CN218473019U - Energy storage power supply and energy storage power supply system - Google Patents
Energy storage power supply and energy storage power supply system Download PDFInfo
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- CN218473019U CN218473019U CN202222579556.3U CN202222579556U CN218473019U CN 218473019 U CN218473019 U CN 218473019U CN 202222579556 U CN202222579556 U CN 202222579556U CN 218473019 U CN218473019 U CN 218473019U
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Abstract
The embodiment of the disclosure discloses an energy storage power supply and an energy storage power supply system, wherein the energy storage power supply comprises a control module, a modulation module and an energy storage module; the control module is used for determining a reference value of a reference signal matched with the power value of the load under the condition that at least two energy storage power supplies adopt a power connecting line for parallel operation and the current energy storage power supply is connected with the load, and generating a modulation signal based on reference value coding; the modulation module is used for superposing a modulation signal output by the control module in the energy storage power supply and an output signal output by the energy storage module to obtain a carrier signal; the energy storage module is used for providing electric energy for the load; the carrier signal is used for adjusting the output value of the output signal output by the energy storage module in the next energy storage power supply; the reference signal includes at least one of: current, voltage, frequency, phase, amplitude. The embodiment of the disclosure can balance the output power among the energy storage power supplies.
Description
Technical Field
The present disclosure relates to, but not limited to, the field of electronic technologies, and in particular, to an energy storage power supply and an energy storage power supply system.
Background
At present, outdoor sports become a leisure and recreation mode for people on weekends or in a fixed way, and necessary equipment and equipment are indispensable in outdoor sports. In the related art, a plurality of energy storage power supplies are connected in parallel to provide electric energy for high-power equipment, but the parallel operation has more limitation conditions, for example, special wires are required, or additional auxiliary tools are required, which affects the carrying convenience of outdoor equipment.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present disclosure provides at least an energy storage power source and an energy storage power source power supply system.
The technical scheme of the embodiment of the disclosure is realized as follows:
in one aspect, an embodiment of the present disclosure provides an energy storage power supply, including: control module, modulation module and energy storage module, wherein: the control module is used for determining a reference value of a reference signal matched with the power value of a load under the condition that at least two energy storage power supplies adopt power connecting wires for parallel operation and the current energy storage power supplies are connected with the load, and generating a modulation signal based on the reference value code; the modulation module is used for superposing the modulation signal output by the control module in the energy storage power supply and the output signal output by the energy storage module to obtain a carrier signal; the energy storage module is used for providing electric energy for the load; the carrier signal is used for adjusting the output value of an output signal output by an energy storage module in the next energy storage power supply; the reference signal includes at least one of: current, voltage, frequency, phase, amplitude.
In another aspect, an embodiment of the present disclosure provides an energy storage power supply system, including: n energy storage power supplies according to any of claims 1 to 7, (N-1) power connection lines; the output end of the energy storage module in the ith energy storage power supply is connected with the input end of the energy storage module in the (i + 1) th energy storage power supply through one power connecting wire; the master energy storage power supply is used for determining a reference value of a reference signal matched with the power value of the load, generating a carrier signal based on the reference value, and sending the carrier signal to the slave energy storage power supply; the slave energy storage power supply is used for adjusting the output value of an output signal output by an energy storage module in the slave energy storage power supply based on the carrier signal; wherein the value of i is an integer which is more than or equal to 1 and less than or equal to N-1, and N is an integer which is more than 1; the energy storage power supply connected with the load is a host energy storage power supply, and the energy storage power supply connected with the host energy storage power supply is a slave energy storage power supply.
