User-side self-contained emergency power supply system comprising energy storage equipment and electric energy regulation and control method

Abstract

The embodiment of the invention provides a user-side self-contained emergency power supply system comprising energy storage equipment and an electric energy regulation and control method, and the user-side self-contained emergency power supply system comprising the energy storage equipment comprises user self-contained emergency power supply equipment which comprises centralized energy storage equipment and distributed emergency power supply equipment; and the power network is connected with the user self-contained emergency power supply equipment and is used for performing power transmission on the user self-contained emergency power supply equipment in a normal or emergency scene, and a wiring mode in the power network comprises an annular wiring mode or a radial wiring mode. The user-side self-contained emergency power supply system comprising the energy storage equipment in the embodiment can stably output electric energy in a normal or emergency scene, and has adjustability and higher power supply reliability.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of distributed power regulation, and particularly to a user-side self-provided emergency power supply system including energy storage devices and an electric energy regulation method. Background Art

[0002] Improving the adjustable capacity of the user-side distribution network is an important measure to promote the consumption of new energy. In the traditional mode, the user-side self-provided emergency power supply is non-adjustable, and the capacity of the emergency power supply is often configured with a large margin, resulting in a large number of idle and wasted power assets configured by users. With the large-scale access of distributed photovoltaic, wind power and other power sources to the distribution network, the requirements for user-side energy storage and regulation capabilities are getting higher and higher. Summary of the Invention

[0003] To solve the above technical problems, the embodiments of the present invention provide a user-side self-provided emergency power supply system including energy storage devices, comprising:

[0004] A user self-provided emergency power supply device, including a centralized energy storage device and a decentralized emergency power supply device;

[0005] A power network, connected to the user self-provided emergency power supply device, for transmitting power to the user self-provided emergency power supply device in normal or emergency scenarios, and the wiring mode in the power network includes a ring wiring mode or a radial wiring mode.

[0006] In one embodiment, the power stored in the centralized energy storage device includes an emergency power supply, and both the centralized energy storage device and the decentralized emergency power supply device can perform electric energy regulation based on a unified regulation or independent regulation method.

[0007] In one embodiment, the centralized energy storage device is an electrochemical energy storage device, and the decentralized emergency power supply device includes a UPS power supply device, an EPS power supply device and a DC power supply device.

[0008] In one embodiment, the power network is connected to the main power grid on the user side, and the number of connection points is at least two.

[0009] Another embodiment of the present invention also provides an electric energy regulation method, applied to the user-side self-provided emergency power supply system including energy storage devices as described in any one of the above, comprising:

[0010] Obtaining the engineering data of the user-side self-provided emergency power supply system;

[0011] Constructing a system model according to the engineering data of the user-side self-provided emergency power supply system and preset various different calculation parameters and evaluation indexes, and the system model is used to calculate the adjustable amounts of the real-time active power and reactive power of various user self-provided emergency power supply devices;

[0012] Obtain the operation data of the user-side self-provided emergency power supply system, where the operation data includes historical operation data and current operation data;

[0013] Based on the operation data, respectively determine the electrical loads connected to each user-side self-provided emergency power supply device in the user-side self-provided emergency power supply system, the probability of the occurrence of the load, and the electrical energy demand of the specified electrical load;

[0014] Use the system model to process the operation data, the determined electrical loads, the probability of the occurrence of the load, and the electrical energy demand of the specified electrical load, and obtain the adjustable amounts of the real power and reactive power of each user-side self-provided emergency power supply device;

[0015] Based on the adjustable amounts and the preset control strategy, determine the operation curves of each user-side self-provided emergency power supply device, and control each user-side self-provided emergency power supply device to operate based on the corresponding operation curve.

[0016] In one embodiment, it further includes

[0017] Taking the adjustable amounts as constraints, in response to obtaining a unified control instruction, control the user-side self-provided emergency power supply devices.

[0018] In one embodiment, the obtaining of the engineering data of the user-side self-provided emergency power supply system includes:

[0019] Obtain the wiring relationship, power supply range, electrical load information and data of the user-side self-provided emergency power supply system;

[0020] Classify the electrical load information and count the electrical loads at each level;

[0021] Determine the power supply duration requirement of the target electrical load for the user-side self-provided emergency power supply device.

