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息。
在本步骤中，若电子设备判断该输入电能参数满足该预设判断条件，则根据该开路电压和输入电压计算该电源接口处的电压变化信息，该电压变化信息包括该电源接口处的电压变化积分值，该电压变化积分值可以通过U error＝U ocv-sum(U(k))/k计算得到，其中， U error表示电压变化积分值，U ocv表示开路电压，sum表示求和运算，k表示目标电流值的调整次数，U(k)表示第k次调整后获取的所述电源接口处的输入电压。
S106，根据所述电压变化信息，确定所述电源设备的电源类型。
在本步骤中，电子设备根据步骤S105确定的电压变化信息确定该电源设备的电源类型，在本实施例中，该电源类型包括直流恒压源和光伏电源。具体地，该电子设备根据一预设积分阈值对电源设备进行判断，当该电压变化积分值大于或者等于该预设积分阈值时，确定该电源设备为光伏电源，当该电压变化积分值小于该预设积分阈值是，确定该电源设备为直流恒压源。
本申请通过获取电源接口处的开路电压，在该开路电压满足预设工作电压条件时将目标电流值发送给电源设备，并根据该电源接口处的输入电能参数进行判断进而确定电源设备的电源类型，通过本申请中对输入电能参数的判断能够提高电源设备识别的准确性，从而避免开启错误的充电模式，提高电子设备的充电效果。
下面，通过图2至图8来对本申请进行进一步地说明。在下述实施例中，以该电子设备为储能设备、该电源接口为充电接口为例进行进一步的说明，该储能设备包括充电接口，该充电接口通过直接或者间接的方式与该储能设备中的电源模组相连接，该电源模组可以通过该充电接口与电源设备相连接，以接收该电源设备输入的电能进行充电。该充电接口直接与该电池模组相连接指的是充电接口与电池模组之间无其他的功能电路，该充电接口间接与该电池模组相连接指的是该充电接口与该电池模组之间还包括逆变电路、稳压电路等功能电路。
请参照图2，图2为本申请一实施例提供的一种电源设备识别方法的步骤流程示意图。
如图2所示，该电源设备识别方法包括步骤S201至步骤S205。
步骤S201、获取充电接口处的开路电压。
其中，储能设备包括充电接口，充电接口用于连接电源设备，以使电源设备给储能设备充电，电源设备包括光伏电源和直流恒压源。
需要说明的是，通过开路电压能够确定充电接口是否与电源设备连接，若充电接口处不存在开路电压，证明电源设备未接入。例如，获取充电接口处的开路电压，以确定是否有电源设备接入到充电接口中。
在一实施例中，储能设备获取充电接口处的开路电压，该开路电压为储能设备在开路状态下的端电压，即该开路电压为储能设备通过充电接口与电源设备电连接时充电接口处的输入电压。
在一实施例中，储能设备的充电接口为光伏充电接口、直流恒压源充电接口、或者直流恒压源与光伏电源共用的充电接口，如XT60、XT90等等。可以理解的，储能设备的充电接口也可以是其他类型的充电接口，本实施例对此不做具体限定。
在一实施例中，储能设备包括电压检测电路，通过电压检测电路采集充电接口处的开路电压U ocv，并将电压检测电路检测到的开路电压U ocv发送至储能设备的处理器，以供储能设备的处理器根据该开路电压U ocv执行后续操作。
步骤S202、当开路电压满足预设工作电压条件时，将目标电流值发送给电源设备，以使电源设备根据目标电流值输出目标电流。
储能设备在获取充电接口处的开路电压之后，确定开路电压是否满足预设工作电压条件，当开路电压满足预设工作电压条件时，储能设备通过该充电接口将目标电流值发送给电源设备，以使电源设备根据目标电流值输出目标电流。
其中，预设工作电压条件可以根据储能设备的实际情况进行设置，例如，预设工作电压条件为开路电压U ocv小于最高工作电压Vmax，且开路电压U ocv大于最低工作电压Vmin。
需要说明的是，由于实际硬件器件不能无限制的耐压，所以需要检测充电接口处的开路电压是否满足器件的工作电压，以确定硬件设备是否工作，即确定开路电压U ocv是否满 足预设工作电压条件：
Vmin＜U ocv＜Vmax；
其中，Vmin为最低工作电压，Vmax为最高工作电压。
在一实施例中，当开路电压满足预设工作电压条件时，储能设备根据预先设定的目标电流值I_tag生成电流调整指令，并将电流调整指令发送至电源设备，以使电源设备在接收到电流调整指令之后，根据电流调整指令中的目标电流值I_tag输出与目标电流值I_tag一致的目标电流。需要说明的是，目标电流值I_tag针对单次外部电源的目标值设定，无记忆功能，从而满足适配不同的电源设备。
在一实施例中，目标电流值是根据排列顺序从多个电流值组成的数组中选取的，数组中的电流值按照第一预设规则进行排列，第一预设规则例如为数组中的多个电流值等势呈递增趋势或递减趋势。进一步的，储能设备按照第二预设规则向电源设备发送包括目标电流值的电流调整指令，第二预设规则例如为间隔预设时间或满足预设条件，该第一预设规则和第二预设规则可根据实际情况进行设置。
