Power-driven acceleration conversion electric energy device

Abstract

The invention relates to the technical field of energy management, in particular to a device for converting power-driven acceleration into electric energy. The present invention comprises: a power-driven unit configured to provide initial power and adjust its output through a control system to adapt to different driving modes; and the power management module is configured to monitor and adjust electric energy distribution in real time. Through the efficient energy conversion module, the conversion efficiency of electric energy can be optimized, energy loss can be reduced, the overall performance is improved, meanwhile, an intelligent control algorithm monitors and adjusts system parameters in real time and optimizes power output, in addition, the optimized energy storage and management system effectively monitors the battery state, prolongs the service life of the battery and improves the energy utilization rate, and the service life of the battery is prolonged. And the energy recovery system can efficiently recover kinetic energy and convert the kinetic energy into electric energy in the braking process, the energy utilization rate of the system is further improved, real-time cooperation of all the modules is ensured through communication buses between the modules, and finally the energy efficiency is improved and energy is recovered.

Description

Technical Field

[0001] The invention relates to the technical field of energy management, and in particular to a power-driven accelerated conversion electric energy device. Background Art

[0002] As the world pays more and more attention to environmental protection and energy efficiency, traditional fuel vehicles are facing severe challenges. As an important representative of clean energy vehicles, electric vehicles are gradually becoming the development direction of the automotive industry. The core of electric vehicles lies in their power drive system and electric energy management system, which directly determine the vehicle's cruising range, acceleration performance, energy utilization efficiency and overall driving experience. In terms of power drive system, traditional electric vehicles usually use a single-mode power electronic converter to drive the motor. Although this method is simple, it is difficult to achieve efficient energy conversion under different working conditions. For example, in different stages such as vehicle starting, acceleration and high-speed driving, the electric energy and power requirements of the motor vary significantly. If a fixed-mode power electronic converter is used, these requirements cannot be fully met, resulting in energy waste and reduced efficiency. In addition, the electric energy management system of electric vehicles also faces many challenges. As the main energy storage unit of electric vehicles, the performance of the battery pack directly affects the vehicle's cruising range and reliability.

[0003] For example, the prior art CN116461344A discloses a driving kinetic energy recovery method, device, equipment, medium and program product, which relates to the field of driving kinetic energy recovery of electric vehicles. The method comprises: obtaining first vehicle driving information of an electric vehicle in a first driving cycle, responding to receiving a driving kinetic energy recovery request, determining a first driving condition of the electric vehicle in the first driving cycle based on the first vehicle driving information, determining a target power generation torque based on the first vehicle driving information and the first driving condition, and controlling the electric vehicle to recover driving kinetic energy based on the target power generation torque. It can avoid safety accidents and energy (including kinetic energy and electrical energy) conversion losses caused by driving kinetic energy recovery when the driving condition of the vehicle does not allow driving kinetic energy recovery, thereby improving the efficiency of driving kinetic energy recovery and the safety of the driver during driving. However, the charging and discharging process of the battery pack is affected by many factors, such as temperature, current, voltage, etc., and changes in these factors may have an adverse effect on the health and service life of the battery pack. Therefore, how to effectively manage the charging and discharging process of the battery pack and ensure the performance and safety of the battery pack is a key issue that needs to be solved by the electric energy management system of electric vehicles.

[0004] In order to solve the above problems, many new types of power-driven accelerated conversion electric energy devices have emerged in recent years. These devices have achieved comprehensive optimization of the power drive system and electric energy management system by introducing technical means such as efficient energy conversion modules, intelligent control algorithm modules and optimized energy storage and management systems. Among them, the efficient energy conversion module adopts advanced technologies such as multi-level inverters or matrix converters, which can automatically switch working modes under different working conditions to achieve efficient energy conversion; the intelligent control algorithm module uses advanced technologies such as big data analysis and machine learning algorithms to monitor the vehicle driving status, battery status and environmental parameters in real time, and adjust the working mode of the energy conversion module and the control strategy of the motor accordingly to optimize energy utilization efficiency; the optimized energy storage and management system integrates components such as battery management units and energy recovery systems to achieve accurate management and efficient utilization of battery packs. However, although these new power-driven accelerated conversion electric energy devices have made significant technical progress, there are still some problems and challenges: the existing technology is not ideal for improving energy conversion efficiency and how to better protect energy recovery battery packs. There is room for improvement. For this reason, we propose a power-driven accelerated conversion electric energy device. Summary of the invention

[0005] The purpose of the present invention is to provide a power-driven accelerated conversion electrical energy device to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] Power drive accelerated conversion electric energy device, including:

