Integrated charging method, system and equipment based on methanol fuel power generation

Abstract

The invention discloses an integrated charging method, system and equipment based on methanol fuel power generation, and belongs to the technical field of new energy automobile charging facilities. According to the scheme, the control system, the fuel storage and supply module, the methanol power generation module, the energy storage buffer module, the 40KW direct current quick charging module, the energy management unit, the mute box body and the like are highly integrated, so that the emergency quick charging service independent of a power grid is realized. The core innovation lies in that the energy management unit is adopted to dynamically coordinate power generation and charging requirements, comprehensive mute design and comprehensive safety protection are combined, and the problems that an existing fast charging station depends on a power grid, a traditional standby power supply is large in noise and high in pollution, hydrogen fuel facility cost is high, and the system integration degree is low are solved. The system has the advantages of being clean, efficient, low in noise and rapid in deployment, and the electric vehicle charging requirements of remote areas, weak power grid areas and emergency scenes can be met.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicle charging facilities technology, specifically relating to an integrated charging method, system and equipment based on methanol fuel power generation. Background Technology

[0002] With the increasing popularity of electric vehicles, the construction of charging infrastructure has become a key factor restricting the industry's development. Currently, electric vehicle charging mainly relies on fixed charging stations, which are typically connected to the power grid to provide electricity to electric vehicles. However, in remote areas, regions with weak power grids, or emergency scenarios requiring rapid deployment, traditional charging infrastructure faces numerous challenges.

[0003] In the existing technology, some solutions have attempted to address the charging problem of electric vehicles in special scenarios. For example, CN112776624A discloses a vehicle-to-vehicle charging system, method, and electric vehicle. This system includes an energy module, a voltage conversion module, and a charging connection module. The vehicle-to-vehicle charging system provides convenient charging for vehicles, freeing them from the limitation of fixed charging stations. While this method offers convenience in locations with few fixed charging stations, it still relies on the battery power of the vehicle itself and cannot meet the needs of long-term, high-power charging.

[0004] Regarding alternative energy sources, WO2020151442A1 discloses a method, system, equipment, and storage medium for charging a methanol reforming fuel cell. This system obtains hydrogen through methanol reforming, then uses the hydrogen fuel cell stack to generate electricity, which powers the buffer battery pack and charger. This solution utilizes methanol as an energy carrier, offering some portability and flexibility. However, the methanol reforming process is complex, and the system response speed is slow, making it difficult to meet the demands of fast charging.

[0005] CN110723020A proposes a fuel cell power generation, energy storage, and charging system and method. This system includes a fuel cell, a battery system, and an energy management platform, integrating power generation, energy storage, and charging to reduce the load on the national power grid. However, this system is primarily based on hydrogen fuel cell technology and faces challenges in hydrogen production, storage, and transportation. The high cost of infrastructure construction makes large-scale deployment difficult in the short term.

[0006] CN112572199A describes a smart charging pile system and charging method based on the cascade utilization of batteries. The system includes a power generation system, an energy storage subsystem, a charging subsystem, and a control subsystem, wherein the power generation system adopts SOFC (solid oxide fuel cell) technology. Although this solution achieves efficient energy utilization, the system has high complexity and long start-up time, making it difficult to meet the rapid deployment requirements in emergency scenarios.

[0007] CN110901427B discloses a charging method and system. The system includes at least one energy source, each comprising a power generation module and an energy storage module. By controlling the start / stop of the power generation module and the charging / discharging of the energy storage module, efficient charging of the load to be charged is achieved. This solution provides an energy management approach, but it is not optimized for specific energy types and still faces many challenges in practical applications.

[0008] Existing technologies suffer from the following problems: First, traditional fast-charging stations heavily rely on power grid infrastructure, making them difficult to deploy in areas with insufficient grid coverage. Second, while diesel / gasoline generator sets, used as backup power, can provide emergency power, they suffer from high noise levels, high pollutant emissions, and low power generation efficiency, failing to meet environmental protection requirements. Third, although hydrogen fuel cell charging stations are clean and environmentally friendly, they face challenges such as high hydrogen production costs, difficulties in storage and transportation, and large investments in infrastructure construction. Fourth, existing technologies lack mature solutions for efficiently, quietly, and reliably integrating methanol power generation systems with electric vehicle fast-charging modules. Finally, existing charging station systems have low integration levels, with noise control, thermal management, and safety protection often added later, resulting in poor performance and increased costs, failing to meet the needs for rapid deployment and independent operation in emergency scenarios.