示例性的，当开路电压满足预设工作电压条件时，储能设备对目标电流值I_tag进行初始化以对目标电流值I_tag赋值，例如目标电流值I_tag 0＝0；目标电流值初始化后，重新设定目标电流值I_tag 1＝I_tag0+N，并记录重新设定目标电流值I_tag 1的次数k＝1，N为预设调整电流值；在后续步骤中，当满足预设条件后，储能设备重新设定目标电流值I_tag 2＝I_tag 1+N，并记录重新设定目标电流值I_tag 2的次数k＝2，即令k增加1，k＝k+1，预设条件例如为调整目标电流导致的输入电压的电压变化差值小于预设电压阈值；在后续步骤中，再次满足预设条件后，储能设备重新设定目标电流值，重新设定的目标电流值I_tag n＝I_tag n-1+N，并记录重新设定目标电流值I_tag n的次数k＝n，k的最大值例如为100。
步骤S203、获取充电接口处的输入电流和输入电压，其中，充电接口处的输入电流和输入电压随目标电流的改变而发生变化。
电源设备根据目标电流值输出目标电流之后，储能设备获取充电接口处的输入电流和输入电压。需要说明的是，充电接口处的输入电流和输入电压随目标电流的改变而发生变化。当目标电流增大，则输入电流和输入电压随目标电流的增大而增大，当目标电流减小，则输入电流和输入电压随目标电流的减小而减小。需要说明的是，电源设备给储能设备供电，该电源设备根据该目标电流值输出电流给该储能设备，但是因为传输线路等问题，该储能设备实际接收到该电源设备输出的电流并非与该目标电流一样，该储能设备接收到电流可能小于该目标电流。
在一实施例中，储能设备包括电流检测电路和电压检测电路，通过电流检测电路采集充电接口处的输入电流，通过电压检测电路采集充电接口处的输入电压，储能设备的处理器获取电流检测电路采集的输入电流以及电压检测电路采集的输入电压，以使处理器根据该输入电流和输入电压执行后续操作。
在一实施例中，当目标电流值调整之后，储能设备获取充电接口处的输入电流和输入电压。具体地，在该实施例中，储能设备在目标电流值每进行一次调整后，均需要进行输入电流和输入电压的采样及判断，并记录采集到的电压U(k)和电流I(k)，(k＝1..N，k表示目标电流值的调整次数)，以便进行后续处理与计算。
步骤S204、在输入电流大于或等于预设电流阈值时，根据开路电压和输入电压，确定充电接口处的电压变化信息。
用户设备判断输入电流是否大于或等于预设电流阈值，在输入电流大于或等于预设电流阈值时，根据开路电压和输入电压，确定充电接口处的电压变化信息。其中，电压变化信息包括电压变化积分值和/或电压变化趋势信息，该预设电流阈值可以根据实际情况进行设置，例如预设电流阈值为充电接口能承受的最大电流阈值。
在一实施例中，电压变化信息包括电压变化积分值；根据开路电压和输入电压，确定 充电接口处的电压变化信息，包括：获取预设方程式，所述预设方程式为：
U error＝U ocv-sum(U(k))/k；
其中，U error表示电压变化积分值，U ocv表示开路电压，sum表示求和运算，k表示目标电流值的调整次数，U(k)表示第k次调整后获取的所述充电接口处的输入电压。其中，电压变化积分值用于表征调整目标电流导致的充电接口处的电压的变化积分值。
示例性的，如图3所示，线段100用于表征直流恒压源的I-U特性曲线，线段200用于表征光伏电源的I-U特性曲线。根据上述预设方程式计算得到电压变化积分值为阴影区域面积S，阴影区域面积S表示线段200在一定电流变化范围内的电压下降积分。可见不同电源类型的I-U特性曲线对应的电压变化积分值不同，反而言之，通过充电接口处的电压变化积分值能够确定充电接口处的电源I-U特性曲线类别，从而能够根据电源I-U特性曲线类别确定充电接口处连接的电源设备的电源类型。
在一实施例中，电压变化信息还可以包括电压变化趋势信息，不同电源类型的I-U特性曲线对应的电压变化趋势信息不同，如根据直流电源和光伏电源的I-U特性图，随着目标电流的增加，直流电源的电压变化趋势与光伏电源的电压变化趋势不同。示例性的，如图3所示，由线段100可知，直流电源的电压变化趋势信息为随电流的增大电压不变；由线段200可知，而光伏电源的电压变化趋势为随电流的增大电压减小。
步骤S205、根据电压变化信息，确定电源设备的电源类型。
其中，电压变化信息包括电压变化积分值和/或电压变化趋势信息，根据充电接口处的电压变化信息，确定电源设备的电源类型，能够提高电源设备识别的准确性。