[0022] In one embodiment, the obtained information further includes:

[0023] Obtain the device information and technical parameters of the centralized power supply device of the user-side self-provided emergency power supply system;

[0024] Obtain the device information and technical parameters of the decentralized emergency power supply devices of the user-side self-provided emergency power supply system, and the classification information determined based on the battery type.

[0025] In one embodiment, the system model includes the parameters of each user's self - contained emergency power supply equipment, the parameters of the electrical equipment connected to the user - side self - contained emergency power supply system, the topological structure and technical parameters of the power network. The system model presets adjustment modes, control objectives, and control strategies. The simulation calculation formula constructed based on this power energy control method will input operation data for calculation to obtain the adjustable amounts of the real - time active power and reactive power of each user's self - contained emergency power supply equipment. In the system model, for the equipment parameters and power network parameters related to the real - time operating conditions, their real - time data are all obtained from the operation data of the user - side self - contained emergency power supply system.

[0026] In one embodiment, the topological structure of the power network includes each switching device, cable line, and transformer. The technical parameters include transformer numbers, specifications and models, and also include the opening and closing states of the switching devices, cable connection states, transformer load rates, and real - time states.

[0027] Based on the disclosure of the above - mentioned embodiments, the beneficial effects of the embodiments of the present invention include the ability to optimize the user - side self - contained emergency power supply system, realize the electrical connection of energy storage devices and other self - contained emergency power supplies through a dedicated power network for emergency power transmission, and fully exploit the power supply capabilities of energy storage devices and other self - contained emergency power supplies. Additionally, through the collection and analysis of the engineering data and operation data of the system, and by using intelligent control means, the adjustable and controllable operation of the self - contained emergency power supply system can be achieved. This promotes the stored electricity of the self - contained emergency power supply equipment to supply power to the system during certain specific periods using surplus electricity on the premise of ensuring the power supply to important loads. At the same time, it can use low - price electricity for charging or promote the consumption of renewable electricity on the user side during other specific periods. Furthermore, on the premise of ensuring safety, the cost reduction and efficiency increase of the entire system can be realized.

[0028] The control method can make full use of the remaining power of the electrochemical energy storage device to ensure power supply safety, deeply explore the adjustment potential of various self - contained emergency power supply equipment, and achieve the adjustable and controllable operation of various self - contained emergency power supply equipment through preset operation strategies.

[0029] Other features and advantages of the present application will be described in the subsequent specification, and part of them will become obvious from the specification or be understood by implementing the present application. The objectives and other advantages of the present application can be realized and obtained through the structures specifically pointed out in the written specification, claims, and drawings.

[0030] The technical solutions of the present application will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a schematic structural relationship diagram of a user-side self-provided emergency power supply system including an energy storage device in an embodiment of the present invention (the connections in the figure represent the relationships between the connected objects).

[0033] Figure 2 It is a wiring diagram in a ring mode of a user-side self-provided emergency power supply system including an energy storage device in an embodiment of the present invention.

[0034] Figure 3 It is a wiring diagram in a radial mode of a user-side self-provided emergency power supply system including an energy storage device in an embodiment of the present invention.

[0035] Figure 4 It is a schematic flow diagram of an electric energy regulation method in an embodiment of the present invention.

[0036] Figure 5 It is a schematic application flow diagram of an electric energy regulation method in an embodiment of the present invention.

[0037] Figure 6 It is a schematic diagram of the module relationship in an electric energy regulation device in an embodiment of the present invention. Specific Embodiments

[0038] Next, specific embodiments of the present invention will be described in detail with reference to the drawings, but it is not a limitation of the present invention.

[0039] It should be understood that various modifications can be made to the embodiments disclosed herein. Therefore, the following description should not be regarded as restrictive, but only as an example of the embodiments. Those skilled in the art will think of other modifications within the scope of the present disclosure.

[0040] The drawings included in the specification and constituting a part of the specification illustrate the embodiments of the present disclosure, and are used together with the above general description of the present disclosure and the following detailed description of the embodiments to explain the principles of the present disclosure.