[0009] Especially in the application of methanol fuel, existing technologies mainly focus on the route of methanol reforming to produce hydrogen and then generating electricity through fuel cells. This system is complex and has a slow response speed. However, integrated solutions that directly utilize methanol internal combustion engine power generation and energy storage systems to provide fast charging for electric vehicles have not been fully researched and applied. At the same time, existing systems lack integration in areas such as safety monitoring, noise control, and energy management, making it difficult to meet the requirements of modular design and rapid deployment. Summary of the Invention

[0010] To address the technical challenges of existing fast charging stations relying on the power grid, the pollution and efficiency issues of backup power sources, the cost and infrastructure challenges faced by hydrogen fuel cell charging stations, the lack of efficient integration solutions between methanol power generation systems and electric vehicle fast charging modules, and the low integration level of existing charging station systems, this invention provides an integrated charging system and method based on methanol fuel power generation to achieve the technical effects of independent operation from the power grid, clean and efficient power generation, low-noise operation, rapid deployment, high safety, and flexible expansion.

[0011] An integrated charging method for methanol fuel power generation, characterized by comprising: Step 1: After the electric vehicle connects to the fast charging module, the control system establishes communication with the vehicle's BMS to obtain the charging power requirement; Step 2: The energy management unit calculates the required power and starts or adjusts the methanol power generation module to match the output, while activating the energy storage buffer unit to enter the charging state; Step 3: The energy management unit dynamically adjusts the output power of the methanol power generation module and the charging and discharging amount of the energy storage buffer unit based on the power demand updated in real time by the vehicle's BMS. Step 4: After the vehicle finishes charging, the control system disconnects the fast charging connection, and the energy management unit controls the methanol power generation module to gradually reduce its power to standby mode or shut down.

[0012] A further technical solution of the present invention is: during the charging process, methanol leakage, fire risk, electrical faults and toxic gas concentration are monitored throughout the process. When the alarm threshold is triggered, corresponding safety measures are immediately activated (such as cutting off the fuel supply, activating the fire extinguishing device, stopping the charging, etc.) and alarm information is sent through remote communication.

[0013] A further technical solution of the present invention is: when the methanol concentration is ≥500ppm, the safety shut-off valve of the oil supply system is triggered to close within 1 second and link with the ventilation system.

[0014] A further technical solution of the present invention is: step 2 specifically includes: Step 2.1: Based on the power prediction model of the vehicle BMS request (prediction error ≤ ±5%), dynamically adjust the generator set output power 0.5 seconds in advance to avoid no-load or inefficient operation; Step 2.2: Manage the distribution of DC power (rectified internal combustion engine power output) to the fast charging module, with a conversion efficiency ≥92%; Step 2.3: Control the 5-10kWh energy storage buffer unit (preferably a lithium iron phosphate battery with a capacity retention rate of ≥80% at -20℃) to release supplementary power within 0.1 seconds when the vehicle's power demand suddenly increases by more than 10%, thus smoothing out the power generation delay.

[0015] An integrated charging system based on methanol fuel power generation includes a control system, and a fuel storage and supply module, a methanol power generation module, an energy storage buffer module, a fast charging module, and an energy management unit, all connected to the control system. The fuel storage module stores methanol fuel and transports it to the methanol power generation module via oil pipes. The methanol power generation module is used to convert the chemical energy of methanol into electrical energy; The energy storage buffer module is used for energy storage and discharge. The fast charging module is used to connect to the charging vehicle; The control system is used to obtain the charging power request from the vehicle's BMS. The energy management unit receives charging commands from the control system, calculates the required charging power, and starts or adjusts the methanol power generation module to match the output. At the same time, it activates the energy storage buffer unit to charge and discharge, and manages the distribution of DC power generated by the power generation to the fast charging module.

[0016] The control system, along with the fuel storage and supply module, methanol power generation module, energy storage buffer module, fast charging module, and energy management unit connected to the control system, are highly integrated within a unified frame or container structure, enabling modular design and rapid deployment. The frame or container structure has two variants: a mobile type (installed on a trailer chassis, including driving fixation, shock absorption, and center of gravity design) and a fixed type (fixed to a foundation).

