Energy management device and method based on multi-source energy recovery

Abstract

The invention discloses an energy management device and method based on multi-source energy recovery. The device comprises an energy collection module, an energy conversion module, an energy storage and scheduling module, a temperature monitoring and thermal protection module, a control and communication module and a display and feedback module. The energy collection module is used for collecting available energy in the environment and converting different forms of energy into electric energy; the energy conversion module is used for optimizing the electric energy of different energy sources; the energy storage and scheduling module is used for storing the recycled electric energy and adjusting the energy state according to an external load; the temperature monitoring and thermal protection module is used for monitoring the temperature of the device in real time and reducing the output power when the temperature exceeds a safety threshold value; the control and communication module is used for optimizing the running state of the device and providing remote monitoring and diagnosis; and the display and feedback module is used for giving an alarm when the device is abnormal.

Description

Technical Field

[0001] The present invention relates to the field of energy recovery, and particularly to an energy management device and method based on multi-source energy recovery. Background Art

[0002] At present, the technology of using natural energy for water resource transportation has been gradually widely applied. Natural energy water lifting devices, with their characteristics of no need for electricity and fuel, low cost, and high efficiency, have become an ideal choice for solving the water resource supply problems in remote areas and mountainous areas. Especially in mountainous areas with a certain water flow drop, the natural power of the water flow can effectively drive the water pump device to lift water from a low place to a high place to meet people's daily water use needs. However, although most current natural energy water lifting devices can lift water through the gravity and kinetic energy of the water flow, the excess energy generated in this process has not been effectively recovered and utilized. On the one hand, this energy wastes the potential of the device; on the other hand, during the operation of the device, it may lead to an increase in equipment wear and energy consumption, reducing the economic and environmental benefits of the entire device.

[0003] Most existing natural energy water lifting devices are not equipped with sufficient intelligent management and control functions, resulting in low energy use efficiency. For example, the device lacks real-time monitoring and data analysis capabilities and cannot adjust the operation strategy according to environmental changes and equipment status. Therefore, how to efficiently recover and utilize the excess energy in the device and improve the adaptive adjustment ability of the device has become a bottleneck in the current technological development. Summary of the Invention

[0004] In order to overcome the problems of insufficient energy recovery and low operation efficiency in existing natural energy water lifting devices, the present invention provides an energy management device and method based on multi-source energy recovery by introducing an innovative energy recovery mechanism and intelligent adjustment technology, which can not only improve the energy utilization efficiency of the device but also enable it to operate efficiently and stably under complex environmental conditions.

[0005] To achieve the above object, the present invention provides an energy management device based on multi-source energy recovery, which is characterized by including: an energy collection module, an energy conversion module, an energy storage and scheduling module, a temperature monitoring and thermal protection module, a control and communication module, and a display and feedback module;

[0006] The energy collection module is used to collect the available energy in the environment and convert different forms of energy into electric energy;

[0007] The energy conversion module is used to optimize the electric energy from different energy sources;

[0008] The energy storage and scheduling module is used to store the recovered electric energy and adjust the energy state according to the external load;

[0009] The temperature monitoring and thermal protection module is used to monitor the device temperature in real time and reduce the output power when the temperature exceeds the safety threshold;

[0010] The control and communication module is used to optimize the operating state of the device and provide remote monitoring and diagnosis;

[0011] The display and feedback module is used to issue an alarm when the device has an abnormality.

[0012] Preferably, the energy harvesting module includes: a water flow energy recovery device, a vibration energy recovery device, and a thermoelectric energy recovery device; the energy harvesting module converts different forms of energy into electrical energy by using the kinetic energy of water flow, the vibration energy during device operation, and the temperature difference on the device surface respectively.

[0013] Preferably, the energy conversion module includes: a power regulation unit, a power optimization strategy unit, and a power conversion unit; the energy conversion module ensures that the electrical energy from different sources is stably adapted to the load demand by adjusting the output current in real time, while increasing the voltage level to meet the energy storage and power supply requirements, and optimizing the energy conversion efficiency.