Compared with the related art, when a plurality of energy storage power supplies are connected in parallel, special wires or additional auxiliary tools need to be used, so that the carrying convenience of the energy storage power supplies is influenced, the cost is increased, and the like. In the embodiment of the present disclosure, first, a plurality of energy storage power supplies may be parallel connected through a power connection line. Therefore, the parallel operation mode can be simplified, and the output power of a plurality of energy storage power sources is superposed to provide electric energy for a load with larger power. Secondly, superposing a modulation signal output by a control module in the energy storage power supply and an output signal output by the energy storage module by using a modulation module in the energy storage power supply to obtain a carrier signal; the carrier signal is used for adjusting the output value of the output signal output by the energy storage module in the next energy storage power supply; the control module is used for determining a reference value of a reference signal matched with the power value of the load under the condition that at least two energy storage power supplies adopt power connecting wires for parallel operation and the current energy storage power supplies are connected with the load, and generating a modulation signal based on reference value coding; the reference signal includes at least one of: current, voltage, frequency, phase, amplitude. Therefore, the output power between the energy storage power supplies can be quickly and accurately balanced, the energy storage module accurately and stably supplies electric energy to a high-power load, and the conditions that the energy storage power supplies are burnt out or cannot be supplied with electric energy and the like due to unbalanced output of the energy storage power supplies are reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the technical aspects of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram of an energy storage power supply according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an energy storage power supply according to an embodiment of the present disclosure;
fig. 3 is a schematic circuit diagram of an energy storage power supply according to an embodiment of the disclosure;
fig. 4 is a schematic structural diagram of an energy storage power supply according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an energy storage power supply according to an embodiment of the disclosure;
fig. 6 is a schematic structural diagram of an energy storage power supply system according to an embodiment of the present disclosure.
The energy storage device comprises an energy storage power supply 100, a modulation module 101, an energy storage module 102 and a control module 103;
the system comprises an energy storage power supply 200, a demodulation module 104 and a driving module 105;
a first modulation branch 1011, a second modulation branch 1012, a control circuit 1031, a first demodulation branch 1041, a second demodulation branch 1042, a driving circuit 1051, an inverter circuit 1052, a modulation signal 106, a demodulation signal 107, an inverter bridge 201, and a capacitor inductor 202;
the energy storage power supply 300, the coding circuit 1031 and the decoding circuit 1032;
the power supply comprises an energy storage power supply 301, a power input terminal 3011, a power output terminal 3012, an energy storage power supply 302, a power output terminal 3021, a power input terminal 3022, a power connection line 108, and a load 303.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure clearer, the technical solutions of the present disclosure are further elaborated with reference to the drawings and the following embodiments, which should not be construed as limiting the present disclosure, and all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present disclosure.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict. Reference to the terms "first/second/third" merely distinguishes similar objects and does not denote a particular ordering for the objects, and it is understood that "first/second/third" may, where permissible, be interchanged in a particular order or sequence so that embodiments of the present disclosure described herein can be practiced other than as specifically illustrated or described herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing the disclosure only and is not intended to be limiting of the disclosure.
The disclosed embodiment provides an energy storage power supply, as shown in fig. 1, the energy storage power supply 100 includes a modulation module 101, an energy storage module 102, and an energy storage module 103, where:
the control module 103 is configured to determine a reference value of a reference signal matched with a power value of a load when at least two energy storage power supplies 100 are connected in parallel by using a power connection line and the current energy storage power supply is connected to the load, and generate a modulation signal based on reference value coding;
the modulation module 101 is configured to superimpose a modulation signal output by the control module 103 in the energy storage power supply 100 and an output signal output by the energy storage module 102 to obtain a carrier signal;
an energy storage module 102 for providing electrical energy to a load;
the carrier signal is used for adjusting the output value of the output signal output by the energy storage module 102 in the next energy storage power supply; the reference signal includes at least one of: current, voltage, frequency, phase, amplitude.
