Power type battery system and energy type battery system mixed use system and equipment
By connecting power batteries and energy batteries in parallel, and using the shunt and DC/DC module for current distribution and regulation, the problems of current consistency and voltage fluctuations in the prior art are solved, and the comprehensive effect of high power and long battery life is achieved.
Patent Information
- Application Number
- CN202510137942.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2025-04-29
AI Technical Summary
In the prior art, power-type batteries and energy-type batteries have current consistency problems when mixed and used, resulting in power-type batteries being unable to fully utilize the advantages of large currents, and the voltage fluctuations in the series system are large, which poses safety risks.
The power battery system and energy battery system are connected in parallel, and the current distribution and adjustment are performed through the shunt module and the DC/DC module to realize the synchronous application and collaborative operation of the power battery and the energy battery.
It realizes the continuous supply of energy with long battery life while recovering and releasing high-power energy in a short time, reducing the number and cost of battery cells, and improving the safety and reliability of the system.
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Figure CN119906140A_ABST
Abstract
Description
Technical Field
[0002] The present invention relates to the technical field of hybrid batteries, and in particular to a system and equipment for hybrid use of a power type battery system and an energy type battery system. Background Art
[0003] At present, there are basically two main directions in the field of battery application: energy batteries and power batteries. Energy batteries are characterized by high energy density but low charge and discharge rates, that is, they can achieve long-term power support, but the charge and discharge power is limited. Power batteries are characterized by low energy density but high charge and discharge rates, which can meet the charging and discharging of large currents in a short period of time and achieve greater power support. The advantages and disadvantages of the two batteries are obvious. If the two can be used in combination, it will not only meet the power system's demand for high power, but also meet the power system's demand for continuous power supply, which will greatly expand the application scenarios of batteries.
[0004] In the prior art, the Chinese invention patent with application number 202211203965 provides a method for using a high-rate battery cell and an energy-type battery cell in series, which provides a solution for using a power-type battery and an energy-type battery in series. However, this solution still has the following shortcomings: 1. The currents of different subsystems connected in series are consistent, that is, the currents of power batteries and energy batteries are consistent. In order to give full play to the high current advantage of power batteries, more energy battery subsystems need to be connected in parallel. When there are enough parallel connections to meet the high current requirements, the number of cells increases and the power batteries are no longer necessary. If the number of energy batteries connected in parallel is not increased, the current of the entire series system will be limited, and the power batteries will also not be able to play a role.
[0005] 2. Due to the low energy density of power batteries, they will be filled or discharged first in the series system. In order to prevent overcharging or over-discharging, the series subsystem needs to be disconnected at this time. In the process of disconnecting and reconnecting the series circuit, the system circuit will be disconnected and lose power for a short time, which poses a safety risk. If the subsystem capacity is increased by increasing the number of power batteries in parallel, the cost will be greatly increased, and the meaning of using power batteries will be lost.
[0006] 3. The total voltage of the series system is equal to the sum of the voltages of the two subsystems. During the charging and discharging process, the voltage changes of the two subsystems will be superimposed and reflected in the total system, resulting in large voltage fluctuations and unfriendly application. Summary of the invention
[0007] The present invention provides a hybrid system and device of a power type battery system and an energy type battery system that can achieve short-time high-power energy recovery and short-time high-power energy release while realizing long-term continuous energy supply, which can solve at least one of the above-mentioned technical problems.