[0014] Preferably, the energy storage and scheduling module includes: an energy storage unit and an intelligent scheduling unit;

[0015] The energy storage unit is used to store the recovered electrical energy;

[0016] The intelligent scheduling device is used to adjust the energy state according to the actual demand of the external load.

[0017] Preferably, the display and feedback module is used to provide a graphical interface to display the device operating state, energy utilization situation, and key parameters in real time; when the device has a fault, overload, or temperature abnormality, it notifies the user in time through the alarm function to ensure the safety and operability of the device.

[0018] The present invention also provides an energy management method based on multi-source energy recovery, which is applied to the above-mentioned device, and the steps include:

[0019] S1. Collect different types of energy sources in the environment and convert them into electrical energy;

[0020] S2. Adjust the output current and track the maximum power point to optimize different types of energy sources;

[0021] S3. Store the excess recovered electrical energy and release or adjust the electrical energy according to the external load demand.

[0022] Preferably, set a safety temperature threshold and adjust the energy state according to the actual demand of the external load; when the temperature exceeds the safety threshold, reduce the output power.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] Compared with the traditional technology with a single energy source, the present invention realizes multiple energy recoveries of the system by simultaneously recovering the kinetic energy of water flow, vibration energy, pressure difference energy, and waste heat energy, greatly improving the energy utilization efficiency. At the same time, through the intelligent control system and real-time monitoring, dynamic optimization and adjustment can be carried out on each energy recovery module to ensure the stability and reliability of the system under various operating conditions, and to avoid the influence of overheating or power fluctuations on the system. In addition, the present invention also reduces the dependence on external power sources and lowers energy consumption through an effective energy recovery and storage mechanism, conforming to the concept of green environmental protection and contributing to energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic diagram of the device structure of an embodiment of the present invention;

[0027] Figure 2 It is a system framework diagram of an embodiment of the present invention;

[0028] Figure 3 It is a flowchart of the energy management method for multi-source energy recovery of an embodiment of the present invention;

[0029] Figure 4 It is a flowchart of the power optimization strategy algorithm of an embodiment of the present invention;

[0030] Figure 5 It is a flowchart of the energy storage and allocation algorithm of an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0033] Embodiment 1

[0034] As Figure 1 shown in the figure, it is a schematic structural diagram of the device in this embodiment, including: an energy collection module, an energy conversion module, an energy storage and scheduling module, a temperature monitoring and thermal protection module, a control and communication module, and a display and feedback module; the energy collection module is used to collect available energy in the environment and convert different forms of energy into electrical energy; the energy conversion module is used to optimize the electrical energy from different energy sources; the energy storage and scheduling module is used to store the recovered electrical energy and adjust the energy state according to external loads; the temperature monitoring and thermal protection module is used to monitor the device temperature in real time and reduce the output power when the temperature exceeds the safety threshold; the control and communication module is used to optimize the operating state of the device and provide remote monitoring and diagnosis; the display and feedback module is used to issue an alarm when an abnormality occurs in the device.

[0035] Next, this embodiment will be combined to detail how the present invention solves technical problems in real life.

[0036] The energy collection module includes a water flow energy recovery device, a vibration energy recovery device, a thermoelectric energy recovery device, etc. Among them, the water flow energy recovery device uses the kinetic energy of the water flow to be converted into electrical energy through a water turbine power generation device. The water turbine power generation device is installed in the pipeline or water channel through which the water flow passes and can effectively recover the kinetic energy of the flowing water; the vibration energy recovery device uses piezoelectric elements or vibration energy conversion modules to recover the vibration energy generated during the operation of the equipment and convert it into electrical energy. This device is usually installed near the vibration source of the equipment, such as a water pump or other mechanical components; the thermoelectric energy recovery device collects the temperature difference at the water pump bearing, the surface of the equipment, etc. through a thermoelectric module and converts the thermal energy into electrical energy. The thermoelectric module works through the thermoelectric effect. When there is a temperature difference at both ends, the generated voltage can be used for power supply or storage.

