Cooling, heating and power trigeneration energy storage system based on compressed fluid and control method

Abstract

The present disclosure provides a trigeneration energy storage system and control method based on compressed fluid, which involves the fields of artificial intelligence, renewable energy, and electricity. The energy storage system may include: an energy storage unit and an energy release unit; the energy storage unit is used to obtain high-pressure fluid and store it when the electricity consumption is at a low point; the energy release unit is used to separate the high-pressure fluid into two fluids when the electricity consumption is at a peak point, which are used to achieve heat output and cold output respectively, and the two fluids after achieving heat output and cold output are mixed to obtain a mixed fluid, and the mixed fluid is used to generate electricity. The application of the scheme described in the present disclosure can achieve efficient and flexible storage and release of energy.

Description

Technical Field

[0001] The present disclosure relates to the fields of artificial intelligence, renewable energy and electric power technology, and in particular to a compressed fluid-based trigeneration energy storage system and control method in the fields of deep learning and sensors. Background Art

[0002] Energy storage technology is a key research area in the context of the energy revolution of "carbon neutrality" and "carbon peak". Traditional energy storage technologies include pumped storage and electrochemical storage, but these methods are not suitable for widespread promotion due to site selection difficulties, ecology and immigration issues. Summary of the invention

[0003] The present disclosure provides an energy storage system and a control method.

[0004] An energy storage system comprises: an energy storage unit and an energy release unit;

[0005] The energy storage unit is used to obtain and store high-pressure fluid when the electricity consumption is at a low point;

[0006] The energy release unit is used to separate the high-pressure fluid into two fluids when the electricity consumption is at peak, respectively used to achieve heat output and cold output, and mix the two fluids after achieving heat output and cold output to obtain a mixed fluid, and use the mixed fluid to generate electricity.

[0007] A method for controlling an energy storage system, comprising:

[0008] In response to determining that the power consumption is entering a low valley stage, controlling an energy storage unit in the energy storage system to operate, wherein the energy storage unit is used to perform the following first process: obtaining high-pressure fluid and storing it;

[0009] In response to determining that the peak electricity consumption phase has begun, the energy release unit in the energy storage system is controlled to operate, and the energy release unit is used to perform the following second processing: separating the high-pressure fluid into two fluids, which are used to achieve heat output and cold output respectively, and mixing the two fluids after achieving heat output and cold output to obtain a mixed fluid, and using the mixed fluid to generate electricity.

[0010] An electronic device, comprising:

[0011] at least one processor; and

[0012] a memory communicatively connected to the at least one processor; wherein,

[0013] The memory stores instructions that can be executed by the at least one processor. The instructions are executed by the at least one processor to enable the at least one processor to perform the method described above.

[0014] A non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to cause a computer to execute the method as described above.

[0015] A computer program product comprises a computer program / instruction, wherein the computer program / instruction implements the method described above when executed by a processor.

[0016] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure.

[0018] Figure 1 It is a schematic diagram of the composition structure of the first embodiment 100 of the energy storage system disclosed in the present invention;

[0019] Figure 2 It is a schematic diagram of the composition structure of the second embodiment 200 of the energy storage system described in the present disclosure;

[0020] Figure 3 This is a flow chart of an embodiment of the energy storage system control method disclosed in the present invention;

[0021] Figure 4 A schematic block diagram of an electronic device 400 that can be used to implement an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0022] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0023] In addition, it should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0024] Figure 1 FIG. 1 is a schematic diagram of the composition structure of the first embodiment 100 of the energy storage system disclosed in the present invention. Figure 1As shown, it includes: an energy storage unit 101 and an energy release unit 102 .

[0025] The energy storage unit 101 is used to obtain and store high-pressure fluid when the electricity consumption is at a low point.

[0026] The energy release unit 102 is used to separate the high-pressure fluid into two fluids when the electricity consumption is at peak, respectively used to achieve heat output and cold output, and mix the two fluids after achieving heat output and cold output to obtain a mixed fluid, and use the mixed fluid to generate electricity.

