How to help wind power go to the deep sea? Liebherr offers this solution.

In order to make more effective use of the wind resources contained in the deep sea,，

Floating Wind Turbines are rapidly becoming popular in the industry.。

This type of Wind Turbine consists of an underwater anchor point、Mooring bearing、Steel structure（Floating Foundation）、Tower and rotor with blade。On land、Tidal flat、In offshore Wind Turbine，Upwind layout、The wind turbine with fixed foundation adopts electric drive to realize the yaw function.。But on the deep offshore wind turbines,，If the upwind layout is still used+Fixed foundation+Arrangement of electric drive yaw，It is difficult to face the construction of underwater fixed foundation.、The construction cost is high、Long construction time，The difficulty of these processes is directly proportional to the depth of the offshore wind power foundation.。

Mingyang Intelligence“OceanX”The downwind layout allows the wind turbine to adjust yaw without relying on the drive of the electric reducer.，O as to relieve the dependence on the seabed fixed foundation.。Downwind layout、The combination of the underwater anchor and the mooring bearing enables the yaw adjustment of the floating wind turbine。In the special environment of the deep sea，Floating wind turbines can be anchored to the seabed by steel cables.，The electricity generated is transmitted back to land by submarine cables.。This technology provides a new idea for the construction of cost-priority offshore wind farms in deep sea areas.。

But，How to ensure the reliability of floating structures？

How to realize the yaw function of the wind turbine？

The answer is the mooring system developed by Liebherr.——

New bearings with a diameter of more than four meters，Key components used to connect the floating wind power platform to the anchor point below the sea surface。

Because mooring bearings operate almost permanently under high pressure and corrosive environmental conditions,，Some parts of the bearing must be integrally formed or welded from stainless steel。In addition，In order to cope with a very low probability of water ingress，Our engineers realized the function of water inflow monitoring by installing Liebherr self-developed sensors at different positions inside the bearing.。According to our experience in the application of marine engineering products，An important cause of bearing water ingress is the wear of seals.。

So，The mooring bearing is designed with multiple seals.，Provide higher reliability for the sealing system in underwater condition。Based on Liebherr's unique intelligent bearing monitoring system，We can also place sensors between these seals.，To monitor water ingress into the seal system。For example：One sensor is placed in each of the different levels of the entire containment system to monitor water ingress。

Through this layout，We can know the exact location and severity of water ingress.，It can also assist the operation and maintenance personnel to judge whether it is necessary to go to the wind turbine for treatment.。In the event that the wind turbine requires maintenance or repair，The floating platform can be disconnected from the underwater anchor point，Be towed by a smaller vessel to the O & M mother ship or towed back to the wind power home port for maintenance。

So，Through this mooring system.，Liebherr provides a better solution for project life-cycle cost control in the wind industry.：More efficient utilization of deep sea breeze resources、Shorter construction cycle、Lower construction costs and reduced O & M costs and downtime losses。

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