[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions: A system for hybrid use of a power type battery system and an energy type battery system, including an energy use / energy recovery system, and also including a power type battery system and an energy type battery system connected in parallel, as well as a regulation system and a controller module; The regulating system is connected between the energy use / energy recovery system and the power type battery system and / or the energy type battery system, and is used for forward and reverse voltage and current regulation; The power battery system comprises power batteries connected in series and parallel, a high-voltage switch box BDU1 and a battery management system BMS1, wherein the high-voltage switch box BDU1 is connected between the output end of the power battery system and the power battery, and is used to realize the on-off between the power battery and the main circuit, and the battery management system BMS1 is connected to the power battery, and is used to monitor the real-time working parameters of the power battery and analyze the real-time working status of the power battery; The energy type battery system comprises energy type batteries, a high voltage switch box BDU2 and a battery management system BMS2 connected in series and parallel, the high voltage switch box BDU2 is connected between the output end of the energy type battery system and the energy type battery, and is used to realize the on-off between the energy type battery and the main circuit, and the battery management system BMS2 is connected to the energy type battery, and is used to monitor the real-time working parameters of the energy type battery and analyze the real-time working status of the energy type battery; The controller module establishes a communication connection with the battery management system BMS1 and the battery management system BMS2 to receive battery status information fed back by the two, analyze and issue control instructions for the high-voltage switch box BDU1 and the high-voltage switch box BDU2 to perform actions.
[0009] Furthermore, the regulation system is a shunt module, and the shunt module is used to distribute the total current into different branch currents in proportion, or to aggregate different branch currents into the total current.
[0010] Furthermore, the positive electrode of the power type battery system is connected to the positive electrode of the energy type battery system, and the shunt end of the shunt module is installed between the connection point between the negative electrode of the power type battery system and the negative electrode of the energy type battery system.
[0011] Furthermore, the negative electrode of the power type battery system is connected to the negative electrode of the energy type battery system, and the shunt end of the shunt module is installed between the positive electrode of the power type battery system and the positive electrode of the energy type battery system.
[0012] Furthermore, there are two shunt modules, the shunt end of one shunt module is installed between the positive electrode of the power type battery system and the positive electrode connection of the energy type battery system, and the shunt end of the other shunt module is installed between the negative electrode of the power type battery system and the negative electrode connection of the energy type battery system.
[0013] Furthermore, the regulation system is a DC / DC module, and the DC / DC module is used to regulate the energy of the main circuit as needed to meet the available parameters of the sub-circuit, or to reversely regulate the energy of the sub-circuit to meet the available parameters of the main circuit.
[0014] Furthermore, the positive and negative poles of the power type battery system are connected to the positive and negative poles on the sub-circuit side of the DC / DC module, the positive and negative poles on the main circuit side of the DC / DC module are connected to the positive and negative poles of the main circuit, and the energy type battery system is connected to the positive and negative poles of the main circuit.
[0015] Furthermore, the positive and negative poles of the energy-type battery system are connected to the positive and negative poles on the sub-circuit side of the DC / DC module, the positive and negative poles on the main circuit side of the DC / DC module are connected to the positive and negative poles of the main circuit, and the power-type battery system is connected to the positive and negative poles of the main circuit.
[0016] Furthermore, the DC / DC module has two, the positive and negative poles of the power battery system are connected to the positive and negative poles on the sub-loop side of one of the DC / DC modules, and the positive and negative poles on the main loop side of the DC / DC module are connected to the positive and negative poles on the main loop, and the positive and negative poles of the energy battery system are connected to the positive and negative poles on the sub-loop side of another DC / DC module, and the positive and negative poles on the main loop side of the DC / DC module are connected to the positive and negative poles on the main loop.
[0017] The device includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor implements the above-mentioned power type battery system and energy type battery system mixed use system.
[0018] The beneficial effects of the present invention are embodied in: 1. Realize the simultaneous use of power batteries and energy batteries in the same system.
[0019] 2. It realizes simultaneous or independent switching of power type batteries and energy type batteries when working together in the same system.
[0020] 3. When performing charging and discharging operations in the same system, different proportions of current distribution are given to power type batteries and energy type batteries, thus completing power distribution efficiently.
[0021] 4. It realizes the advantages of high-power charging and discharging in a short time and long-endurance energy supply when performing charging and discharging operations in the same system.
[0022] 5. In application scenarios that require both high-power charging and discharging and long driving range, the number of cells can be reduced and cost investment can be greatly reduced by combining a small number of power-type cells with energy-type cells with appropriate driving range. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.
[0024] Figure 1 This is the first connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage negative end of the parallel system to distribute current.
[0025] Figure 2 This is the second connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage negative end of the parallel system to distribute current.