[0027] In the scheme described in the above device embodiment, a compressed fluid energy storage method is adopted. The compressed fluid energy storage method has many advantages such as low cost, long life, large capacity, no chemical pollution, safety and reliability, and is suitable for widespread promotion.

[0028] In addition, in the scheme described in the above-mentioned device embodiment, a trigeneration energy storage method based on compressed fluid is adopted, which can realize efficient and flexible storage and release of energy, and can realize multi-level utilization of energy, thereby improving energy utilization rate and conveniently providing users with heat, cooling and electricity.

[0029] Furthermore, the solution disclosed in the present invention can be applied to various scenarios such as small-scale distributed energy supply systems and energy supply systems in remote areas, and improves the flexibility and cleanliness of energy utilization.

[0030] The energy storage unit 101 and the energy release unit 102 may include multiple components, such as Figure 2 As shown, Figure 2 Schematic diagram of the composition structure of the second embodiment 200 of the energy storage system of the present disclosure. It should be noted that the division of the energy storage unit 101 and the energy release unit 102 shown therein is only for illustration and is not intended to limit the technical solution of the present disclosure.

[0031] like Figure 2 As shown, the energy storage unit 101 may include: a driving motor 17 , a fluid compressor 1 and a fluid storage tank 2 .

[0032] The driving motor 17 is used to drive the fluid compressor 1 to work.

[0033] The fluid compressor 1 is used to compress the acquired fluid to obtain high-pressure fluid.

[0034] The fluid storage tank 2 is used to store high-pressure fluid.

[0035] Through the above-mentioned treatment, the required high-pressure fluid can be obtained, thereby realizing energy storage during the low-power consumption stage and laying the foundation for subsequent energy release.

[0036] like Figure 2As shown, the energy release unit 102 may include: a vortex tube 3 , a third heat exchanger 8 , a fourth heat exchanger 9 , an ejector 4 , a turbine 5 and a generator 18 .

[0037] The vortex tube 3 is used to separate the high-pressure fluid into a high-pressure hot fluid and a low-pressure cold fluid.

[0038] The third heat exchanger 8 is used to realize heat output by utilizing high-pressure thermal fluid.

[0039] The fourth heat exchanger 9 is used to realize cooling output by utilizing low-pressure cold fluid.

[0040] The ejector 4 is used to mix the high-pressure hot fluid after achieving heat output and the low-pressure cold fluid after achieving cold output to obtain a mixed fluid.

[0041] The turbine 5 is used to utilize the expansion of the mixed fluid to do work, driving the generator 18 to work and output electrical energy.

[0042] The generator 18 is used to output electrical energy.

[0043] Through the above-mentioned method, the trigeneration of heat, cold and electricity can be achieved with the help of the stored high-pressure fluid, that is, the stored high-pressure fluid is separated into two fluids, namely, the high-pressure hot fluid and the low-pressure cold fluid, through the vortex tube 3, which are used for heating and cooling respectively. The fluids after heating and cooling are mixed and used for power generation, thereby realizing multi-stage utilization of energy and improving energy utilization rate. In addition, the cold fluid is recycled through the ejector 4, avoiding direct discharge of the cold fluid and reducing the pressure energy loss of the cold fluid part, thereby further improving the energy utilization rate and improving the system efficiency.

[0044] like Figure 2 As shown, preferably, the energy storage unit 101 may further include: a low-temperature storage tank 11 , a first heat exchanger 6 and a high-temperature storage tank 10 . In addition, the energy release unit 102 may further include: a second heat exchanger 7 .

[0045] The low temperature storage tank 11 is used to store low temperature heat storage medium.

[0046] The first heat exchanger 6 is used to heat the low-temperature heat storage medium with the heat of the high-pressure fluid to obtain a high-temperature heat storage medium, store the high-temperature heat storage medium in the high-temperature storage tank 10, and store the high-pressure fluid after releasing heat to the low-temperature heat storage medium in the fluid storage tank 2.

[0047] The high temperature storage tank 10 is used to store high temperature heat storage medium.

