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Energy storage system and method of offshore wind generating set

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: 2020-12-29
BEIJING ETECHWIN ELECTRIC
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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 method of offshore wind generating set
  • Energy storage system and method of offshore wind generating set
  • Energy storage system and method of offshore wind generating set

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Embodiment Construction

[0023] Features and exemplary embodiments of various aspects of the invention will be 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. It will be apparent, however, 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 to provide a better understanding of the present invention by showing examples of the present invention. In the drawings and the following description, at least well-known structures and techniques of regions have not been shown in order to avoid unnecessarily obscuring the present invention; and, for clarity, the dimensions of region structures may have been exaggerated. Furthermore, the features, structures, or characteristics described hereinafter may be combined in any suitable manner in one or more embodiments.

[0024] Th...

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Abstract

The invention relates to an energy storage system and method of an offshore wind generating set. The energy storage system comprises a first storage device and an energy storage device. The first storage device is a box body with a containing cavity, is far away from the bottom of a tower drum of the offshore wind generating set and is arranged at a preset height away from the sea level. The energy storage device comprises a water pump and a motor in transmission connection with the water pump, and the water pump communicates with the first storage device through a first pipeline and further communicates with seawater through a second pipeline. The motor is connected with the power grid and used for driving the water pump to pump the seawater into the first storage device. Or, when the first storage device releases the seawater, the water pump is pushed to operate and drive the motor to generate electricity at the same time, and electric energy is transmitted to the power grid. According to the energy storage system and method of the offshore wind generating set, a pumped storage power station does not need to be specially built according to terrains, stored energy of the offshorewind generating set can be flexibly adjusted, and the reliability is high.

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 power generating set. Background technique [0002] In recent years, with the gradual improvement of offshore wind power generation technology, offshore wind farms have entered the stage of large-scale development. Due to the randomness of wind energy resources, the electric energy generated by offshore wind turbines cannot be directly used for local loads. Therefore, offshore wind farms generally need to operate complementary to other stable power sources to supply local loads, such as pumped storage power plants. 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 offsho...

Claims

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Application Information

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Patent Type & Authority Applications(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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