Range-extending type methanol power generator set

Abstract

The utility model relates to the technical field of emergency power supply, and discloses an extended-range methanol power generator set, which comprises a methanol power generation system, an energy storage and energy management system and an environment adaptation module, the methanol power generation system comprises a methanol engine, a range-extending power generator fixedly connected with the methanol engine, an ECU and a cooling loop. When the extended-range methanol power generator set is used in geological exploration field operation, due to the fact that the extended-range methanol power generator set is small in plateau attenuation and good in low-temperature performance, dynamic adjustment is achieved through the environment adaptation module, stable power supply can be achieved in the plateau high and cold environment, and the service life of the extended-range methanol power generator set is prolonged. Power can be stably supplied in the plateau alpine environment, methanol fuel can be supplied through local existing gas station facilities, fuel cost is low, supply is convenient, emission is clean, the environment protection requirement is met, and reliable electric power guarantee is provided for field operation and emergency of all industries.

Description

Technical Field

[0001] This utility model relates to the field of emergency power supply technology, specifically to a range-extended methanol-powered generator set. Background Technology

[0002] With the rapid development of new energy technologies and the advancement of "dual carbon" goals, the demand for energy conservation and emission reduction in the power generation equipment sector is becoming increasingly urgent. Currently, traditional gasoline and diesel generator sets still dominate applications in field operations, emergency power supply, and special environments (such as high-altitude and frigid regions). However, they suffer from problems such as high noise levels, high fuel costs, severe power attenuation at high altitudes, and high emissions. Although existing technologies have attempted to adopt alternative solutions such as hydrogen fuel cells, methanol fuel cells, and photovoltaic power generation, these technologies are either too expensive, lack sufficient environmental adaptability, or have low energy density and poor stability, making it difficult to fully meet the power supply needs in complex scenarios. Moreover, current generator sets lack real-time sensing and dynamic adaptation mechanisms for environmental parameters, making it difficult to meet actual usage requirements. Therefore, we propose a range-extended methanol-powered generator set to address the aforementioned problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a range-extended methanol-powered generator set, which solves the following problems: firstly, it generates significant noise, affecting the surrounding and working environment; secondly, the fuel cost is relatively high, increasing operating costs; thirdly, in high-altitude and cold regions, the generator set experiences severe power attenuation, affecting its working efficiency; and finally, their emissions are high, failing to meet the requirements of green environmental protection.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a range-extended methanol power generator set, including a methanol power generation system, an energy storage and energy management system, and an environmental adaptation module;

[0005] The methanol power generation system includes a methanol engine, a range extender generator fixedly connected to the methanol engine, an ECU, and a cooling circuit.

[0006] The cooling circuit includes a radiator, a circulating water pump, and cooling pipes;

[0007] The energy storage and energy management system includes a battery energy storage system (BESS), a power conversion system (PCS), and an energy management system (EMS).

[0008] The environment adaptation module includes an environmental sensor group and an environmental data processing controller, which are used to collect external environmental parameters and generate adjustment and control commands.

[0009] The methanol power generation system and the energy storage and management system are connected via a CAN bus, and the environmental adaptation module is connected to both the methanol power generation system and the energy storage and management system via a CAN bus.

[0010] Preferably, the environmental sensor group includes a temperature sensor, a humidity sensor, a barometric pressure sensor, and an altitude sensor. The output of each sensor is connected to the input of the environmental data processing controller. The output of the environmental data processing controller is connected to the ECU and the energy management system (EMS) via a CAN bus for data interaction.

[0011] Preferably, the battery energy storage system (BESS) consists of a lithium iron phosphate battery pack and a battery management system (BMS). The lithium iron phosphate battery pack adopts a 384V automotive voltage platform and has a storage capacity of not less than 20kWh. The battery energy storage system (BESS) also includes a battery heating device, which uses a PTC ceramic heating element.

[0012] Preferably, the power conversion system (PCS) is used for power conversion and management, including controlling the battery charging and discharging process through the battery management system (BMS), and simultaneously supplying power to the BOP and engine ECU, providing external power supply via DC / AC inverter, and managing external AC charging.

