Multi-rotor wind generating system provided with suspenders and capable of automatically facing wind

Abstract

The invention discloses a multi-rotor wind generating system provided with suspenders and capable of automatically facing wind. The multi-rotor wind generating system comprises a lower tower 1, a slewing bearing 3, wind turbines, an upper tower 2, steel ropes and / or steel rods 8, beams 6, tail vanes 7 and the suspenders 9, wherein the slewing bearing is arranged between the upper tower and the lower tower; two sides of the upper tower are connected with one end of each beam; the outer end of the uppermost beam is connected with the top end of the upper tower through a steel rope and / or a steel rod; outer ends of adjacent beams are connected through steel ropes and / or steel rods; the upper ends of the suspenders are connected with the lowermost beam; the wind turbines are connected with the top of the upper turbine, the beams or / and the lower ends of the suspenders; the beams have the same length; beams on one side are provided with more wind turbines that those on the other side; and the tail vanes are connected with the upper tower, the beams or / and cabins. The multi-rotor wind generating system has the advantages that: blades have long service life, the occupied area is small, the installation and maintenance cost is low, the reliability is high, the application range is wide, a slewing bearing or a rotary driving device in a cabin is eliminated, the bearing bears small force, and automatic wind facing and yawing are realized.

Description

technical field [0001] The invention belongs to the field of wind energy utilization, and relates to a multi-rotor wind power generation system with a boom and capable of automatically facing the wind. Background technique [0002] With the global energy crisis and global environmental pollution intensifying, many countries are paying more attention to the research, development and utilization of clean and renewable energy. The Global Wind Energy Council pointed out that compared with other renewable energy technologies, wind power technology is more mature, its efficiency is higher, the industry has the best prospect, and its development and utilization growth rate is much higher than that of conventional energy. One of the fastest renewable energy technologies. [0003] The wind rotor is the core component that converts wind energy into mechanical energy, so the performance of the blade determines the performance of the wind turbine, and the safe and stable operation of t...

AI Technical Summary

Problems solved by technology

Once a problem occurs, the wind farm will cause economic losses due to downtime and power outages, plus the cost of maintenance, hoisting and replacement parts, over-limit transportation, repeated installation, etc. In addition, most of the wind turbines are installed in remote or inaccessible areas, so it is difficult to hoist and disassemble Big, huge price paid in the end

Therefore, although the manufacturing cost of wind turbines decreases with the increase of power, the total cost will increase on the contrary considering the maintenance and other costs in the later period.

On the other hand, the length of blades of giant wind turbines will reach 60-70m, and land transportation and installation are extremely difficult. The capacity of cranes used for installation will exceed 1200-1400t. Many areas do not have this condition, thus limiting the use of giant wind turbines

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