[0026] Figure 3 This is the third connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage negative end of the parallel system to distribute current.
[0027] Figure 4 This is the fourth connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high-voltage negative end of the parallel system to distribute current.
[0028] Figure 5 This is the first connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage positive end of the parallel system to distribute current.
[0029] Figure 6 This is the second connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage positive end of the parallel system to distribute current.
[0030] Figure 7 This is the third connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage positive end of the parallel system to distribute current.
[0031] Figure 8 This is the fourth connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage positive end of the parallel system to distribute current.
[0032] Fig. 9This is the first connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage positive end and negative end of the parallel system to distribute current.
[0033] Fig.10 This is the second connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage positive end and negative end of the parallel system to distribute current.
[0034] Fig.11 This is the third connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage positive end and negative end of the parallel system to distribute current.
[0035] Fig.12 This is the fourth connection implementation mode of the BMS when the shunt of the first embodiment of the present invention is installed at the high voltage positive end and negative end of the parallel system to distribute current.
[0036] Fig.13 This is the first resistor access method in the sub-circuit when the shunt distributes the total current in the first embodiment of the present invention.
[0037] Fig.14 This is the second resistor access method in the sub-circuit when the shunt distributes the total current in the first embodiment of the present invention.
[0038] Fig.15 This is the third resistor access method in the sub-circuit when the shunt distributes the total current in the first embodiment of the present invention.
[0039] Fig.16 This is one of the ways to realize parallel combination by integrating multiple resistors in parallel on one sub-circuit in the first embodiment of the present invention and switching the parallel branches through an intelligent control system.
[0040] Fig.17 This is the second way of implementing the parallel combination by integrating multiple resistors in parallel on one sub-circuit in the first embodiment of the present invention and switching the parallel branches on and off through the intelligent control system.
[0041] Fig.18 In the first embodiment of the present invention, integrated multi-channel resistors are installed in parallel on all sub-circuits, and the parallel branches are switched on and off by an intelligent control system to realize a parallel combination.
[0042] Fig.19 This is the second way of implementing the parallel combination by installing integrated multi-channel resistors in parallel on all sub-circuits in the first embodiment of the present invention, and switching the parallel branches on and off through the intelligent control system.
[0043] Fig. 20 This is the first connection implementation mode of the BMS when the DC / DC of the second embodiment of the present invention is installed on the power battery side of the parallel system for energy distribution.
[0044] Fig.21 This is the second connection implementation mode of the BMS when the DC / DC of the second embodiment of the present invention is installed on the power battery side of the parallel system for energy distribution.
[0045] Fig. 22 This is the third connection implementation mode of the BMS when the DC / DC of the second embodiment of the present invention is installed on the power battery side of the parallel system for energy distribution.
[0046] Fig.23 This is the first connection implementation mode of the BMS when the DC / DC of the second embodiment of the present invention is installed on the energy type battery side of the parallel system for energy distribution.
[0047] Fig.24 This is the second connection implementation mode of the BMS when the DC / DC of the second embodiment of the present invention is installed on the energy type battery side of the parallel system for energy distribution.
[0048] Fig.25 This is the third connection implementation mode of the BMS when the DC / DC of the second embodiment of the present invention is installed on the energy type battery side of the parallel system for energy distribution.
[0049] Fig.26 This is the first connection implementation mode of the BMS when the DC / DC of the second embodiment of the present invention is installed on the energy battery and power battery sides of the parallel system for energy distribution.
[0050] Fig. 27 This is the second connection implementation mode of the BMS when the DC / DC of the second embodiment of the present invention is installed on the energy battery and power battery side of the parallel system for energy distribution.
[0051] Fig.28 This is the third connection implementation mode of the BMS when the DC / DC of the second embodiment of the present invention is installed on the energy battery and power battery sides of the parallel system for energy distribution.