[0008] a power drive unit configured to provide initial power and adjust its output to suit different driving modes through a control system;

[0009] a power management module configured to monitor and regulate power distribution in real time;

[0010] A conversion device configured to convert input power into required electrical energy;

[0011] control systems, configured to optimize overall system performance;

[0012] A high-efficiency energy conversion module, comprising at least one power electronic converter, for converting the electric energy stored in the energy storage unit into the electric energy required to drive the motor, and capable of automatically switching between different working modes;

[0013] Intelligent control algorithm module, which integrates control programs based on big data analysis and machine learning algorithms, can monitor vehicle driving status, battery status and environmental parameters in real time, and dynamically adjust the working mode of the high-efficiency energy conversion module, optimize the control strategy of the motor, and manage the charging and discharging process of the energy storage unit accordingly;

[0014] The optimized energy storage and management system includes at least one battery pack as an energy storage unit and a battery management unit for monitoring the voltage, current, and temperature parameters of the battery pack and performing battery balancing control, thermal management, and overcharge and over-discharge protection functions.

[0015] Preferably, it also includes an inter-module communication bus for information transmission and coordinated control between the efficient energy conversion module, the intelligent control algorithm module and the optimized energy storage and management system.

[0016] Preferably, the optimized energy storage and management system also includes a fault diagnosis and early warning system, which can monitor the health status of the battery pack and its management unit in real time, and send out an early warning signal through the inter-module communication bus when a potential fault is found.

[0017] Preferably, the power management module includes voltage and current sensors for real-time monitoring of input and output power states, and dynamically adjusting power distribution according to load changes through an intelligent regulation algorithm, the expression of which is:

[0018]

[0019] Among them, P adjust is the power to be adjusted, R target is the target load, R is the current load, K p , K i and K d are the proportional, integral, and derivative gains.

[0020] Preferably, the conversion device includes a plurality of conversion units, and the conversion units adopt a load balancing algorithm, which is expressed as:

[0021]

[0022] Where N is the number of conversion units, L i The load for each unit.

[0023] Preferably, the optimized energy storage and management system is integrated with an energy recovery system to recover kinetic energy during vehicle braking and convert it into electrical energy for storage in a battery pack.

[0024] Preferably, the energy recovery system converts the kinetic energy generated during vehicle braking into electrical energy, and controls the recovery process through an optimization algorithm.

[0025] Preferably, the optimization algorithm expression adopted by the energy recovery system is:

[0026]

[0027] Where: E recover To recover energy, η recover is the recovery efficiency, m is the vehicle mass, v is the speed during braking, t is the braking time, is the air resistance, C d is the drag coefficient, ρ is the air density, A is the front area, F roll =C r m g is the rolling resistance, C r is the rolling resistance coefficient and g is the acceleration due to gravity.

[0028] Preferably, the inter-module communication bus adopts a unified communication protocol for data transmission to achieve real-time information sharing and coordinated operation, and the protocol includes CAN bus and Zigbee.

[0029] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0030] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0031] 1. The present invention can optimize the conversion efficiency of electric energy and reduce energy loss through the high-efficiency energy conversion module, thereby improving the overall performance. At the same time, the intelligent control algorithm monitors and adjusts system parameters in real time to optimize power output. In addition, the optimized energy storage and management system effectively monitors the battery status, prolongs the battery life, improves energy utilization, and reduces the risk of failure.

[0032] 2. The energy recovery system of the present invention can efficiently recover kinetic energy during braking and convert it into electrical energy, further improving the energy utilization rate of the system. The inter-module communication bus ensures the real-time collaboration of each module, ultimately improving energy efficiency and recovering energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2It is a schematic diagram of the connection structure of 01 and 02 of the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] Example 1

[0038] Reference Figure 1-2 , a power-driven accelerated conversion electric energy device, comprising:

[0039] a power drive unit configured to provide initial power and adjust its output to suit different driving modes through a control system;

[0040] a power management module configured to monitor and regulate power distribution in real time;

[0041] A conversion device configured to convert input power into required electrical energy;

[0042] control systems, configured to optimize overall system performance;

[0043] A high-efficiency energy conversion module, comprising at least one power electronic converter, for converting the electric energy stored in the energy storage unit into the electric energy required to drive the motor, and capable of automatically switching between different working modes;

[0044] Intelligent control algorithm module, which integrates control programs based on big data analysis and machine learning algorithms, can monitor vehicle driving status, battery status and environmental parameters in real time, and dynamically adjust the working mode of the high-efficiency energy conversion module, optimize the control strategy of the motor, and manage the charging and discharging process of the energy storage unit accordingly;

[0045] The optimized energy storage and management system includes at least one battery pack as an energy storage unit and a battery management unit for monitoring the voltage, current, and temperature parameters of the battery pack and performing battery balancing control, thermal management, and overcharge and over-discharge protection functions.

