Intelligent air energy storage system

Abstract

The utility model provides an intelligent air energy storage system, and belongs to the technical field of air energy storage. The intelligent air energy storage system comprises a solar module, an electric quantity monitoring module, a first switch module, a compressor, an air storage tank, a control module and a generator. The solar module is used for connecting a DC bus. The input end of the electric quantity monitoring module is used for being connected with a direct-current bus, the output end of the electric quantity monitoring module is connected with the control module, and the electric quantity monitoring module is configured to detect the voltage of the direct-current bus; the first end of the first switch module is used for connecting a direct-current bus, the second end of the first switch module is connected with the compressor, the third end of the first switch module is connected with the control module, the compressor is connected with an air inlet of the air storage tank through a pipeline, and an air outlet of the air storage tank is connected with the first end of the generator through a pipeline. The second end of the generator is connected with a DC bus. The problem that it is difficult to meet the stable energy demand by directly supplying power through solar energy can be solved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of air energy storage, and particularly relates to an intelligent air energy storage system. BACKGROUND

[0002] With the acceleration of global industrialization, the demand for energy continues to rise, and the large consumption of traditional energy such as coal and oil has brought serious environmental problems, such as global warming caused by greenhouse gas emissions, environmental pollution, etc., and the reserves of traditional energy are decreasing, and the energy crisis is gradually highlighted. Under this background, the development of renewable and clean energy has become the key to solving the energy dilemma. Solar energy, as a very abundant and clean renewable energy, has great development potential. However, solar energy has the characteristics of intermittency and instability, and its power generation is significantly affected by weather, day and night, etc., which makes it difficult to meet the stable energy demand by relying on solar power alone. CONTENT OF THE INVENTION

[0003] Embodiments of the present disclosure provide an intelligent air energy storage system to solve the problem that it is difficult to meet the stable energy demand by relying on solar power alone.

[0004] Embodiments of the present disclosure provide an intelligent air energy storage system, comprising: a solar module, an electric quantity monitoring module, a first switch module, a compressor, a gas tank, a control module and a generator;

[0005] The solar module is used to connect a direct current bus, and the solar module is configured to convert solar energy into electrical energy;

[0006] The input end of the electric quantity monitoring module is used to connect the direct current bus, the output end of the electric quantity monitoring module is connected to the control module, and the electric quantity monitoring module is configured to detect the voltage of the direct current bus;

[0007] The first end of the first switch module is used to connect the direct current bus, the second end of the first switch module is connected to the compressor, the third end of the first switch module is connected to the control module, the compressor is connected to the gas inlet of the gas tank through a pipeline, the gas outlet of the gas tank is connected to the first end of the generator through a pipeline, and the second end of the generator is used to connect the direct current bus.

[0008] In an exemplary embodiment of the present disclosure, further comprising: a pressure detection module and a solenoid valve;

[0009] The pressure detection module is connected to the control module, and the pressure detection module is configured to detect the gas pressure in the gas tank;

[0010] The solenoid valve is arranged on the pipeline of the gas inlet and the gas outlet of the gas tank, and the solenoid valve is controlled by the control module.

[0011] In an example embodiment of the present disclosure, further comprising: a first inverter;

[0012] The first end of the first inverter is connected to the second end of the generator, the second end of the inverter is used to connect a DC bus, and the control end of the inverter is connected to the control module.

[0013] In an example embodiment of the present disclosure, further comprising: an energy storage module and a second inverter;

[0014] The first end of the second inverter is used to connect a DC bus, the second end of the second inverter is connected to the energy storage module, and the control end of the second inverter is connected to the control module.

[0015] In an example embodiment of the present disclosure, further comprising: an energy storage detection module;

[0016] The first end of the energy storage detection module is connected to the energy storage module, and the second end of the energy storage detection module is connected to the control module.

[0017] In an example embodiment of the present disclosure, further comprising: a comparison module, a second switch module and a charging module;

[0018] The first input end of the comparison module is connected to the output end of the power monitoring module, the second input end of the comparison module is used to connect a reference voltage, the output end of the comparison module is connected to the control end of the second switch module, the first end of the second switch module is connected to the solar module, and the second end of the second switch module is connected to the energy storage module.

[0019] In an example embodiment of the present disclosure, further comprising: a fault alarm module;

[0020] The fault alarm module is connected to the control module, and the fault alarm module is configured to detect the running state of the intelligent air energy storage system.

[0021] In an example embodiment of the present disclosure, further comprising: a communication module and a monitoring terminal;

[0022] The control module is in communication connection with the monitoring terminal through the communication module.

