CN216564630U - Power supply system and energy storage inverter - Google Patents
Power supply system and energy storage inverter Download PDFInfo
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- CN216564630U CN216564630U CN202123014412.5U CN202123014412U CN216564630U CN 216564630 U CN216564630 U CN 216564630U CN 202123014412 U CN202123014412 U CN 202123014412U CN 216564630 U CN216564630 U CN 216564630U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model discloses a power supply system and an energy storage inverter, wherein the power supply system comprises: the input end of the first power supply module is connected with the power grid and the energy storage module, and the output end of the first power supply module is connected with the load module; the input end of the second power supply module is connected with the energy storage module and the first power supply module, and the output end of the second power supply module is connected with the control module; when the power supply system is off the grid and the electric quantity of the energy storage module is lower than a preset threshold value, the energy storage module is disconnected with the first power supply module, and the energy storage module is communicated with the second power supply module to supply power to the control module. The power supply system provided by the utility model is additionally provided with the second power supply module, and the second power supply module supplies power to the control module when the power supply system is off-grid and the electric quantity of the energy storage module is too low, so that the power supply system can reduce the consumption of electric energy in a standby state, prolong the standby time, and ensure that the whole power supply system can smoothly enter a normal working mode when the power supply of a power grid is normal.
Description
Technical Field
The utility model relates to the field of power consumption, in particular to a power supply system and an energy storage inverter.
Background
Along with the complexity and diversification of the power utilization environment, the performance of the energy storage inverter is continuously optimized, and the energy storage inverter gradually develops towards the direction of small volume, small standby power and high working efficiency.
At present, the energy storage inverter continuously outputs the voltage after inverting the voltage during working and keeps an inversion online state during standby, so that the energy storage inverter has large power consumption and short standby time. The energy storage inverter has high power consumption and short standby time, so that the energy storage inverter can consume the energy stored in the energy storage inverter in the off-grid low-power state, and the energy storage inverter cannot enter a normal working state when the power grid is connected, so that the whole energy storage inverter is in a breakdown state.
SUMMERY OF THE UTILITY MODEL
The utility model provides a power supply system and an energy storage inverter, aiming at solving the technical problems of large power consumption and short standby time of the energy storage inverter in an off-grid low-power state in the prior art.
The technical scheme adopted by the utility model is as follows:
the utility model provides a power supply system and an energy storage inverter, wherein the power supply system comprises: the input end of the first power supply module is connected with the power grid and the energy storage module, and the output end of the first power supply module is connected with the load module; the input end of the second power supply module is connected with the energy storage module and the first power supply module, and the output end of the second power supply module is connected with the control module; when the power supply system is off-grid and the electric quantity of the energy storage module is lower than a preset threshold value, the energy storage module is disconnected with the first power supply module, and the energy storage module is communicated with the second power supply module to supply power to the control module.
Further, when the power grid is electrified, the first power supply module is communicated with the load module and the control module to supply power to the load module and the control module.
Further, when the power supply system is off-grid and the energy storage module is higher than a preset threshold, the first power supply module is communicated with the energy storage module, the load module and the control module to supply power to the load module and the control module.
Further, the energy storage module comprises: the device comprises an energy storage unit for storing electric energy and an electric quantity detection unit for detecting the electric quantity of the energy storage unit.
Further, the first power module and the second power module each include: and the voltage conversion unit converts the output voltage of the energy storage unit to be matched with the input voltages of the first power supply module and the second power supply module.
In one embodiment, the first power module includes: 24V power supply, 5V power supply, the load module includes: a sampling unit; the 24V power input end is connected the electric wire netting with energy storage module, output are connected the 5V power, the output of 5V power is connected the sampling unit, the sampling unit gathers electric wire netting voltage and gives electric wire netting voltage transmission for control module.
In one embodiment, the second power module includes: low-power consumption 5V power, the control module includes: the DSP controller, the negative pole of diode D1 is connected to the input of low-power consumption 5V power, and the anodal of diode D1 is connected the output of 5V power, the output of low-power consumption 5V power is connected the DSP controller, the DSP controller basis the electric wire netting voltage control the 24V power the 5V power with the low-power consumption 5V power.
In one embodiment, the load module further comprises: and the driving unit and the relay are connected with the 24V power supply output end.
In one embodiment, the output end of the low-power consumption 5V power supply is further connected with a communication module, and the communication module is connected with the control module for communication.
And the energy storage inverter is used for supplying power by using the power supply system.
