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Improvements to control of underwater turbine

A technology for turbines and water control, applied in engine control, rotational speed control, control system usage, etc., to achieve the effect of reducing cost and increasing power

Inactive Publication Date: 2012-05-02
ATLANTIS RESOURCES CORP PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current control systems are not yet able to deal with these various output risk factors

Method used

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  • Improvements to control of underwater turbine
  • Improvements to control of underwater turbine
  • Improvements to control of underwater turbine

Examples

Experimental program
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Embodiment Construction

[0101] Subsea power generation systems typically include turbines having multiple blades or blades. The system also typically includes a power extraction device, such as a generator or a pump, to generate electricity, and rotation or movement of the blades or blades under the influence of water pressure or lift causes the power extraction device to generate electricity. In the simplest form of a turbine, the rate of motion or rotation of the turbine is proportional to the motion or velocity of water flowing over or through the turbine. If the flow rate is too low, the turbine will not work and no electricity will be produced. Likewise, if the flow rate is irregular or inconsistent, the rate of power generation will also be irregular or inconsistent.

[0102] An example of a system for controlling the operation of a water turbine according to a preferred embodiment of the present invention is shown in figure 1 middle. The subsea generator 40 is connected to the grid 70 and i...

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PUM

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Abstract

A system and a method for controlling operation of an underwater power generator are described, as well as computing componentry for controlling the operation of the underwater power generator. The system comprises: meters for measuring selected properties associated with blade speed and inward water flow of the underwater power generator; a drive for altering one or more selected aspects of operation of the underwater power generator; and a data processing apparatus comprising a central processing unit (CPU), a memory operatively connected to the CPU, the memory containing a program adapted to be executed by the CPU, wherein the CPU and / or memory are operatively adapted to receive information from the meters to calculate a Tip Speed Ratio (TSR or lambda) and implement an instruction to the drive to change the one or more selected operating parameters of the underwater power generator in response to the calculated TSR or lambda.

Description

technical field [0001] The present invention generally relates to a system and method suitable for controlling the operation of a subsea power generation unit. Background technique [0002] The technique of generating electricity from water currents is known. However, many known systems for generating electricity from water flow are not easy to control. For connecting grids and power sources, it is useful to have predictable and controllable power output. [0003] Although the flow of water at a particular location generally varies in a predictable manner (often such as the ebb and flow of tides), these Variations can alter the power that can be extracted from the subsea generating unit and the efficiency with which the power is extracted. Furthermore, there will be times when the flow changes in unpredictable ways such as from some frontal, lunar or other unforeseen events. This can increase the flow in an undesired manner or as a function of frequency and / or amplitude ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B15/00F03B13/10
CPCY02E10/226F05B2270/1014F03B15/08F05B2270/329F05B2270/335F03B15/12F03B15/16F05B2270/327Y02E10/20F03B13/10F03B15/00
Inventor 约翰·基尔
Owner ATLANTIS RESOURCES CORP PTE LTD