[0037] The energy conversion module includes a power regulation unit, a power optimization strategy module, a power conversion module, etc. Among them, the power regulation unit is responsible for adjusting the current according to the output of different energy sources to ensure that the recovered electrical energy can be stable and adapt to the needs of different loads. This unit adjusts the output of the thermoelectric module or piezoelectric element by controlling the magnitude of the current. The power optimization strategy module, according to the output characteristics of the thermoelectric module, tracks its maximum power point in real time to ensure that the thermoelectric module always operates at the optimal power output state when the temperature difference changes. This module adopts a feedforward control method to optimize the energy conversion efficiency. The power conversion module is used to boost the recovered electrical energy with a low voltage to a voltage level suitable for storage or power supply. The power conversion module plays an important voltage conversion role between the energy recovery module and the energy storage system to ensure that the electrical energy can be stably stored or used for external power supply.

[0038] The energy storage and scheduling module includes an energy storage unit, an energy scheduling system, etc. Among them, the energy storage unit is used to store the recovered electric energy to ensure that additional power support can be provided when the external load demand is greater than the recovered electric energy. Common energy storage devices include lithium batteries, supercapacitors, etc. The energy scheduling system intelligently adjusts the electric energy output of the energy storage unit according to the demand of the external load. When the external load demand exceeds the energy recovery, the stored electric energy will be released to ensure the stable operation of the system; when the recovered electric energy is more than the load demand, the scheduling system will store the excess energy.

[0039] The temperature monitoring and thermal protection module includes a temperature sensor, a thermal protection mechanism, etc. Among them, the temperature sensor is responsible for real-time monitoring of the temperatures of key components in the system (such as the water pump bearing, the thermoelectric module, etc.), especially the temperature of the water pump bearing, to prevent equipment damage due to overheating. During the normal operation of the equipment, once the temperature in the system exceeds the preset safety threshold, the thermal protection system will be automatically activated to adjust the power output of the water pump and avoid equipment damage caused by overheating. At the same time, the system will reduce the power output to a safe value and resume full-power operation when the temperature returns to the normal level.

[0040] The control and communication module includes a central control unit, a communication interface, etc. Among them, the central control unit is responsible for coordinating the work of each module, receiving and processing data from various sensors (such as temperature sensors, power sensors, etc.) in real time, and sending control instructions to each execution module after analysis. This unit realizes the global optimization management of the system to ensure the efficient recovery and utilization of multi-source energy. The internal modules of the system exchange data and transmit information through a communication interface (such as CAN bus, Wi-Fi or Bluetooth). This interface ensures the coordinated cooperation between modules and can also transmit the operating status data to an external monitoring system for remote control and diagnosis.

[0041] The display and feedback module includes a user interface (UI), an alarm system, etc. Among them, the user interface provides a graphical user interface to display key parameters such as the system operation status, energy collection and usage, temperature, and power in real time, facilitating users to monitor and adjust. The system has a built-in alarm function. When abnormal situations such as faults, overheating, and overload occur, the alarm system will notify users or operators in a timely manner to ensure the safety of the system.

[0042] Optionally, a kind of energy management system based on multi-source energy recovery will be introduced in detail in Example 2.

[0043] Example 2

[0044] Please refer to the Figure 2 System framework diagram provided for Example 2, an energy management system based on multi-source energy recovery. The system includes: data acquisition and monitoring, intelligent decision-making and optimization, energy storage and allocation, power output optimization method.

[0045] The data acquisition and monitoring system is one of the core modules of the energy management system. It is responsible for real-time monitoring and collecting the working status and operating parameters of each component, and then transmitting this data to the central control unit for analysis and decision-making. This system ensures a comprehensive understanding of the overall performance, status, and anomalies of the energy management system, providing data support for subsequent intelligent decision-making and optimization. The system mainly realizes functions such as real-time data acquisition, remote monitoring, anomaly detection and warning, and data recording and analysis. Through sensors, collectors, and intelligent interfaces, the system monitors the key parameters of each module in real time, including temperature, humidity, vibration, power, power recovery, voltage, current, and energy storage status. In addition, the system also transmits the monitoring data to a remote server or cloud platform through wireless communication technology, and users can access and monitor the device status at any time for remote fault diagnosis and maintenance. The system can automatically identify device anomalies and timely remind users through an alarm system to avoid device damage. When the parameters exceed the safety threshold, the system will automatically issue an alarm and activate protection measures. All the collected data will be stored locally or in the cloud for convenient historical data analysis and performance evaluation.