[0041] These and other features of the present invention will become apparent from the following description of the preferred forms of the embodiments given as non-limiting examples with reference to the drawings.

[0042] It should also be understood that, although the present invention has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present invention, which have the features as described in the claims and thus are all within the protection scope defined thereby.

[0043] When combined with the accompanying drawings, the above and other aspects, features, and advantages of the present disclosure will become more apparent in view of the following detailed description.

[0044] Specific embodiments of the present disclosure will be described hereinafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but are merely used as a basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in substantially any suitable detailed structure in a variety of ways.

[0045] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", which may each refer to one or more of the same or different embodiments according to the present disclosure.

[0046] Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0047] As Figure 1 shown, an embodiment of the present invention provides a user-side self-provided emergency power supply system including an energy storage device, comprising:

[0048] A user self-provided emergency power supply device, including a centralized energy storage device and a decentralized emergency power supply device;

[0049] A power network, connected to the user self-provided emergency power supply device, for performing power transmission on the user self-provided emergency power supply device in normal or emergency scenarios, and the wiring mode in the power network includes a ring wiring mode or a radial wiring mode.

[0050] In this embodiment, all the user-side self-provided emergency power supply devices are connected through the power network. The power network is specifically connected to the user-side self-provided emergency power supply device for power transmission. The power stored in the centralized energy storage device includes an emergency power supply, that is, a part of the power stored in the centralized energy storage device in the system also serves as the emergency power supply. Both the centralized energy storage device and the decentralized emergency power supply device can perform power adjustment based on a unified adjustment or an independent adjustment method. Moreover, in this embodiment, the user-side self-provided emergency power supply system also supports unified adjustment or device independent adjustment, that is, the system can participate in energy adjustment as a whole, and a single power supply device in the system can also perform independent adjustment.

[0051] In this embodiment, the centralized energy storage device is an electrochemical energy storage device, and the decentralized emergency power supply device includes a UPS power supply device, an EPS power supply device, and a DC power supply device. The power grid is connected to the main power grid on the user side, and there are at least two connection points.

[0052] As Figure 2 and Figure 3 shown, the embodiment of the present invention provides two wiring methods for the user-side self-provided emergency power supply system. Based on the content of the above embodiment, it can be known that for the user-side self-provided emergency power supply system provided by this application, its energy storage device and other self-provided emergency power supply devices are electrically connected by a dedicated power grid. The power grid can adopt a ring wiring as Figure 2 shown, or a radial wiring as Figure 3 shown. No matter which wiring method is adopted, its connection to the main grid is not less than two points. The electricity stored in each power supply device can discharge to the system, and when any device in the power grid is disconnected, the system can still ensure normal operation and have sufficient emergency power supply capacity, with higher power supply reliability.

[0053] For traditional users, the self-provided emergency power supply device cannot be adjusted during normal operation. In the system provided by this embodiment, all emergency power supply devices have adjustability. On the premise of ensuring the power supply to important loads, each power supply device can supply power to the system with surplus power during a specific period, and it also supports charging with low-cost electricity or promoting the consumption of renewable electricity on the user side during a specific period. In addition, all emergency power supply devices in the system of this embodiment can be used as an overall energy storage unit to receive control instructions from users or the external power grid and provide auxiliary services to the power grid in an aggregated manner.

[0054] As Figure 4 and Figure 5 shown, another embodiment of the present invention also provides an electric energy regulation method, which is applied to the user-side self-provided emergency power supply system including an energy storage device as described above, and includes:

[0055] S1: Obtain the engineering data of the user-side self-provided emergency power supply system;

[0056] S2: Construct a system model according to the engineering data of the user-side self-provided emergency power supply system and preset various different calculation parameters and evaluation indexes. The system model is used to calculate the adjustable amounts of real power and reactive power of various user self-provided emergency power supply devices in real time;

[0057] S3: Obtain the operation data of the user-side self-provided emergency power supply system, where the operation data includes historical operation data and current operation data;

[0058] S4: Determine the electrical load connected to each user's self - contained emergency power supply device in the user - side self - contained emergency power supply system, the probability of the load occurrence, and the electrical energy demand of the specified electrical load, respectively, based on the operation data;

[0059] S5: Process the operation data, the determined electrical load, the probability of the load occurrence, and the electrical energy demand of the specified electrical load using the system model to obtain the adjustable amounts of the real - time active power and reactive power of each user's self - contained emergency power supply device;

[0060] S6: Determine the operation curve of each user's self - contained emergency power supply device based on the adjustable amounts and the preset control strategy, and control each user's self - contained emergency power supply device to operate based on the corresponding operation curve.