[0017] A further technical solution of the present invention is: it also includes a safety monitoring and alarm module, including: a methanol leak monitoring device, a fire risk monitoring device, an electrical fault monitoring device, and a toxic gas concentration monitoring device, which monitors methanol leaks, fire risks, electrical faults, and toxic gas concentrations throughout the process. When an alarm threshold is triggered, it immediately activates corresponding safety measures (such as cutting off fuel supply, activating fire extinguishing devices, stopping charging, etc.) and sends alarm information through remote communication.

[0018] Methanol Leakage Monitoring: Eight electrochemical sensors (detection range 0-1000ppm, accuracy ±5%FS) are deployed in the fuel tank area, pipeline interfaces, and near the generator set. When the concentration is ≥500ppm, the fuel supply is cut off and the explosion-proof fan (air volume ≥1000m³ / h) is activated, and the concentration drops to a safe level within 30 seconds. Fire protection: Temperature sensor (measurement range -40-125℃) + photoelectric smoke detector, linked to fine water mist fire extinguishing device (response time ≤3 seconds); Electrical safety: Overvoltage (≥110% of rated voltage), overcurrent (≥120% of rated current), short circuit, and leakage current (residual current ≥30mA) protection, with an operating time of ≤0.1 seconds; A further technical solution of the present invention is as follows: the methanol power generation module is installed in an ultra-quiet enclosure, and the inner wall of the ultra-quiet enclosure is provided with a multi-layer sound insulation and sound absorption structure (including a damping layer, sound-absorbing cotton, and perforated plate). The multi-layer sound insulation and sound absorption structure includes an outer layer of 1.5mm galvanized steel plate + a middle layer of 50mm centrifugal glass wool (density 48kg / m³) + an inner layer of perforated aluminum plate (perforation rate 25%). The ultra-quiet enclosure is also provided with an air inlet and outlet, and a silencer is provided at the air inlet and outlet to achieve a system operating noise of ≤65dB(A)@1 meter.

[0019] A further technical solution of the present invention is: the methanol power generation module is a methanol internal combustion generator set, the bottom of the methanol internal combustion generator set is fixed inside the ultra-quiet box through the base, and four natural rubber vibration isolators (damping coefficient 0.25, compression amount 5-8mm) are provided between the methanol internal combustion generator set and the base.

[0020] An integrated charging device for methanol fuel power generation includes: processor; A memory in which executable instructions of the processor are stored; The processor is configured to execute the steps of the integrated charging method based on methanol fuel power generation by executing the executable instructions.

[0021] A computer-readable storage medium for storing a program, which, when executed, implements the steps of the integrated charging method based on methanol fuel power generation.

[0022] The beneficial effects of this invention are as follows: 1. Grid Independent: This invention generates electricity on-site using methanol, completely eliminating dependence on the power grid. It can be flexibly applied in remote areas, areas with weak power grids, or emergency scenarios requiring rapid deployment, solving the problem of traditional fast-charging stations being limited by the power grid. Compared with existing technologies, this system can operate independently in areas without power grid coverage, and deployment time is reduced to within one hour.

[0023] 2. Clean and efficient: Using methanol as fuel, pollutant emissions are significantly reduced compared to traditional diesel / gasoline generator sets, especially particulate matter emissions are reduced by about 80% and NOx emissions by about 60%. At the same time, through engine design optimized for methanol characteristics and the application of high-efficiency permanent magnet synchronous generators, the system power generation efficiency reaches more than 32%, which is higher than the 25-28% efficiency level of traditional diesel generator sets.

[0024] 3. Low noise operation: Through comprehensive noise reduction measures such as the three-layer composite structure of the ultra-quiet enclosure, the vibration isolation design of the generator set, and the optimization of the intake and exhaust mufflers, the system operating noise is controlled within 65dB(A)@1 meter, which is about 15-20dB lower than that of traditional diesel generator sets, meeting the environmental requirements of residential areas and public places.

[0025] 4. Rapid Deployment: The highly integrated design allows the system to be installed and debugged within 1 hour. The mobile variant can be transported to the required location at any time, shortening the construction cycle by more than 90% compared to traditional charging stations. It is particularly suitable for rapid response needs in scenarios such as emergency rescue and disaster relief.

[0026] 5. High safety: The multi-level safety protection system enables comprehensive control of risks such as methanol leakage, fire, and electrical failure. The methanol leakage monitoring system can trigger a safety cut-off within 1 second when the concentration reaches 500ppm and reduce the concentration to a safe value within 30 seconds. The fire protection system has a response time of ≤3 seconds and the electrical safety protection action time is ≤0.1 seconds, which greatly improves the safety of system operation.

