Development of NC5440TYL Electric Fracturing Truck

According to the equipment requirements for shale gas development, and considering the networking control requirements for unit operation in the future, the NC5440TYL electric fracturing truck is developed. The whole vehicle integrates the electric drive device(frequency converter), high-power motor and pumping equipment(fracturing pump)on one heavy-duty chassis, which not only reduces the area of the well site, but also avoids the common mode voltage hazards to the motor stator and bearing. The control system adopts robust theory to achieve precise control of the fracturing pump. The automation of diagnosis and maintenance can shorten the abnormal downtime and reduce the labor intensity of workers. The overall structure of the electric fracturing vehicle, the damping technology, the topological structure of the main circuit of the variable frequency drive, and the cabinet protection design of the electric drive device are studied. The video network monitoring system and automatic disc pump are designed. The results of in-plant tests and field applications show that the NC5440TYL electric fracturing truck can reduce construction costs and well site area, has good transport performance, improves the efficiency of fracturing operations, and has a good application prospect.