[0052] Fig.29 It is a structural block diagram of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION
[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0054] It should be noted that the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0055] Embodiment 1: The embodiment of the present invention provides a hybrid use system of a power type battery system and an energy type battery system, including an energy use / energy recovery system, and also including a power type battery system and an energy type battery system connected in parallel, as well as a shunt module and a controller module; The shunt module is connected between the energy use / energy recovery system and the power type battery system and / or the energy use / energy recovery system and the energy type battery system, and is used to distribute the total current into different branch currents in proportion, or to aggregate different branch currents into the total current; The power battery system comprises power batteries connected in series and parallel, a high-voltage switch box BDU1 and a battery management system BMS1, wherein the high-voltage switch box BDU1 is connected between the output end of the power battery system and the power battery, and is used to realize the on-off between the power battery and the main circuit, and the battery management system BMS1 is connected to the power battery, and is used to monitor the real-time working parameters of the power battery and analyze the real-time working status of the power battery; The energy type battery system comprises energy type batteries, a high voltage switch box BDU2 and a battery management system BMS2 connected in series and parallel, the high voltage switch box BDU2 is connected between the output end of the energy type battery system and the energy type battery, and is used to realize the on-off between the energy type battery and the main circuit, and the battery management system BMS2 is connected to the energy type battery, and is used to monitor the real-time working parameters of the energy type battery and analyze the real-time working status of the energy type battery; The controller module establishes a communication connection with the battery management system BMS1 and the battery management system BMS2 to receive battery status information fed back by the two, analyze and issue control instructions for the high-voltage switch box BDU1 and the high-voltage switch box BDU2 to perform actions.
[0056] In this first embodiment, the diverter module is used to distribute different currents to different battery systems during the charging and discharging process, and the controller module is used to communicate with the application system, read the status of different battery systems, control the connection or disconnection of two independent systems, and realize the distribution of energy when charging and discharging two different types of battery systems.
[0057] In this embodiment 1, there is the following connection mode 1: the positive electrode of the power type battery system is connected to the positive electrode of the energy type battery system, and the shunt end of the shunt module is installed between the connection point between the negative electrode of the power type battery system and the negative electrode of the energy type battery system.
[0058] In this embodiment 1, there is the following connection mode 2: the negative electrode of the power type battery system is connected to the negative electrode of the energy type battery system, and the shunt end of the shunt module is installed between the positive electrode of the power type battery system and the positive electrode connection of the energy type battery system.
[0059] In this embodiment one, there is the following connection mode 3: there are two shunt modules, the shunt end of one shunt module is installed between the positive pole of the power type battery system and the positive pole connection of the energy type battery system, and the shunt end of the other shunt module is installed between the negative pole of the power type battery system and the negative pole connection of the energy type battery system.
[0060] Combining the above three connection methods, when the shunt is installed at the negative end of the high voltage of the parallel system for current distribution, the different connection implementation methods of BMS are as follows: Figure 1-Figure 4 As shown, when the shunt is installed at the positive end of the high voltage of the parallel system for current distribution, the different connection implementation methods of BMS are as follows Figure 5-Figure 8 As shown in the figure, when the shunt is installed at the positive and negative ends of the high voltage parallel system for current distribution, the different connection implementation methods of BMS are as follows Figure 9-12 shown.
[0061] In the first embodiment, a current splitting loop is formed between the splitting end of the splitter module and the power type battery system or the energy type battery system.
[0062] Regarding the above-mentioned sub-current loop, there is the following setting mode 1: a current regulating resistor is connected in series to one of the sub-current loops, or to each of the sub-current loops. The current divider scheme for distributing the total current by using different resistor connection methods in the sub-circuit is as follows: Figure 13-Figure 15 shown.
[0063] Regarding the above-mentioned sub-current loops, there is the following setting method 2: an adjustment execution circuit is provided on one of the sub-current loops, or on each of the sub-current loops.
[0064] In the above-mentioned setting mode 2, the regulation execution circuit is composed of a plurality of parallel sub-loops, and each sub-loop is composed of a fixed-value resistor and a controllable on-off switch connected in series.
[0065] See also Figure 16-Figure 17 , multiple resistors are integrated in parallel on one sub-circuit, and the parallel branches are turned on and off according to needs through the intelligent control system to achieve different parallel combinations, change the total current regulation resistance value, and finally realize real-time dynamic current distribution changes.