[0027] 6. Flexible expansion: The modular design supports multiple units in parallel, and the system power can be flexibly adjusted according to actual charging needs. A single module is 40kW, and different power configurations such as 80kW and 120kW can be achieved through parallel connection to meet various application scenarios from single vehicle charging to simultaneous charging of multiple vehicles. Attached Figure Description

[0028] The present invention will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the integrated charging system in this invention; Figure 2 This is a schematic diagram of the security monitoring and alarm module in this invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] Example 1 An integrated charging method for methanol fuel power generation includes the following steps: Step 1: After the electric vehicle is connected to the fast charging module, the control system establishes communication with the vehicle's BMS to obtain the charging power requirement.

[0031] In this step, after the electric vehicle is physically connected to the fast-charging module via the charging interface, the integrated charging system's control system automatically establishes a communication connection with the vehicle's battery management system (BMS). The control system uses a CAN bus or PLC communication protocol to handshake with the vehicle's BMS and obtain the current status information of the vehicle's battery, including key parameters such as remaining battery capacity, maximum allowable charging power, and battery temperature. This data will serve as the basis for subsequent charging processes, ensuring a safe and efficient charging process.

[0032] Step 2: The energy management unit calculates the required power and starts or adjusts the methanol power generation module to match the output, while activating the energy storage buffer unit to enter the charging state.

[0033] After receiving the charging power demand from the control system, the energy management unit performs the following operations: Step 2.1: Based on the power prediction model of the vehicle BMS request (prediction error ≤ ±5%), dynamically adjust the generator set output power 0.5 seconds in advance to avoid no-load or inefficient operation.

[0034] The energy management unit employs a power prediction model built using deep learning algorithms. By analyzing battery status, temperature change trends, and historical charging data transmitted from the vehicle's BMS, it predicts the vehicle's actual power demand within the next 0.5 seconds. The prediction model's error is controlled within ±5%, ensuring the methanol generator module can adjust its output power in advance, preventing the generator set from operating in an inefficient range or experiencing no-load conditions. The prediction model automatically adjusts parameters according to the vehicle battery's charging stage, employing different prediction strategies for the constant current charging and constant voltage charging stages.

[0035] Step 2.2: Manage the distribution of DC power (rectified internal combustion engine power output) to the fast charging module, with a conversion efficiency of ≥92%.

[0036] The energy management unit (EMU) uses a high-efficiency DC-DC converter to rectify the AC power generated by the methanol generator set into DC power, which is then converted to a voltage level suitable for vehicle charging. During the energy conversion process, SiC power devices and an optimized circuit topology are employed to ensure an energy conversion efficiency of over 92%. The system dynamically adjusts the output voltage and current based on the vehicle's BMS charging requirements, achieving precise power distribution.

[0037] Step 2.3: Control the 5-10kWh energy storage buffer unit (preferably a lithium iron phosphate battery with a capacity retention rate of ≥80% at -20℃) to release supplementary power within 0.1 seconds when the vehicle's power demand suddenly increases by more than 10%, thus smoothing out the power generation delay.

[0038] The energy management unit activates the system's built-in 5-10kWh lithium iron phosphate battery energy storage buffer unit, which retains at least 80% of its capacity even at -20℃. During the initial charging phase, the energy storage buffer unit maintains a certain charging state. When it detects a sudden increase in vehicle charging power demand exceeding 10%, it can respond quickly within 0.1 seconds and release supplementary power, effectively mitigating the power shortage issue caused by the methanol generator module's response delay. The energy storage buffer unit can also absorb excess energy when the vehicle's charging power suddenly drops, preventing the methanol generator module from frequently adjusting its operating state.

[0039] Step 3: The energy management unit dynamically adjusts the output power of the methanol power generation module and the charging and discharging amount of the energy storage buffer unit based on the power demand updated in real time by the vehicle's BMS.

[0040] During charging, the energy management unit continuously receives real-time power demand information from the vehicle's BMS and dynamically adjusts the system's operating status based on this information. When the vehicle enters the constant current charging phase, the methanol power generation module operates stably at a higher power. When the vehicle enters the constant voltage charging phase, the system gradually reduces the output power of the methanol power generation module and adjusts the charging and discharging state of the energy storage buffer unit as needed to ensure a stable and efficient energy supply throughout the charging process. The energy management unit employs a fuzzy control algorithm, comprehensively considering power generation efficiency, energy storage status, and charging demand to achieve the optimal energy allocation strategy.