[0046] The intelligent decision-making and optimization system is the "brain" of the energy management system. By analyzing the collected data, combining advanced algorithms and intelligent control strategies, it optimizes the energy recovery, conversion, and storage processes, thereby improving the overall efficiency and stability of the system. The system mainly realizes functions such as intelligent scheduling and optimization, energy distribution optimization strategy, fault prediction and repair, and adaptive control. The intelligent decision-making system uses a variety of optimization algorithms to automatically adjust the energy distribution and storage according to the external load demand and real-time recovered electric energy to ensure the maximization and continuous stability of power supply. At the same time, the system can dynamically adjust the power output according to real-time data and optimize the energy transmission between the energy storage and the load. During peak load periods, the system will adjust the output of the energy storage module or increase the external power supply to avoid power shortages; while during low load periods, the system will adjust the energy storage module to charge to avoid energy waste. By analyzing the continuously monitored data, the system can predict possible faults and give early warnings, and take repair measures in a timely manner. For example, when overheating or insufficient battery power occurs, the system will automatically adjust the power output or temperature control strategy to prevent damage. The system can adjust the control strategy in real time according to different working environments, load demands, and changes in recovered energy to ensure the efficient and stable operation of the system under various conditions.

[0047] The energy storage and distribution system is responsible for managing the recycled energy and storing or distributing it according to demand to ensure efficient energy utilization of the system in different states. Through intelligent scheduling and optimized storage strategies, the system allocates the stored electric energy in advance according to current and future demands to ensure continuous power supply to external loads. The system mainly realizes functions such as electric energy storage, energy distribution and release, energy storage device management, and electric energy balance control. When the demand of the external load is less than the energy recycled by the system, the storage module stores the excess energy; when the demand is greater than the recycled electric energy, the energy storage device provides electric energy support. The system can also intelligently allocate the stored electric energy according to the demand of the external load. For example, during peak electricity consumption periods, the system will preferentially release the stored electric energy to meet the demand; during low-demand periods, the system will store the excess energy for future demands. The energy storage device is monitored through intelligent management algorithms to ensure that the device operates in a safe and efficient state. Through strategies such as temperature control and charging cycle management, overcharging, over-discharging, or overheating of the battery is avoided, thereby extending the service life of the battery. In addition, the system also ensures that the load does not experience a shortage of electric energy by balancing the supply and demand relationship in real time, thereby improving the stability and energy efficiency of the system.

[0048] The power output optimization method system is a key technology to ensure that the energy conversion module can optimize the power output in real time. Through the power optimization strategy algorithm, the system can adjust the operating point according to environmental changes so that it always operates under the optimal power output conditions, thereby maximizing the recycled electric energy. The system mainly realizes functions such as power output optimization algorithms, dynamic adjustment of power output, fast response, and improvement of conversion efficiency. By adopting an advanced power optimization strategy algorithm, the system real-time detects the voltage and current of the recycling module, calculates the maximum power point, and adjusts the operating state to improve the energy recovery efficiency. The system can automatically adjust the power output according to environmental changes such as light intensity and temperature difference to ensure that the maximum energy can always be extracted from the environment. The power optimization strategy system has the ability to quickly respond to changes in the external environment and can quickly adjust to maintain the optimal power output. This technology significantly improves the efficiency of the energy conversion module, reduces energy losses, and enhances the energy efficiency and stability of the entire system.

[0049] Optionally, an energy management method based on multi-source energy recovery will be introduced in detail in Example 3.

[0050] Example 3

[0051] Please refer to the appendix Figure 3 The flowchart of the energy management method for multi-source energy recovery provided for Example 3, the appendix Figure 4 The flowchart of the power optimization strategy algorithm provided for Example 3 and the appendix Figure 5 The flowchart of the energy storage and distribution algorithm provided for Example 3.

[0052] S1. Collect different types of energy sources in the environment and convert them into electrical energy;

[0053] S2. Adjust the output current and track the maximum power point to optimize different types of energy sources;

[0054] S3. Store the excess recycled electrical energy and release or adjust the electrical energy according to the external load demand.