Here, the modulation module 101 is configured to modulate the modulation signal and the output signal output by the energy storage module 102 to obtain a carrier signal. The modulation signal is generated by the control module 103 by determining a reference value of a reference signal matched with a power value of a load and encoding the reference value when determining that at least two energy storage power supplies 100 adopt a power connection line for parallel operation and the current energy storage power supply is connected with the load. The output signal output by the energy storage module 102 may comprise an output current or an output voltage for providing electrical energy to a load. The power connection line may refer to a wire for transmitting current, such as a two-core power line, a three-core power line, and the like, and is not limited herein. The power connecting wire can be used for carrying out parallel operation between the energy storage power supply and connecting, also can be used for being connected between energy storage power supply and the load, for example, utilize first power connecting wire to carry out the parallel operation between first energy storage power supply and the second energy storage power supply and connect, simultaneously, utilize second power connecting wire to connect etc. between first energy storage power supply and the load.
In the related art, the output signal of the energy storage module 102 is transmitted by a power connection line for supplying electric energy to the load. In the embodiment of the present disclosure, the power connection line is used to transmit the output signal output by the energy storage module 102, so as to superimpose the output power between the energy storage power supplies and provide electric energy to the load, and meanwhile, the power connection line may also be used to transmit the modulation signal, which is used to modulate the output value of the output signal output by the energy storage module 102 of the subsequent energy storage power supply. For example: the first energy storage power supply transmits a modulation signal to the second energy storage power supply to control the second energy storage power supply to output an output voltage equal to that of the first energy storage power supply.
The reference signal may be a signal for controlling an output value of the output signal, for example, the second energy storage power source receives the reference signal sent by the first energy storage power source, and the second energy storage power source adjusts a magnitude of the output value of the output signal matched with the reference signal. The reference signal includes at least one of: current, voltage, frequency, phase, amplitude, reference values of the reference signal including a reference current value, a reference voltage value, a reference frequency value, a reference phase value, a reference amplitude value, etc. For example: the second energy storage power supply adjusts the voltage of the output voltage of the energy storage module of the second energy storage power supply to be a reference voltage value and the like.
Under the condition that a plurality of energy storage power supplies are connected end to end in parallel by utilizing a power connecting wire, and the energy storage power supply at one end is connected with a load, the reference value of the reference signal is determined by the energy storage power supply connected with the load, and the energy storage power supply connected with the load sends information such as the reference value to the energy storage power supply which is not connected with the load. For example: the first energy storage power supply is connected with the load by a first power connecting line, the first energy storage power supply is connected with the second energy storage power supply by a second power connecting line, and the second energy storage power supply is connected with the third energy storage power supply by a third power connecting line; after the first energy storage power supply is connected with the load, the power value of the load and the number of the parallel operation energy storage power supplies can be determined, so that the reference value of the reference signal matched with the power value of the load is determined based on the preset corresponding relation; the first energy storage power supply can modulate the reference value of the reference signal and an output signal between the first energy storage power supply and the second energy storage power supply to form a carrier signal; by utilizing the carrier signal transmitted on the power connecting line between the first energy storage power supply and the second energy storage power supply, the first energy storage power supply sends information such as the reference value of the reference signal to the second energy storage power supply, and then the second energy storage power supply sends the information such as the reference value to the third energy storage power supply, so that the second energy storage power supply and the third energy storage power supply respectively adjust the voltage of the output voltage of the self energy storage module to the reference voltage value and the like.
In some embodiments, a single energy storage power supply may provide two interfaces for connecting power connection lines, including: an input port interface, an output port interface; the single energy storage power supply can also be provided with an interface for connecting the power connecting line, such as a power terminal interface, which can be conducted in two directions, and can be used as an input end of the power connecting line, an output end of the power connecting line, and the like. Here, the number of interfaces for connecting the power connection lines in the energy storage power supply is not limited.