[0013] Preferably, the energy management system (EMS) includes a hardware control module, which is connected to the environmental data processing controller, ECU, and PCS via a CAN bus. The hardware control module is used to receive sensor data and adjust commands to the circulating water pump in the cooling circuit and the ECU of the methanol engine.

[0014] Preferably, the main power generation of the methanol engine is converted to a 384V DC bus voltage and output to the energy storage battery, and its ECU and BOP power supply is provided by the energy storage and energy management compartment; the cooling circuit also includes a preheating device and a temperature control valve, the preheating device is connected to the water channel of the methanol engine cylinder block, and the temperature control valve is controlled by the ECU to open and close via the CAN bus. The methanol engine enhances thermal management and fuel pretreatment to meet the special environmental requirements of high-altitude and cold regions.

[0015] Preferably, the system outputs power externally through the energy storage and energy management system, with the main output interface being a three-phase four-wire AC power supply; the operating data of the environment adaptation module can be uploaded to the remote monitoring platform through the information interaction interface.

[0016] Beneficial effects

[0017] This invention provides a range-extended methanol-powered generator set. Compared with the prior art, it has the following advantages:

[0018] This range-extended methanol-powered generator set, when used in geological exploration field operations, exhibits low attenuation at high altitudes and excellent low-temperature performance. Through an environmental adaptation module, it achieves dynamic adjustment, enabling stable power supply in high-altitude and frigid environments. Methanol fuel can be supplied using existing local gas station facilities, resulting in low fuel costs and convenient supply. Simultaneously, it produces clean emissions, meeting environmental protection requirements, and providing reliable power assurance for field operations and emergency response in various industries. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure and connection of the range-extended methanol power generator set of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection between the battery and power system of this utility model;

[0021] Figure 3 This is a connection block diagram of the energy storage and energy management system of this utility model;

[0022] Figure 4 This is a schematic diagram showing the voltage and interface output of the alcohol power generation system and energy storage and management system of this utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4 As shown:

[0025] A range-extended methanol-powered generator set includes a methanol power generation system, an energy storage and energy management system, and an environmental adaptation module.

[0026] The methanol power generation system includes a methanol engine, a range extender generator fixedly connected to the methanol engine, an ECU, and a cooling circuit;

[0027] The cooling circuit includes a radiator, a circulating water pump, and cooling pipes;

[0028] The energy storage and management system includes a battery energy storage system (BESS), a power conversion system (PCS), and an energy management system (EMS). The battery energy storage system (BESS) consists of a lithium iron phosphate battery pack and a battery management system (BMS). The lithium iron phosphate battery pack uses a 384V automotive voltage platform and has a storage capacity of no less than 20kWh. The battery energy storage system (BESS) also includes a battery heating device that uses PTC ceramic heating elements. The power conversion system (PCS) is used for power conversion and management, including controlling the battery charging and discharging process through the battery management system (BMS), supplying power to the BOP and engine ECU, providing external power supply via DC / AC inverter, and managing external mains charging. The energy management system (EMS) includes a hardware control module that is connected to the environmental data processing controller, ECU, and PCS via a CAN bus. It is used to receive sensor data and adjust commands to the circulating water pump in the cooling circuit and the ECU of the methanol engine. The methanol engine has enhanced thermal management and fuel pretreatment to meet the special environmental requirements of high-altitude and cold regions.

[0029] The environmental adaptation module includes an environmental sensor group and an environmental data processing controller, which are used to collect external environmental parameters and generate adjustment and control commands. The environmental sensor group includes a temperature sensor, a humidity sensor, a barometric pressure sensor, and an altitude sensor. The output of each sensor is connected to the input of the environmental data processing controller. The output of the environmental data processing controller is connected to the ECU and the energy management system (EMS) via a CAN bus for data interaction.

[0030] The methanol power generation system is connected to the energy storage and energy management system via a CAN bus, and the environmental adaptation module is connected to both the methanol power generation system and the energy storage and energy management system via a CAN bus.