[0041] During the charging process, the system continuously monitors methanol leaks, fire risks, electrical faults, and toxic gas concentrations. When an alarm threshold is triggered, corresponding safety measures are immediately activated, and alarm information is sent via remote communication. The system is equipped with multiple safety monitoring devices, including methanol concentration sensors, temperature sensors, smoke detectors, and electrical fault detection circuits. These sensors are distributed in the methanol storage area, around the power generation module, and at the charging interface, forming a comprehensive safety monitoring network. When an abnormality is detected, the system takes appropriate measures based on different alarm levels, such as cutting off fuel supply, activating fire extinguishing devices, or stopping charging. Simultaneously, the system sends alarm information to the remote monitoring center and relevant personnel via 4G / 5G networks to ensure timely handling of safety hazards.

[0042] The safety shut-off valve of the fuel supply system will trigger a shutdown within 1 second and activate the ventilation system when the methanol concentration is ≥500ppm. A methanol concentration sensor monitors the methanol concentration within the charging station in real time. When the methanol concentration in a certain area reaches or exceeds 500ppm, the system will automatically trigger the safety shut-off valve of the fuel supply system to close within 1 second, and simultaneously activate the ventilation system to operate at maximum airflow to quickly dilute and expel the leaked methanol gas. The ventilation system employs a directional airflow design to ensure that leaked gas does not spread to other areas, and is treated by activated carbon filtration before being discharged, minimizing environmental impact.

[0043] Step 4: After the vehicle finishes charging, the control system disconnects the fast charging connection, and the energy management unit controls the methanol power generation module to gradually reduce its power to standby mode or shut down.

[0044] When the vehicle's BMS sends a charging completion signal or the user actively terminates charging, the control system first safely disconnects the fast charging connection, ensuring the charging interface is disconnected under no-current conditions. Subsequently, the energy management unit decides, based on the current system status and future charging needs, whether to reduce the methanol generator module to a low-power standby state or shut it down completely. If new charging needs are anticipated in the short term, the system will choose to reduce the generator module to standby state to minimize energy waste and equipment wear caused by frequent start-stop cycles. If no charging needs are anticipated for an extended period, the system will execute a complete shutdown procedure, including delayed cooling system operation and fuel line emptying, ensuring safe equipment shutdown. During shutdown, the energy storage buffer unit will maintain an appropriate charging state in preparation for the next rapid restart.

[0045] Through the above steps, this integrated charging method based on methanol fuel power generation achieves efficient and safe charging of electric vehicles, while also possessing characteristics such as high energy utilization efficiency, fast response speed, and safety and reliability, providing a new solution for the construction of electric vehicle charging infrastructure.

[0046] Example 2 An integrated charging system for methanol fuel power generation adopts a modular design. (See reference...) Figure 1 It encompasses a control system, fuel storage and supply module, methanol power generation module, energy storage buffer module, fast charging module, and energy management unit. These modules are highly integrated within a unified frame or containerized structure, enabling rapid deployment and installation and commissioning in a very short time to adapt to different environments and usage requirements.

[0047] The integrated charging system's frame or container structure comes in two variants: mobile and stationary. The mobile variant is mounted on a trailer chassis and equipped with a driving anchor, shock absorption system, and center of gravity design, allowing for flexible movement between different charging locations and rapid response to temporary charging needs. The stationary variant is fixed to a foundation and is suitable for long-term, stable use, providing continuous and reliable charging services.

[0048] In this embodiment, the fuel storage and supply module is responsible for storing methanol fuel and transporting it to the methanol power generation module via a dedicated pipeline. This module employs a double-layer leak-proof design, with an inner layer of corrosion-resistant stainless steel fuel tank and an outer layer of spill-proof container to ensure safe fuel storage. The supply system is equipped with precision flow control valves, which can automatically adjust the fuel supply according to power generation needs, ensuring efficient fuel utilization and safe delivery.

[0049] In this embodiment, the methanol power generation module is the core component of the system, responsible for converting the chemical energy of methanol into electrical energy. This module employs a methanol internal combustion generator design and is housed in a specially designed ultra-quiet enclosure. The inner wall of the ultra-quiet enclosure features a multi-layered sound insulation and absorption structure, including an outer 1.5mm galvanized steel plate, a middle 50mm layer of centrifugal glass wool (density 48kg / m³), and an inner perforated aluminum plate (perforation rate 25%). This multi-layered structure effectively absorbs and blocks the noise generated by the generator set, keeping the system operating noise below 65dB(A)@1 meter, significantly reducing noise interference to the surrounding environment and ensuring quiet operation of the system in various environments.