[0048] Correspondingly, the second heat exchanger 7 is used to heat the mixed fluid using the high-temperature heat storage medium.

[0049] The turbine 5 is used to utilize the heated mixed fluid to expand and perform work.

[0050] During the energy storage process, the fluid compressor 1 compresses the fluid, which causes its temperature to rise, that is, the process of compressing the fluid generates heat. Through the above-mentioned treatment, the heat generated during the energy storage process can be stored in the high-temperature storage tank 10 with the help of a heat storage medium, and used to heat the mixed fluid during the energy release process, thereby improving the working capacity of the turbine 5. In addition, the system does not need to use an additional external heat source during the energy release process, and is highly flexible and environmentally friendly.

[0051] like Figure 2 As shown, preferably, the energy storage unit 101 may further include: a cooler 12.

[0052] The cooler 12 is used to cool the high-temperature heat storage medium after releasing heat to the mixed fluid to obtain a low-temperature heat storage medium, and store the obtained low-temperature heat storage medium in the low-temperature storage tank 11.

[0053] Through the above-mentioned treatment, the recycling and reuse of the heat storage medium is realized, thereby reducing resource consumption and improving resource utilization.

[0054] like Figure 2 As shown, preferably, the energy storage unit 101 may further include: a first regulating valve 13 and a fourth regulating valve 16 .

[0055] When the electricity consumption is at a low point, the first regulating valve 13 and the fourth regulating valve 16 are both in an open state, the fluid enters the fluid compressor 1 through the first regulating valve 13, and the low-temperature heat storage medium enters the first heat exchanger 6 through the fourth regulating valve 16. When the electricity consumption is at a peak point, the first regulating valve 13 and the fourth regulating valve 16 are both in a closed state.

[0056] like Figure 2 As shown, preferably, the energy release unit 102 may further include: a second regulating valve 14 and a third regulating valve 15 .

[0057] When the electricity consumption is at a low point, the second regulating valve 14 and the third regulating valve 15 are both in a closed state. When the electricity consumption is at a peak point, the second regulating valve 14 and the third regulating valve 15 are both in an open state. The high-pressure fluid enters the vortex tube 3 through the second regulating valve 14, and the high-temperature heat storage medium enters the second heat exchanger 7 through the third regulating valve 15.

[0058] With the help of each regulating valve, the start and end of the energy storage process and the energy release process can be conveniently and accurately controlled.

[0059] Based on the above introduction, Figure 2As shown, the energy storage system described in the present disclosure may include: a fluid compressor 1, a fluid storage tank 2, a vortex tube 3, an ejector 4, a turbine 5, a first heat exchanger 6, a second heat exchanger 7, a third heat exchanger 8, a fourth heat exchanger 9, a high-temperature storage tank 10, a low-temperature storage tank 11, a cooler 12, a first regulating valve 13, a second regulating valve 14, a third regulating valve 15, a fourth regulating valve 16, a drive motor 17 and a generator 18.

[0060] The first regulating valve 13 is connected to the fluid compressor 1, the shaft end of the fluid compressor 1 is connected to the drive motor 17, the outlet of the fluid compressor 1 is connected to the first inlet of the first heat exchanger 6, the first outlet of the first heat exchanger 6 is connected to the inlet of the fluid storage tank 2 to achieve pressure storage, the outlet of the low-temperature storage tank 11 is connected to the second inlet of the first heat exchanger 6 through the fourth regulating valve 16, and the second outlet of the first heat exchanger 6 is connected to the inlet of the high-temperature storage tank 10 to achieve heat storage.

