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Electric energy conversion system for wave power generation device and control method

A technology for electric energy conversion and power generation devices, applied in circuit devices, ocean energy power generation, safety devices, etc., can solve the intermittent instability of wave power generation, achieve power matching and voltage stability, and improve controllability

Active Publication Date: 2021-03-12
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • 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 for wave power generation device and control method

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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

The invention discloses an electric energy conversion system for a wave power generation device and a control method. An electric energy conversion system controller obtains a scheduling instruction from an island microgrid, and by the cooperative control of a hydraulic motor, a rectifier, a grid-connected inverter and a lithium battery energy storage device, power matching and voltage stabilization of the whole electric energy conversion system in the power generation period are achieved, so that the controllability of the energy conversion process and the stability and controllability of electric energy output of the electric energy conversion system for the wave power generation device are effectively improved.

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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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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