First in the province, an aerial "strongman" team has gone into service as a group in Yueqing, cutting transportation costs by about 60%.

Recently, at the construction site of the 220 kV Tangyan Line renovation project in Yueqing, Wenzhou, State Grid Wenzhou Electric Power Supply Company carried out for the first time an intelligent-controlled four-drone tandem lifting operation using heavy-lift drones, achieving the first full air transport of materials to a 220 kV tower position within Zhejiang Province and opening an efficient "aerial logistics channel" for power grid construction in complex mountainous and forested areas.

The tower position in this pilot construction is located in a steep and dangerous area deep in the mountains of Yueqing, with a height difference of 208 meters from the material yard at the foot of the mountain. The area is densely vegetated and highly ecologically sensitive, and the tower foot plates, large main materials and other components for the mountain tower are heavy per piece, limited by single-drone payload capacity. For a long time, the transport of heavy components has been a prominent bottleneck in drone applications.

This pilot adopted electric-driven heavy-lift drones, supported by intelligent collaborative algorithms, with a single main control terminal coordinating a four-drone formation. The maximum lifting weight exceeded 600 kilograms, allowing stable transport of entire main materials, tower foot plates and other indivisible heavy components, meeting the lifting conditions for large materials of a 220 kV tower. Operation site. Photo by Correspondent Li Li.

On that day, the drones on site transported 16 to 18 tons of materials per day on average, seven times the previous transport efficiency. The manpower input for single-tower construction was reduced by more than 70%, and the construction period was greatly compressed. At the same time, the new technology avoided excavating and building temporary construction roads, streamlined the deployment of high-risk mountain workers, and eliminated the need to build traditional freight cableways. Overall transportation costs were reduced by about 60% compared with traditional cableway construction plans.

"Compared with the commonly modified fuel-powered drones on the market, the standardized mass-produced electric-driven heavy-lift model selected this time operates more stably, has a lower failure rate and offers higher construction reliability," said Lin Xudong, site manager of Wenzhou Electric Power Construction Co., Ltd. He introduced that the equipment can be purchased in batches and deployed quickly. Compared with the customization limitations of modified equipment, it has stronger promotion adaptability and high engineering reuse value.

The successful implementation of the province's first intelligent-controlled four-drone tandem full-material transport operation has enabled low-altitude intelligent technology to empower the construction of a new-type power system and provided a green and intelligent solution for mountain power infrastructure.

Source: Yueqing City Converged Media Center, reporter Zhou Xiujing, correspondents Zheng Yinuo and Li Li. Editor: Peng Ning.