[0061] The outlet of the fluid storage tank 2 is connected to the inlet of the vortex tube 3 through the second regulating valve 14, the hot end outlet of the vortex tube 3 is connected to the first inlet of the third heat exchanger 8, the first outlet of the third heat exchanger 8 is connected to the first inlet of the ejector 4, the second inlet and the second outlet of the third heat exchanger 8 are connected to the hot user to provide heat, that is, to achieve heat output, the cold end outlet of the vortex tube 3 is connected to the first inlet of the fourth heat exchanger 9, the first outlet of the fourth heat exchanger 9 is connected to the second inlet of the ejector 4, the second inlet and the second outlet of the fourth heat exchanger 9 are connected to the cold user to provide cold, that is, to achieve cold output, the ejector 4 outlet is connected to the first inlet of the second heat exchanger 7, the first outlet of the second heat exchanger 7 is connected to the inlet of the turbine 5, the shaft end of the turbine 5 is connected to the generator 18, to provide electric energy for the electric user, the high temperature storage tank 10 outlet is connected to the second inlet of the second heat exchanger 7 through the third regulating valve 15, the second outlet of the second heat exchanger 7 is connected to the inlet of the low temperature storage tank 11 through the cooler 12, to achieve heat release.

[0062] When it is determined that the power consumption is at a low point, the first regulating valve 13 and the fourth regulating valve 16 can be opened, and the energy storage unit 101 starts to work. Specifically, the driving motor 17 can drive the fluid compressor 1 to work. Accordingly, the fluid enters the fluid compressor 1 through the first regulating valve 13, and high-pressure fluid is obtained after compression, and enters the first heat exchanger 6. In addition, the low-temperature heat storage medium in the low-temperature storage tank 11 enters the first heat exchanger 6 through the fourth regulating valve 16, and the low-temperature heat storage medium is heated by the heat of the high-pressure fluid in the first heat exchanger 6 to obtain a high-temperature heat storage medium, that is, the heat is transferred to the low-temperature heat storage medium, and the high-temperature heat storage medium can be stored in the high-temperature storage tank 10. After the heat transfer is completed, the high-pressure fluid enters the fluid storage tank 2 for storage, completing the energy storage process, and then the first regulating valve 13, the fourth regulating valve 16, the driving motor 17 and the fluid compressor 1 are closed.

[0063] In practical applications, there is no limitation on the specific type of heat storage medium, for example, it can be water.

[0064] When it is determined that the power consumption is at the peak stage, the second regulating valve 14 and the third regulating valve 15 can be opened, and the energy release unit 102 starts to work. Specifically, the high-pressure fluid stored in the fluid storage tank 2 enters the vortex tube 3 through the fourth regulating valve 14, and is separated by the vortex tube 3 into two fluids, namely, a high-pressure hot fluid and a low-pressure cold fluid. The temperatures of the high-pressure hot fluid and the low-pressure cold fluid can be controlled by adjusting the hot end valve of the vortex tube 3. The high-pressure hot fluid flows out through the hot end outlet of the vortex tube 3, enters the third heat exchanger 8 to provide heat to the heat user, thereby realizing heat output. After releasing the heat, the high-pressure hot fluid enters the first inlet of the ejector 4, and the low-pressure cold fluid flows out through the cold end outlet of the vortex tube 3, enters the fourth heat exchanger 9 to provide cold energy to the cold user, thereby realizing cold energy output. The low-pressure cold fluid after releasing the cold energy enters the second inlet of the ejector 4, and the ejector 4 can transfer the high-pressure hot fluid from the third heat exchanger 8 to the hot end outlet of the vortex tube 3. The fluid is used as the working fluid, and the low-pressure cold fluid from the fourth heat exchanger 9 is used as the ejection fluid to obtain a mixed fluid. After the mixed fluid enters the second heat exchanger 7, it absorbs the heat of the high-temperature heat storage medium stored in the high-temperature storage tank 10 to obtain a heated mixed fluid. Further, the heated mixed fluid enters the turbine 5 to expand and do work, driving the generator 18 to work and output electrical energy. In addition, the high-temperature heat storage medium stored in the high-temperature storage tank 10 releases heat to the mixed fluid through the second heat exchanger 7 and then enters the cooler 12 for cooling to obtain a low-temperature heat storage medium. The obtained low-temperature heat storage medium can be stored in the low-temperature storage tank 11 for the next cycle. When the high-pressure fluid stored in the fluid storage tank 2 is completely discharged or the peak power consumption stage ends, the second regulating valve 14, the third regulating valve 15, the turbine 5 and the motor 18 can be closed, and the energy release process ends.