在一实施例中，根据电压变化信息，确定电源设备的电源类型，包括：获取预设积分阈值；根据电压变化积分值和预设积分阈值，确定电源设备的电源类型。其中，预设积分阈值可以根据实际情况进行设置，可选的，预设积分阈值是根据光伏电源的I-U特性曲线对应的电压变化积分值进行设置的，例如，对光伏电源的光伏特性进行建模分析，并对光伏电源的I-U特性曲线和其他电源的I-U特性曲线进行合理的区分，从而选取恰当的积分值作为预设积分阈值，能够避免造成光伏电源与其他电源如直流恒压源之间的误判。
在一实施例中，根据电压变化信息，确定电源设备的电源类型，包括：获取预设积分阈值；判断电压变化积分值是否大于或等于预设积分阈值；若电压变化积分值大于或等于预设积分阈值，则确定电源设备为光伏电源；若电压变化积分值小于预设积分阈值，则确定电源设备为直流恒压源。
需要说明的是，若充电接口为直流恒压源与光伏电源的混合充电接口，需要判断该充电接口连接的电源设备的电源类型为光伏电源还是直流恒压源，在电压变化积分值大于或等于预设积分阈值时，确定电源设备为光伏电源，在电压变化积分值小于预设积分阈值时，确定电源设备为直流恒压源。通过上述判断，能够准确识别出与充电接口连接的电源设备的电源类型为光伏电源还是直流恒压源，提高电源设备识别的准确性。
在一实施例中，获取预设积分阈值包括：获取当前光照强度和当前环境温度；以当前光照强度和当前环境温度作为查找条件，在积分阈值映射表中查找满足该查找条件的积分阈值，积分阈值映射表中保存有各光照强度和各环境温度对应的积分阈值；以查找到满足查找条件的积分阈值作为预设积分阈值。其中，积分阈值映射表可以根据电源设备所在地区的光照强度和环境温度等实际情况进行多次试验得到。通过上述步骤，能够快速获取该预设积分阈值，以提高预设积分阈值的精准度，从而提高电源设备识别的准确性。
在一实施例中，储能设备获取用于表征光伏电源的电压变化的积分函数；获取当前光照强度和当前环境温度，根据积分函数、当前光照强度和当前环境温度确定预设积分阈值。其中，该积分函数为：
Figure PCTCN2022136004-appb-000001
在该积分函数中，V MP表示电压变化的积分函数，V REF表示光伏电源运行在最大功率下的电压，I rr表示当前光照强度，I REF表示标准环境下的光照强度，β表示预设温度系数，T表示当前环境温度，T REF表示标准环境下的环境温度。
需要说明的是，光伏电源可以包括多个PV光伏组件，例如光伏板，上述温度系数β由光伏板材质确定。易知，光伏电源在不同的光照强度和环境温度下的I-U特性曲线存在差异，通过当前光照强度、当前环境温度和电压变化的积分函数确定与光伏电源相关的预设积分阈值，能够提高识别出电源设备的电源类型为光伏电源的准确性。
示例性的，如图4所示，横坐标表示光照强度W/m 2，纵坐标表示预设积分阈值U error，单位为伏特。线段310用于表征光伏电源在50度环境温度下的电压变化的积分函数，线段320用于表征光伏电源在0度环境温度下的电压变化的积分函数，线段330用于表征光伏电源在25度环境温度下的电压变化的积分函数。可选的，根据当前环境温度，从预设的多条电压变化的积分函数中确定目标积分函数；根据目标积分函数确定与当前光照强度对应的预设积分阈值U error。通过获取某一地区的当前环境温度和当前光照强度，即可求取预设积分阈值，从而根据求取的预设积分阈值，则可将直流恒压源与光伏电源识别出来。
在一实施例中，通过对光伏电源的光伏特性进行建模分析，以确定用于表征光伏电源的电压变化的积分函数。示例性的，光伏电源的I-U特性曲线函数为：
Figure PCTCN2022136004-appb-000002
其中，I sc表示光伏电源的短路电流，V oc表示光伏电源的开路电压。
Figure PCTCN2022136004-appb-000003
Figure PCTCN2022136004-appb-000004
其中，I MP表示光伏电源在最大功率点下的电压值，V MP表示光伏电源在最大功率点下的电流值，C 1和C 2表示中间变量。
进一步地，光伏电源的功率变化的积分函数受光照强度与环境温度的影响，影响因素的计算公式如下：
Figure PCTCN2022136004-appb-000005
其中，P MP表示功率变化的积分函数，P REF表示光伏电源在标准环境下的最大功率，I rr表示当前光照强度，I REF表示标准环境下的光照强度，β表示预设温度系数，T表示当前环境温度，T REF表示标准环境下的环境温度。
由于P＝V *I，P、V、I分别表示光伏电源的输入功率、输入电压和输入电流；并且， 光伏电源的开路电压
Figure PCTCN2022136004-appb-000006
光伏电源的短路电流
Figure PCTCN2022136004-appb-000007
其中，FF表示预设填充因子，填充因子可以由生产厂商确定。
基于此，根据光伏电源的电压变化的积分函数、功率变化的积分函数、上述开路电压和短路电流的相关公式，得出预设积分阈值U error的求取公式为：