Compared with the related art, when a plurality of energy storage power supplies are connected in parallel, special wires or additional auxiliary tools need to be used, so that the carrying convenience of the energy storage power supplies is influenced, the cost is increased, and the like. In the embodiment of the present disclosure, first, a plurality of energy storage power supplies may be parallel connected through a power connection line. Therefore, the parallel operation mode can be simplified, and the output power of a plurality of energy storage power sources is superposed to provide electric energy for a load with larger power. Secondly, superposing a modulation signal output by a control module in the energy storage power supply and an output signal output by the energy storage module by using a modulation module in the energy storage power supply to obtain a carrier signal; the carrier signal is used for adjusting the output value of the output signal output by the energy storage module in the next energy storage power supply; the control module is used for determining a reference value of a reference signal matched with the power value of the load under the condition that at least two energy storage power supplies adopt power connecting wires for parallel operation and the current energy storage power supplies are connected with the load, and generating a modulation signal based on reference value coding; the reference signal includes at least one of: current, voltage, frequency, phase, amplitude. Therefore, the output power between the energy storage power supplies can be quickly and accurately balanced, the energy storage module accurately and stably supplies electric energy to a high-power load, and the conditions that the energy storage power supplies are burnt out or cannot be supplied due to unbalanced output of the energy storage power supplies are reduced.
In some embodiments, as shown in fig. 2, the energy storage power supply 200 further comprises a demodulation module 104 and a driving module 105, wherein:
the input end of the control module 103 is connected with the output end of the demodulation module 104, and the output end of the control module 103 is connected with the input end of the modulation module 101 and the input end of the driving module 105;
the demodulation module 104 is configured to perform demodulation processing on a carrier signal sent by a previous energy storage power supply to obtain a demodulation signal corresponding to the modulation signal;
the control module 103 is further configured to decode the demodulated signal to obtain a reference value;
and a driving module 105, configured to adjust an output value of the output signal output by the energy storage module 102 based on the reference value.
Here, the demodulation module 104 is configured to demodulate the received carrier signal to obtain a demodulation signal corresponding to a modulation signal sent by an energy storage power supply connected to the load. Modulation and demodulation correspond to each other, and modulation may refer to conversion of data into an analog signal, and demodulation may refer to conversion of an analog signal into data or the like. The modulated signal and the demodulated signal may be signals having the same information, for example, the modulated signal is modulated to obtain a carrier signal, the carrier signal is demodulated to obtain a demodulated signal, and the like. The encoding may refer to converting data into a digital signal, and the decoding may refer to converting a digital signal into data, or the like. For example: the first energy storage power supply obtains a coded parameter value by coding the reference value; modulating the coded parameter value to obtain a modulated parameter value (namely a carrier signal); the modulated parameter values are sent to a second energy storage power supply through a power connecting line; the second energy storage power supply receives the carrier signal and demodulates the carrier signal to obtain a coded parameter value; and decoding the coded parameter value to obtain the parameter value of the parameter signal. In this way, through processing such as coding, modulation, etc., it is helpful to improve the stability of information transmission between the first energy storage power supply and the second energy storage power supply.
The driving module 105 may be configured to control output values of output signals, such as output current and/or output voltage, output by the energy storage module 102 in the energy storage power supply 200. For example: the current voltage value of the output voltage output by the energy storage module in the second energy storage power supply is 29 volts (V), and the control module in the second energy storage power supply determines that the reference voltage value of the reference voltage is 30V, so that the current voltage value of the output voltage output by the energy storage module can be increased through the driving module, that is, the current voltage value can be adjusted from 29V to 30V, so that the current voltage value of the output voltage is equal to the reference voltage value of the reference voltage.
In the embodiment of the disclosure, the energy storage power supply demodulates the carrier signal sent by the last energy storage power supply through the demodulation module to obtain a demodulation signal corresponding to the modulation signal; the control module is used for decoding the demodulation signal to obtain a reference value, so that the driving module can adjust the output value of the output signal output by the energy storage module based on the reference value, and the output power among the energy storage power supplies can be balanced quickly and accurately.