[0065] There is no limitation on the specific fluid described in the present disclosure. For example, the fluid may be air, carbon dioxide, nitrogen or other working fluids, and has wide applicability.

[0066] With respect to the above energy storage system, the present disclosure also provides an energy storage system control method, which is introduced below.

[0067] Figure 3 Flow chart of an embodiment of the energy storage system control method disclosed in the present invention. Figure 3 As shown, the following specific implementation methods are included.

[0068] In step 301, in response to determining that the power consumption has entered a valley phase, an energy storage unit in the energy storage system is controlled to operate, and the energy storage unit is used to perform the following first process: obtaining high-pressure fluid and storing it.

[0069] In step 302, in response to determining that the peak electricity consumption phase has begun, the energy release unit in the energy storage system is controlled to operate, and the energy release unit is used to perform the following second processing: separating the high-pressure fluid into two fluids, which are used to achieve heat output and cold output respectively, and mixing the two fluids after achieving heat output and cold output to obtain a mixed fluid, and using the mixed fluid to generate electricity.

[0070] In the scheme described in the above method embodiment, the energy storage system can be intelligently controlled to realize a trigeneration energy storage method based on compressed fluid, which can achieve efficient and flexible storage and release of energy, and can realize multi-level utilization of energy, thereby improving energy utilization rate and conveniently providing users with heat, cooling and electricity.

[0071] Preferably, the first process may further include: utilizing the heat of the high-pressure fluid to heat the low-temperature heat storage medium to obtain a high-temperature heat storage medium, storing the high-temperature heat storage medium, and storing the high-pressure fluid after releasing heat to the low-temperature heat storage medium. Accordingly, the second process may further include: utilizing the high-temperature heat storage medium to heat the mixed fluid, and utilizing the heated mixed fluid to generate electricity.

[0072] Through the above-mentioned treatment, the heat generated during the energy storage process can be stored with the help of a heat storage medium and used to heat the mixed fluid during the energy release process, thereby improving the working capacity of the turbine.

[0073] Preferably, determining that the power consumption has entered the valley phase may include: respectively obtaining the opening curves of each energy storage regulating valve corresponding to the energy storage unit, and in response to determining that the openings of each energy storage regulating valve at any time are greater than zero according to the obtained opening curves, determining that the power consumption has entered the valley phase. Similarly, determining that the power consumption has entered the peak phase may include: respectively obtaining the opening curves of each energy release regulating valve corresponding to the energy release unit, and in response to determining that the openings of each energy release regulating valve at any time are greater than zero according to the obtained opening curves, determining that the power consumption has entered the peak phase.

[0074] It can be seen that with the help of the opening curve of the regulating valve, it is possible to efficiently and accurately determine when the electricity consumption enters the low-peak stage and when the electricity consumption enters the peak stage, thereby achieving efficient storage and release of energy.

[0075] Preferably, controlling the energy storage unit to work may include: opening each energy storage regulating valve according to the opening of each energy storage regulating valve at the moment when the opening is greater than zero (i.e., the opening value corresponding to the moment on the opening curve). Similarly, controlling the energy release unit to work may include: opening each energy release regulating valve according to the opening of each energy release regulating valve at the moment when the opening is greater than zero.

[0076] The value of the opening is usually between 0 and 1, wherein 0 represents closed, 1 represents fully open, and other values ​​represent partially open.

[0077] For example, assuming that there are two energy storage regulating valves, namely energy storage regulating valve a and energy storage regulating valve b, at a certain moment, the opening of each energy storage regulating valve is greater than 0, among which the opening of energy storage regulating valve a is 0.6 and the opening of energy storage regulating valve b is 1, then the energy storage regulating valve a and energy storage regulating valve b can be opened respectively according to the corresponding openings.