[0050] In this embodiment, the ultra-quiet enclosure is also equipped with carefully designed air intake and exhaust vents, at which high-efficiency silencers are installed. This ensures sufficient airflow to meet the normal operating requirements of the generator set while effectively reducing airflow noise. The methanol internal combustion generator set is fixed inside the ultra-quiet enclosure by a base. Four natural rubber vibration isolators are installed between the base and the generator set. These isolators have a damping coefficient of 0.25 and a compression of 5-8mm, which effectively reduces the transmission of vibrations generated during generator set operation, further reducing the impact of noise and vibration on the system and the surrounding environment, and ensuring the stability and reliability of the system.

[0051] In this embodiment, the energy storage buffer module uses a high-efficiency lithium battery pack to store excess electrical energy generated by the methanol power generation module and quickly release it to supplement insufficient power generation when needed. This module features an intelligent battery management system that can monitor battery status in real time, optimize the charging and discharging process, extend battery life, and ensure efficient battery operation and safe use.

[0052] In this embodiment, the fast charging module serves as the interface between the system and the charging vehicle. It is equipped with multiple charging interface standards to accommodate the charging needs of different vehicle models. This module features a high-efficiency power conversion circuit, capable of outputting the electrical energy generated by the system with the voltage and current parameters required by the vehicle, ensuring safe and efficient charging and meeting the charging requirements of various vehicles.

[0053] In this embodiment, the control system serves as the brain of the entire charging system. Through a high-performance processor and dedicated algorithms, it acquires charging power requests from the vehicle's BMS in real time, analyzes and processes operational data from each module, and coordinates the collaborative work of all modules. The control system provides system operation status display and operational control functions through a human-machine interface, ensuring that users can easily monitor and control the system's operation.

[0054] In this embodiment, the energy management unit receives charging commands from the control system, calculates the required charging power using a complex algorithm, and accordingly starts or adjusts the methanol power generation module to match the output power. Simultaneously, the energy management unit is also responsible for activating the charging and discharging process of the energy storage buffer unit and managing the distribution of DC power generated by the power generation to the fast-charging module, ensuring the stability and efficiency of the charging process and optimizing the overall energy utilization of the system.

[0055] In this embodiment, the integrated charging system is also equipped with a comprehensive safety monitoring and alarm module, see [link / reference]. Figure 2 This includes methanol leak monitoring devices, fire risk monitoring devices, electrical fault monitoring devices, and toxic gas concentration monitoring devices. These devices monitor the system's operating status continuously. Once an abnormality is detected and an alarm threshold is triggered, corresponding safety measures will be immediately activated, and alarm information will be sent via remote communication to ensure the safe operation of the system.

[0056] In this embodiment, the methanol leak monitoring system deploys eight electrochemical sensors in the fuel tank area, pipeline interfaces, and near the generator set. These sensors have a detection range of 0-1000 ppm and an accuracy of ±5%FS. When the detected methanol concentration reaches or exceeds 500 ppm, the system automatically cuts off the fuel supply and activates explosion-proof fans. These fans have an airflow rate of no less than 1000 m³ / h, capable of reducing the methanol concentration to a safe level within 30 seconds, effectively preventing safety accidents caused by methanol leaks and ensuring the safety of the system and the surrounding environment.

[0057] In this embodiment, the fire protection system is equipped with a temperature sensor and a photoelectric smoke detector. The temperature sensor has a measurement range of -40 to 125°C and can detect abnormal temperature rises in a timely manner. Once a fire risk is detected, the system will activate a fine water mist fire extinguishing device. This device has a response time of no more than 3 seconds, which can quickly control the initial fire, prevent the fire from spreading, and ensure the safety of the system and the surrounding environment.

[0058] In this embodiment, the electrical safety protection system includes overvoltage protection (triggered when the voltage reaches or exceeds 110% of the rated voltage), overcurrent protection (triggered when the current reaches or exceeds 120% of the rated current), short-circuit protection, and leakage protection (triggered when the residual current reaches or exceeds 30mA). The operating time of these protection functions is no more than 0.1 seconds, enabling them to cut off the circuit immediately upon the occurrence of an electrical fault, protecting the system and user safety, and ensuring the stable operation of the system.