Compared with the prior art, the power supply system provided by the utility model is additionally provided with the second power supply module, and the second power supply module supplies power to the control module when the power supply system is off the grid and the electric quantity of the energy storage module is too low, so that the power supply system can reduce the consumption of electric energy when keeping a standby state, prolong the standby time and ensure that the whole power supply system can smoothly enter a normal working mode when the power supply of the grid is normal.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a power supply system according to the present invention;
FIG. 2 is a schematic structural diagram of a power supply system according to an embodiment of the present invention;
1. a first power supply module; 2. a second power supply module; 3. an energy storage module; 4. a load module; 5. a control module; 6. and (4) a power grid.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Energy storage inverters have been widely used in various situations due to their advantages. But what is not negligible is the problem that the energy storage inverter has large power consumption and short standby time because the inverter needs to be kept in an on-line state during standby. The energy storage inverter has high power consumption and short standby time, so that the energy storage inverter can consume the electric quantity stored in the energy storage inverter in the off-grid low-electric-quantity state, and the energy storage inverter can not enter a normal working state when the power grid is connected, so that the whole energy storage inverter is in a breakdown state.
In view of the above-mentioned technical problem of short standby time of energy storage inverter in off-grid low-power state, the present application provides a power supply system applicable to an energy storage inverter, which includes:
first power module 1: the input end of the first power supply module is connected with the power grid 6 and the energy storage module 3, and the output end of the first power supply module is connected with the load module 4;
the second power supply module 2: the input end of the second power supply module is connected with the energy storage module 3 and the first power supply module 1, and the output end of the second power supply module is connected with the control module 5;
the energy storage module 3: the input end is connected with a power grid 6 and supplies adaptive electric energy to the first power supply module 1 and the second power supply module 2 in an off-grid state;
particularly, when the power of the energy storage module is lower than a preset threshold value when the power is off the grid, the connection between the energy storage module and the first power module is cut off, the energy storage module and the second power module are connected, the first power module and the load module stop working, and the second power module starts to enter a working state to convert the electric energy of the energy storage module and then supply power to the control module.
When the power grid is accessed, the first power supply module directly processes the energy of the power grid and then supplies power to the load module and the control module, and the second power supply module does not work; when the power of the energy storage module is higher than a preset threshold value while the power is off-grid, the first power supply module processes the electric energy of the energy storage module and then supplies power to the load module and the control module, and the second power supply module does not work; when the power of the energy storage module is lower than a preset threshold value, the first power module and the load module stop working, and only the second power module starts working to process the power of the energy storage module and then transmit the processed power to the control module. The power supply system provided by the utility model is specially additionally provided with the second power supply module to supply power to the control module when the power supply system is off-grid and the electric quantity of the energy storage module is too low, so that the power consumption is reduced while the standby state is kept, the standby time is prolonged, and the whole power supply system can smoothly enter a normal working mode when the power supply of a power grid is normal.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 2, in the power supply system proposed by the present invention, the first power supply module 1 includes: 24V power, 5V power, second power module 2 includes: low-power consumption 5V power, control module 5 includes: DSP controller, load module 4 includes: sampling unit, drive unit, relay. Furthermore, the input end of the 24V power supply is connected with the output ends of the power grid and the energy storage module, the output end of the 24V power supply is connected with the 5V power supply, and meanwhile, the output end of the 24V power supply is also connected with a relay and a driving unit. The output of energy storage module is connected to the input of low-power consumption 5V power, and the input of low-power consumption 5V power still is connected with the output of 5V power in addition, and specific both are connected through diode D1, and low-power consumption 5V power, anodal 5V power of connecting are connected to diode D1's negative pole, and the DSP controller is connected to the output of low-power consumption 5V power, and the output of low-power consumption 5V power still is connected with communication module.
Further, the energy storage module 3 includes: store the energy storage unit of electric wire netting electric energy, electric quantity detecting element is used for detecting the electric quantity of energy storage unit, and 24V power and low-power consumption 5V power are switching power supply, inside is equipped with voltage conversion unit, 24V power can convert the output voltage of energy storage unit and grid voltage into 24V with self adaptation and with the 5V of 5V power adaptation, low-power consumption 5V power can convert the output voltage of energy storage unit into the 5V with self adaptation.
The above is the specific structure of the power supply system in this embodiment, and the following is the operation mode of the power supply system:
when the sampling unit collects that the power grid voltage is normal, the sampling unit transmits the collected power grid voltage information to the DSP controller, and the DSP controller sends control signals to the low-power-consumption 5V power supply and the 24V power supply respectively according to the collected power grid voltage information, so that the low-power-consumption 5V power supply does not work and the 24V power supply works. At the moment, the 24V power supply converts the voltage of the power grid into 24V voltage and then transmits the 24V voltage to the relay and the driving unit to supply power to the relay and the driving unit; on the other hand, the 24V power supply supplies 5V power. Then the 5V power supply converts the received 24V voltage into 5V voltage and transmits the 5V voltage to the sampling unit, and the DSP controller and the communication module are powered by the diode D1 (at this time, the low-power consumption 5V power supply does not work). At this time, if the electric quantity of the energy storage module is 100%, the energy storage module does not work, and if the electric quantity of the energy storage module is not 100%, the energy storage module is charged by the power grid.