[0078] That is, it is possible to achieve fine control of each regulating valve based on the opening degree, thereby achieving fine control of the energy in the energy storage and release process, accurately responding to changes in power load, and improving the flexibility of resource utilization.

[0079] Preferably, based on the predetermined information, the opening curve of each energy storage regulating valve and the opening curve of each energy release regulating valve can be predicted by a pre-trained regulating valve control decision model.

[0080] In practical applications, the demand-side power load curve can be used as the state function, and the inverse of the variance of the supply-side power load curve can be used as the reward function. The deep reinforcement learning method is used to train the regulating valve control decision model.

[0081] For example, a demand-side power load curve and a supply-side power load curve may be obtained as training data, and a regulating valve control decision model may be obtained by training based on the training data.

[0082] Among them, the relationship between the demand-side power load curve and the supply-side power load curve is as follows: according to the demand-side power load curve, the opening curves of each energy storage regulating valve and the opening curves of each energy release regulating valve can be determined respectively, according to the opening curves of each energy storage regulating valve, the energy storage regulating curve can be determined, according to the opening curves of each energy release regulating valve, the energy release regulating curve can be determined, according to the demand-side power load curve, the energy storage regulating curve and the energy release regulating curve, the supply-side power load curve can be determined. In addition, the demand-side power load curve can be determined based on the user's historical power load data, the user's production needs and meteorological information.

[0083] Accordingly, based on the above training data, the regulating valve control decision model can be trained to obtain the optimal regulating valve control decision model. After the training is completed, the demand-side power load curve determined according to the user's historical power load data, the user's production demand, and meteorological information can be used as the input of the regulating valve control decision model to obtain the output, that is, the predicted opening curve of each energy storage regulating valve and the opening curve of each energy release regulating valve. The duration corresponding to the opening curve can be determined according to actual needs, such as one day. Accordingly, the opening curve of the next day can be predicted at zero o'clock every day.

[0084] It can be seen that in the above processing method, with the help of the regulating valve control decision model, the required opening curve can be obtained efficiently and accurately, thus laying a good foundation for subsequent processing.

[0085] by Figure 2 Taking the energy storage system shown as an example, the energy storage regulating valve may refer to the first regulating valve 13 and the fourth regulating valve 16 , and the energy release regulating valve may refer to the second regulating valve 14 and the third regulating valve 15 .

[0086] When it is determined based on the opening curves of the first regulating valve 13 and the fourth regulating valve 16 that the openings of the two regulating valves are both greater than zero at a certain moment, it can be determined that the electricity consumption has entered the low-peak stage. Accordingly, the first regulating valve 13 and the fourth regulating valve 16 can be opened according to the openings of the first regulating valve 13 and the fourth regulating valve 16 at the moment when the openings are both greater than zero to store energy.

[0087] When it is determined based on the opening curves of the second regulating valve 14 and the third regulating valve 15 that the openings of the two regulating valves are both greater than zero at a certain moment, it can be determined that the peak electricity consumption stage has begun. Accordingly, the second regulating valve 14 and the third regulating valve 15 can be opened to release energy according to the openings of the second regulating valve 14 and the third regulating valve 15 at the moment when the openings are both greater than zero.

[0088] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are expressed as a series of action combinations, but those skilled in the art should be aware that the present disclosure is not limited by the described order of actions, because according to the present disclosure, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present disclosure.

[0089] In summary, the scheme disclosed in the present invention can realize efficient and flexible storage and release of energy, and can realize multi-level utilization of energy, thereby improving energy utilization rate, and can conveniently provide users with heat, cooling and electricity. It also has many other advantages such as stable operation, flexible and efficient operation, no need for external heat source, and environmental friendliness.

[0090] The scheme disclosed in the present invention can be applied to the field of artificial intelligence, especially to the fields of deep learning and sensors. Artificial intelligence is a discipline that studies how to use computers to simulate certain human thought processes and intelligent behaviors (such as learning, reasoning, thinking, planning, etc.). It has both hardware-level and software-level technologies. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, and big data processing. Artificial intelligence software technologies mainly include computer vision technology, speech recognition technology, natural language processing technology, machine learning / deep learning, big data processing technology, knowledge graph technology, and other major directions.