Figure PCTCN2022136004-appb-000008
在一实施例中，确定电源设备的电源类型之后，根据识别出的电源设备的电源类型，开启对应的充电模式。示例性的，若识别出的电源设备的电源类型为直流恒压源接口，则开启直流充电模式，以实现直流充电模式下的直流DC的稳定充电；若识别出的电源设备的电源类型为光伏电源，则开启MPPT(Maximum Power Point Tracking，最大功率点跟踪)充电模式，以实现MPPT充电模式下的最大功率充电。需要说明的是，储能设备根据识别出的电源设备的电源类型，开启对应的充电模式，能够避免开启错误的充电模式，从而提高储能设备的充电效果。
上述实施例提供的电源设备识别方法，通过获取充电接口处的开路电压；当开路电压满足预设工作电压条件时，将目标电流值发送给电源设备，以使电源设备根据目标电流值输出目标电流；获取充电接口处的输入电流和输入电压，其中，充电接口处的输入电流和输入电压随目标电流的改变而发生变化；在输入电流大于或等于预设电流阈值时，根据开路电压和输入电压，确定充电接口处的电压变化信息；根据电压变化信息，确定电源设备的电源类型。通过充电接口处的电压变化信息确定电源设备的电源类型，能够提高电源设备识别的准确性，从而能够避免开启错误的充电模式，提高储能设备的充电效果。
请参照图5，图5为本申请实施例提供的另一种电源设备识别方法的步骤流程示意图。
如图5所示，该电源设备识别方法包括步骤S301至S306。
步骤S301、获取充电接口处的开路电压。
检测充电接口处的开路电压，以确定是否有电源设备接入到充电接口中。若充电接口处存在开路电压，证明有电源设备接入，则可以通过电压检测电路获取该充电接口处的开路电压。
步骤S302、当开路电压满足预设工作电压条件时，将目标电流值发送给电源设备，以使电源设备根据目标电流值输出目标电流。
例如，预设工作电压条件为开路电压U ocv小于最高工作电压Vmax，且开路电压U ocv大于最低工作电压Vmin。
在一实施例中，当确定开路电压满足预设工作电压条件时，储能设备将目标电流值发送给电源设备，以使电源设备根据目标电流值向储能设备输出目标电流。其中，该电源输入设备例如为充电器，目标电流值可以携带于电流调整指令，以使充电器根据该电流调整指令输出与该目标电流值一致的电流。
步骤S303、获取充电接口处的输入电流和输入电压，其中，充电接口处的输入电流和输入电压随目标电流的改变而发生变化。
电源设备根据目标电流值向储能设备输出目标电流，储能设备获取充电接口处的输入电流和输入电压，目标电流和输入电流存在差异，且输入电流和输入电压随目标电流的改变而发生变化。
在一实施例中，储能设备向电源设备发送的目标电流值可以根据实际情况进行调整和变化，当目标电流值进行调整和变化时，输入电流和输入电压随目标电流的改变而发生变 化。具体地，当目标电流增大，则输入电流和输入电压随目标电流的增大而增大，当目标电流减小，则输入电流和输入电压随目标电流的减小而减小。
步骤S304、判断输入电流是否大于或等于预设电流阈值。
其中，预设电流阈值例如为充电接口能承受的最大电流阈值。若输入电流小于预设电流阈值，则表明充电接口处的输入电流处于充电接口能承受的电流范围内，若输入电流大于或等于预设功率阈值，表明充电接口处的输入电流处于充电接口不能承受的电流范围。在其他实施例中，该预设电流阈值也可以设置为识别方法中设置的最大电流值。
步骤S305a、在输入电流大于或等于预设电流阈值时，根据开路电压和输入电压，确定充电接口处的电压变化信息。
其中，电压变化信息包括电压变化积分值和/或电压变化趋势信息，通过电压变化积分值和/或电压变化趋势信息有利于提高电源设备类型识别的准确性。
需要说明的是，根据电源设备的I-U特性，充电接口连接不同电源设备对应的电压变化积分值和/或电压变化趋势信息不同，在输入电流大于或等于预设电流阈值时，表明充电接口处的输入电流处于充电接口不能承受的电流范围，可以根据开路电压和输入电压，确定充电接口处的电压变化积分值和/或电压变化趋势信息。
步骤S305b、在输入电流小于预设电流阈值时，根据输入电流和输入电压计算输入功率。
若输入电流小于预设电流阈值，则表明充电接口处的输入电流处于充电接口能承受的电流范围内，此时可以根据输入电流和输入电压计算电源设备的目标电流对应的输入功率，并判断输入功率是否大于或等于预设功率阈值。其中，预设功率阈值可以根据储能设备的实际情况进行设置，例如，预设功率阈值为充电接口能承受的最大功率阈值。
步骤S3051、判断输入功率是否大于或等于预设功率阈值。
在本步骤中，若判断该输入功率大于或者等于该预设功率阈值时，将执行步骤S305a。需要说明的是，若输入功率大于或等于预设功率阈值，表明充电接口处的输入功率处于充电接口不能承受的功率范围，则可以执行前述的根据开路电压和输入电压，确定充电接口处的电压变化信息的步骤，以提高电源设备类型识别的准确性。