Similarly, when the sampling unit collects no voltage of the power grid, and the electric quantity detection unit in the energy storage module detects that the electric quantity of the energy storage unit is larger than or equal to a preset threshold value (10%), the DSP controller controls the low-power consumption 5V power supply to be out of work and the 24V power supply to work according to the information collected by the sampling unit. At the moment, the 24V power supply converts the voltage of the power grid into 24V voltage and then transmits the 24V voltage to the relay and the driving unit to supply power to the relay and the driving unit; on the other hand, the 24V power supply supplies 5V power. Then the 5V power supply converts the received 24V voltage into 5V voltage and transmits the 5V voltage to the sampling unit, and the DSP controller and the communication module are powered by the diode D1 (at this time, the low-power consumption 5V power supply does not work). At this time, if the electric quantity of the energy storage module is 100%, the energy storage module does not work, and if the electric quantity of the energy storage module is not 100%, the energy storage module is charged by the power grid. This mode of operation and the mode of operation mentioned in the preceding paragraph are normal modes of operation.
In addition, it is voltage-free to gather the electric wire netting at the sampling unit, and when electric quantity detecting element in the energy storage module detected the electric quantity of energy storage unit and is less than predetermineeing threshold value (10%), the DSP controller gives low-power consumption 5V power, 24V power sends control signal, make low-power consumption 5V power work, 24V power is out of work, only this moment low-power consumption 5V power work with energy storage battery after the conversion electric energy transmission to communication module, the DSP controller, for communication module and DSP controller power supply, and other parts all stop work. The working mode at this moment is a low-power consumption working mode, and in the mode, the power supply system closes most of the components, so that the consumed electric energy is greatly reduced, and the standby time is prolonged.
When the power supply of the power grid is recovered, the 24V power supply starts to work, the sampling unit starts to work, when the sampling unit acquires that the voltage of the power grid is normal, the sampling information is sent to the DSP controller, the DSP controller sends a control instruction to the low-power consumption 5V power supply and the 24V power supply, the power supply system is made to exit from a low-power consumption mode, and the power grid starts to charge the energy storage module.
The utility model also provides an energy storage inverter using the power supply system, which can reduce energy consumption and increase standby time by reducing the working number of modules of an internal power supply system in an off-grid and low-power state.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A power supply system comprising: first power module, electric wire netting and energy storage module, output connection load module are connected to first power module's input, its characterized in that still includes: the input end of the second power supply module is connected with the energy storage module and the first power supply module, and the output end of the second power supply module is connected with the control module; when the power supply system is off-grid and the electric quantity of the energy storage module is lower than a preset threshold value, the energy storage module is disconnected with the first power supply module, and the energy storage module is communicated with the second power supply module to supply power to the control module.
2. The power system of claim 1, wherein the first power module communicates with the load module and the control module to provide power to the load module and the control module when the grid voltage is normal.
3. The power system of claim 1, wherein when the power system is off-grid and the power of the energy storage module is greater than or equal to a preset threshold, the first power module is connected to the energy storage module, the load module and the control module to supply power to the load module and the control module.
4. The power supply system of claim 1, wherein the energy storage module comprises: the device comprises an energy storage unit for storing electric energy and an electric quantity detection unit for detecting the electric quantity of the energy storage unit.
5. The power system of claim 4, wherein the first power module and the second power module each comprise: and the voltage conversion unit converts the output voltage of the energy storage unit to be matched with the input voltages of the first power supply module and the second power supply module.
6. The power system of claim 1, wherein the first power module comprises: 24V power supply, 5V power supply, the load module includes: a sampling unit; the 24V power input end is connected the electric wire netting with energy storage module, output are connected the 5V power, the output of 5V power is connected the sampling unit, the sampling unit gathers electric wire netting voltage and gives electric wire netting voltage transmission for control module.
7. The power system of claim 6, wherein the second power module comprises: low-power consumption 5V power, the control module includes: the input end of the low-power-consumption 5V power supply is connected with the cathode of a diode D1, the anode of a diode D1 is connected with the output end of the 5V power supply, the output end of the low-power-consumption 5V power supply is connected with the DSP controller, and the DSP controller controls the 24V power supply and the low-power-consumption 5V power supply according to the voltage of the power grid.
8. The power supply system of claim 6, wherein the load module further comprises: and the driving unit and the relay are connected with the 24V power supply output end.
9. The power system of claim 7, wherein the output end of the low-power consumption 5V power supply is further connected with a communication module, and the communication module is in communication with the control module.
10. Energy storage inverter, characterized in that it is powered using a power supply system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123014412.5U CN216564630U (en) | 2021-12-02 | 2021-12-02 | Power supply system and energy storage inverter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123014412.5U CN216564630U (en) | 2021-12-02 | 2021-12-02 | Power supply system and energy storage inverter |
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| Publication Number | Publication Date |
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| CN216564630U true CN216564630U (en) | 2022-05-17 |
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| CN202123014412.5U Active CN216564630U (en) | 2021-12-02 | 2021-12-02 | Power supply system and energy storage inverter |
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- 2021-12-02 CN CN202123014412.5U patent/CN216564630U/en active Active
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