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Overview of the Program  
CRH7111 Series energy storage door machine energy saving system is an energy storage system composed of bidirectional DC / DC converter and ultracapacitors. The output DC bus of the energy saving system is connected with the DC bus of the door converter. When the bucket is on-load or on-load, the gravitational potential energy is converted into electric energy and returned to the DC bus of the frequency converter. The energy saving system stores the excess energy raised by the DC bus to the ultracapacitor.
Plan Advantage 1) Using the high power density characteristic of ultracapacitors, it can be charged and discharged quickly, with fast energy recovery speed and high efficiency. 2) The energy is recycled inside the lifting equipment system, and the power saving data is monitored in real time by connecting the Internet of Things interface. The energy consumption of the lifting equipment system is significantly reduced. 3) The device is connected with the DC bus of the lifting equipment system control cabinet, which is simple and convenient. 4) It has bypass protection, high voltage side overvoltage protection, super capacitor overvoltage protection, high voltage side undervoltage protection, super capacitor side undervoltage protection, overheating protection, overcurrent protection and other protection functions.
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Plan Composition
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Overview of the Program CRH7112 Series battery transfer system is a kind of specially designed for tire crane energy saving and energy recovery integration system. When the tire crane is transferred, the power battery system supplies power to the tire crane system through the seamless switching control system which provides electricity for the tire crane and connects the power grid at the same time, the DC bus to achieve the energy saving. On the basis of improving the flexibility of tire rotation field, the system improves the economy of energy storage system through potential energy recovery.
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Plan Advantage 1) Continuous electric switching can be realized through the seamless switching device to improve the efficiency of the transfer. 2) Provide reliable power supply for the tire crane when the power grid fails and uses it as an emergency power supply to ensure the reliability of the equipment. 3) Replace the use of the diesel generator in the transition site to achieve energy saving and emission reduction. 4) Realize the braking energy feedback and reduce the use of the brake resistance. 5) Adopt domestic or international advanced battery and battery management technology to improve the reliability of the energy storage system.
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Plan Composition
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Electrical schematic diagram of the integrated battery transfer and energy recovery system |
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Overview of the Program
CRH7114 series tug hybrid propulsion system is a hybrid propulsion system that integrates linear drive device, energy management system and / or energy storage device. Port tug hybrid propulsion system is composed of generator set, lithium battery pack, DC conversion system, etc. The generator set and lithium battery pack are connected to the DC bus through the centralized frequency conversion control distribution system of DC bus.
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Plan Advantage
1) Fuel saving rate can reach 25%~40%. 2) Reduce pollutant emissions and reduce comprehensive emissions by 60%. 3) Increase system power redundancy and improve system reliability. 4) Reduce the host running time and reduce the equipment maintenance cost. 5) Reduce the noise and provide a healthier and quieter working environment.
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Plan Composition |
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Overview of the Program
CRH7113 Series tire crane hybrid power system is a hybrid integrated system designed for energy saving and consumption reduction based on the requirements of port machine. This system is composed of modular battery pack, AC-DC converter and control system. When the tire crane rises, the lithium battery pack provides energy to the driver. When the tire crane drops, the lifting motor charges the energy through the lithium battery pack control unit. The system optimizes the use of diesel generator set to charge the diesel engine, battery power operation, and braking energy feedback to ensure the stability and reliability of the equipment.
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Plan Advantage
1) Under the best energy saving condition, the overall energy saving rate can reach more than 60%. 2) The system is equipped with sensors to detect abnormal gas in the battery, and can be warned when the battery is abnormal. 3) The most effective seven fluoropropane fire extinguishing device is used to ensure the safety of the system. 4) Adopt battery and battery management technology, and the battery is sufficient to ensure sufficient power supply under any circumstances. 5) The secondary system has AC / DC dual redundant power supply, has the AC-DC system black start capacity, and can still start operation under any failure of the diesel engine or battery. 6) Configure the wireless network remote monitoring system to detect the running status of the system in real time.
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Plan Composition |
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