[0059] This integrated charging system, through modular design and high integration, effectively combines methanol fuel power generation with fast charging of electric vehicles, solving the problem of limited layout of traditional charging facilities. The system boasts advantages such as flexible deployment, stable operation, and high reliability, making it particularly suitable for use in areas with insufficient grid coverage or in scenarios requiring temporary high-power charging, thus providing an innovative charging solution.

[0060] Example 3 An integrated charging device for methanol fuel power generation includes a processor and a memory, the memory storing the processor's instructions. The device executes these instructions through the processor to implement a charging method for methanol fuel power generation.

[0061] The steps executed by the processor include: after the electric vehicle connects to the fast charging module, it communicates with the vehicle BMS to obtain the charging demand; calculates and adjusts the output of the methanol power generation module to activate the energy storage unit for charging; dynamically adjusts the output of the power generation module and the energy storage unit according to the BMS update requirements; after charging is completed, disconnects the connection and reduces the power of the power generation module to standby or shuts it down.

[0062] The processor uses a 2.0GHz ARM chip, which has real-time data processing capabilities and can complete demand calculations and power allocation within 10ms. The memory includes 128MB ROM and 512MB RAM, used to store system instructions and data processing respectively.

[0063] The processor can also monitor methanol leaks, fires, electrical faults, and toxic gases. When an anomaly is triggered, it executes safety measures, such as cutting off the fuel supply, activating fire suppression systems, and sending alarm messages.

[0064] In a preferred embodiment, the processor is equipped with a security monitoring coprocessor that takes over security functions in the event of a main processor failure, thereby ensuring system security.

[0065] The processor's power prediction model, based on deep learning, analyzes BMS data and predicts power demand 0.5 seconds in advance with an error within ±5%. The model utilizes a neural network to accelerate unit operation, ensuring efficient output from the power generation module.

[0066] The device also includes a human-machine interface that displays system status, charging progress, and safety data via a 7-inch touchscreen, and provides operation access. The processor updates the interface in real time, responding to user input for easy monitoring and control of the charging process.

[0067] Through hardware and software integration, this device enables efficient and safe fast charging of electric vehicles, and features intelligent energy management and comprehensive safety protection functions.

[0068] Example 4 A computer-readable storage medium for storing a program that, when executed, implements the steps of an integrated charging method for methanol fuel-based power generation.

[0069] The computer-readable storage medium can be ROM, RAM, CD-ROM, magnetic tape, floppy disk, flash memory, hard disk drive, or optical data storage device, etc. When the program stored on the storage medium is executed by the processor, it can implement all the steps of the integrated charging method based on methanol fuel power generation as described in Embodiment 1.

[0070] Specifically, the steps implemented when the program is executed include: after the electric vehicle connects to the fast charging module, the control system establishes communication with the vehicle's BMS to obtain the charging power demand; the energy management unit calculates the required power and starts or adjusts the methanol power generation module to match the output, while activating the energy storage buffer unit to enter the charging state; the energy management unit dynamically adjusts the output power of the methanol power generation module and the charging and discharging amount of the energy storage buffer unit according to the power demand updated in real time by the vehicle's BMS; after the vehicle completes charging, the control system disconnects the fast charging connection, and the energy management unit controls the methanol power generation module to gradually reduce its power to standby state or shut down.

[0071] During execution, the program continuously monitors methanol leaks, fire risks, electrical faults, and toxic gas concentrations. When an alarm threshold is triggered, corresponding safety measures are immediately activated, and an alarm message is sent via remote communication. Specifically, when a methanol concentration of ≥500ppm is detected, the program will trigger a safety shut-off valve to close the fuel supply system and activate the ventilation system within one second.

[0072] In terms of energy management, the program also includes the following functions: a power prediction model based on vehicle BMS requests (prediction error ≤ ±5%), dynamically adjusting the generator set output power 0.5 seconds in advance to avoid no-load or inefficient operation; managing the distribution of DC power (the output of the internal combustion engine after rectification) to the fast charging module, with a conversion efficiency ≥ 92%; and controlling a 5-10kWh energy storage buffer unit (preferably a lithium iron phosphate battery with a capacity retention rate ≥ 80% at -20℃) to release supplementary power within 0.1 seconds when the vehicle's power demand suddenly increases by more than 10%, thus smoothing out power generation delays.