[0046] By integrating multiple high-efficiency energy conversion and management modules, the efficiency of power transmission is significantly improved, energy loss is reduced, more reliable power output is provided, various driving conditions are adapted, and the overall performance of the vehicle is optimized.

[0047] It also includes an inter-module communication bus for information transmission and coordinated control between efficient energy conversion modules, intelligent control algorithm modules and optimized energy storage and management systems.

[0048] The optimized energy storage and management system also includes a fault diagnosis and early warning system, which can monitor the health status of the battery pack and its management unit in real time, and send out early warning signals through the inter-module communication bus when potential faults are found. By monitoring the health status of the battery and its management unit in real time, the system can promptly detect potential faults and send out early warning signals, thereby reducing fault downtime and improving the safety and reliability of the system.

[0049] The power management module includes voltage and current sensors, which are used to monitor the input and output power status in real time, and dynamically adjust the power distribution according to the load changes through the intelligent regulation algorithm. The expression is:

[0050]

[0051] Among them, P adjust is the power to be adjusted, R target is the target load, R is the current load, K p , K i and K d For proportional, integral and differential gains, real-time monitoring of input and output power supply status and dynamic adjustment of power distribution can effectively optimize system energy efficiency, reduce energy loss and improve system adaptability. In the actual implementation process, K p , K i and K d The optimal values ​​of are 1.5, 0.1, and 0.05. Reasonable gain setting can ensure that the system stabilizes quickly when the load changes, reduce response delays, and improve control accuracy.

[0052] The conversion device includes multiple conversion units, and the conversion units use a load balancing algorithm, which is expressed as:

[0053]

[0054] Where N is the number of conversion units, L i The load for each unit;

[0055] The load balancing design ensures that each conversion unit operates in the best working state, avoids overload, and improves the overall stability and efficiency of the system. The maximum load is controlled below 70% of the rated value. By limiting the load of a single unit, the risk of failure can be effectively reduced, and the reliability and long-term stability of the system can be improved.

[0056] The inter-module communication bus uses a unified communication protocol for data transmission to achieve real-time information sharing and coordinated operations. The protocols include CAN bus and Zigbee. The unified communication protocol improves the data transmission efficiency between modules, enables various parts of the system to respond to changes more quickly, and enhances overall coordination.

[0057] Example 2

[0058] Embodiment 1 is further optimized, specifically, as Figure 1 As shown, an energy recovery system is integrated into the optimized energy storage and management system to recover kinetic energy during vehicle braking and convert it into electrical energy for storage in the battery pack.

[0059] The energy recovery system converts the kinetic energy generated during vehicle braking into electrical energy and controls the recovery process through an optimization algorithm.

[0060] The optimization algorithm expression used by the energy recovery system is:

[0061]

[0062] Where: E recover To recover energy, η recover is the recovery efficiency, m is the vehicle mass, v is the speed during braking, t is the braking time, is the air resistance, C d is the drag coefficient, ρ is the air density, A is the front area, F roll =C r m g is the rolling resistance, C r is the rolling resistance coefficient, g is the acceleration of gravity, the energy recovery function improves the overall energy utilization efficiency, reduces energy consumption, improves the economy of the system, and reduces dependence on external power supply, η recover The optimized value of is 0.75. The improved recovery efficiency ensures that as much energy as possible is recovered during braking and deceleration, reducing energy waste and improving overall economic benefits.

[0063] From the above, we can know that:

[0064] The present invention is directed to the technical problem that in recent years, many new types of power-driven accelerated conversion of electric energy devices have emerged. These devices have achieved comprehensive optimization of the power drive system and the electric energy management system by introducing technical means such as efficient energy conversion modules, intelligent control algorithm modules, and optimized energy storage and management systems. Among them, the efficient energy conversion module adopts advanced technologies such as multi-level inverters or matrix converters, which can automatically switch working modes under different working conditions to achieve efficient energy conversion; the intelligent control algorithm module uses advanced technologies such as big data analysis and machine learning algorithms to monitor the vehicle driving status, battery status and environmental parameters in real time, and adjust the working mode of the energy conversion module and the control strategy of the motor accordingly to optimize energy utilization efficiency; the optimized energy storage and management system integrates components such as battery management units and energy recovery systems to achieve accurate management and efficient utilization of battery packs. However, although these new types of power-driven accelerated conversion of electric energy devices have made significant technical progress, there are still some problems and challenges: the existing technology is not ideal for improving energy conversion efficiency and how to better protect the energy recovery battery pack, and there is a certain room for improvement; adopting the technical solutions of the above embodiments, through the above settings, this application will inevitably solve the above technical problems, and at the same time, achieve the following technical effects:

[0065] 1. The present invention can optimize the conversion efficiency of electric energy and reduce energy loss through the high-efficiency energy conversion module, thereby improving the overall performance. At the same time, the intelligent control algorithm monitors and adjusts system parameters in real time to optimize power output. In addition, the optimized energy storage and management system effectively monitors the battery status, prolongs the battery life, improves energy utilization, and reduces the risk of failure.

[0066] 2. The energy recovery system of the present invention can efficiently recover kinetic energy during braking and convert it into electrical energy, further improving the energy utilization rate of the system. The inter-module communication bus ensures the real-time collaboration of each module, ultimately improving energy efficiency and recovering energy.

[0067] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A power-driven accelerated conversion electric energy device, characterized in that: include: a power drive unit configured to provide initial power and adjust its output to suit different driving modes through a control system; a power management module configured to monitor and regulate power distribution in real time; A conversion device configured to convert input power into required electrical energy; control systems, configured to optimize overall system performance; A high-efficiency energy conversion module, comprising at least one power electronic converter, for converting the electric energy stored in the energy storage unit into the electric energy required to drive the motor, and capable of automatically switching between different working modes; Intelligent control algorithm module, which integrates control programs based on big data analysis and machine learning algorithms, can monitor vehicle driving status, battery status and environmental parameters in real time, and dynamically adjust the working mode of the high-efficiency energy conversion module, optimize the control strategy of the motor, and manage the charging and discharging process of the energy storage unit accordingly; The optimized energy storage and management system includes at least one battery pack as an energy storage unit and a battery management unit for monitoring the voltage, current, and temperature parameters of the battery pack and performing battery balancing control, thermal management, and overcharge and over-discharge protection functions.

2. The power-driven accelerated conversion electric energy device according to claim 1, characterized in that: It also includes an inter-module communication bus for information transmission and coordinated control between efficient energy conversion modules, intelligent control algorithm modules and optimized energy storage and management systems.

3. The power-driven accelerated conversion electric energy device according to claim 2, characterized in that: The optimized energy storage and management system also includes a fault diagnosis and early warning system that can monitor the health status of the battery pack and its management unit in real time, and send out an early warning signal through the inter-module communication bus when a potential fault is found.

4. The power-driven accelerated conversion electric energy device according to claim 1, characterized in that: The power management module includes voltage and current sensors for real-time monitoring of input and output power states, and dynamically adjusts power distribution according to load changes through an intelligent regulation algorithm, which is expressed as: Among them, P adjust is the power to be adjusted, R target is the target load, R is the current load, K p , K i and K d are the proportional, integral, and derivative gains.

5. The power-driven accelerated conversion electric energy device according to claim 1, characterized in that: The conversion device includes a plurality of conversion units, and the conversion unit adopts a load balancing algorithm, which is expressed as: Where N is the number of conversion units, L i The load for each unit.

6. The power-driven accelerated conversion electric energy device according to claim 1, characterized in that: The optimized energy storage and management system is integrated with an energy recovery system, which recovers kinetic energy during vehicle braking and converts it into electrical energy and stores it in a battery pack.

7. The power-driven accelerated conversion electric energy device according to claim 6, characterized in that: The energy recovery system converts the kinetic energy generated during vehicle braking into electrical energy and controls the recovery process through an optimization algorithm.

8. The power-driven accelerated conversion electric energy device according to claim 6, characterized in that: The optimization algorithm expression used by the energy recovery system is: Where: E recover To recover energy, η recover is the recovery efficiency, m is the vehicle mass, v is the speed during braking, t is the braking time, is the air resistance, C d is the drag coefficient, ρ is the air density, A is the front area, F roll =C r @m·g is rolling resistance, C r is the rolling resistance coefficient and g is the acceleration due to gravity.

9. The power-driven accelerated conversion electric energy device according to claim 2, characterized in that: The inter-module communication bus adopts a unified communication protocol for data transmission to achieve real-time information sharing and coordinated operation, and the protocol includes CAN bus and Zigbee.

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