[0061] The operation constraints include:

[0062]

[0063] |ΔP BESS,i (t)|≤DOP BESS,i,max

[0064] |ΔP B,j (t)|≤DOP B,j,max

[0065]

[0066] (1 - |ΔP B,j (t)|)P B,j ≥L req,j,max ≥L req,j (t)

[0067] P rob .(L req,s,max )≥K prob.(Lsys)

[0068] P rob .(L req,j,max )≥K prob.(Lj)

[0069] ST(P BESS,i,NET )=A

[0070] ST(P B,J,NET )=A

[0071]

[0072] Where:

[0073] P sys,adj (t) is the adjustable amount of the real - time active power of the entire system at time t;

[0074] Qsys,adj (t) is the real-time reactive power adjustable amount of the entire system at time t;

[0075] ΔP BESS,i (t) is the real-time active power adjustable percentage of the centralized energy storage device i at time t; ΔP B,j (t) is the real-time active power adjustable percentage of the decentralized emergency power supply device j at time t;

[0076] P BESS,BASE is the basic reserved power of the centralized energy storage devices in the system;

[0077] P BESS,i is the rated capacity of the centralized energy storage device i;

[0078] P B,j is the rated capacity of the decentralized emergency power supply device j;

[0079] DOP BESS,i,max is the maximum discharge depth percentage of the centralized energy storage device i;

[0080] DOP B,j,max is the maximum discharge depth percentage of the decentralized emergency power supply device j;

[0081] L req,s,max is the historical maximum load demand of the entire system;

[0082] L req,s (t) is the load demand of the entire system at time t;

[0083] L req,j,max is the historical maximum load demand of the decentralized emergency power supply device j;

[0084] L req,j (t) is the load demand of the decentralized emergency power supply device j at time t;

[0085] K prob.(Lsys) is the threshold of the system load occurrence probability;

[0086] K prob.(Lj) is the threshold of the load occurrence probability of the decentralized emergency power supply device j;

[0087] ST(P BESS,i,NET ) is the state of the power network connected to the centralized energy storage device i, with the value being A or NA;

[0088] ST(P B,j,NET ) is the state of the power network connected to the decentralized emergency power supply device j, with the value being A or NA;

[0089] P rob .(Lreq,s,max ) is the probability of the occurrence of the maximum load of the entire system in history;

[0090] P rob .(L req,j,max ) is the probability of the occurrence of the maximum load of the distributed emergency power supply device j in history.

[0091] In this embodiment, the adjustment mode can be preset to an external adjustment mode or an independent adjustment mode, and the control target can be preset to the optimal economy or the optimal safety:

[0092] When the control target is the optimal economy, the control strategy set in the independent adjustment mode can be that all self-provided emergency power supply devices charge during the low load period and discharge during the high load period to obtain benefits by using the electricity price difference; in the external adjustment mode, the control strategy of the user or the external power grid is executed, and while obtaining additional benefits by using ancillary services, the electricity price difference between peak and valley can still be used to obtain benefits when conditions permit. When the control target in this embodiment is the optimal safety, the set control strategy can be that the distributed emergency power supply devices charge during the low load period and discharge during the high load period, and the centralized emergency power supply is given priority as the security power supply of the entire system to maintain a higher proportion of electricity, and this part of the electricity does not accept the control command and does not participate in the adjustment to ensure stable power supply.

