Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

COMPRESSED AIR ENERGY STORAGE (CAES) FOR OFFSHORE WIND APPLICATIONS

IP.com Disclosure Number: IPCOM000192584D
Publication Date: 2010-Jan-25
Document File: 11 page(s) / 94K

Publishing Venue

The IP.com Prior Art Database

Abstract

The present invention discloses a technique for using a volume that exists within an offshore wind turbine foundation. Further, the technique also includes the use of compressed air energy storage (CAES) systems with the offshore wind turbine systems. Some of the energy generated by the wind turbine is stored as a compressed air which is channeled to the turbine assembly when needed.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 35% of the total text.

Page 1 of 11

RP13301

COMPRESSED AIR ENERGY STORAGE (CAES) FOR OFFSHORE WIND APPLICATIONS

BRIEF ABSTRACT

    The present invention discloses a technique for using a volume that exists within an offshore wind turbine foundation. Further, the technique also includes the use of compressed air energy storage (CAES) systems with the offshore wind turbine systems. Some of the energy generated by the wind turbine is stored as a compressed air which is channeled to the turbine assembly when needed.

KEYWORDS

    Wind, wind plant, wind turbine, turbine foundation, compressed air energy storage, CAES, offshore wind turbine(s), compressed air, compression train, wind-farm, expander train, offshore wind applications, thermal energy storage, diabatic CAES, adiabatic CAES

DETAILED DESCRIPTION

    Wind power is increasingly gaining importance in the area of renewable sources of energy generation. In recent times, wind turbine technology has been applied to large-scale power generation applications. Modern wind power generation systems typically take the form of a wind turbine farm (or wind farm) having a plurality of wind turbines that supply power to a transmission system providing power to a utility system.

1

Page 2 of 11

RP13301

    These wind turbines can be situated offshore, where the wind blows harder and larger turbines can be installed. Offshore wind farms are useful in densely populated areas such as Europe, where there is a limited space on land and relatively large offshore areas with shallow water. Installation of wind turbines offshore is very expensive because offshore wind turbines are situated on top of supporting structures called foundations (for example, monopiles for shallow waters). Further, these foundations comprise internal volume without any significant use. The cost of foundations for offshore wind farms is a significant fraction of the overall installed cost.

    Although wind energy farms provide a clean and renewable source of energy, the power output generated by each wind turbine varies based on the wind, and the intermittent nature of its supply is a shortcoming for its wide spread usage. Therefore, there exists a need in the state of art for a technique that offers increased supply of offshore wind energy and further makes use of the volume available within the existing foundations.

    The present technique proposes large-scale energy storage for offshore wind farm that allows improved dispatch of offshore wind energy while required. The large scale energy storage is enabled by combining a compressed air energy storage (CAES) plant with an offshore wind farm. In particular the technique uses the volume available within the existing supporting structures (foundations) for components of the CAES plant, such as, but not restricted to, the compressed air storage. Different CAES components may be distributed in each wind turbine of th...