[0066] See also Figure 18-19 Integrated multi-channel resistors are installed in parallel on all sub-circuits. The intelligent control system switches on and off the parallel branches as needed to achieve different parallel combinations, change the total current regulation resistance value, and ultimately achieve real-time dynamic current distribution changes.
[0067] Embodiment 2: The embodiment of the present invention provides a hybrid use system of a power type battery system and an energy type battery system, including an energy use / energy recovery system, a power type battery system and an energy type battery system connected in parallel, a DC / DC module and a controller module; The DC / DC module is connected between the energy use / energy recovery system and the power type battery system and / or the energy use / energy recovery system and the energy type battery system, and is used to adjust the main circuit energy as needed to meet the sub-circuit available parameters, or reversely adjust the sub-circuit energy to meet the main circuit available parameters; The power battery system comprises power batteries connected in series and parallel, a high-voltage switch box BDU1 and a battery management system BMS1, wherein the high-voltage switch box BDU1 is connected between the output end of the power battery system and the power battery, and is used to realize the on-off between the power battery and the main circuit, and the battery management system BMS1 is connected to the power battery, and is used to monitor the real-time working parameters of the power battery and analyze the real-time working status of the power battery; The energy type battery system comprises energy type batteries, a high voltage switch box BDU2 and a battery management system BMS2 connected in series and parallel, the high voltage switch box BDU2 is connected between the output end of the energy type battery system and the energy type battery, and is used to realize the on-off between the energy type battery and the main circuit, and the battery management system BMS2 is connected to the energy type battery, and is used to monitor the real-time working parameters of the energy type battery and analyze the real-time working status of the energy type battery; The controller module establishes a communication connection with the battery management system BMS1 and the battery management system BMS2 to receive battery status information fed back by the two, analyze and issue control instructions for the high-voltage switch box BDU1 and the high-voltage switch box BDU2 to perform actions.
[0068] In the second embodiment, the voltage of the main circuit can be higher than, lower than or equal to the voltage of the sub-circuit.
[0069] In this second embodiment, there is the following connection method 1: the positive and negative poles of the power type battery system are connected to the positive and negative poles on the sub-circuit side of the DC / DC module, the positive and negative poles on the main circuit side of the DC / DC module are connected to the positive and negative poles of the main circuit, and the energy type battery system is connected to the positive and negative poles of the main circuit.
[0070] In this second embodiment, there is the following connection mode 2: the positive and negative poles of the energy type battery system are connected to the positive and negative poles on the sub-circuit side of the DC / DC module, the positive and negative poles on the main circuit side of the DC / DC module are connected to the positive and negative poles of the main circuit, and the power type battery system is connected to the positive and negative poles of the main circuit.
[0071] In this embodiment 2, there is the following connection mode 3: the DC / DC modules have two, the positive and negative poles of the power type battery system are connected to the positive and negative poles on the sub-loop side of one of the DC / DC modules, and the positive and negative poles on the main loop side of the DC / DC module are connected to the positive and negative poles on the main loop, the positive and negative poles of the energy type battery system are connected to the positive and negative poles on the sub-loop side of another DC / DC module, and the positive and negative poles on the main loop side of the DC / DC module are connected to the positive and negative poles on the main loop.
[0072] Combining the above three connection methods, when DC / DC is installed on the power battery side of the parallel system for energy distribution, different BMS connection implementation methods are as follows: Figure 20-22 As shown in the figure, when the DC / DC is installed on the energy type battery side of the parallel system for energy distribution, the different connection implementation methods of BMS are as follows Figure 23-Figure 25 As shown in the figure, when DC / DC is installed on the energy battery and power battery side of the parallel system for energy distribution, the different connection implementation methods of BMS are as follows Figure 26-Figure 28 shown.