[0023] The intelligent air energy storage system provided by the embodiments of the present disclosure has the beneficial effects that: the embodiments of the present disclosure directly convert abundant solar energy into electric energy through a solar module, which is not only environmentally friendly and clean, but also reduces the dependence on traditional energy. The electric quantity monitoring module detects the direct current bus voltage in real time to ensure stable operation of the system, avoid overcharging or overdischarging, and improve the accuracy of energy management. The first switch module intelligently controls the flow of electric energy to the compressor under the instruction of the control module, drives the compressor to compress and store air in the air tank, and this process realizes indirect storage of electric energy. When electric energy is needed, the air tank releases high-pressure air to drive the generator to generate electricity, and feeds back to the direct current bus, which realizes flexible scheduling and self-sufficiency of energy, effectively improves the energy utilization efficiency, and reduces the energy cost. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is a structural schematic diagram of an intelligent air energy storage system provided by the embodiments of the present disclosure;

[0026] Figure 2 is a structural schematic diagram of another intelligent air energy storage system provided by the embodiments of the present disclosure;

[0027] Figure 3 is a structural schematic diagram of still another intelligent air energy storage system provided by the embodiments of the present disclosure;

[0028] Figure 4 is a structural schematic diagram of still another intelligent air energy storage system provided by the embodiments of the present disclosure. DETAILED DESCRIPTION

[0029] In order to make the personnel in the technical field better understand the present scheme, the technical solutions in the embodiments of the present scheme will be clearly described below in combination with the drawings in the embodiments of the present scheme. Obviously, the described embodiments are part of the embodiments of the present scheme, rather than all the embodiments. Based on the embodiments in the present scheme, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present scheme.

[0030] The terms "include," "includes" or "including," as well as any variations thereof, in the DETAILED DESCRIPTION, the claims and the accompanying drawings refer to a non-exclusive inclusion such that they do not have the exclusivity of a field of elements which they refer to, and they do not limit the field of elements included therein only to the examples given herein. In addition, the terms "first" and "second" and the like are used to distinguish different objects, not to describe a particular order.

[0031] The implementation of the present disclosure is described in detail below in combination with specific drawings:

[0032] Figure 1 A structural schematic diagram of an intelligent air energy storage system is provided for the embodiments of the present disclosure. Referring to Figure 1 , the air energy storage includes a solar module, an electric quantity monitoring module, a first switch module, a compressor, an air tank, a control module and a generator; the solar module is used to connect a direct current bus, and the solar module is configured to convert solar energy into electric energy; an input end of the electric quantity monitoring module is used to connect the direct current bus, an output end of the electric quantity monitoring module is connected to the control module, and the electric quantity monitoring module is configured to detect the voltage of the direct current bus; a first end of the first switch module is used to connect the direct current bus, a second end of the first switch module is connected to the compressor, a third end of the first switch module is connected to the control module, the compressor is connected to an air inlet of the air tank through a pipeline, an air outlet of the air tank is connected to a first end of the generator through a pipeline, and a second end of the generator is used to connect the direct current bus.

[0033] In the present embodiment, the solar module can convert solar energy into electric energy and input the converted electric energy into the direct current bus, thereby providing an energy source for the power consumption system. For example, when the sunlight is sufficient, the solar module continuously converts the received sunlight energy into electric energy and delivers the electric energy to the direct current bus.

[0034] The electric quantity monitoring module can monitor the voltage of the direct current bus, the input end of the electric quantity monitoring module is connected to the direct current bus, the electric quantity monitoring module can acquire voltage data in real time, and the data is sent to the control module.

[0035] One end of the first switch module is connected to the direct current bus to obtain electric energy, and the other two ends are respectively connected to the compressor and the control module. The control module can control the first switch module according to the voltage of the direct current bus detected by the electric quantity monitoring module. For example, when the voltage of the direct current bus reaches a certain set value, it means that the electric energy is sufficient at this time, and the control module can send a control instruction to the first switch module to control the first switch module to turn on the compressor, so that the electric energy is added to the compressor to drive the compressor to start working.

[0036] After receiving electrical energy, the compressor starts operating, compressing outside air through pipes and delivering it to an air storage tank for storage. This allows for the storage of electrical energy in the form of compressed air for later use. During peak electricity demand periods, when the voltage on the DC bus is insufficient (for example, at night or on cloudy days when the solar modules cannot provide enough power), the compressed air in the storage tank flows through the outlet and pipes to one end of the generator, driving it to operate. The other end of the generator is connected to the DC bus, and driven by the compressed air, it generates electricity and sends it back to the DC bus, achieving energy release, recovery, and reuse. This creates a complete energy cycle loop for the entire system.

