Deep sea ocean current energy low-speed flow gathering pressurization type hydraulic power generation system

Abstract

The invention discloses a deep sea ocean current energy low-speed flow gathering pressurization type hydraulic power generation system. According to the system, a diffusion type flow gathering acceleration subsystem is arranged on an outer side of a deep sea ocean current energy water turbine in a surrounding manner; the deep sea ocean current energy water turbine is arranged at an inlet of the diffusion type flow gathering acceleration subsystem; the deep sea ocean current energy water turbine is connected with a driving shaft of a pressure compensation variable hydraulic pump through a driving shaft of the deep sea ocean current energy water turbine; the pressure compensation variable hydraulic pump is connected with a doubly-fed induction generator through a two-position four-way electromagnetic directional valve and a variable hydraulic motor; and the two-position four-way electromagnetic directional valve is connected with an efficient pressurization subsystem for driving the variable hydraulic motor and the doubly-fed induction generator to generate power. According to the invention, ocean current energy is efficiently captured; pressure of a hydraulic system is increased through a hydraulic pressurization system, so that electric energy output is increased; and the ocean current energy is efficiently utilized, so that the system has very important significance and strategic values for developing marine power and increasing ocean economy.

Description

technical field [0001] The invention belongs to the technical field of renewable energy power generation, and in particular relates to a deep sea current energy low-speed converging and supercharging hydraulic power generation system. Background technique [0002] In order to further improve the energy structure, protect the ecological environment, cope with climate change, and achieve sustainable economic and social development, it is the general trend to transform and upgrade the traditional energy structure to renewable energy. As an important renewable energy, marine renewable energy has the characteristics of large total reserves, sustainable utilization, green and clean. Affected by rising oil prices and global climate change, European countries, the United States, Canada and other coastal developed countries attach great importance to the strategic position of ocean energy in the future energy field, release ocean energy strategic plans, formulate ocean energy develop...

AI Technical Summary

Problems solved by technology

[0006] The energy density of ocean current energy is proportional to the cube of sea current velocity, and ocean current velocity becomes an important factor affecting the energy density of ocean current energy. As the depth of seawater increases, the velocity of ocean current decreases very rapidly, and the energy density of ocean current energy decreases significantly, resulting in unrealized ocean current energy. Efficient

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