[0073] In combination with the above-mentioned embodiment one and embodiment two, it can be known that in the parallel system composed of the power battery system and the energy battery system of the present application, a large current can be automatically distributed to the power battery during the charging and discharging process, so that the system as a whole can not only meet the instantaneous high-power charging and discharging needs, but also meet the total power consumption needs through the energy battery. In this way, the system can realize short-time high-power energy recovery and short-time high-power energy release while realizing continuous energy supply for long-term battery life.
[0074] It should be noted that: The power type battery refers to an independent power type battery cell or a battery formed by connecting power type battery cells in series or in parallel.
[0075] The energy-type battery refers to an independent energy-type battery cell or a battery formed by connecting energy-type battery cells in series or in parallel.
[0076] The battery management system BMS1 can monitor the sensor parameters such as the string voltage, total voltage, total current, temperature at different battery positions, environmental data monitoring, etc. of the power battery in real time, and obtain the real-time status of the power battery through an algorithm, and feed back the status information to the controller module, receive the instructions of the controller module, and control the on and off of the high-voltage switch box BDU1 and other subsystems to perform actions. It should be noted that the battery management system BMS1 described in this application is a representation of a function, which can be an independent entity or the same entity as the controller module. This application does not make specific limitations here, and is mainly based on realizing the functions of the battery management system BMS1.
[0077] The battery management system BMS2 can monitor the energy battery's string voltage, total voltage, total current, battery temperature at different locations, environmental data monitoring and other sensor parameters in real time, and obtain the real-time status of the energy battery through an algorithm, and feed back the status information to the controller module, receive instructions from the controller module, and control the on and off subsystems of the high-voltage switch box BDU2 to perform actions. It should be noted that the battery management system BMS2 described in this application is a representation of a function, which can be either an independent entity or the same entity as the controller module. This application does not make specific limitations here, and is mainly based on realizing the functions of the battery management system BMS2.
[0078] The controller module can receive the status information of the battery system fed back by the battery management system BMS1 and the battery management system BMS2 in real time, communicate interactively with the whole vehicle, receive the whole vehicle control instructions, feed back the status information to the whole vehicle, comprehensively determine the on and off of the battery system after the upper and lower system information, control the power battery system and the energy battery system to be on and off at the same time, control the power battery system to be on and off independently, control the energy battery system to be on and off independently, etc. It should be noted that the controller module described in this application is a functional expression, which can be an independent entity and form a complete system with the battery management system BMS1 and the battery management system BMS2; it can also be the battery management system BMS1 + the battery management system BMS2 + the controller module to form an entity; it can also be the battery management system BMS1 + the controller module to form an entity, and together with the battery management system BMS2, it can also be the battery management system BMS2 + the controller module to form an entity, and together with the battery management system BMS1, it can form a complete system. This application does not make specific restrictions here, and mainly implements the function of the controller module.
[0079] See also Fig.29 An embodiment of the present invention further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor implements the above-mentioned power-type battery system and energy-type battery system hybrid use system.
[0080] It should be noted that those skilled in the art can understand that all or part of the steps implemented in the embodiments of the present invention can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using hardware, it can be implemented in whole or in part in the form of purchased standard parts or modified parts. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).
[0081] In summary, the present invention provides a hybrid system of a power battery system and an energy battery system, which adopts a parallel connection system and has the following advantages: 1. The total voltage of the subsystems is consistent, so the system voltage fluctuation is small, and the safety and reliability of the circuit system are higher; 2. The large current of the system is split into larger and smaller sub-currents through the shunt module. The larger current flows through the power battery and the smaller current flows through the energy battery. The power distribution is reasonable and efficient; 3. When a subsystem is full or empty, the subsystem can be directly cut off without causing the total system to lose power, and the application and response capabilities are more flexible.