[0055] Furthermore, S1 includes the following steps:

[0056] S1-1: Integrate multiple energy recovery sources such as water flow, vibration, and temperature difference in the system simultaneously.

[0057] Furthermore, the image processing in S1-1 includes the following steps:

[0058] S1-1-1: The water flow energy recovery recovers the kinetic energy in the flowing water through a water turbine power generation device and converts it into electrical energy. The power formula of the water turbine power generation device is:

[0059]

[0060] where, P 水轮 is the power of the water turbine power generation device, ρ is the density of water, A is the area of the cross-section through which the water flow passes, and v is the velocity of the water flow.

[0061] S1-1-2: The vibration energy recovery recovers the vibration energy generated during the operation of the device through a piezoelectric device and converts it into electrical energy. The power formula of the piezoelectric vibration energy recovery device is:

[0062]

[0063] where, P 压电 is the power of the piezoelectric device, C is the capacitance of the piezoelectric element, and V is the voltage caused by the vibration.

[0064] S1-1-3: The thermoelectric energy recovery uses a temperature difference energy conversion module to utilize the temperature difference generated by components such as the water pump bearing to convert heat energy into electrical energy. During the energy recovery process of the temperature difference energy conversion module, the thermoelectric effect formula is used to calculate the output power of the thermoelectric module. The power formula of the temperature difference energy conversion module is:

[0065]

[0066] where: P is the output power of the thermoelectric module, is the heat flow of the heat source, is the heat flow of the cold end.

[0067] S1-2: Use a temperature sensor to monitor the temperature difference between the hot end and the cold end in real time. When the temperature difference exceeds the set threshold, the thermoelectric energy conversion module will start working to generate electrical energy. The relationship between the open-circuit voltage and the temperature difference is:

[0068] V oc = S(T H - T c )

[0069] where, V oc is the open-circuit voltage, S is the coefficient, T H and T c are the temperatures of the hot end and the cold end respectively.

[0070] Furthermore, S2 includes the following steps:

[0071] S2-1: The current generated by the thermoelectric module is proportional to the temperature difference, and the magnitude of the current can be adjusted according to different temperature differences. By monitoring the temperature sensor data in real time, the output current of the thermoelectric module is adjusted to maximize energy recovery.

[0072] S2-2: Adopt a feed-forward control strategy to predict the temperature change, estimate the optimal operating point based on the current temperature difference, and ensure that the thermoelectric module always operates at the maximum power output point, thereby improving the energy recovery efficiency. The temperature difference formula under open-circuit conditions is:

[0073]

[0074] where, T s is the heat source temperature, T ∞ is the ambient air temperature, Kψ H and Kψ C are the thermal resistances of the hot end and the cold end.

[0075] The relationship formula between the open-circuit voltage and the temperature difference is:

[0076]

[0077] where, V OC is the open-circuit voltage, S is the coefficient, Kψ H and Kψ C are the thermal resistances of the hot end and the cold end respectively.

[0078] Furthermore, S3 includes the following steps:

[0079] S3-1: When the electrical energy generated by the thermoelectric module and other energy harvesting devices exceeds the demand of the external load, the electrical energy will be stored in a battery or a supercapacitor through a power conversion module for subsequent use.

[0080] S3-2: When the demand of the external load of the system exceeds the internally generated energy, the stored electrical energy will be released into the system to support the continuous operation of the external load.

[0081] Further, S3-2 includes the following steps:

[0082] S3-2-1: Regulate the output voltage through a voltage regulator to meet the voltage required by the external system.

[0083] S3-2-2: When the load demand is low, feedback the excess energy to the power grid or other devices by controlling the energy storage module. The formula is:

[0084]

[0085] Where, V out is the output voltage, V in is the input voltage, I load is the load current, I storage is the storage current.

[0086] In addition, the method of this embodiment further includes step S4, setting a safety temperature threshold and adjusting the energy state according to the actual demand of the external load; when the temperature exceeds the safety threshold, reduce the output power.