[0093] In this embodiment, after determining the adjustable amount of each power supply device, different adjustment methods will be adopted according to the adjustment mode, for example:

[0094] In the independent adjustment mode, according to the simulation operation results output by the system model, the target curves of each self-provided emergency power supply device are generated in accordance with the control target and the control strategy;

[0095] The target curves are sent to each self-provided emergency power supply device to control each emergency power supply device to operate according to the corresponding target curves, so as to realize the energy management control and operation of the self-provided emergency power supply system. It is equivalent to that the independent adjustment mode regards the self-provided emergency power supply devices of the self-provided emergency power supply system as independent energy storage units and accepts the control commands of the system itself for energy adjustment;

[0096] The determination of the above target curves and the steps based on curve adjustment are executed in a loop.

[0097] In the external adjustment mode, the method further includes:

[0098] Constrained by the adjustable amount, in response to obtaining a unified control command, the user's self-provided emergency power supply device is controlled.

[0099] For example, taking the adjustable amounts of real and reactive power of each emergency power supply device as constraints, accepting the coordinated control instructions of the user or the external power grid for the integration of power sources, loads, and energy storage, and then controlling each emergency power supply device to operate following the external control instructions, and participating in the energy regulation outside the self-provided emergency power supply system.

[0100] In this embodiment, the regulation method makes full use of the electrochemical energy storage devices included in the self-provided emergency power supply system, uses their remaining power to ensure power supply safety, fully exploits the adjustment potential of various self-provided emergency power supply devices, and realizes the adjustable, controllable, group-regulated, and group-controlled operation of various self-provided emergency power supply devices by optimizing the charge and discharge operation strategies. While improving the equipment utilization efficiency, it expands the absorption space for the main grid, enhances the peak shaving and guarantee capabilities of the power system. While obtaining additional benefits by using ancillary services, it can also obtain low-cost electricity using off-peak electricity prices, thereby achieving cost reduction and efficiency improvement for the entire system. The regulation principle in this embodiment is that, on the premise of ensuring the power supply to important loads, the self-provided emergency power supply devices use the surplus power to supply power to the system during the first specific period, and use low-cost electricity for charging or for the consumption of user-side renewable electricity during other specific periods.

[0101] In one embodiment, obtaining the engineering data of the user-side self-provided emergency power supply system includes:

[0102] S11: Obtain the wiring relationship, power supply scope, electrical load information, and data of the user-side self-provided emergency power supply system;

[0103] S12: Classify the electrical load information and count the electrical loads at each level;

[0104] S13: Determine the power supply duration requirement of the target electrical load for the user's self-provided emergency power supply device.

[0105] The method further includes:

[0106] S14: Obtain the device information and technical parameters of the centralized power supply device of the user-side self-provided emergency power supply system;

[0107] S15: Obtain the device information and technical parameters of the decentralized emergency power supply devices of the user-side self-provided emergency power supply system, as well as the classification information determined based on the battery type.

[0108] In this embodiment, the method of obtaining the engineering information and data of the target user can be automatically obtained through the engineering design work platform, or manually obtained from the engineering design finished files and entered, that is, it can be manually obtained and then input into the system, or the system can automatically obtain it. The specific method is not unique.

[0109] Furthermore, in this embodiment, the system model includes the parameters of each user's self-provided emergency power supply equipment, the parameters of the electrical equipment connected to the user's self-provided emergency power supply system, the topological structure and technical parameters of the power network, and the system model presets the adjustment mode, control target and control strategy. The simulation calculation formula constructed based on the power control method will input the operation data for calculation to obtain the real-time active power and reactive power adjustable amount of each user's self-provided emergency power supply equipment. In the system model, the equipment parameters and power network parameters related to the real-time operating conditions are obtained from the operation data of the user's self-provided emergency power supply system.

[0110] Among them, the topological structure of the power network includes various switching devices, cable lines, and transformers. The technical parameters include the transformer number, specification model, and also include the opening and closing status of the switching devices, the cable connection status, the transformer load rate and real-time status.

[0111] In order to facilitate control and simulation calculation, the system model in this embodiment is divided into different sub-models, for example, including:

[0112] The emergency power supply equipment model includes technical parameters such as device position number, battery type, battery rated capacity, maximum charging power, maximum discharge power, allowable discharge depth, number of cycles, etc. It also includes SOC and SOH status indicators such as battery remaining power and remaining number of cycles;

[0113] The model of electrical equipment connected to the self-contained emergency power supply system includes technical parameters such as equipment position number, load level, load type, rated capacity, calculated load, etc. It also includes historical data such as maximum active power value and its occurrence probability, maximum electric value and its occurrence probability during the backup time, average active power value, average electric value during the backup time, as well as real-time data such as real-time operating power of particularly important electrical equipment in the first level connected to the system;

[0114] The power network model for emergency power transmission includes the technical parameters such as the number, specification and model of each switch device, cable line, transformer, etc., as well as the real-time status and data such as the opening and closing status of the switch device, the cable connection status, and the transformer load rate;

[0115] The simulation operation model can calculate and obtain the active power margin, reactive power margin and parameter data characterizing the adjustment capacity of centralized and decentralized emergency power supply equipment respectively, and based on this, calculate and determine the adjustable amount of self-provided emergency power supply equipment on different user sides at time t.

[0116] Once the adjustable amount is obtained, the devices in the system can be adjusted according to the different modes in the current scenario.

[0117] In practical applications, the operation data of the target user's power system is obtained, including the historical data, real-time status, and real-time data of each emergency power supply device and the power-consuming devices connected to the system. Then, based on the historical data, the historical data and occurrence probabilities of the loads connected to various emergency power supply devices are statistically analyzed. At the same time, according to the real-time status and real-time data, the real-time demand of the power-consuming loads with high importance is statistically analyzed. After that, the obtained operation data and statistical results are loaded into the self-provided emergency power supply system model for simulation operations to obtain the adjustable amounts of the real-time active and reactive powers of various self-provided emergency power supply devices. At this time, adjustments can be made according to the required mode.

[0118] The regulation method proposed in this embodiment has wide applicability and popularization and application value. For any emergency power supply system, this method is applicable and does not depend on a specific system form. When there is only a single emergency power supply in the system, the emergency power supply device can also be adjusted according to the regulation method proposed in this embodiment.

[0119] Another embodiment of the present invention further provides an electric energy regulation device, including an engineering information module, a model construction module, a data processing module, a target curve generation module, and an execution module. The connection relationships of the multiple modules are as Figure 6 shown. The multiple modules in this embodiment are used to cooperate to execute the electric energy regulation method described above.

[0120] Another embodiment of the present invention further provides an electronic device, including:

[0121] One or more processors;

[0122] A memory configured to store one or more programs;

[0123] When the one or more programs are executed by the one or more processors, the one or more processors implement the electric energy regulation method described in any of the above embodiments.

[0124] Furthermore, an embodiment of the present invention further provides a storage medium, on which a computer program is stored. When the program is executed by a processor, the electric energy regulation method described above is implemented. It should be understood that each solution in this embodiment has the corresponding technical effects in the above method embodiment and will not be elaborated here.

[0125] Furthermore, an embodiment of the present invention further provides a computer program product. The computer program product is tangibly stored on a computer-readable medium and includes computer-readable instructions. When the computer-executable instructions are executed, at least one processor is caused to execute the electric energy regulation method such as in the above embodiments.

[0126] It should be noted that the computer storage medium of the present invention can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable medium can, for example but not limited to, be an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium can include but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access storage medium (RAM), a read-only storage medium (ROM), an erasable programmable read-only storage medium (EPROM or flash memory), an optical fiber, a portable compact disk read-only storage medium (CD-ROM), an optical storage medium, a magnetic storage medium, or any suitable combination of the above. In the present invention, the computer-readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present invention, the computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, in which the computer-readable program code is carried. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, and this computer-readable medium can send, propagate, or transmit a program configured to be used by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted by any appropriate medium, including but not limited to: wireless, antenna, optical cable, RF, etc., or any suitable combination of the above.

[0127] In addition, those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0128] The present invention is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate for implementing the flow Figure 1one or more processes and / or blocks Figure 1 a system of the functions specified in one or more blocks

[0129] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction system that implements the functions specified in one Figure 1 one or more processes and / or blocks Figure 1 one or more blocks

[0130] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is exemplary only and is not intended to imply that the scope of the present application is limited to these examples; under the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of brevity.

Claims

1. A user-side self-provided emergency power supply system including an energy storage device, characterized in that: include: Users shall prepare their own emergency power supply equipment, including centralized energy storage equipment and decentralized emergency power supply equipment; A power network is connected to the user's own emergency power supply device and is used to transmit power to the user's own emergency power supply device in normal or emergency scenarios. The wiring method in the power network includes a ring wiring method or a radial wiring method.

2. The user-side self-contained emergency power supply system including an energy storage device according to claim 1, characterized in that: The electricity stored in the centralized energy storage device includes a security power supply, and both the centralized energy storage device and the decentralized emergency power supply device can regulate electric energy based on a unified regulation or an independent regulation method.

3. The user-side self-contained emergency power supply system including an energy storage device according to claim 1, characterized in that: The centralized energy storage device is an electrochemical energy storage device, and the decentralized emergency power supply device includes a UPS power supply device, an EPS power supply device and a DC power supply device.

4. The user-side self-contained emergency power supply system including an energy storage device according to claim 1, characterized in that: The power network is connected to the main power grid on the user side, and there are at least two connection points.

5. A method for controlling electric energy, applied to a user-side self-contained emergency power supply system including an energy storage device as claimed in any one of claims 1 to 4, characterized in that: include: Obtain engineering data of the user-provided emergency power supply system; A system model is constructed according to the engineering data of the user-side self-provided emergency power supply system and various preset calculation parameters and evaluation indicators. The system model is used to calculate the real-time active power and reactive power adjustable amounts of various user-provided emergency power supply equipment; Obtaining operation data of the user-side self-provided emergency power supply system, wherein the operation data includes historical operation data and current operation data; Based on the operation data, determine the electric load connected to each user's self-provided emergency power supply device in the user-side self-provided emergency power supply system, the probability of occurrence of the load, and the electric energy demand of the designated electric load; The system model is used to process the operation data, the determined electric load, the probability of occurrence of the load, and the electric energy demand of the specified electric load to obtain the adjustable amount of real-time active power and reactive power of each user's self-provided emergency power supply device; Based on the adjustable amount and the preset control strategy, the operation curve of each user-provided emergency power supply device is determined, and each user-provided emergency power supply device is controlled to operate based on the corresponding operation curve.

6. The electric energy control method according to claim 5, characterized in that: Also includes Taking the adjustable amount as a constraint, in response to obtaining a unified control instruction, the user's self-provided emergency power supply equipment is regulated.

7. The electric energy control method according to claim 5, characterized in that: The obtaining of engineering data of the user-side self-provided emergency power supply system includes: Obtain the wiring relationship, power supply range, power load information and data of the user-side self-provided emergency power supply system; Classifying the power load information and counting the power loads at each level; Determine the target power load and the power supply duration required by the user's self-provided emergency power supply equipment.

8. The electric energy control method according to claim 7, characterized in that: The information obtained also includes: Obtaining equipment information and technical parameters of the centralized power supply equipment of the user-side self-provided emergency power supply system; The equipment information and technical parameters of the decentralized emergency power supply equipment of the user-side self-provided emergency power supply system and the classification information determined based on the battery type are obtained.

9. The electric energy control method according to claim 5, characterized in that: The system model includes parameters of each user's self-provided emergency power supply equipment, parameters of electrical equipment connected to the user's self-provided emergency power supply system, topological structure and technical parameters of the power network. The system model presets adjustment mode, control target and control strategy. The simulation calculation formula constructed based on the electric energy control method will input operation data for calculation to obtain the real-time active power and reactive power adjustable values ​​of each user's self-provided emergency power supply equipment; in the system model, the equipment parameters and power network parameters related to the real-time operating conditions, their real-time data are all obtained from the operation data of the user's self-provided emergency power supply system.

10. The electric energy control method according to claim 9, characterized in that: The topological structure of the power network includes various switch devices, cable lines, and transformers. The technical parameters include the transformer number, specification model, and also include the opening and closing status of the switch devices, the cable connection status, the transformer load rate and real-time status.

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