[0073] When the program stored on the computer-readable storage medium is executed by the processor, it can achieve intelligent control of the entire charging process, ensuring that the methanol fuel power generation system provides charging services for electric vehicles efficiently and safely.

[0074] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated charging method for methanol fuel power generation, characterized in that, include: Step 1: After the electric vehicle connects to the fast charging module, the control system establishes communication with the vehicle's BMS to obtain the charging power requirement; Step 2: The energy management unit calculates the required power and starts or adjusts the methanol power generation module to match the output, while activating the energy storage buffer unit to enter the charging state; Step 3: The energy management unit dynamically adjusts the output power of the methanol power generation module and the charging and discharging amount of the energy storage buffer unit based on the power demand updated in real time by the vehicle's BMS. Step 4: After the vehicle finishes charging, the control system disconnects the fast charging connection, and the energy management unit controls the methanol power generation module to gradually reduce its power to standby mode or shut down.

2. The integrated charging method for methanol fuel power generation according to claim 1, characterized in that, During the charging process, methanol leakage, fire risk, electrical faults, and toxic gas concentration are monitored throughout. When an alarm threshold is triggered, corresponding safety measures are immediately activated, and alarm information is sent via remote communication.

3. The integrated charging method for methanol fuel power generation according to claim 2, characterized in that, When the methanol concentration is ≥500ppm, the safety shut-off valve of the oil supply system will be triggered to close within 1 second and activate the ventilation system.

4. The integrated charging method for methanol fuel power generation according to claim 1, characterized in that, Step 2 specifically includes: Step 2.1: Based on the power prediction model of the vehicle BMS request, dynamically adjust the generator set output power 0.5 seconds in advance to avoid no-load or inefficient operation; Step 2.2: Manage the allocation of DC power to the fast charging module, with a conversion efficiency ≥92%; Step 2.3: Control the 5-10kWh energy storage buffer unit to release supplementary power within 0.1 seconds when the vehicle's power demand suddenly increases by more than 10%, thus smoothing out the power generation delay.

5. An integrated charging system based on methanol fuel power generation, characterized in that, It includes a control system, and a fuel storage and supply module, a methanol power generation module, an energy storage buffer module, a fast charging module, and an energy management unit, all connected to the control system. The fuel storage module stores methanol fuel and transports it to the methanol power generation module via oil pipes. The methanol power generation module is used to convert the chemical energy of methanol into electrical energy; The energy storage buffer module is used for energy storage and discharge. The fast charging module is used to connect to the charging vehicle; The control system is used to obtain the charging power request from the vehicle's BMS. The energy management unit receives charging commands from the control system, calculates the required charging power, and starts or adjusts the methanol power generation module to match the output. At the same time, it activates the energy storage buffer unit to charge and discharge, and manages the distribution of DC power generated by the power generation to the fast charging module.

6. An integrated charging system for methanol fuel power generation according to claim 5, characterized in that, It also includes a safety monitoring and alarm module, including: a methanol leak monitoring device, a fire risk monitoring device, an electrical fault monitoring device, and a toxic gas concentration monitoring device. It monitors methanol leaks, fire risks, electrical faults, and toxic gas concentrations throughout the process. When an alarm threshold is triggered, it immediately activates the corresponding safety measures and sends alarm information through remote communication.

7. An integrated charging system based on methanol fuel power generation according to claim 5, characterized in that, The methanol power generation module is housed in an ultra-quiet enclosure. The inner wall of the ultra-quiet enclosure is provided with a multi-layer sound insulation and sound absorption structure, which includes an outer galvanized steel plate, a middle layer of centrifugal glass wool, and an inner perforated aluminum plate. The ultra-quiet enclosure is also provided with air inlet and outlet vents, and silencers are installed at the air inlet and outlet vents.

8. An integrated charging system for methanol fuel power generation according to claim 7, characterized in that, The methanol power generation module is a methanol internal combustion generator set. The bottom of the methanol internal combustion generator set is fixed inside the ultra-quiet enclosure via a base. Several vibration isolators are installed between the methanol internal combustion generator set and the base.

9. An integrated charging device for methanol fuel power generation, characterized in that, include: processor; A memory in which executable instructions of the processor are stored; The processor is configured to execute the steps of the integrated charging method for methanol fuel power generation according to any one of claims 1 to 4 by executing the executable instructions.

10. A computer-readable storage medium for storing a program, characterized in that, When the program is executed, it implements the steps of the integrated charging method for methanol fuel power generation as described in any one of claims 1 to 4.

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