At 11:00 a.m. on November 19,2024, the rotor of Generator Unit 6 for Level-A maintenance at?the left-bank plant of the Three Gorges Hydropower Plant (TGHPP) was successfully lifted out. This is the first time in the hydropower industry that the remote intelligent operating system for bridge cranes has been used to lift out the rotor.
The?Rotor?is?the?core components of a?hydraulic turbine generator units. The rotor of the generator unit at TGHPP has?a diameter of 18 meters,?together?with the special lifting rig, weighs more than 1,900 tons. It is the only component of the generator unit that requires?joint lifting by two 1,200-ton bridge cranes, with great difficulties in lifting operation and high demand for precision. The rotor hoisting was realized in the remote intelligent operation cabin,?with?the whole process being?smooth, precise and efficient.
The remote intelligent operating system for bridge cranes is?developed under the leadership of TGHPP. The 3D real-time model rendering and driving technology are?adopted to allow real-time display of invisible data in the form of videos, animations, curves, texts,?and indicator lights in the operation cabin. The driver can fully grasp the on-site situation in the operation cabin and seamlessly switch between multiple large bridge cranes in the plant at any time, so as to achieve?remote operation of many cranes just by one person. Compared with traditional bridge crane operation rooms for lifting large equipment, this system has achieved automation of key processes?and?integrated anti-collision and anti-sway functions of bridge crane hooks and automatic parallel operation functions, thereby eliminating the possibility of human factors affecting the lifting quality, effectively avoiding the risk of high-altitude operations, providing reliable technical support for high-quality and efficient lifting operations, and filling in the gap in the remote intelligent operation of large bridge cranes in hydropower stations at home and abroad.
Up to now, TGHPP has carried out the development of a digital collaborative office platform, research on intelligent hydropower pilot demonstration programs, and R&D of an integrated control platform for intelligent robots. It has successfully put into operation more than 30 sets of robots, including the intelligent cleaning and painting robot "Baoshi Jie" for dam concrete surfaces. The successful application of the remote intelligent operating system for bridge cranes is an important achievement obtained?under the overall planning of TGHPP's smart hydropower station construction.
TGHPP will continue to focus on key technologies, intelligent hydropower plants, robotics?technology and emergency response, accelerate the development of new quality productive forces, and improve the operation and maintenance management of large-scale hydropower,?providing?scientific and technological support for the safe and steady operation of the major project.