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Energy storage system and energy storage method for offshore wind turbines

A technology of wind power generating set and energy storage system, which is applied in the direction of wind power generation, hydropower generation, and wind power engines storing gravitational potential energy, etc., and can solve the problems of inability to provide stable power supply for offshore wind power generating sets and reduce the reliability of offshore wind power generating sets, etc. To achieve the effect of easy promotion and use, low cost and high reliability

Active Publication Date: 2022-08-09
BEIJING ETECHWIN ELECTRIC
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AI Technical Summary

Problems solved by technology

However, pumped storage power stations generally rely on specific terrain conditions to build upper and lower reservoirs. When there is no water source near the terrain or the terrain has no height difference, it cannot provide a stable power supply to adjust the energy of offshore wind turbines, which reduces offshore wind power. Wind Turbine Reliability

Method used

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  • Energy storage system and energy storage method for offshore wind turbines
  • Energy storage system and energy storage method for offshore wind turbines
  • Energy storage system and energy storage method for offshore wind turbines

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Embodiment Construction

[0023] Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the invention. In the drawings and the following description, at least regional well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention; and, the dimensions of regional structures may be exaggerated for clarity. Furthermore, the features, structures or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0024] The orientation words ...

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Abstract

The invention relates to an energy storage system and an energy storage method for an offshore wind power generating set. The energy storage system includes: a first storage device, which is a box with an accommodating cavity, the first storage device is far away from the bottom of the tower of the offshore wind turbine and is arranged at a predetermined height from the sea level; the energy storage device includes a water pump and a water pump. The motor connected to the drive, the water pump is connected to the first storage device through the first pipeline, and the seawater is connected to the second pipeline; the motor is connected to the power grid, and is used to drive the water pump to pump the seawater into the first storage device; or, the first storage device is released When seawater is present, the water pump is pushed to run and the motor is driven to generate electricity, and the electricity is transmitted to the grid. The invention can flexibly adjust the stored energy of the offshore wind power generating set without specially constructing a pumped storage power station according to the terrain, and has high reliability.

Description

technical field [0001] The invention relates to the technical field of new energy applications, in particular to an energy storage system and an energy storage method for an offshore wind turbine. Background technique [0002] In recent years, with the gradual improvement of offshore wind power generation technology, offshore wind farms have begun to enter the stage of large-scale development. Due to the randomness of wind energy resources, the electrical energy generated by offshore wind turbines cannot be directly used for local loads. Therefore, offshore wind farms generally need to complement other stable power sources to supply local loads, such as pumped storage power stations. However, the pumped storage power station generally relies on specific terrain conditions to build the upper and lower reservoirs. When there is no water source near the terrain or there is no height difference in the terrain, it cannot provide a stable power supply to adjust the energy of the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/14F03B13/06
CPCF03D9/14F03B13/06Y02A20/00Y02E10/20
Inventor 周建虎杨志千吕梁年
Owner BEIJING ETECHWIN ELECTRIC
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