In some embodiments, as shown in fig. 3, modulation module 101 comprises a modulation circuit comprising a first modulation branch 1011 and a second modulation branch 1012, wherein:
the first modulation branch 1011 includes a first MOS transistor, a first inductor, a first capacitor, and a second inductor;
the input end of the first MOS tube is connected with the output end of the control module, the output end of the first MOS tube is connected with the input end of the first inductor, the output end of the first inductor is connected with the input end of the first capacitor, and the output end of the first capacitor is connected with the positive electrode output line of the energy storage module; the second inductor is positioned on the positive output line of the energy storage module, and the output end of the second inductor is connected with the output end of the first capacitor;
the second modulation branch 1012 includes a second MOS transistor, a third inductor, a second capacitor, and a fourth inductor;
the input end of the second MOS tube is connected with the output end of the control module, the output end of the second MOS tube is connected with the input end of a third inductor, the output end of the third inductor is connected with the input end of a second capacitor, and the output end of the second capacitor is connected with a negative electrode output line of the energy storage module; the fourth inductor is positioned on the negative output line of the energy storage module, and the output end of the fourth inductor is connected with the output end of the second capacitor.
Here, through the modulation processing of modulation signal 106 by first modulation branch 1011 and second modulation branch 1012, modulation signal 106 and the output signal output by energy storage module 102 may be superimposed to obtain a carrier signal that can be transmitted on the power connection line. The first modulation branch 1011 and the second modulation branch 1012 form bidirectional modulation, so that modulation signals can be modulated quickly and accurately, and the like.
In the embodiment of the disclosure, the modulation signal is modulated by the first modulation branch and the second modulation branch, so that the carrier signal can be obtained quickly and accurately.
In some embodiments, as shown in fig. 3, the demodulation module 104 includes a demodulation circuit including a first demodulation branch 1041 and a second demodulation branch 1042, wherein:
the first demodulation branch 1041 includes a third capacitor and a first diode;
the input end of the first diode is connected with the anode output line of the energy storage module, the output end of the first diode is connected with the input end of the third capacitor, and the output end of the third capacitor is connected with the input end of the control module;
the second demodulation branch 1042 includes a fourth capacitor and a second diode;
the input end of the second diode is connected with the negative electrode output line of the energy storage module, the output end of the second diode is connected with the input end of the fourth capacitor, and the output end of the fourth capacitor is connected with the input end of the control module.
Here, the carrier signal can be demodulated by the demodulation processing of the first demodulation branch 1041 and the second demodulation branch 1042 to obtain the demodulated signal 107. The first demodulation branch 1041 and the second demodulation branch 1042 form bidirectional demodulation, which can demodulate a carrier signal quickly and accurately.
In the embodiment of the present disclosure, the carrier signal is demodulated by the first demodulation branch and the second demodulation branch, so that the demodulated signal can be obtained quickly and accurately.
In some embodiments, as shown in fig. 4, in the energy storage power supply 300, the control module 103 includes an encoding circuit 1031 and a decoding circuit 1032, where:
the output end of the encoding circuit 1031 is connected to the input end of the modulation module 101, and the input end of the decoding circuit 1032 is connected to the output end of the demodulation module 104;
an encoding circuit 1031 for generating a modulation signal based on the reference value encoding;
the decoding circuit 1032 is configured to decode the demodulated signal to obtain a reference value.
Here, the encoding circuit 1031 may include an increment encoding circuit, an absolute value encoding circuit, a sine wave encoding circuit, and the like, and the decoding circuit 1032 corresponds to the encoding circuit 1031.
In the embodiment of the disclosure, the encoding circuit and the decoding circuit can rapidly and accurately encode or decode signals.
In some embodiments, as shown in fig. 5, in the energy storage power supply 400, the driving module 105 includes a driving circuit 1051 and an inverter circuit 1052, wherein:
the input end of the driving circuit 1051 is connected with the output end of the control module 103, and the inverter circuit 1052 is connected with the output end of the driving circuit 1051 and the output end of the energy storage module 102;
the driving circuit 1051 is configured to amplify the electrical signal output by the control module 103 to obtain an amplified electrical signal;
the inverter circuit 1052 converts the amplified electrical signal output from the driving circuit 1051 into an ac electrical signal.