步骤S306、根据电压变化信息，确定电源设备的电源类型。
需要说明的是，不同类型的电源设备对应的电压变化信息不同，例如根据不同类型的电源设备的I-U特性曲线不同，根据I-U特性曲线确定的电压变化积分值也不相同，因此根据充电接口处的电压变化信息，能够确定电源设备的电源类型，提高电源设备识别的准确性，从而能够根据识别出的电源类型开启对应的充电模式，提高充电效果。
在一实施例中，如图6所示，步骤S3051在判断输入功率是否大于或等于预设功率阈值之后，还包括：步骤S3052至步骤S3053。
步骤S3052、若输入功率小于预设功率阈值，则计算调整目标电流导致的输入电压的电压变化差值。
需要说明的是，若输入功率小于预设功率阈值，表明充电接口处的输入功率处于充电接口能够承受的功率范围，则可以计算调整目标电流导致的输入电压的电压变化差值，并判断电压变化差值是否大于或等于预设电压阈值。调整目标电流导致的输入电压的电压变化差值是在目标采样电压与前一时刻的采样电压之间的电压变化差值，可以表示为U(k)-U(k-1)。其中，预设电压阈值可以根据储能设备的实际情况进行设置，例如，预设电压阈值为充电接口能承受的最大容忍电压差值的绝对值，预设电压阈值可以是开路电压的1/6或固定值6V。
步骤S3053、判断电压变化差值是否大于或等于预设电压阈值。
需要说明的是，若电压变化差值大于或等于预设电压阈值，表明充电接口处的电压变化差值处于充电接口不能承受的容忍电压差值范围，则可以执行前述的根据开路电压和输 入电压，确定充电接口处的电压变化信息的步骤，也即步骤S305a，以提高电源设备类型识别的准确性。
在一实施例中，如图7所示，步骤S3053在判断电压变化差值是否大于或等于预设电压阈值之后，还包括步骤S3054。
步骤S3054、若电压变化差值小于预设电压阈值，则调整目标电流值；根据调整后的目标电流值，将目标电流值发送给电源设备，以使电源设备根据目标电流值输出目标电流。
其中，若电压变化差值小于预设电压阈值，则调整目标电流值，调整目标电流导致的输入电压的电压变化差值可以表示为U(k)-U(k-1)，调整目标电流之前的输入电压为U(k-1)，调整目标电流之后的输入电压为U(k)，k表示目标电流值的调整次数，若k等于1，则该U(0)为输入端口的开路电压U ocv。
需要说明的是，调整目标电流值之后，根据调整后的目标电流值，将目标电流值发送给电源设备，以使电源设备根据目标电流值输出目标电流，并返回执行步骤S303，从而能够进一步的确定充电接口处的电压变化信息，保证通过多次调整目标电流值后能够根据识别得到的电压变化信息，确定电源设备的电源类型，从而能够避免开启错误的充电模式，提高储能设备的充电效果。
示例性的，若电压变化差值小于预设电压阈值，表明充电接口处的电压变化差值处于充电接口能承受的容忍电压差值范围内，此时可以重新调整目标电流值，例如在当前目标电流值的基础上进行增加预设调整电流值，得到调整后的目标电流值，将调整后的目标电流值发送给电源设备，以使电源设备根据调整后的目标电流值输出调整后的目标电流。
请参照图8，图8为本实施例提供的电源设备识别方法的一流程示意图。
如图8所示，该电源设备识别方法包括：
1、储能设备采集输入端口(也可称为充电接口)处的开路电压U ocv；
2、储能设备判断开路电压是否满足最低、最高工作电压要求，例如判断开路电压U ocv是否小于最高工作电压Vmax，且大于最低工作电压Vmin；
3、若开路电压不满足最低、最高工作电压要求，则储能设备结束本次电源识别；
4、若开路电压满足最低、最高工作电压要求，则储能设备对输入端口的电流目标值I_tag进行初始化，即初始化I_tag＝0；
5、储能设备设定输入端口电流的目标电流值I_tag，并记录目标电流值I_tag的设定次数k，初次采集时k＝1，后续步骤中每一次更新目标电流值均更新k的数值，即k＝k+1，储能设备将目标电流值I_tag发送给电源设备，以使电源设备根据目标电流值I_tag输出目标电流；
6、储能设备接收到该电源设备输入的电压和电流后，采集输入端电压U(k)和电流I(k)，k表示第k次采集；
7、储能设备判断I(k)是否大于第一阈值(图8中以阈值1表示)，第一阈值例如为预设电流阈值；
8、若I(k)大于第一阈值，则计算充电接口处的电压变化信息U error，其中：
U error＝U ocv-sum(U(k))/k；
9、若I(k)不大于第一阈值，则储能设备计算充电接口处的输入功率U(k)*I(k)，并判断该输入功率U(k)*I(k)是否大于第二阈值(图8中以阈值2表示)，第二阈值例如为预设功率阈值；
10、若输入功率U(k)*I(k)大于第二阈值，则储能设备计算U error：
U error＝U ocv-sum(U(k))/k；
