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Electric energy conversion system and control method of a wave energy generating device

A technology for electric energy conversion and power generation devices, which is applied to circuit devices, ocean energy power generation, safety devices, etc., can solve problems such as intermittent instability of wave power generation, and achieve the effect of improving controllability

Active Publication Date: 2021-10-08
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Waves are a random periodic movement, so there are strong intermittency and instability in wave power generation

Method used

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  • Electric energy conversion system and control method of a wave energy generating device

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Embodiment Construction

[0047] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0048] For ease of understanding, see figure 1 , an embodiment of an electric energy conversion system of a wave energy generating device provided by the present application, including a hydraulic energy storage device, a hydraulic motor group, a generator set, a rectifier group, a grid-connected inverter, a step-up transformer, and a lithium battery energy storage...

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Abstract

This application discloses an electric energy conversion system and control method for a wave energy power generation device. The electric energy conversion system controller obtains dispatch instructions from the island microgrid, and coordinates the hydraulic motor, rectifier, grid-connected inverter, and lithium battery energy storage device. Control, realize the power matching and voltage stability of the entire electric energy conversion system during the power generation period, effectively improve the controllability of the energy conversion process of the electric energy conversion system of the wave energy generation device, and the stability and controllability of the electric energy output.

Description

technical field [0001] The present application relates to the technical field of wave energy power generation, and in particular to an electric energy conversion system and control method of a wave energy power generation device. Background technique [0002] Wave energy is one type of ocean energy, which is generated by wave motion on the ocean surface, and is composed of kinetic energy generated by particle motion in fluctuating water and potential energy of the vertical displacement of the wave surface relative to the average water surface. The use of wave energy to generate electricity can partially replace the diesel power generation of islands in deep seas, provide renewable and clean electricity for islands, and help the development and construction of deep sea islands. [0003] Waves are a random and periodic motion, so wave power generation has strong intermittency and instability. In order to realize the random and intermittent decoupling of electric energy and wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B13/22F03B15/00H02J3/38H02J3/32
CPCF03B13/22F03B15/00F05B2220/706H02J3/32H02J3/381Y02E10/30
Inventor 梁崇淦刘石王红星刘志刚杨毅
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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