Here, the Pulse Width Modulation (PWM) circuit 1051 may monitor the output state of the energy storage module and provide a control signal for the power element in the energy storage module, and may be applied to various high power circuits. The driving circuit may control the adjustment value of the output value output by the energy storage module to be equal to the reference value of the reference signal, or to have a certain relationship with the reference value of the reference signal, for example, control the output value of the output current output by the energy storage module to be equal to the reference value of the reference current, control the output value of the output voltage output by the energy storage module to be equal to the reference value of the reference voltage, and the like.
In the embodiment of the disclosure, the energy storage module is controlled by the driving circuit and the inverter circuit to adjust the output value based on the reference value of the reference signal, which is helpful for rapidly and accurately balancing the output power among the energy storage power supplies.
In some embodiments, the control module 103 is comprised of a control circuit 1031, as shown in fig. 3, the inverter circuit 1051 includes an inverter bridge 201 and a capacitive inductor 202, wherein:
the input end of the inverter bridge 201 is connected with the output end of the drive circuit 1051, and the output end of the inverter bridge 201 is connected with the input end of the capacitor inductor 202;
the output end of the capacitor inductor 202 is connected with the output end of the energy storage module 102;
an inverter bridge 201 for converting the amplified electrical signal output by the driving circuit 1051 into an alternating current signal;
and the capacitance inductor 202 is configured to perform filtering processing on the alternating current signal output by the inverter bridge 201 to obtain a filtered alternating current signal.
Here, the inverter bridge 201 may include a full bridge circuit composed of 4 (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET) transistors. The first energy storage power supply and the second energy storage power supply and the load can be connected through a power connecting line, for example, the first energy storage power supply is electrically connected with the power input end of the second energy storage power supply through the power output end of the first energy storage power supply and the power input end of the second energy storage power supply through the power connecting line, the power output end of the second energy storage power supply is electrically connected with the power input end of the load through the power connecting line or a power line carried by the load, and the like. The power connection lines may include a positive connection line (L pole), a negative connection line (N pole), and the like, and may be used to transmit electric energy and control an output value of an output signal of the energy storage module, and the like.
In some embodiments, the number and connection manner of the modulation module, the demodulation module, the control module, the energy storage module, and other modules, as well as the coding circuit and other modules, the input end and the output end of the decoding circuit are not limited herein.
In the embodiment of the disclosure, the output value of the output signal output by the energy storage module can be accurately adjusted through the inverter bridge, the capacitor inductor and other component elements.
An energy storage power supply system according to an embodiment of the present disclosure is provided, as shown in fig. 6, and includes N energy storage power supplies 301 and 302 in any of the embodiments described above, and (N-1) power connection lines 108;
the output end of the energy storage module in the ith energy storage power supply is connected with the input end of the energy storage module in the (i + 1) th energy storage power supply through a power connecting wire;
the master machine energy storage power supply is used for determining a reference value of a reference signal matched with the power value of the load, generating a carrier signal based on the reference value and sending the carrier signal to the slave machine energy storage power supply;
the slave energy storage power supply is used for adjusting the output value of the output signal output by the energy storage module in the slave energy storage power supply based on the carrier signal;
wherein, the value of i is an integer which is more than or equal to 1 and less than or equal to N-1, and N is an integer which is more than 1; the energy storage power supply connected with the load is a host energy storage power supply, and the energy storage power supply connected with the host energy storage power supply is a slave energy storage power supply.