11、若输入功率U(k)*I(k)不大于第二阈值，则计算电压变化差值U(k)-U(k-1)，并判断电压变化差值U(k)-U(k-1)是否大于第三阈值(图8中以阈值3表示)，第三阈值例如为预设电压阈值；
12、若电压变化差值U(k)-U(k-1)大于第三阈值，则计算U error：
U error＝U ocv-sum(U(k))/k；
13、若电压变化差值U(k)-U(k-1)不大于第三阈值，则增加目标电流值I_tag的值，并返回设定输入端口电流的目标值I_tag，例如调整目标电流值；将调整后的目标电流值发送给电源设备，以使电源设备根据目标电流值输出目标电流；每更新一次目标电流值，均更新并记录k的数值，即k＝k+1；
14、储能设备计算U error＝U ocv-sum(U(k))/k后，判断U error是否大于第四阈值(图8中以阈值4表示)，第四阈值例如为预设积分阈值；若是，则判断该电源设备为PV光伏类型；若否，则判断该电源设备为直流恒压源类型。
需要说明的是，在上述实施例提供的一种电源设备识别方法中，判断输入电流是否大于或等于预设电流阈值、判断输入功率是否大于或者等于预设功率阈值、判断电流电压变化差值是否大于或者等于预设电流阈值的执行先后顺序可以根据实际需求进行设置。
请参阅图9，图9为本申请实施例提供的一种电子设备的结构示意性框图。该电子设备300可以是储能设备，该储能设备例如包括电池模组，电池模组包括一个或多个电能存储单元，电能存储单元例如为一个或多个电池。电子设备300也可以为手机、平板电脑、笔记本电脑、台式电脑、个人数字助理和穿戴式设备等设备。
如图9所示，该电子设备300包括通过系统总线301连接的处理器302和存储器303，电子设备300还包括电源接口304，所述电源接口304用于连接电源设备；其中，存储器303可以包括非易失性存储介质和内存储器。
非易失性存储介质可存储操作系统和计算机程序。该计算机程序包括程序指令，该程序指令被执行时，可使得处理器302执行任意一种电源设备识别方法。
处理器302用于提供计算和控制能力，支撑整个电子设备300的运行。
内存储器为非易失性存储介质中的计算机程序的运行提供环境，该计算机程序被处理器302执行时，可使得处理器302执行任意一种电源设备识别方法。
电子设备300还可以包括网络接口，该网络接口用于进行网络通信，如发送分配的任务等。本领域技术人员可以理解，图9中示出的结构，仅仅是与本申请方案相关的部分结构的框图，并不构成对本申请方案所应用于其上的电子设备300的限定，具体的电子设备300可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
应当理解的是，处理器302可以是中央处理单元(Central Processing Unit，CPU)，该处理器302还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。其中，通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
其中，在一个实施例中，所述处理器302用于运行存储在存储器中的计算机程序，以实现如上任一实施例所提供的电源设备的识别方法中的各步骤。
需要说明的是，所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述电子设备300的具体工作过程，可以参考前述电源设备识别方法实施例中的对应过程，在此不再赘述。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储有一个或者多个计算机程序，所述一个或者多个计算机程序中包括程序指令，所述程序指令可被一个或者多个处理器执行，所述程序指令被执行时所实现的方法可参照本申请电源设备识别方法的各个实施例。
其中，所述计算机可读存储介质可以是前述实施例所述的电子设备的内部存储单元，例如所述电子设备的硬盘或内存。所述计算机可读存储介质也可以是所述电子设备的外部存储设备，例如所述电子设备上配备的插接式硬盘，智能存储卡(Smart Media Card，SMC)，安全数字(Secure Digital，SD)卡，闪存卡(Flash Card)等。
应当理解，在此本申请说明书中所使用的术语仅仅是出于描述特定实施例的目的而并不意在限制本申请。如在本申请说明书和所附权利要求书中所使用的那样，除非上下文清楚地指明其它情况，否则单数形式的“一”、“一个”及“该”意在包括复数形式。
还应当理解，在本申请说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合，并且包括这些组合。需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (11)