[0082] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A hybrid system of a power type battery system and an energy type battery system, including an energy use / energy recovery system, characterized in that: Also included are a power type battery system and an energy type battery system connected in parallel, as well as a regulation system and a controller module; The regulating system is connected between the energy use / energy recovery system and the power type battery system and / or the energy type battery system, and is used for forward and reverse voltage and current regulation; The power battery system comprises power batteries connected in series and parallel, a high-voltage switch box BDU1 and a battery management system BMS1, wherein the high-voltage switch box BDU1 is connected between the output end of the power battery system and the power battery, and is used to realize the on-off between the power battery and the main circuit, and the battery management system BMS1 is connected to the power battery, and is used to monitor the real-time working parameters of the power battery and analyze the real-time working status of the power battery; The energy type battery system comprises energy type batteries, a high voltage switch box BDU2 and a battery management system BMS2 connected in series and parallel, the high voltage switch box BDU2 is connected between the output end of the energy type battery system and the energy type battery, and is used to realize the on-off between the energy type battery and the main circuit, and the battery management system BMS2 is connected to the energy type battery, and is used to monitor the real-time working parameters of the energy type battery and analyze the real-time working status of the energy type battery; The controller module establishes a communication connection with the battery management system BMS1 and the battery management system BMS2 to receive battery status information fed back by the two, analyze and issue control instructions for the high-voltage switch box BDU1 and the high-voltage switch box BDU2 to perform actions.
2. The hybrid system of the power type battery system and the energy type battery system as claimed in claim 1, characterized in that: The regulating system is a shunt module, which is used to distribute the total current into different branch currents in proportion, or to aggregate different branch currents into the total current.
3. The hybrid system of the power type battery system and the energy type battery system as claimed in claim 2, characterized in that: The positive electrode of the power type battery system is connected to the positive electrode of the energy type battery system, and the shunt end of the shunt module is installed between the connection point of the negative electrode of the power type battery system and the negative electrode of the energy type battery system.
4. The hybrid system of the power type battery system and the energy type battery system as claimed in claim 2, characterized in that: The negative electrode of the power type battery system is connected to the negative electrode of the energy type battery system, and the shunt end of the shunt module is installed between the positive electrode of the power type battery system and the positive electrode connection of the energy type battery system.
5. The hybrid system of the power type battery system and the energy type battery system as claimed in claim 2, characterized in that: There are two shunt modules, one shunt end of the shunt module is installed between the positive electrode of the power type battery system and the positive electrode connection of the energy type battery system, and the other shunt end of the shunt module is installed between the negative electrode of the power type battery system and the negative electrode connection of the energy type battery system.
6. The hybrid system of the power type battery system and the energy type battery system as claimed in claim 1, characterized in that: The regulation system is a DC / DC module, and the DC / DC module is used to regulate the energy of the main circuit as needed to meet the available parameters of the sub-circuit, or to reversely regulate the energy of the sub-circuit to meet the available parameters of the main circuit.
7. The hybrid system of the power type battery system and the energy type battery system as claimed in claim 6, characterized in that: The positive and negative electrodes of the power battery system are connected to the positive and negative electrodes on the sub-circuit side of the DC / DC module, the positive and negative electrodes on the main circuit side of the DC / DC module are connected to the positive and negative electrodes of the main circuit, and the energy battery system is connected to the positive and negative electrodes of the main circuit.
8. The hybrid system of the power type battery system and the energy type battery system as claimed in claim 6, characterized in that: The positive and negative electrodes of the energy-type battery system are connected to the positive and negative electrodes on the sub-circuit side of the DC / DC module, the positive and negative electrodes on the main circuit side of the DC / DC module are connected to the positive and negative electrodes of the main circuit, and the power-type battery system is connected to the positive and negative electrodes of the main circuit.
9. The hybrid system of the power type battery system and the energy type battery system as claimed in claim 6, characterized in that: The DC / DC module has two, the positive and negative poles of the power battery system are connected to the positive and negative poles on the sub-circuit side of one DC / DC module, and the positive and negative poles on the main circuit side of the DC / DC module are connected to the positive and negative poles on the main circuit, the positive and negative poles of the energy battery system are connected to the positive and negative poles on the sub-circuit side of another DC / DC module, and the positive and negative poles on the main circuit side of the DC / DC module are connected to the positive and negative poles on the main circuit.
10. The device, characterized in that The system comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor implements a hybrid use system of a power type battery system and an energy type battery system as claimed in any one of claims 1 to 9.
Citation Information
Patent Citations
Energy conversion device and vehicle
CN117818418A