For example: the master energy storage power supply 301 and the slave energy storage power supply 302 are connected in parallel through the power connection line 108 to supply electric energy to the load 303. The power input end 3011 of the master energy storage power supply 301 is connected to the power output end 3021 of the slave energy storage power supply 302, and the power input end 3022 of the slave energy storage power supply 302 may be connected to other slave energy storage power supplies in parallel, and may control the output values of the output signals output by the plurality of slave energy storage power supplies in a droop control manner. The power output terminal 3012 of the host energy storage power supply 301 is connected to the power input terminal of the load 303, and is used for providing the total output power of all the energy storage power supplies to the load 303, and the like.
In the embodiment of the disclosure, the parallel operation connection is performed on the plurality of energy storage power supplies through the parallel operation connecting line, so that electric energy can be provided for a load with larger power, and the output power between the energy storage power supplies can be balanced quickly and accurately.
In some embodiments, the power line connection line is a triple-plug line.
Here, the three patch cords may be respectively connected to a positive connection cord, a negative connection cord, a ground cord, and the like of the energy storage power source. The power connecting line can also be a two-plug wire and the like.
In the embodiment of the disclosure, the energy storage power supply is connected in parallel through the three plug wires, so that the production cost can be reduced.
In some embodiments, the power supplied to the load is equal to the sum of the output power of the energy storage modules in all of the energy storage power sources.
For example: the output power of the energy storage module in the first energy storage power supply is 800 watts (W), the output power of the energy storage module in the second energy storage power supply is 800W, and the total power provided for the load can be 1600W and the like.
In the embodiment of the disclosure, a plurality of energy storage power supplies are connected in parallel, so that a larger total output power can be conveniently and rapidly provided for a load.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present disclosure, the sequence numbers of the above steps/processes do not mean the execution sequence, and the execution sequence of each step/process should be determined by the function and the inherent logic of the step/process, and should not constitute any limitation to the implementation process of the embodiments of the present disclosure. The above-mentioned serial numbers of the embodiments of the present disclosure are merely for description, and do not represent the advantages or disadvantages of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above description is only an embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered by the scope of the present disclosure.
Claims (10)
1. An energy storage power supply, comprising:
the energy storage power supply comprises a control module, a modulation module and an energy storage module;
the control module is used for determining a reference value of a reference signal matched with the power value of a load under the condition that at least two energy storage power supplies adopt power connecting wires for parallel operation and the current energy storage power supplies are connected with the load, and generating a modulation signal based on the reference value code;
the modulation module is used for superposing the modulation signal output by the control module in the energy storage power supply and the output signal output by the energy storage module to obtain a carrier signal;
the energy storage module is used for providing electric energy for the load;
the carrier signal is used for adjusting the output value of an output signal output by an energy storage module in the next energy storage power supply; the reference signal includes at least one of: current, voltage, frequency, phase, amplitude.
2. The energy storage power supply of claim 1, further comprising a demodulation module and a driving module, wherein:
the input end of the control module is connected with the output end of the demodulation module, and the output end of the control module is connected with the input end of the modulation module and the input end of the driving module;
the demodulation module is used for demodulating the carrier signal sent by the previous energy storage power supply under the condition of receiving the carrier signal to obtain a demodulation signal corresponding to the modulation signal;
the control module is further configured to decode the demodulated signal to obtain the reference value;
and the driving module is used for adjusting the output value of the output signal output by the energy storage module based on the reference value.
3. The energy storage power supply of claim 1, wherein the modulation module comprises a modulation circuit comprising a first modulation branch and a second modulation branch, wherein:
the first modulation branch circuit comprises a first MOS (metal oxide semiconductor) tube, a first inductor, a first capacitor and a second inductor;
the input end of the first MOS tube is connected with the output end of the control module, the output end of the first MOS tube is connected with the input end of the first inductor, the output end of the first inductor is connected with the input end of the first capacitor, and the output end of the first capacitor is connected with the positive output line of the energy storage module; the second inductor is positioned on a positive output line of the energy storage module, and the output end of the second inductor is connected with the output end of the first capacitor;
the second modulation branch comprises a second MOS tube, a third inductor, a second capacitor and a fourth inductor;
the input end of the second MOS tube is connected with the output end of the control module, the output end of the second MOS tube is connected with the input end of the third inductor, the output end of the third inductor is connected with the input end of the second capacitor, and the output end of the second capacitor is connected with the negative electrode output line of the energy storage module; the fourth inductor is located on a negative electrode output line of the energy storage module, and an output end of the fourth inductor is connected with an output end of the second capacitor.