[0037] In this embodiment, the overall working principle of the intelligent air energy storage system is as follows: First, the solar energy module converts solar energy into electrical energy and collects it on the DC bus. The power monitoring module detects the DC bus voltage in real time and feeds it back to the control module. The control module controls the first switch module according to the voltage situation. When there is sufficient power, the compressor is turned on to compress air and store it in the air tank. When electricity is needed, the compressed air in the air tank drives the generator to generate electricity, and the electrical energy is then fed back to the DC bus. This realizes the energy conversion, storage and reuse cycle from solar energy to electrical energy, from electrical energy to compressed air energy, and from compressed air energy back to electrical energy.

[0038] As can be seen from the above, this embodiment directly converts abundant solar energy into electrical energy through a solar module, which is not only environmentally friendly and clean but also reduces dependence on traditional energy sources. The power monitoring module monitors the DC bus voltage in real time to ensure stable system operation, avoid overcharging or over-discharging, and improve the accuracy of energy management. Under the command of the control module, the first switching module intelligently regulates the flow of electrical energy to the compressor, driving it to compress air and store it in the air tank. This process realizes indirect storage of electrical energy. When electrical energy is needed, the air tank releases high-pressure air to drive the generator to generate electricity, feeding it back to the DC bus. This achieves flexible energy scheduling and self-sufficiency, effectively improving energy utilization efficiency and reducing energy costs.

[0039] like Figure 2 As shown, in one embodiment of this disclosure, it further includes: a pressure detection module and a solenoid valve; the pressure detection is connected to the control module, and the pressure detection module is configured to detect the gas pressure in the gas storage tank; solenoid valves are provided on the pipes of the gas inlet and outlet of the gas storage tank, and the solenoid valves are controlled by the control module.

[0040] In this embodiment, the pressure detection module is used to monitor the gas pressure in the gas storage tank in real time and convert the detected pressure signal into a corresponding electrical signal and send it to the control module.

[0041] For example, during compressed air storage, when the pressure detection module detects that the pressure inside the air tank is gradually increasing, approaching or reaching the system's set maximum safe pressure value, the control module can promptly adjust the compressor's operating status or take corresponding safety measures to prevent the air tank from becoming dangerous due to overpressure. Simultaneously, the pressure value of the air tank can also be used to determine the remaining amount of gas in the tank.

[0042] In this embodiment, solenoid valves are installed on the inlet and outlet pipes of the air storage tank, and both solenoid valves are controlled by the control module. When the control module determines, based on the detection results from the power monitoring module, that there is sufficient electrical energy and compressed air needs to be stored, the control module can send an opening command to the inlet solenoid valve, allowing outside air to smoothly enter the compressor, be compressed, and stored in the air storage tank. Conversely, when it is necessary to release the compressed air from the air storage tank to drive the generator, the control module can control the outlet solenoid valve to open, allowing compressed air to flow to the generator. Through precise control of the solenoid valves, the compressed air storage and release process can be precisely regulated, improving the reliability and flexibility of the system operation.

[0043] As can be seen from the above, the pressure detection module in this embodiment can monitor the pressure of the air storage tank in real time, ensuring the safe operation of the system and preventing dangers such as overpressure. Under the control of the control module, the solenoid valve precisely controls the intake and exhaust of air, making compressed air storage and release more precise and efficient, improving the flexibility and reliability of system energy conversion and scheduling, and optimizing overall performance.

[0044] like Figure 2 As shown, in one embodiment of this disclosure, it further includes: a first inverter; a first terminal of the first inverter is connected to a second terminal of the generator, the second terminal of the inverter is used to connect to a DC bus, and the control terminal of the inverter is connected to a control module.

[0045] In this embodiment, the generator produces alternating current (AC) driven by compressed air released from the gas storage tank. Therefore, the electrical energy output by the generator cannot be directly sent to the DC bus. For this reason, a first inverter is added between the generator and the DC bus in this embodiment.

[0046] The first inverter converts AC power into DC power suitable for the DC bus, and then transmits the converted DC power back to the DC bus via the second terminal. In actual operation, the control module can dynamically adjust according to the overall power demand of the system, the voltage status of the DC bus, and other operating parameters to ensure that the inverter output voltage and current meet the requirements of the DC bus, thereby ensuring the continuity and reliability of energy conversion and transmission throughout the system.

[0047] like Figure 3As shown, in one embodiment of this disclosure, it further includes: an energy storage module and a second inverter; the first end of the second inverter is used to connect to the DC bus, the second end of the second inverter is connected to the energy storage module, and the control end of the second inverter is connected to the control module.