  1. 一种电源设备识别方法，应用于电子设备，所述电子设备包括电源接口，所述电源接口用于连接所述电源设备，所述方法包括：
    获取所述电源接口处的开路电压；
    在所述开路电压满足预设工作电压条件时，将目标电流值发送给所述电源设备，以使所述电源设备根据所述目标电流值输出目标电流；
    获取所述电源接口处的输入电能参数，其中，所述输入电能参数随所述目标电流的改变而发生变化，所述输入电能参数包括输入电压；
    在所述输入电能参数不满足预设判断条件时，调整所述目标电流值，执行将目标电流值发送给所述电源设备的步骤；
    在所述输入电能参数满足所述预设判断条件时，根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息；
    根据所述电压变化信息，确定所述电源设备的电源类型。
  2. 根据权利要求1所述的电源设备识别方法，其中，所述输入电能参数还包括输入电流、输入功率或输入电压变化差值，判断所述输入电能参数是否满足预设判断条件的步骤包括：
    若所述输入电流大于或等于预设电流阈值、所述输入功率大于或等于预设功率阈值、或所述输入电压差值大于或等于预设电压阈值，则确定所述输入电能参数满足所述预设判断条件；
    若所述输入电流小于预设电流阈值、所述输入功率小于预设功率阈值且所述输入电压差值小于预设电压阈值，则确定所述输入电能参数不满足所述预设判断条件。
  3. 根据权利要求1所述的电源设备识别方法，其中，所述输入电能参数还包括输入电流、输入功率或输入电压变化差值，所述在所述输入电能参数满足预设判断条件时，根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息包括：
    判断所述输入电流是否大于或等于所述预设电流阈值；
    在所述输入电流大于或者等于所述预设电流阈值时，根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息；
    在所述输入电流小于预设电流阈值时，判断所述输入功率是否大于或等于预设功率阈值；
    在所述输入功率大于或等于预设功率阈值时，执行所述根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息的步骤；
    在所述输入功率小于预设功率阈值时，则判断所述输入电压变化差值是否大于或等于预设电压阈值；
    在所述输入电压变化差值大于或等于预设电压阈值时，执行所述根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息的步骤；
    若所述输入电压变化差值小于预设电压阈值时，则确定所述输入电能参数不满足所述预设判断条件。
  4. 根据权利要求1-3任一项所述的电源设备识别方法，其中，所述调整所述目标电流值包括：
    将所述目标电流值增加预设调整电流值，并记录调整次数；
    所述电源设备识别方法还包括:
    在所述输入电能参数不满足预设判断条件时，判断所述调整次数是否达到预设调整总数；
    若达到，则执行根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息的步骤；
    若未达到，则调整所述目标电流值，执行将目标电流值发送给所述电源设备的步骤。
  5. 根据权利要求1-3任一项所述的电源设备识别方法，其中，所述电压变化信息包括电压变化积分值；所述根据所述开路电压和所述输入电压，确定所述电源接口处的电压变化信息，包括：
    获取预设方程式，所述预设方程式以U error＝U ocv-sum(U(k))/k表示，其中，U error表示电压变化积分值，U ocv表示开路电压，sum表示求和运算，k表示目标电流值的调整次数，U(k)表示第k次调整后获取的所述电源接口处的输入电压；
    将所述开路电压和所述输入电压代入至所述预设方程式进行计算，得到所述电源接口处的电压变化积分值。
  6. 根据权利要求5所述的电源设备识别方法，其中，所述根据所述电压变化信息，确定所述电源设备的电源类型，包括：
    获取预设积分阈值；
    判断所述电压变化积分值是否大于或等于所述预设积分阈值；
    若所述电压变化积分值大于或等于所述预设积分阈值，则确定所述电源设备为光伏电源；
    若所述电压变化积分值小于所述预设积分阈值，则确定所述电源设备为直流恒压源。
  7. 根据权利要求6所述的电源设备识别方法，其中，所述电源设备识别方法还包括：
    获取用于表征光伏电源的电压变化的积分函数，所述积分函数为：
    Figure PCTCN2022136004-appb-100001
    其中，V MP表示电压变化的积分函数，V REF表示光伏电源运行在最大功率下的电压，I rr表示当前光照强度，I REF表示标准环境下的光照强度，β表示预设温度系数，T表示当前环境温度，T REF表示标准环境下的环境温度；
    获取当前光照强度和当前环境温度；
    根据所述积分函数、所述当前光照强度和所述当前环境温度确定所述预设积分阈值。
  8. 根据权利要求6所述的电源设备识别方法，其中，所述获取预设积分阈值包括：
    获取当前光照强度和当前环境温度；
    以所述当前光照强度和所述当前环境温度作为查找条件，在积分阈值映射表中查找满足所述查找条件的积分阈值，所述积分阈值映射表中保存有各光照强度和各环境温度对应的积分阈值；
    以查找到满足所述查找条件的积分阈值作为所述预设积分阈值。
  9. 一种电子设备，所述电子设备包括电源接口，所述电源接口用于连接所述电源设备；所述电子设备还包括处理器、存储器以及用于实现所述处理器和所述存储器之间的连接通信的数据总线，其中，所述存储器上存储有可被所述处理器执行的计算机程序，所述计算机程序被所述处理器执行时，实现如权利要求1至8中任一项所述的电源设备识别方法的步骤。
  10. 一种储能设备，包括电源接口，所述电源接口用于连接所述电源设备；所述储能设备还包括处理器、存储器以及用于实现所述处理器和所述存储器之间的连接通信的数据总线，其中，所述存储器上存储有可被所述处理器执行的计算机程序，所述计算机程序被所述处理器执行时，实现如权利要求1至8中任一项所述的电源设备识别方法的步骤。
  11. 根据权利要求10所述的储能设备，其中，所述储能设备还包括电池模组，所述处理器还被配置为在确定所述电源设备的电源类型后，利用所述电源设备为所述电池模组充电。
PCT/CN2022/136004 2021-12-22 2022-12-01 电源设备识别方法、电子设备及储能设备 WO2023116385A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111584327.4A CN114430188B (zh) 2021-12-22 2021-12-22 电源设备识别方法、电子设备及存储介质
CN202111584327.4 2021-12-22