[0091] In the technical solution of the present disclosure, the collection, storage, use, processing, transmission, provision and disclosure of user personal information involved are in compliance with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0092] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.

[0093] Figure 4 A schematic block diagram of an electronic device 400 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0094] like Figure 4 As shown, the device 400 includes a computing unit 401, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 402 or a computer program loaded from a storage unit 408 into a random access memory (RAM) 403. In the RAM 403, various programs and data required for the operation of the device 400 can also be stored. The computing unit 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0095] A number of components in the device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, a mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, an optical disk, etc.; and a communication unit 409, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 409 allows the device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0096] The computing unit 401 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 401 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The computing unit 401 performs the various methods and processes described above, such as the methods described in the present disclosure. For example, in some embodiments, the methods described in the present disclosure may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 408. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 400 via ROM 402 and / or a communication unit 409. When the computer program is loaded into RAM 403 and executed by the computing unit 401, one or more steps of the method described in the present disclosure may be performed. Alternatively, in other embodiments, the computing unit 401 may be configured to perform the method described in the present disclosure in any other appropriate manner (e.g., by means of firmware).

[0097] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0098] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0099] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0100] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0101] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0102] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0103] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0104] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An energy storage system, comprising: Energy storage unit and energy release unit; The energy storage unit is used to obtain and store high-pressure fluid when the electricity consumption is at a low point; The start time of the electricity consumption valley stage includes: the time when the opening of each energy storage regulating valve is greater than zero, determined according to the opening curve of each energy storage regulating valve corresponding to the energy storage unit, the opening curve of each energy storage regulating valve is predicted by the regulating valve control decision model, and the regulating valve control decision model is a model trained by the deep reinforcement learning method using the demand-side power load curve as the state function and the inverse of the variance of the supply-side power load curve as the reward function. In the electricity consumption valley stage, according to the opening of each energy storage regulating valve at the moment when the opening is greater than zero, each energy storage regulating valve is in an open state; The energy release unit is used to separate the high-pressure fluid into two fluids when the electricity consumption is at a peak stage, which are used to achieve heat output and cold output respectively, and mix the two fluids after achieving heat output and cold output to obtain a mixed fluid, and use the mixed fluid to generate electricity; the starting time of the peak electricity consumption stage includes: the moment when the opening of each energy release regulating valve is greater than zero as determined by the opening curve of each energy release regulating valve corresponding to the energy release unit, the opening curve of each energy release regulating valve is predicted by the regulating valve control decision model, and during the peak electricity consumption stage, according to the opening of each energy release regulating valve at the moment when the opening is greater than zero, each energy release regulating valve is in an open state.

2. The energy storage system according to claim 1, wherein: The energy storage unit includes: a driving motor, a fluid compressor and a fluid storage tank; The driving motor is used to drive the fluid compressor to work; The fluid compressor is used to compress the acquired fluid to obtain high-pressure fluid; The fluid storage tank is used to store the high-pressure fluid.

3. The energy storage system according to claim 2, wherein: The energy release unit includes: a vortex tube, a third heat exchanger, a fourth heat exchanger, an ejector, a turbine and a generator; The vortex tube is used to separate the high-pressure fluid into a high-pressure hot fluid and a low-pressure cold fluid; The third heat exchanger is used to achieve heat output using the high-pressure thermal fluid; The fourth heat exchanger is used to realize cooling output by utilizing the low-pressure cold fluid; The ejector is used to mix the high-pressure hot fluid after achieving heat output with the low-pressure cold fluid after achieving cold output to obtain the mixed fluid; The turbine is used to utilize the mixed fluid to expand and perform work, thereby driving the generator to work and output electrical energy; The generator is used to output electrical energy.