[0048] In this embodiment, the energy storage module can be a battery, and the second inverter can be a bidirectional inverter.

[0049] The first terminal of the second inverter is connected to the DC bus to obtain electrical energy from the DC bus. Under the control of the control module, the second inverter can convert the DC power on the DC bus into a form of electrical energy suitable for charging energy storage modules (such as batteries), and charge the energy storage modules through its second terminal.

[0050] In this embodiment, when solar energy is abundant or there is a surplus of electrical energy in other parts of the system, the solar module can store the excess electrical energy in the battery, further enhancing the system's energy storage capacity and energy allocation flexibility. For example, during the day when sunlight is strong and electricity demand is low, the electrical energy converted from a large amount of solar energy can not only drive the compressor's energy storage but also be stored in the battery via the second inverter. When solar energy is insufficient, the storage capacity of the air tank is limited, or the system's electrical load suddenly increases, the electrical energy in the battery can be converted into a suitable form of electrical energy by the inverter and released to the DC bus to supplement the system's power, maintain the system's stable operation, improve the entire intelligent air energy storage system's ability to cope with various energy supply and demand conditions, and ensure the reliability and continuity of energy supply.

[0051] like Figure 3 As shown, in one embodiment of this disclosure, it further includes: an energy storage detection module; a first end of the energy storage detection module is connected to the energy storage module, and a second end of the energy storage detection module is connected to the control module.

[0052] In this embodiment, the energy storage detection module detects the power level of the energy storage module and sends the detection result to the control module. The control module can send a control signal to the second inverter based on the remaining power level of the energy storage module and the current power usage of the DC bus. When the energy storage module's power level is low and there is surplus power on the DC bus, the control module sends a signal to the second inverter to initiate the operation of converting DC bus power to charge the energy storage module. When the energy storage module's power level is close to saturation, the control module instructs the second inverter to stop charging to prevent overcharging. Conversely, when the system's power demand is high and the energy storage module has power to release, the control module controls the second inverter to convert the energy storage module's power and supply it to the DC bus. When the energy storage module's power level drops to a threshold that may affect its lifespan or the system's stable operation, the control module stops the discharge command to avoid over-discharge.

[0053] As can be seen from the above, this embodiment ensures the efficient and safe operation of the energy storage module through the energy storage detection module, optimizes the energy management and allocation strategy of the entire system, and improves the overall stability, reliability and service life of the system.

[0054] like Figure 4 As shown, in one embodiment of this disclosure, it further includes: a comparison module, a second switch module, and a charging module; the first input terminal of the comparison module is connected to the output terminal of the power monitoring module, the second input terminal of the comparison module is used to connect to the reference voltage, the output terminal of the comparison module is connected to the control terminal of the second switch module, the first terminal of the second switch module is connected to the solar module, and the second terminal of the second switch module is connected to the energy storage module.

[0055] In this embodiment, the power monitoring module continuously monitors the DC bus voltage and transmits the voltage value to the first input terminal of the comparison module. The second input terminal of the comparison module is connected to a pre-set reference voltage. The comparison module compares and analyzes these two voltage values. When the DC bus voltage measured by the power monitoring module is higher than the reference voltage, it indicates that the electrical energy generated by the solar module is sufficient. The comparison module outputs a corresponding control signal (such as a high level) to the control terminal of the second switch module, causing the second switch module to connect its first and second terminals. The electrical energy of the solar module can then be transferred to the energy storage module for charging through the second switch module, thereby effectively storing excess electrical energy, avoiding energy waste, and preparing for subsequent energy needs. When the DC bus voltage is lower than the reference voltage, the comparison module outputs different control signals to keep the second switch module open, ensuring that the entire intelligent air energy storage system can flexibly and intelligently allocate and schedule energy according to the real-time power status, improving the overall energy utilization efficiency and operational stability of the system.

[0056] The charging module can stabilize the charging voltage or current of the energy storage module.

[0057] As can be seen from the above, this embodiment, by comparing the power monitoring module with the reference voltage and controlling the opening and closing of the second switch module, can precisely regulate the charging timing of the solar module to the energy storage module. This avoids energy waste, optimizes energy distribution, improves system energy storage efficiency, and enhances the stability and reliability of the intelligent air energy storage system.

[0058] like Figure 4 As shown, in one embodiment of this disclosure, it further includes: a fault alarm module; the fault alarm module is connected to the control module, and the fault alarm module is configured to detect the operating status of the intelligent air energy storage system.

[0059] In this embodiment, the fault alarm module is connected to the control module. The fault alarm module can monitor the key components and overall operating status of the intelligent air energy storage system in real time through various sensors and detection methods.

[0060] For example, the fault alarm module can monitor the power generation efficiency of the solar module, the data accuracy of the power monitoring module, the operating parameters of the compressor and generator (such as temperature, speed, vibration, etc.), the pressure stability of the gas storage tank, the circuit connectivity and electrical performance of each switching module and inverter, and the charging and discharging status of the energy storage module. Once any parameter deviates from the normal range or an abnormal situation is detected during monitoring, the fault alarm module can immediately transmit the fault information to the control module. Upon receiving the fault information, the control module can take emergency control measures, such as stopping the operation of the relevant faulty equipment to prevent further damage or danger; or trigger the fault alarm module to issue an alarm signal, which can be in the form of an audible alarm, a visual alarm, or a remote notification, so that maintenance personnel can be promptly informed of the system fault and carry out repairs. This ensures the safe, stable, and efficient operation of the entire intelligent air energy storage system, reduces downtime and losses caused by faults, and improves the maintainability and reliability of the system.

[0061] like Figure 4 As shown, in one embodiment of this disclosure, it further includes: a communication module and a monitoring terminal; the control module is communicatively connected to the monitoring terminal through the communication module.

[0062] In this embodiment, the communication module can employ wired (e.g., Ethernet) or wireless (e.g., Wi-Fi, Bluetooth, 4G / 5G, etc.) communication technologies. The monitoring terminal can be a computer, mobile phone, or dedicated monitoring equipment, which receives and displays this data, enabling maintenance personnel to remotely monitor the system's operational status in real time.

[0063] Maintenance personnel can also send control commands to the control module through the monitoring terminal and communication module, such as adjusting the system operation mode, starting or stopping specific equipment, to achieve remote monitoring and management of the intelligent air energy storage system. This reduces the workload and cost of manual on-site inspection and operation, helps to promptly identify and handle problems in system operation, and ensures stable system operation and performance optimization.

[0064] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. An intelligent air energy storage system, characterized in that, include: Solar module, power monitoring module, first switch module, compressor, gas storage tank, control module and generator; The solar module is used to connect to the DC bus, and the solar module is configured to convert solar energy into electrical energy. The input terminal of the power monitoring module is used to connect to the DC bus, and the output terminal of the power monitoring module is connected to the control module. The power monitoring module is configured to detect the voltage of the DC bus. The first end of the first switch module is used to connect to the DC bus, the second end of the first switch module is connected to the compressor, the third end of the first switch module is connected to the control module, the compressor is connected to the air inlet of the air storage tank through a pipe, the air outlet of the air storage tank is connected to the first end of the generator through a pipe, and the second end of the generator is used to connect to the DC bus.

2. The intelligent air energy storage system as described in claim 1, characterized in that, Also includes: Pressure detection module and solenoid valve; The pressure detection is connected to the control module, and the pressure detection module is configured to detect the gas pressure in the gas storage tank. The solenoid valves are installed on the inlet and outlet pipes of the gas storage tank, and the solenoid valves are controlled by the control module.

3. The intelligent air energy storage system as described in claim 1, characterized in that, Also includes: First inverter; The first terminal of the first inverter is connected to the second terminal of the generator, the second terminal of the inverter is used to connect to the DC bus, and the control terminal of the inverter is connected to the control module.

4. The intelligent air energy storage system as described in claim 1, characterized in that, Also includes: Energy storage module and second inverter; The first terminal of the second inverter is used to connect to the DC bus, the second terminal of the second inverter is connected to the energy storage module, and the control terminal of the second inverter is connected to the control module.

5. The intelligent air energy storage system as described in claim 4, characterized in that, Also includes: Energy storage detection module; The first end of the energy storage detection module is connected to the energy storage module, and the second end of the energy storage detection module is connected to the control module.

6. The intelligent air energy storage system as described in claim 4, characterized in that, Also includes: The module consists of a comparator module, a second switch module, and a charging module. The first input terminal of the comparison module is connected to the output terminal of the power monitoring module, the second input terminal of the comparison module is used to connect to the reference voltage, the output terminal of the comparison module is connected to the control terminal of the second switch module, the first terminal of the second switch module is connected to the solar module, and the second terminal of the second switch module is connected to the energy storage module.

7. The intelligent air energy storage system as described in claim 1, characterized in that, Also includes: Fault alarm module; The fault alarm module is connected to the control module, and the fault alarm module is configured to detect the operating status of the intelligent air energy storage system.

8. The intelligent air energy storage system as described in claim 1, characterized in that, Also includes: Communication modules and monitoring terminals; The control module communicates with the monitoring terminal through the communication module.

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