Publications (1)

Publication Number Publication Date
WO2023116385A1 true WO2023116385A1 (zh) 2023-06-29

Family

ID=81312125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/136004 WO2023116385A1 (zh) 2021-12-22 2022-12-01 电源设备识别方法、电子设备及储能设备

Country Status (2)

Country Link
CN (1) CN114430188B (zh)
WO (1) WO2023116385A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117233664A (zh) * 2023-11-13 2023-12-15 成都创科升电子科技有限责任公司 一种用于微小电流电路的开路检测方法和系统
CN117318054A (zh) * 2023-11-28 2023-12-29 深圳安培时代数字能源科技有限公司 光伏电能处理方法及相关装置
CN117614087A (zh) * 2024-01-24 2024-02-27 大秦数字能源技术股份有限公司 一种智能识别的直流充电方法、装置、微控制单元和介质
CN117639168A (zh) * 2023-11-28 2024-03-01 深圳市力芯微科技有限公司 输入电源类型的分析方法、设备及存储介质

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114430188B (zh) * 2021-12-22 2022-12-06 深圳市正浩创新科技股份有限公司 电源设备识别方法、电子设备及存储介质
CN115622190B (zh) * 2022-11-02 2023-06-09 杭州蔚斯博系统科技有限公司 移动式储能电源设备、控制器及其内功率变换器控制方法
CN115425733B (zh) * 2022-11-03 2023-02-14 深圳市华宝新能源股份有限公司 一种充电控制方法、装置、太阳能充电控制器及存储介质
CN115882554B (zh) * 2022-11-29 2023-12-26 厦门海辰储能科技股份有限公司 储能系统的管理方法及相关装置
CN116155081B (zh) * 2023-04-23 2023-06-27 深圳市澳博森科技有限公司 一种基于多端口电源适配器的过载调整方法及装置
CN117388732B (zh) * 2023-07-07 2024-06-21 江苏华翊成电气科技有限公司 高功率密度直流电源安全监测方法和系统
CN116774768B (zh) * 2023-08-22 2024-02-06 深圳市德兰明海新能源股份有限公司 一种通道复用的储能电源的功率追踪方法及其系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190089190A1 (en) * 2017-09-18 2019-03-21 Asia Pacific Fuel Cell Technologies, Ltd. Power controller, power supply system and device and control method thereof
CN110112777A (zh) * 2019-05-13 2019-08-09 无锡清盛电力电子有限公司 光伏与储能输入的自适应方法、装置及电能路由器
CN112924890A (zh) * 2021-02-18 2021-06-08 联想(北京)有限公司 一种检测电源的方法、装置和电子设备
CN113725951A (zh) * 2021-08-06 2021-11-30 Oppo广东移动通信有限公司 充电管理方法及装置、终端设备、存储介质
CN114430188A (zh) * 2021-12-22 2022-05-03 深圳市正浩创新科技股份有限公司 电源设备识别方法、电子设备及存储介质

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105846401A (zh) * 2016-04-25 2016-08-10 浪潮集团有限公司 一种电源管理装置及方法、电子设备
CN109507506B (zh) * 2018-11-19 2024-08-09 珠海格力电器股份有限公司 直流电器控制方法及直流电器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190089190A1 (en) * 2017-09-18 2019-03-21 Asia Pacific Fuel Cell Technologies, Ltd. Power controller, power supply system and device and control method thereof
CN110112777A (zh) * 2019-05-13 2019-08-09 无锡清盛电力电子有限公司 光伏与储能输入的自适应方法、装置及电能路由器
CN112924890A (zh) * 2021-02-18 2021-06-08 联想(北京)有限公司 一种检测电源的方法、装置和电子设备
CN113725951A (zh) * 2021-08-06 2021-11-30 Oppo广东移动通信有限公司 充电管理方法及装置、终端设备、存储介质
CN114430188A (zh) * 2021-12-22 2022-05-03 深圳市正浩创新科技股份有限公司 电源设备识别方法、电子设备及存储介质

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117233664A (zh) * 2023-11-13 2023-12-15 成都创科升电子科技有限责任公司 一种用于微小电流电路的开路检测方法和系统
CN117233664B (zh) * 2023-11-13 2024-02-02 成都创科升电子科技有限责任公司 一种用于微小电流电路的开路检测方法和系统
CN117318054A (zh) * 2023-11-28 2023-12-29 深圳安培时代数字能源科技有限公司 光伏电能处理方法及相关装置
CN117639168A (zh) * 2023-11-28 2024-03-01 深圳市力芯微科技有限公司 输入电源类型的分析方法、设备及存储介质
CN117318054B (zh) * 2023-11-28 2024-03-15 深圳安培时代数字能源科技有限公司 光伏电能处理方法及相关装置
CN117614087A (zh) * 2024-01-24 2024-02-27 大秦数字能源技术股份有限公司 一种智能识别的直流充电方法、装置、微控制单元和介质
CN117614087B (zh) * 2024-01-24 2024-04-05 大秦数字能源技术股份有限公司 一种智能识别的直流充电方法、装置、微控制单元和介质

Also Published As

Publication number Publication date
CN114430188A (zh) 2022-05-03
CN114430188B (zh) 2022-12-06

Similar Documents

Publication Publication Date Title
WO2023116385A1 (zh) 电源设备识别方法、电子设备及储能设备
CN103048629B (zh) 锂电池电量的计量方法和计量装置
TWI600245B (zh) 電源供應電路、電源供應系統以及電源供應方法
WO2021136384A1 (zh) 用于内短路电流检测方法、装置、设备及可读存储介质
US20030159073A1 (en) Battery charger current limiting based on AC power adapter power
US20230022599A1 (en) Method and apparatus for charging a battery with ac power based on state of battery related information
CN104124742B (zh) 电源供应控制方法
WO2019109951A1 (zh) 便携式电能系统及电池包剩余电量测量方法
US20210376643A1 (en) Adaptive Power Systems and Techniques
CN105186598A (zh) Usb插入自动识别和供电系统和集成有该系统的芯片
US11073885B2 (en) Battery architecture for variable loads and output topologies in an information handling system
WO2021217310A1 (zh) 充电控制电路、充电控制方法、设备及存储介质
CN115224763A (zh) 一种电池储能管理系统及方法
CN111404217B (zh) 一种便携式能源管理电路及系统
US11152801B2 (en) Energy level conversion circuit for portable energy storage apparatus
CN110649667B (zh) 一种太阳能充电装置的控制方法以及太阳能充电装置
TW201907313A (zh) 電力控制裝置及發電裝置
CN113507154B (zh) 充电方法、装置、充电机和电子设备
CN113690962B (zh) 不同输入源的mppt控制方法、装置、设备及存储介质
WO2022241766A1 (zh) 电池放电欠压保护方法、电池装置及用电装置
US12081024B1 (en) Power path control management circuit
JP2021083285A (ja) 端末、制御装置、及びプログラム
US11996724B1 (en) System and methods for battery recharging
US20240235241A9 (en) Mobility charging device and charging method using the same
CN218243094U (zh) 一种适用于智能远传电磁水表的双电源兼容供电电路

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22909700

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE