Energy storage reverse power supply control method and system of shared charging and energy storage all-in-one machine

Abstract

The invention discloses an energy storage reverse power supply control method for a shared charging and energy storage all-in-one machine, and the method comprises the steps: detecting a plurality of power transmission interfaces connected with a main control module, and obtaining a power supply request; detecting the total power supply energy of the plurality of energy storage power supply modules when a power transmission power supply request is obtained, and if the total power supply energy meets the power supply request number, generating a power supply instruction to distribute the energy storage power supply modules meeting the power supply request number to the power supply request charging interface to output electric quantity; and detecting the charging number of the power supply requesting charging interfaces, and if the energy storage power supply modules meeting the power supply requesting number are fully charged with the power supply requesting number, ending the current power supply operation. According to the invention, the charging and discharging strategies of the battery combination are optimized based on the power demand and the power grid condition, and factors such as the power grid user demand are considered, so that the energy cost is reduced to the greatest extent, the system efficiency is improved, and the problem that the peak-valley difference of the load of the power system is too large is relieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric power equipment, and specifically relates to a method and system for controlling reverse power supply of a shared charging, swapping and energy storage integrated machine. Background Art

[0002] Under the trend of global energy revolution, new energy storage design mode is the only way for the energy storage industry to transform and upgrade. The state and local governments have successively introduced a number of policies to lead and promote the high-quality development of new energy storage. With the advantages of short construction period, small environmental impact and low site selection requirements, new energy storage has obvious competitive advantages in the energy storage market.

[0003] Under the background of dual carbon, it has become a global consensus to promote the transformation of energy structure and build a new power system with new energy as the main body. Energy storage has become a core link as a rigid demand for coordinating interactive sources, grids, loads and storage to achieve a dynamic balance between power supply and demand. Among them, new energy storage has fast response, flexible configuration and short construction period, which improves the flexibility of the power system, provides important support for achieving carbon peak and carbon neutrality goals, and becomes the only way for the energy storage industry to upgrade and transform.

[0004] Most of the existing battery-exchange energy storage devices use batteries in series or in parallel, and their stability is greatly affected by the batteries. Once a fault occurs, it will not be possible to promptly and effectively deal with problems such as power outages in the power grid. In existing conventional technologies, due to immature skills, it is difficult to accurately regulate and maintain the power supply of the power grid for energy storage reverse power supply operations, resulting in unstable circuits and abnormal power supply. It is already difficult to deal with the power supply of a single distribution network. In the actual power production process, more complex situations may be encountered. For example, multiple distribution networks are in an unbalanced state due to faults and need to be replenished to maintain stable operation and maintenance performance. Due to the lack of smart grid power replenishment solutions, long-term bad usage habits can easily lead to damage to power supply peripheral components. In severe cases, the equipment will be burned, causing the distribution network to be paralyzed, resulting in irreparable losses. Therefore, it is urgent to design a shared charging and battery-exchange energy storage integrated machine. Energy storage reverse power supply control method and system to solve the above technical problems. Summary of the invention

[0005] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the present invention is to overcome the existing deficiencies and provide a method for controlling reverse power supply of a shared charging and swapping energy storage integrated machine, the method comprising the following steps:

[0006] Detect multiple power transmission interfaces connected to the main control module and obtain power supply requests;

[0007] After obtaining the power transmission request, the total power supply energy of multiple energy storage power supply modules is detected. If the total power supply energy meets the power supply request quantity, a power supply instruction is generated to allocate the energy storage power supply modules that meet the power supply request quantity to the requested power supply charging interface to output power;

[0008] The charging quantity of the power supply charging interface requested is detected, and if the energy storage power supply module that meets the power supply request quantity is fully charged with the power supply request quantity, the current power supply operation is terminated.

[0009] As a further optimization of the above solution, before detecting multiple power transmission interfaces connected to the main control module and obtaining a power supply request, the following is further included:

[0010] Continuously collect the distribution network voltage and obtain the distribution network voltage value;

[0011] If the voltage of the distribution network is lower than the first charging threshold, the main control module is switched to the reverse power supply mode, the power supply energy of the multiple energy storage power supply modules is continuously output to the distribution network end, and the detection of the power supply request of the multiple charging interfaces connected to the main control module is stopped;

[0012] Detect the value of the distribution network voltage. If the value of the distribution network voltage is not lower than the first power stabilization threshold, end the current power supply operation and switch the main control module to the forward power supply mode.

[0013] As a further optimization of the above scheme, after switching the main control module to the reverse power supply mode, the energy storage power supply module that meets the power supply request quantity is allocated to the power supply charging interface that requests power supply to output power, and the following is also included:

[0014] Set all energy storage power supply modules participating in the current power supply request to an activated state;

[0015] Stop all energy storage power supply modules set to the activated state from receiving power supply instructions other than the current charging interface;

[0016] Detect the power transmission quantity of the requested power supply charging interface, and if the energy storage power supply module that meets the power supply request quantity is fully charged with the power supply request quantity, end the current power supply operation;

[0017] Set all energy storage power supply modules that are not participating in the current power supply request to standby state and continuously detect power supply instructions.

[0018] As a further optimization of the above solution, after switching the main control module to the reverse power supply mode and generating a power supply instruction to allocate the energy storage power supply module that meets the power supply request quantity to the requested power supply charging interface to output the power:

[0019] Detect multiple power transmission interfaces connected to the main control module and obtain power supply requests;

[0020] If a power supply request from a new distribution network is obtained, the total amount of power supply energy of multiple energy storage power supply modules except those marked as activated is detected. If the total amount of power supply energy of multiple energy storage power supply modules meets the power supply request quantity of the new distribution network, a power supply instruction is generated to allocate the energy storage power supply modules that meet the power supply request quantity of the distribution network to the requested power supply charging interface to output power;

[0021] Repeat the above operations of obtaining the power supply request of the new distribution network and allocating the energy storage power supply modules that meet the power supply request quantity of the new distribution network until the total power supply energy of all the energy storage power supply modules in the standby state cannot meet the first power supply request quantity of the new distribution network to be allocated, mark the corresponding new distribution network as a saturated value network, and set the main control module to the saturated power supply mode;

[0022] Continuously detect the status of multiple energy storage power supply modules marked as activated. If any activated state is changed to standby state and the total power supply energy of all other standby energy storage power supply modules exceeds the saturation value grid, obtain the power supply request interface of the saturation value grid, generate a power supply instruction to distribute the standby energy storage power supply modules that meet the power supply request quantity of the distribution network to the transmission interface of the saturation value grid to output power.

[0023] As a further optimization of the above solution, after marking the corresponding new distribution network as a saturated value power grid and setting the main control module to a saturated power supply mode, the following is also included:

[0024] Setting a first time point t0, where t0 is a corresponding time point for setting the main control module to a saturated power supply mode;

[0025] Based on the main control module, the energy storage power supply module with the shortest time to transform into the standby state among all the energy storage power supply modules in the activated state is obtained, and the corresponding time period to be transformed Δt1 is calculated;

[0026] The number of power supply requests corresponding to the saturation value grid obtained by the main control module is full for a time period of Δt3;

[0027] Send a command of waiting for full charge time Δt1+Δt3 to the saturation value power grid, detect multiple power transmission interfaces connected to the main control module, and obtain a new power supply request;

[0028] After obtaining the power supply request of the new distribution network, a saturated power supply mode warning instruction and a full charge time instruction Δt1+Δt3 are sent to the charging interface corresponding to the power supply request of the new distribution network.

[0029] As a further optimization of the above solution, in the saturated power supply mode:

[0030] The energy storage power supply module with the shortest transition time from all activated states to the standby state is set to Δt1, and the second shortest transition time from all activated states to the standby state is set to Δt2;

[0031] Detect multiple charging interfaces connected to the main control module and obtain new power supply requests;

[0032] The time period in which the number of power supply requests corresponding to the saturated value grid is full is set to Δt3, and the first new distribution network to be allocated after the saturated value grid is set to be the sub-saturated value grid, and the time period in which the number of power supply requests corresponding to it is full is Δt4:

[0033] If Δt3≤Δt4, after Δt1 ends, the main control module generates a power supply instruction to distribute the energy storage power supply module in the current standby state to the transmission interface of the saturated power grid to output power;

[0034] If Δt3>Δt4, Δt2>Δt1, after Δt1 ends, the main control module generates a power supply instruction to distribute the energy storage power supply module in the current standby state to the transmission interface of the saturated power grid to output power;

[0035] If Δt3>Δt4, Δt2=Δt1, directly allocate any energy storage power supply module in all standby states at the current moment that meets the sub-saturation value grid power supply request quantity to the corresponding transmission interface to output power.

[0036] As a further optimization of the above solution, the status of multiple energy storage power supply modules is detected based on the main control module:

[0037] If the total amount of power supply energy of the multiple energy storage power supply modules is detected to be lower than the second charging threshold, the multiple energy storage power supply modules are set to a sleep mode based on the main control module; and the detection of power supply requests of the multiple charging interfaces connected to the main control module is stopped;

[0038] If any output voltage of multiple energy storage power supply modules is detected to be abnormal, the main control module is set to disconnect the energy storage power supply module with the abnormal output voltage, and stop the external power supply operation of the energy storage power supply module with the abnormal output voltage.

[0039] The present invention also discloses a shared charging and swapping energy storage integrated machine energy storage reverse power supply control system, the system comprising the following:

[0040] A power supply detection module, used to detect multiple power transmission interfaces connected to the main control module and obtain a power supply request;

[0041] A battery power detection module is used to detect the total power supply energy of multiple energy storage power supply modules after obtaining a power supply request for power transmission;

[0042] A first power supply output module is used to allocate energy storage power supply modules that meet the power supply request quantity to the requested power supply charging interface to output power;

[0043] The first power supply stopping module is used to detect the power transmission quantity requested by the power supply charging interface, and if the energy storage power supply module that meets the power supply request quantity is fully charged with the power supply request quantity, the current power supply operation is terminated.

[0044] As a further optimization of the above solution, the system further includes:

[0045] The power grid detection module is used to continuously collect the voltage of the distribution network and obtain the voltage value of the distribution network;

[0046] A second power supply output module is used to switch the main control module to a reverse power supply mode if the voltage of the distribution network is lower than a first charging threshold, continuously output the power supply energy of the multiple energy storage power supply modules to the distribution network end, and stop detecting power supply requests of the multiple charging interfaces connected to the main control module;

[0047] The second power supply stop module detects the value of the distribution network voltage. If the distribution network voltage value is not lower than the first power stabilization threshold, the current power supply operation is terminated and the main control module is switched to the forward power supply mode.

[0048] A computer-readable storage medium for storing a computer program or code, characterized in that when the computer program or code is executed by a processor, a method for controlling energy storage reverse power supply of a shared charging and swapping energy storage integrated machine as described in any one of the claims is implemented.

[0049] The present invention adopts the above technical solution, which has the following beneficial effects compared with the prior art:

[0050] 1. The present invention discloses a storage reverse power supply control technology for a shared charging and swapping energy storage integrated machine. Based on power demand and grid conditions, the charging and discharging strategies of the battery combination are optimized, avoiding the limitations of a single battery in series or parallel, and greatly improving the stability of the grid power supply environment. At the same time, factors such as grid user needs are considered to minimize energy costs and improve system efficiency, alleviating the problem of excessive peak-to-valley differences in power system loads.

[0051] 2. By continuously detecting the grid voltage in real time and making the grid voltage reach the first power stabilization threshold, it indicates that the current grid is in normal operation. At this time, all energy storage power supply modules will be disconnected from supplying power to the grid, and the energy storage power supply modules will be charged in reverse, and the power supply request from the power user will be started. During the entire energy storage reverse power supply operation process, this solution needs to continuously collect and analyze grid information and battery status information, and continuously adjust its own decisions according to changes in their status. The technology of the present invention specifically opens up grid power supply detection, and only starts to further open power supply services to the outside world on the premise of fully ensuring the stable and effective operation of the grid, effectively ensuring the safety of grid transmission and reducing maintenance costs.

[0052] 3. In order to strengthen the management of multiple energy storage power supply modules, the present invention adopts an active marking method, marking the modules that are supplying power as activated, and marking the modules that are in good condition but not participating in the power supply as standby. The activation state is further restricted so that the energy storage power supply module can only maintain one state at the same time, realizing intelligent management of power supply demand and preventing the chaotic management of multiple energy storage power supply modules from causing production accidents.

[0053] 4. The present invention designs a saturation description state, which monitors the state value of the energy storage power supply module in real time and reasonably allocates the remaining energy storage power supply modules in standby state to ensure that after any energy storage power supply module that is switched from an activated state to a standby state appears, resources are immediately integrated to provide the power transmission needs of the distribution network. The present invention has an intelligent design, does not waste the energy of the energy storage power supply module, achieves timely supervision and timely action, and improves the operating stability of the distribution network. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0055] Figure 1 It is a schematic diagram of a process of the present invention;

[0056] Figure 2 Another schematic diagram of the process of the present invention;

[0057] Figure 3 Another schematic diagram of the process of the present invention;

[0058] Figure 4 Another schematic diagram of the process of the present invention;

[0059] Figure 5 Another schematic diagram of the process of the present invention;

[0060] Figure 6 Another schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] like Figure 1-6 As shown, an embodiment of the present invention discloses a shared charging and swapping energy storage integrated machine with reverse power supply control technology, which optimizes the charging and discharging strategies of the battery combination based on power demand and grid conditions, while taking into account factors such as grid user needs, so as to minimize energy costs and improve system efficiency, and alleviate the problem of excessive peak-to-valley differences in power system loads.

[0063] Specifically, an embodiment of the present invention discloses a technology for controlling reverse power supply of a shared charging and swapping energy storage integrated machine, including:

[0064] Detect multiple power transmission interfaces connected to the main control module and obtain power supply requests;

[0065] After obtaining the power transmission request, the total power supply energy of multiple energy storage power supply modules is detected. If the total power supply energy meets the power supply request quantity, a power supply instruction is generated to allocate the energy storage power supply modules that meet the power supply request quantity to the requested power supply charging interface to output power;

[0066] The charging quantity of the power supply charging interface requested is detected, and if the energy storage power supply module that meets the power supply request quantity is fully charged with the power supply request quantity, the current power supply operation is terminated.

[0067] Embodiment 1:

[0068] Based on Example 1 provided by the present invention, a shared charging, swapping and energy storage integrated machine, hereinafter referred to as the energy storage power supply control technology of the machine, is disclosed. Any power user who wishes to charge a device through the machine needs to send a charging request to the machine. After obtaining the request instruction, the main control module performs power analysis on multiple energy storage power supply modules of the machine itself, and after confirming that the stored power of the multiple energy storage power supply modules can meet the power transmission demand, the main control module selects the energy storage power supply module that at least meets the maximum power transmission demand from the multiple energy storage power supply modules that meet the requirements, and continues to monitor the power until the power user is charged, thereby terminating this round of power supply operation.

[0069] Specifically, before detecting multiple charging interfaces connected to the main control module and obtaining a power supply request, the method further includes:

[0070] Continuously collect the distribution network voltage and obtain the distribution network voltage value;

[0071] If the voltage of the distribution network is lower than the first charging threshold, the main control module is switched to the reverse power supply mode, the power supply energy of the multiple energy storage power supply modules is continuously output to the distribution network end, and the detection of the power supply request of the multiple charging interfaces connected to the main control module is stopped;

[0072] Detect the value of the distribution network voltage. If the value of the distribution network voltage is not lower than the first power stabilization threshold, end the current power supply operation and switch the main control module to the forward power supply mode.

[0073] Embodiment 2:

[0074] The present invention also discloses an embodiment, in which the machine needs to collect and monitor the voltage of the distribution network at all times. When the grid voltage is detected to be too low, below a certain range, or when the time reaches the low point of electricity consumption, the machine is used as an energy storage end, and the grid is changed from a power supply end to a power consumption end. The battery energy of the energy storage power supply module is converted into alternating current through frequency conversion to supply power to the grid, and all power supply requests to external power consumption ends are stopped at the same time.

[0075] By continuously detecting the grid voltage in real time and making the grid voltage reach the first power stabilization threshold, it indicates that the current grid is in normal operation. At this time, all energy storage power supply modules will be disconnected from supplying power to the grid, and the energy storage power supply modules will be charged in reverse, and the power supply request from the power user will be started. During the entire energy storage reverse power supply operation process, this solution needs to continuously collect and analyze grid information and battery status information, and continuously adjust its own decisions according to changes in their status. The technology of the present invention specifically opens up grid power supply detection, and only starts to further open power supply services to the outside world on the premise of fully ensuring the stable and effective operation of the grid, effectively ensuring the safety of grid transmission and reducing maintenance costs.

[0076] Specifically, after the main control module is switched to the reverse power supply mode, the energy storage power supply module that meets the power supply request quantity is allocated to the power supply charging interface that requests power supply to output power, and the method further includes the following:

[0077] Set all energy storage power supply modules participating in the current power supply request to an activated state;

[0078] Stop all energy storage power supply modules set to the activated state from receiving power supply instructions other than the current charging interface;

[0079] Detect the power transmission quantity of the requested power supply charging interface, and if the energy storage power supply module that meets the power supply request quantity is fully charged with the power supply request quantity, end the current power supply operation;

[0080] Set all energy storage power supply modules that are not participating in the current power supply request to standby state and continuously detect power supply instructions.

[0081] More specifically, in order to strengthen the management of multiple energy storage power supply modules, the present invention adopts an active marking method, marking the modules that are supplying power as activated, and marking the modules that are in good condition but not participating in the power supply as standby. The activation state is further restricted so that the energy storage power supply module can only maintain one state at the same time, realizing intelligent management of power supply demand and preventing the chaotic management of multiple energy storage power supply modules from causing production accidents.

[0082] Specifically, after switching the main control module to the reverse power supply mode and generating a power supply instruction to allocate the energy storage power supply module that meets the power supply request quantity to the requested power supply charging interface to output the power:

[0083] Detect multiple power transmission interfaces connected to the main control module and obtain power supply requests;

[0084] If a power supply request from a new distribution network is obtained, the total amount of power supply energy of multiple energy storage power supply modules except those marked as activated is detected. If the total amount of power supply energy of multiple energy storage power supply modules meets the power supply request quantity of the new distribution network, a power supply instruction is generated to allocate the energy storage power supply modules that meet the power supply request quantity of the distribution network to the requested power supply charging interface to output power;

[0085] Repeat the above operations of obtaining the power supply request of the new distribution network and allocating the energy storage power supply modules that meet the power supply request quantity of the new distribution network until the total power supply energy of all the energy storage power supply modules in the standby state cannot meet the first power supply request quantity of the new distribution network to be allocated, mark the corresponding new distribution network as a saturated value network, and set the main control module to the saturated power supply mode;

[0086] Continuously detect the status of multiple energy storage power supply modules marked as activated. If any activated state is changed to standby state and the total power supply energy of all other standby energy storage power supply modules exceeds the saturation value grid, obtain the power supply request interface of the saturation value grid, generate a power supply instruction to distribute the standby energy storage power supply modules that meet the power supply request quantity of the distribution network to the transmission interface of the saturation value grid to output power.

[0087] Embodiment 3:

[0088] As a power supply and energy storage device, the machine needs to take into account the one-to-many situation of the distribution network. Specifically, there may be several distribution networks that need to transmit power at the same time. In this regard, the present invention is designed to register one by one in sequence. When the first distribution network is fully powered, subsequent power supply demand detection is performed at the same time, and the energy storage power supply modules that are already in operation are excluded, and the remaining modules in standby state are redistributed to support the power transmission needs of the second, third and other distribution networks.

[0089] It is particularly important to note that, since the total power supply of the machine is limited, when facing multiple distribution networks, there is a bottleneck in the power supply of the machine, that is, it may happen that all energy storage power supply modules are in operation or the remaining energy storage power supply modules in standby state cannot meet the power supply demand of the next distribution network. At this time, the present invention specifically marks the corresponding new distribution network as a saturated value network, and sets the main control module to a saturated power supply mode to remind the current status.

[0090] The present invention continuously detects the status of multiple energy storage and power supply modules in an activated state. If at least one energy storage and power supply module completes power supply to the distribution network, it will be immediately integrated with the remaining energy storage and power supply modules in a standby state to form a system that can meet the full charging needs of the next distribution network.

[0091] The present invention designs a saturation description state, monitors the state value of the energy storage power supply module in real time, and reasonably allocates the remaining energy storage power supply modules in standby state to ensure that after any energy storage power supply module that is switched from an activated state to a standby state appears, resources are immediately integrated to provide the power transmission needs of the distribution network. The present invention has an intelligent design, does not waste the energy of the energy storage power supply module, achieves timely supervision and timely action, and improves the operating stability of the distribution network.

[0092] Specifically, after marking the corresponding new distribution network as a saturated value power grid and setting the main control module to a saturated power supply mode, the following is also included:

[0093] Setting a first time point t0, where t0 is a corresponding time point for setting the main control module to a saturated power supply mode;

[0094] Based on the main control module, the energy storage power supply module with the shortest time to transform into the standby state among all the energy storage power supply modules in the activated state is obtained, and the corresponding time period to be transformed Δt1 is calculated;

[0095] The number of power supply requests corresponding to the saturation value grid obtained by the main control module is full for a time period of Δt3;

[0096] Send a command of waiting for full charge time Δt1+Δt3 to the saturation value power grid, detect multiple power transmission interfaces connected to the main control module, and obtain a new power supply request;

[0097] After obtaining the power supply request of the new distribution network, a saturated power supply mode warning instruction and a full charge time instruction Δt1+Δt3 are sent to the charging interface corresponding to the power supply request of the new distribution network.

[0098] In saturated power mode:

[0099] The energy storage power supply module with the shortest transition time from all activated states to the standby state is set to Δt1, and the second shortest transition time from all activated states to the standby state is set to Δt2;

[0100] Detect multiple charging interfaces connected to the main control module and obtain new power supply requests;

[0101] The time period in which the number of power supply requests corresponding to the saturated value grid is full is set to Δt3, and the first new distribution network to be allocated after the saturated value grid is set to be the sub-saturated value grid, and the time period in which the number of power supply requests corresponding to it is full is Δt4:

[0102] If Δt3≤Δt4, after Δt1 ends, the main control module generates a power supply instruction to distribute the energy storage power supply module in the current standby state to the transmission interface of the saturated power grid to output power;

[0103] If Δt3>Δt4, Δt2>Δt1, after Δt1 ends, the main control module generates a power supply instruction to distribute the energy storage power supply module in the current standby state to the transmission interface of the saturated power grid to output power;

[0104] If Δt3>Δt4, Δt2=Δt1, directly allocate any energy storage power supply module in all standby states at the current moment that meets the sub-saturation value grid power supply request quantity to the corresponding transmission interface to output power.

[0105] Example 4

[0106] In order to better understand the technical solution of the present invention, the present technology provides another embodiment. Specifically calculate the time Δt3 required for the saturated value grid to be fully charged, and the time period corresponding to the energy storage power supply module with the shortest time to switch to the standby state among all activated states in the current saturated power supply mode, which is Δt1; Δt1+Δt3 indicates the shortest time required for the new distribution network to be fully charged in the saturated state;

[0107] Furthermore, the present invention also fully considers the transmission demand. When the charging time Δt3 of the saturated value grid is less than or equal to the sub-saturated value grid Δt4, the sub-saturated value grid needs to patiently wait for the saturated value grid to complete charging; if Δt3>Δt4, Δt2>Δt1, the sub-saturated value grid needs to patiently wait for the saturated value grid to complete charging; if Δt3>Δt4, Δt2=Δt1, the sub-saturated value grid can be arranged to charge first, the charging time of the saturated value grid remains unchanged, and the sub-saturated value grid can be charged in advance. Based on the charging scheme designed by the present invention, the transmission time of the distribution network is scientifically planned, and the waiting time is saved, thereby improving the market adaptability of the technology of the present invention.

[0108] Specifically, the status of multiple energy storage power supply modules is detected based on the main control module:

[0109] If the total amount of power supply energy of the multiple energy storage power supply modules is detected to be lower than the second charging threshold, the multiple energy storage power supply modules are set to a sleep mode based on the main control module; and the detection of power supply requests of the multiple charging interfaces connected to the main control module is stopped;

[0110] If any output voltage of multiple energy storage power supply modules is detected to be abnormal, the main control module is set to disconnect the energy storage power supply module with the abnormal output voltage, and stop the external power supply operation of the energy storage power supply module with the abnormal output voltage.

[0111] More specifically, the present invention is also designed with a second charging threshold, which is mainly used to detect the discharge status of the energy storage power supply module. When the total power supply energy of the machine is lower than the second charging threshold, it indicates that the machine has a serious shortage of stored electricity and needs to stop supplying power to the outside immediately. At the same time, the present invention also considers the design of health monitoring of the machine during the charging and discharging process, which is specifically manifested in the unfavorable situations such as the quality of the energy storage power supply module material itself and the heat dissipation effect of the charging and discharging process, which may cause the energy storage power supply module to fail or be damaged, thereby causing external power supply failure, burning distribution network equipment, and even affecting the operation of the power grid. Based on this, the present invention innovatively designs a state detection module to perform health detection of the energy storage power supply module at all times. It is not drawn in the figure, and those skilled in the art should understand and master this technology.

[0112] It is particularly important to note that the electrical designs such as module status setting, warning notification, abnormal alarm, etc. designed in the present invention are all existing conventional technologies. They are only used here to explain the content of the technical solution of the present invention, so they are not specifically described in detail in the embodiments. Those skilled in the art should be able to design the structure in combination with existing technologies and common knowledge.

[0113] The present invention also discloses a shared charging and swapping energy storage integrated machine energy storage reverse power supply control system, the system comprising the following:

[0114] A power supply detection module, used to detect multiple power transmission interfaces connected to the main control module and obtain a power supply request;

[0115] A battery power detection module is used to detect the total power supply energy of multiple energy storage power supply modules after obtaining a power supply request for power transmission;

[0116] A first power supply output module is used to allocate energy storage power supply modules that meet the power supply request quantity to the requested power supply charging interface to output power;

[0117] The first power supply stopping module is used to detect the power transmission quantity requested by the power supply charging interface, and if the energy storage power supply module that meets the power supply request quantity is fully charged with the power supply request quantity, the current power supply operation is terminated.

[0118] The power grid detection module is used to continuously collect the voltage of the distribution network and obtain the voltage value of the distribution network;

[0119] A second power supply output module is used to switch the main control module to a reverse power supply mode if the voltage of the distribution network is lower than a first charging threshold, continuously output the power supply energy of the multiple energy storage power supply modules to the distribution network end, and stop detecting power supply requests of the multiple charging interfaces connected to the main control module;

[0120] The second power supply stop module detects the value of the distribution network voltage. If the distribution network voltage value is not lower than the first power stabilization threshold, the current power supply operation is terminated and the main control module is switched to the forward power supply mode.

[0121] It should be noted that the technical means for implementing a reverse power supply control system for a shared integrated charging and swapping energy storage machine in another embodiment of the present invention is the same as that for implementing a reverse power supply control method for a shared integrated charging and swapping energy storage machine, and therefore will not be described in detail here.

[0122] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0123] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0124] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

[0125] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0126] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A method for controlling reverse power supply of a shared charging and swapping energy storage integrated machine, characterized in that: The method comprises the following: Detect multiple power transmission interfaces connected to the main control module and obtain power supply requests; After obtaining the power transmission request, the total power supply energy of multiple energy storage power supply modules is detected. If the total power supply energy meets the power supply request quantity, a power supply instruction is generated to allocate the energy storage power supply modules that meet the power supply request quantity to the requested power supply charging interface to output power; The charging quantity of the power supply charging interface requested is detected, and if the energy storage power supply module that meets the power supply request quantity is fully charged with the power supply request quantity, the current power supply operation is terminated.

2. The energy storage reverse power supply control method of a shared charging, swapping and energy storage integrated machine according to claim 1 is characterized in that: Before detecting multiple power transmission interfaces connected to the main control module and obtaining a power supply request, the method further includes: Continuously collect the distribution network voltage and obtain the distribution network voltage value; If the voltage of the distribution network is lower than the first charging threshold, the main control module is switched to the reverse power supply mode, the power supply energy of the multiple energy storage power supply modules is continuously output to the distribution network end, and the detection of the power supply request of the multiple charging interfaces connected to the main control module is stopped; Detect the value of the distribution network voltage. If the value of the distribution network voltage is not lower than the first power stabilization threshold, end the current power supply operation and switch the main control module to the forward power supply mode.

3. The energy storage reverse power supply control method of a shared charging, swapping and energy storage integrated machine according to claim 2 is characterized in that: After the main control module is switched to the reverse power supply mode, the energy storage power supply module that meets the power supply request quantity is allocated to the requested power supply charging interface to output power, and the method further includes the following: Set all energy storage power supply modules participating in the current power supply request to an activated state; Stop all energy storage power supply modules set to the activated state from receiving power supply instructions other than the current charging interface; Detect the power transmission quantity of the requested power supply charging interface, and if the energy storage power supply module that meets the power supply request quantity is fully charged with the power supply request quantity, end the current power supply operation; Set all energy storage power supply modules that are not participating in the current power supply request to standby state and continuously detect power supply instructions.

4. The energy storage reverse power supply control method of a shared charging, swapping and energy storage integrated machine according to claim 3 is characterized in that: After switching the main control module to the reverse power supply mode and generating a power supply instruction to allocate the energy storage power supply module that meets the power supply request quantity to the requested power supply charging interface to output the power: Detect multiple power transmission interfaces connected to the main control module and obtain power supply requests; If a power supply request from a new distribution network is obtained, the total amount of power supply energy of multiple energy storage power supply modules except those marked as activated is detected. If the total amount of power supply energy of multiple energy storage power supply modules meets the power supply request quantity of the new distribution network, a power supply instruction is generated to allocate the energy storage power supply modules that meet the power supply request quantity of the distribution network to the requested power supply charging interface to output power; Repeat the above operations of obtaining the power supply request of the new distribution network and allocating the energy storage power supply modules that meet the power supply request quantity of the new distribution network until the total power supply energy of all the energy storage power supply modules in the standby state cannot meet the first power supply request quantity of the new distribution network to be allocated, mark the corresponding new distribution network as a saturated value network, and set the main control module to the saturated power supply mode; Continuously detect the status of multiple energy storage power supply modules marked as activated. If any activated state is changed to standby state and the total power supply energy of all other standby energy storage power supply modules exceeds the saturation value grid, obtain the power supply request interface of the saturation value grid, generate a power supply instruction to distribute the standby energy storage power supply modules that meet the power supply request quantity of the distribution network to the transmission interface of the saturation value grid to output power.

5. The energy storage reverse power supply control method of a shared charging, swapping and energy storage integrated machine according to claim 4 is characterized in that: After marking the corresponding new distribution network as a saturated value power grid and setting the main control module to a saturated power supply mode, the following is also included: Setting a first time point t0, where t0 is a corresponding time point for setting the main control module to a saturated power supply mode; Based on the main control module, the energy storage power supply module with the shortest time to transform into the standby state among all the energy storage power supply modules in the activated state is obtained, and the corresponding time period to be transformed Δt1 is calculated; The number of power supply requests corresponding to the saturation value grid obtained by the main control module is full for a time period of Δt3; Send a command of waiting for full charge time Δt1+Δt3 to the saturation value power grid, detect multiple power transmission interfaces connected to the main control module, and obtain a new power supply request; After obtaining the power supply request of the new distribution network, a saturated power supply mode warning instruction and a full charge time instruction Δt1+Δt3 are sent to the charging interface corresponding to the power supply request of the new distribution network.

6. A method for controlling reverse power supply of a shared charging, swapping and energy storage integrated machine according to claim 5, characterized in that: In saturated power mode: The energy storage power supply module with the shortest transition time from all activated states to the standby state is set to Δt1, and the second shortest transition time from all activated states to the standby state is set to Δt2; Detect multiple charging interfaces connected to the main control module and obtain new power supply requests; The time period in which the number of power supply requests corresponding to the saturated value grid is full is set to Δt3, and the first new distribution network to be allocated after the saturated value grid is set to be the sub-saturated value grid, and the time period in which the number of power supply requests corresponding to it is full is Δt4: If Δt3≤Δt4, after Δt1 ends, the main control module generates a power supply instruction to distribute the energy storage power supply module in the current standby state to the transmission interface of the saturated power grid to output power; If Δt3>Δt4, Δt2>Δt1, after Δt1 ends, the main control module generates a power supply instruction to distribute the energy storage power supply module in the current standby state to the transmission interface of the saturated power grid to output power; If Δt3>Δt4, Δt2=Δt1, directly allocate any energy storage power supply module in all standby states at the current moment that meets the sub-saturation value grid power supply request quantity to the corresponding transmission interface to output power.

7. A method for controlling reverse power supply of a shared charging and swapping energy storage integrated machine according to claim 6, characterized in that: Based on the main control module, the status of multiple energy storage power supply modules is detected: If the total amount of power supply energy of the multiple energy storage power supply modules is detected to be lower than the second charging threshold, the multiple energy storage power supply modules are set to a sleep mode based on the main control module; and the detection of power supply requests of the multiple charging interfaces connected to the main control module is stopped; If it is detected that the output voltage of any one of the multiple energy storage power supply modules is abnormal, the main control module is set to disconnect the energy storage power supply module with the abnormal output voltage, and stop the external power supply operation of the energy storage power supply module with the abnormal output voltage.

8. A shared charging and swapping energy storage integrated machine with reverse power supply control system, characterized in that: The system comprises the following: A power supply detection module, used to detect multiple power transmission interfaces connected to the main control module and obtain a power supply request; A battery power detection module is used to detect the total power supply energy of multiple energy storage power supply modules after obtaining a power supply request for power transmission; A first power supply output module is used to allocate energy storage power supply modules that meet the power supply request quantity to the requested power supply charging interface to output power; The first power supply stopping module is used to detect the power transmission quantity requested by the power supply charging interface, and if the energy storage power supply module that meets the power supply request quantity is fully charged with the power supply request quantity, the current power supply operation is terminated.

9. The energy storage reverse power supply control system of a shared charging, swapping and energy storage integrated machine according to claim 8, characterized in that: The system further comprises: The power grid detection module is used to continuously collect the voltage of the distribution network and obtain the voltage value of the distribution network; A second power supply output module is used to switch the main control module to a reverse power supply mode if the voltage of the distribution network is lower than a first charging threshold, continuously output the power supply energy of the multiple energy storage power supply modules to the distribution network end, and stop detecting power supply requests of the multiple charging interfaces connected to the main control module; The second power supply stop module detects the value of the distribution network voltage. If the distribution network voltage value is not lower than the first power stabilization threshold, the current power supply operation is terminated and the main control module is switched to the forward power supply mode.

10. A computer-readable storage medium for storing a computer program or code, characterized in that: When the computer program or code is executed by a processor, the energy storage reverse power supply control method of the shared charging and swapping energy storage integrated machine as described in any one of claims 1 to 8 is implemented.

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