[0031] The methanol engine's main power generation is converted to 384V DC bus voltage and output to the energy storage battery. Its ECU and BOP power supply is provided by the energy storage and management compartment. The cooling circuit also includes a preheating device and a temperature control valve. The preheating device uses a stainless steel heating sleeve nested at the inlet of the methanol engine's cylinder block water passage, sealed to the water passage pipe via a flange. The temperature control valve is a solenoid three-way valve, with the valve body fixed to the cooling pipe branch with M8 bolts. The temperature control valve is controlled by the ECU via a CAN bus. The system outputs externally through the energy storage and management system. The main output interface is 380V 50Hz AC, using a three-phase four-wire system, and other power output interfaces and information interaction interfaces can be provided according to user needs. The operating data of the environmental adaptation module can be uploaded to a remote monitoring platform via the information interaction interface. The methanol engine is also equipped with a turbocharger.

[0032] In this implementation plan: the methanol engine of the methanol power generation system is selected from an improved model based on an existing mature automotive methanol engine, such as a 1.8L engine with a rated power of up to 100kW, a rated torque of not less than 190Nm, a maximum speed limited to 5600±200r / min, and an idle speed range of 700±100r / min. In the cooling circuit, the area of ​​the high-efficiency radiator is increased to cope with the problem of low air pressure and difficult heat dissipation in high-altitude areas. At the same time, antifreeze with good low-temperature performance is added to the cooling pipes to ensure that the coolant will not freeze in the cold environment, in order to meet the thermal management requirements of the high-altitude and cold environment. The fuel pretreatment section is equipped with a filtration and heating device to ensure good atomization and combustion of methanol fuel at low temperatures.

[0033] In the energy storage and energy management system, the lithium iron phosphate battery pack of the battery energy storage system BESS adopts a 384V voltage platform with an initial configuration of 20kWh storage capacity, which can be expanded to a larger capacity according to user needs. The battery management system BMS monitors the battery's voltage, current, temperature and other parameters in real time to realize the charging and discharging management and protection of the battery.

[0034] The power conversion system (PCS) has a high-efficiency DC / AC inverter function, which converts the DC power output from the battery into 380V 50Hz three-phase AC power. It also supports external AC power to charge the battery, providing a stable power supply for the BOP and engine ECU.

[0035] The Energy Management System (EMS) collects real-time operating parameters of various parts of the system through sensors, such as the speed, temperature, and oil pressure of the methanol engine, the SOC, voltage, and current of the battery, and the output electrical energy parameters. It then processes and analyzes this data to achieve source-load balance management. When the load demand is low, the methanol generator is controlled to operate intermittently, with the energy storage battery providing power independently. When the load demand is high, the methanol generator is controlled to operate in its high-efficiency range, sharing power with the energy storage battery to ensure stable system operation. Simultaneously, the EMS has remote monitoring capabilities, allowing it to transmit system operating status to a monitoring center via network for convenient remote management and maintenance.

[0036] The environmental sensor group of the environmental adaptation module adopts a distributed arrangement. The temperature and humidity sensors are installed inside the unit casing, while the barometric pressure and altitude sensors are installed at the ventilation point on the top of the unit. The environmental data processing controller is integrated in the energy storage and energy management compartment and is connected to each sensor through shielded wires. The parameters collected by the environmental sensor group are processed by the environmental data processing controller and then synchronized to the ECU and the energy management system (EMS) via the CAN bus.

[0037] When the altitude and barometric pressure sensors of the environmental adaptation module detect an altitude ≥ 3000m and a corresponding barometric pressure ≤ 70kPa, the environmental data processing controller sends a command to the ECU to adjust the methanol injection pulse width and intake volume, reduce power attenuation at high altitudes, and increase the turbocharging system to automatically start boosting at altitudes above 3000m. When the temperature sensor detects an ambient temperature ≤ -15℃, the environmental data processing controller, in conjunction with the energy management system (EMS), activates the battery heating device to ensure that the lithium iron phosphate battery capacity retention rate is ≥ 80%. When the humidity is detected to be ≥ 90%RH for more than 1 hour, the environmental data processing controller triggers the PCS to increase the insulation monitoring frequency from once per hour to once per minute, and at the same time, the cooling circuit starts the dehumidification mode to reduce the risk of short circuits.