4. The energy storage power supply of claim 2, wherein the demodulation module comprises a demodulation circuit comprising a first demodulation branch and a second demodulation branch, wherein:
the first demodulation branch comprises a third capacitor and a first diode;
the input end of the first diode is connected with the positive electrode output line of the energy storage module, the output end of the first diode is connected with the input end of the third capacitor, and the output end of the third capacitor is connected with the input end of the control module;
the second demodulation branch comprises a fourth capacitor and a second diode;
the input end of the second diode is connected with the negative electrode output line of the energy storage module, the output end of the second diode is connected with the input end of the fourth capacitor, and the output end of the fourth capacitor is connected with the input end of the control module.
5. The energy storage power supply of claim 2, wherein the control module comprises an encoding circuit and a decoding circuit, wherein:
the output end of the coding circuit is connected with the input end of the modulation module, and the input end of the decoding circuit is connected with the output end of the demodulation module;
the encoding circuit is used for generating the modulation signal based on the reference value encoding;
the decoding circuit is configured to decode the demodulation signal to obtain the reference value.
6. The energy storage power supply according to claim 2, wherein the driving module comprises a driving circuit and an inverter circuit, wherein:
the input end of the driving circuit is connected with the output end of the control module, and the inverter circuit is connected with the output end of the driving circuit and the output end of the energy storage module;
the drive circuit is used for amplifying the electric signal output by the control module to obtain an amplified electric signal;
and the inverter circuit is used for converting the amplified electric signal output by the driving circuit into an alternating current electric signal.
7. The energy storage power supply of claim 6, wherein the inverter circuit comprises an inverter bridge and a capacitor inductor, and wherein:
the input end of the inverter bridge is connected with the output end of the drive circuit, and the output end of the inverter bridge is connected with the input end of the capacitor inductor;
the output end of the capacitor inductor is connected with the output end of the energy storage module;
the inverter bridge is used for converting the amplified electric signal output by the driving circuit into the alternating current signal;
and the capacitance inductor is used for filtering the alternating current signal output by the inverter bridge to obtain a filtered alternating current signal.
8. An energy storage power supply system, comprising: n energy storage power supplies according to any of claims 1 to 7, (N-1) power connection lines;
the output end of the energy storage module in the ith energy storage power supply is connected with the input end of the energy storage module in the (i + 1) th energy storage power supply through one power connecting wire; the energy storage power supply connected with the load is a host energy storage power supply, and the energy storage power supply connected with the host energy storage power supply is a slave energy storage power supply;
the master energy storage power supply is used for determining a reference value of a reference signal matched with the power value of the load, generating a carrier signal based on the reference value and sending the carrier signal to the slave energy storage power supply;
the slave energy storage power supply is used for adjusting the output value of an output signal output by an energy storage module in the slave energy storage power supply based on the carrier signal;
wherein the value of i is an integer which is more than or equal to 1 and less than or equal to N-1, and N is an integer which is more than 1.
9. The system of claim 8, wherein the power line connection is a three-wire connection.
10. The system of claim 8, wherein the power supplied to the load is equal to the sum of the output power of the energy storage modules in all of the energy storage power sources.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222579556.3U CN218473019U (en) | 2022-09-28 | 2022-09-28 | Energy storage power supply and energy storage power supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222579556.3U CN218473019U (en) | 2022-09-28 | 2022-09-28 | Energy storage power supply and energy storage power supply system |
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