[0087] Further, S4 includes the following steps:

[0088] S4-1: Set the temperature safety threshold c2 of the water pump bearing. When the temperature exceeds this threshold, the system will start thermal protection measures to prevent bearing damage by reducing the maximum power of the water pump (T max ). At this time, the power output of the system will be adjusted until the temperature returns to the safe value, and the power returns to the normal state. The formula is:

[0089] T max = f(T max，safe )

[0090] Where, T max is the adjusted maximum power, T max，safe is the power at the safety threshold.

[0091] S4-2: During the power control process of the water pump, perform dynamic power adjustment according to the current temperature and energy demand through a feedback optimization strategy. During the adjustment process, the controller optimizes the response time through a delay link to avoid excessive fluctuations. The formula is:

[0092]

[0093] Where, is the actual power output, T ijThe power obtained by optimizing and solving for the controller, τ m is the system response delay time.

[0094] This embodiment further includes step S5: Real-time monitor the status of each energy recovery module, and optimize the energy collection and utilization efficiency through intelligent control.

[0095] Further, S5 includes the following steps:

[0096] S5-1: Real-time monitor the operating status of each energy recovery module (such as water flow rate, vibration intensity, temperature difference, etc.) through the sensors in the system, and feedback the data to the central processing unit for analysis.

[0097] S5-2: According to the feedback data of the system, adopt an adaptive control algorithm to optimize and adjust each energy recovery device, making the entire energy recovery process more efficient and maximizing the energy utilization rate.

[0098] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An energy management device based on multi-source energy recovery, characterized in that, Including: An energy harvesting module, an energy conversion module, an energy storage and scheduling module, a temperature monitoring and thermal protection module, a control and communication module, and a display and feedback module; The energy harvesting module is used to collect available energy in the environment and convert different forms of energy into electrical energy; The energy conversion module is used to optimize the electrical energy from different energy sources; The energy storage and scheduling module is used to store the recovered electrical energy and adjust the energy state according to the external load; The temperature monitoring and thermal protection module is used to monitor the device temperature in real time and reduce the output power when the temperature exceeds the safety threshold; The control and communication module is used to optimize the operating state of the device and provide remote monitoring and diagnosis; The display and feedback module is used to issue an alarm when an abnormality occurs in the device.

2. The energy management device based on multi-source energy recovery according to claim 1, wherein The energy harvesting module includes: a water flow energy recovery device, a vibration energy recovery device, and a thermoelectric energy recovery device; the energy harvesting module converts different forms of energy into electrical energy by using the kinetic energy of water flow, the vibration energy during device operation, and the temperature difference on the device surface respectively.

3. The energy management device based on multi-source energy recovery according to claim 1, wherein The energy conversion module includes: a power regulation unit, a power optimization strategy unit, and a power conversion unit; the energy conversion module ensures the stable adaptation of the electrical energy from different sources to the load demand by adjusting the output current in real time, while increasing the voltage level to meet the energy storage and power supply requirements and optimizing the energy conversion efficiency.

4. The energy management device based on multi-source energy recovery according to claim 1, wherein The energy storage and scheduling module includes: an energy storage unit and an intelligent scheduling unit; The energy storage unit is used to store the recovered electrical energy; The intelligent scheduling device is used to adjust the energy state according to the actual demand of the external load.

5. The energy management device based on multi-source energy recovery according to claim 1, characterized in that The display and feedback module is used to provide a graphical interface to display the device operating state, energy utilization situation, and key parameters in real time; when a fault, overload, or temperature abnormality occurs in the device, it notifies the user in time through the alarm function to ensure the safety and operability of the device.

6. An energy management method based on multi-source energy recovery, the method is applied to the device according to any one of claims 1-5, and is characterized in that the steps Including: S1. Collect different types of energy sources in the environment and convert them into electrical energy; S2. Adjust the output current and track the maximum power point to optimize different types of energy sources; S3. Store the excess recovered electrical energy and release or adjust the electrical energy according to the external load demand.

7. The energy management method based on multi-source energy recovery according to claim 6, characterized in that By setting a safety temperature threshold and adjusting the energy state according to the actual demand of the external load; When the temperature exceeds the safety threshold, reduce the output power.

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