Background
This project is based on the actual needs of green mines and intelligent mines. By applying the DC/DC converter independently developed by Wenlida Power Electronics, the energy wasted during the braking of the truck when going downhill can be recovered into the energy storage battery. When the truck is in working conditions that require power output, such as when going uphill, the energy in the battery can be released, so as to achieve the goal of reducing the fuel consumption of the diesel engine.
Project Analysis
Current Situation of the Project: Fuel-powered mining trucks still face many challenges in terms of environmental protection and energy consumption. Traditional fuel engines emit a large amount of harmful gases and particulate matter, causing serious pollution to the mines and their surrounding environments. At the same time, high fuel consumption also increases the operating costs of mines and reduces economic benefits. In order to address these issues, many mining enterprises have begun to seek environmentally friendly alternative products for converting mining trucks from "fuel-powered" to "electric-powered".
Customer Requirements:
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Operation Efficiency:
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Improve Power Transmission Efficiency: The power transmission efficiency of electric motor drives is relatively high, which can better adapt to load changes and improve operation efficiency.
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Reduce Failure Rate: Compared with fuel-powered mining trucks, the failure rate of pure electric mining trucks can be reduced by 20%-30%, thus increasing the effective working time of users.
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Intelligent Development: Promote intelligent upgrading. Electric mining trucks can be combined with intelligent technologies such as the Internet of Things and big data to achieve functions such as remote control and automated operation, and promote the intelligent development of mines.
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Cost Aspect: Electricity and hydrogen energy are usually less costly than fuel. In the long run, they can reduce operating costs. Moreover, with the development of power technology and the scale effect, the cost may be further reduced.
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Performance Improvement: Electric mining trucks have certain advantages in power output, and can provide more stable and powerful power, which helps to improve operation efficiency and quality.
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Environmental Benefits:
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Reduce Exhaust Emissions: Electric mining trucks produce almost no exhaust gas and noise pollution, which helps to reduce exhaust emissions in mining areas and protect the environment.
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Reduce Pollution Emissions: According to calculations, for example, the first batch of 5 electric heavy trucks in a certain mining area can reduce carbon dioxide emissions by 1,105 tons, carbon monoxide emissions by 61 tons, and hydrocarbon emissions by 2.5 tons per year, which has a positive effect on environmental protection.
Design Scheme
01. The system consists of 3 cabinets, including 1 power distribution cabinet and 2 DCDC cabinets. In the 2 DCDC cabinets, one cabinet contains 7 DCDC modules, and the power of each module is 150kW; the other cabinet contains 6 DCDC modules, and the power of each module is 150kW.
02. The system provides a 7-inch touch screen for customers to monitor data and achieve various functions through touching.
03. The system provides an RS485 interface, which provides users with functions of remote control, remote measurement and remote adjustment.
System Topology Diagram
Advantages of the Scheme
01. Zero Emission: Hydrogen fuel cell mining trucks do not produce exhaust emissions during operation, only water and a small amount of heat are generated, which is environmentally friendly.
02. High Efficiency: The energy conversion efficiency of hydrogen fuel cells is as high as 60-80%, which is much higher than that of traditional internal combustion engines, giving it higher energy utilization efficiency.
03. Sustainability: Hydrogen, as a fuel source, is renewable and can be produced in various ways, such as electrolysis of water and natural gas reforming.
Conclusion
In conclusion, high-power bidirectional DCDC has broad application prospects in the project of converting mining trucks from fuel-powered to electric-powered. It can improve the energy efficiency of mining trucks, extend their service life, reduce energy consumption, and adapt to various complex working environments. With the continuous progress of technology and the in-depth application, it is believed that it will play an even more important role in future projects of converting mining trucks from fuel-powered to electric-powered.
System Topology Diagram
Advantages of the Scheme
01. Zero Emission: Hydrogen fuel cell mining trucks do not produce exhaust emissions during operation, only water and a small amount of heat are generated, which is environmentally friendly.
02. High Efficiency: The energy conversion efficiency of hydrogen fuel cells is as high as 60-80%, which is much higher than that of traditional internal combustion engines, giving it higher energy utilization efficiency.
03. Sustainability: Hydrogen, as a fuel source, is renewable and can be produced in various ways, such as electrolysis of water and natural gas reforming.
Conclusion
In conclusion, high-power bidirectional DCDC has broad application prospects in the project of converting mining trucks from fuel-powered to electric-powered. It can improve the energy efficiency of mining trucks, extend their service life, reduce energy consumption, and adapt to various complex working environments. With the continuous progress of technology and the in-depth application, it is believed that it will play an even more important role in future projects of converting mining trucks from fuel-powered to electric-powered.
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