4. The energy storage system according to claim 3, wherein: The energy storage unit further comprises: a low temperature storage tank, a first heat exchanger and a high temperature storage tank; The low-temperature storage tank is used to store low-temperature heat storage medium; The first heat exchanger is used to heat the low-temperature heat storage medium with the heat of the high-pressure fluid to obtain a high-temperature heat storage medium, store the high-temperature heat storage medium in the high-temperature storage tank, and store the high-pressure fluid after releasing heat to the low-temperature heat storage medium in the fluid storage tank; The high temperature storage tank is used to store the high temperature heat storage medium; The energy release unit further comprises: a second heat exchanger; The second heat exchanger is used to heat the mixed fluid using the high-temperature heat storage medium; The turbine is further used to utilize the heated mixed fluid to expand and perform work.

5. The energy storage system according to claim 4, wherein: The energy storage unit further comprises: a cooler; The cooler is used to cool the high-temperature heat storage medium after releasing heat to the mixed fluid to obtain the low-temperature heat storage medium, and store the low-temperature heat storage medium in the low-temperature storage tank.

6. The energy storage system according to claim 4 or 5, wherein: The energy storage regulating valve comprises: a first regulating valve and a fourth regulating valve; When the electricity consumption is at a low point, the first regulating valve and the fourth regulating valve are both in an open state, the fluid enters the fluid compressor through the first regulating valve, and the low-temperature heat storage medium enters the first heat exchanger through the fourth regulating valve. When the electricity consumption is at a peak point, the first regulating valve and the fourth regulating valve are both in a closed state.

7. The energy storage system according to claim 4 or 5, wherein: The energy release regulating valve comprises: a second regulating valve and a third regulating valve; When the electricity consumption is at the low point, the second regulating valve and the third regulating valve are both in a closed state; when the electricity consumption is at the peak point, the second regulating valve and the third regulating valve are both in an open state; the high-pressure fluid enters the vortex tube through the second regulating valve, and the high-temperature heat storage medium enters the second heat exchanger through the third regulating valve.

8. A method for controlling an energy storage system, comprising: The opening curves of the energy storage regulating valves corresponding to the energy storage unit and the opening curves of the energy release regulating valves corresponding to the energy release unit are predicted through the regulating valve control decision model, wherein the regulating valve control decision model is trained by a deep reinforcement learning method using the demand-side power load curve as the state function and the inverse of the variance of the supply-side power load curve as the reward function; In response to determining that the openings of the energy storage regulating valves are greater than zero at any time according to the opening curves of the energy storage regulating valves, it is determined that the power consumption is in the valley phase, and the energy storage units in the energy storage system are controlled to work, including: opening the energy storage regulating valves according to the openings of the energy storage regulating valves at the time when the openings are greater than zero, and the energy storage units are used to perform the following first processing: obtaining high-pressure fluid and storing it; In response to determining according to the opening curves of each energy release regulating valve that the openings of each energy release regulating valve are greater than zero at any time, it is determined that the peak power consumption stage has begun, and the energy release unit in the energy storage system is controlled to work, including: opening each energy release regulating valve according to the openings of the energy release regulating valves at the moment when the openings are greater than zero, and the energy release unit is used to perform the following second processing: separating the high-pressure fluid into two fluids, which are respectively used to achieve heat output and cold output, and mixing the two fluids after achieving heat output and cold output to obtain a mixed fluid, and using the mixed fluid to generate electricity.

9. The method according to claim 8, wherein: The first process further comprises: using the heat of the high-pressure fluid to heat a low-temperature heat storage medium to obtain a high-temperature heat storage medium, storing the high-temperature heat storage medium, and storing the high-pressure fluid after releasing heat to the low-temperature heat storage medium; The second process further includes: using the high-temperature heat storage medium to heat the mixed fluid, and using the heated mixed fluid to generate electricity.

10. An electronic device, comprising: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 8 to 9.

11. A non-transitory computer-readable storage medium storing computer instructions, wherein: The computer instructions are used to make a computer execute the method according to any one of claims 8 to 9.

12. A computer program product, comprising a computer program / instruction, wherein when the computer program / instruction is executed by a processor, the method according to any one of claims 8 to 9 is implemented.

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