[0038] The methanol power generation system and the energy storage and energy management system communicate at high speed via CAN bus. The adjustment commands of the environmental adaptation module are transmitted through the same bus to ensure coordinated operation of all parts. The system's external output interface is a 380V 50Hz AC three-phase four-wire main output interface. At the same time, other power output interfaces such as a 220V single-phase AC power interface and RS485 information interaction interface can be configured according to user needs.

[0039] When used in geological exploration field operations, this range-extended methanol-powered generator set can provide stable power supply in high-altitude and cold environments due to its low attenuation at high altitudes and good low-temperature performance. It can also achieve dynamic adjustment through an environmental adaptation module. The methanol fuel can be supplied using existing local gas station facilities, which is low-cost and convenient. At the same time, the emissions are clean and meet environmental protection requirements, providing a reliable power guarantee for field operations and emergency response in various industries.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A range-extended methanol-powered generator set, characterized in that: This includes a methanol power generation system, an energy storage and management system, and an environmental adaptation module; The methanol power generation system includes a methanol engine, a range extender generator fixedly connected to the methanol engine, an ECU, and a cooling circuit. The cooling circuit includes a radiator, a circulating water pump, and cooling pipes; The energy storage and energy management system includes a battery energy storage system (BESS), a power conversion system (PCS), and an energy management system (EMS). The environment adaptation module includes an environmental sensor group and an environmental data processing controller, which are used to collect external environmental parameters and generate adjustment and control commands. The methanol power generation system and the energy storage and management system are connected via a CAN bus, and the environmental adaptation module is connected to both the methanol power generation system and the energy storage and management system via a CAN bus.

2. The range-extended methanol power generator set according to claim 1, characterized in that: The environmental sensor group includes a temperature sensor, a humidity sensor, a barometric pressure sensor, and an altitude sensor. The output of each sensor is connected to the input of the environmental data processing controller. The output of the environmental data processing controller is connected to the ECU and the energy management system (EMS) via a CAN bus for data exchange.

3. The range-extended methanol power generator set according to claim 2, characterized in that: The battery energy storage system (BESS) consists of a lithium iron phosphate battery pack and a battery management system (BMS). The lithium iron phosphate battery pack adopts a 384V automotive voltage platform and has a storage capacity of no less than 20kWh. The battery energy storage system (BESS) also includes a battery heating device, which uses a PTC ceramic heating element.

4. The range-extended methanol power generator set according to claim 2, characterized in that: The power conversion system (PCS) is used for power conversion and management, including controlling the battery charging and discharging process through the battery management system (BMS), while also supplying power to the BOP and engine ECU, providing external power supply via DC / AC inverter, and managing external AC charging.

5. The range-extended methanol power generator set according to claim 1, characterized in that: The Energy Management System (EMS) includes a hardware control module, which is connected to the Environmental Data Processing Controller, ECU, and PCS via a CAN bus. The hardware control module is used to receive sensor data and adjust commands to the circulating water pump in the cooling circuit and the ECU of the methanol engine.

6. The range-extended methanol power generator set according to claim 1, characterized in that: The methanol engine's main power generation is converted to a 384V DC bus voltage and output to the energy storage battery. Its ECU and BOP power supply is provided by the energy storage and energy management compartment. The cooling circuit also includes a preheating device and a temperature control valve. The preheating device is connected to the methanol engine cylinder block water passage, and the temperature control valve is controlled by the ECU to open and close via the CAN bus.

7. The range-extended methanol power generator set according to claim 1, characterized in that: The system outputs data to the outside through the energy storage and energy management system, with the main output interface being a three-phase four-wire AC power supply; the operating data of the environment adaptation module can be uploaded to the remote monitoring platform through the information interaction interface.

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