Multi-floating-body sea wave two-stage conversion power-generating device

Abstract

The invention provides a multi-floating-body sea wave two-stage conversion power-generating device, which comprises a sea wave direct-drive power-generating part, force transmitting mechanical parts,floaters and a support frame, wherein the sea wave direct-drive power-generating part is composed of at least one generating unit and a generating barrel; each generating unit is composed of a rotor formed by Rb-Fe-B strong magnets which are equidistantly fixed on the same magnet connecting rod in series connection and a stator formed by spirally winding a coil on a coil cylinder; the coil cylinders are vertically placed, and the lower ends of the coil cylinders are fixed at the bottom of the generating barrel; each rotor is positioned in an inner space of the corresponding coil cylinder; andeach force transmitting mechanical part is composed of a transmitting rod with one end being movably connected with the top end of the magnet connecting rod and the other end being movably connected with the corresponding floater, an upper fixing ring and a lower fixing ring which are matched with the outer diameter of the generating barrel and are fixed on different heights of the generating barrel, a short supporting rod with one end being movably connected with the upper fixing ring, and a long supporting rod with one end being movably connected with the lower fixing ring. The device has the characteristics of flexible arrangement, simple structure, low cost and high operation efficiency.

Description

technical field [0001] The invention belongs to the field of ocean energy power generation, in particular to an ocean wave conversion power generation device. Background technique [0002] Wave energy is the most widely distributed and abundant renewable energy in the ocean, and the wave energy that can be developed and utilized in the world reaches 2 billion kilowatts. my country's ocean wave energy resources are relatively rich in reserves, with a theoretical reserve of 12.84 million kilowatts, which has broad prospects for development and utilization. In traditional wave power generation systems, rotary generators are used without exception. Since wave energy exists in the form of high-force, low-speed reciprocating motion, to couple this energy system with a high-speed rotating generator, a series of energy conversion and speed change devices must be used. The traditional wave energy power generation system generally consists of three parts, namely wave collection syst...

AI Technical Summary

Problems solved by technology

First, the traditional wave energy power generation system is based on the existing rotating generator. Its high-speed and high-efficiency characteristics do not match the wave energy, forcing the system to use a complex intermediate conversion system, resulting in low efficiency, large structure, and low reliability of the power generation system. Low-level problems have seriously affected the practical application of the technology

Second, traditional wave power generation systems are mostly shore-mounted fixed installations, with high construction costs, long periods, severe environmental constraints, and weak storm resistance

Third, the current wave energy power generation technology mainly comes from countries such as Europe, where the average wave energy density can reach 20-70 kW / m, while the average wave energy density along the coast of my country is 2-7 kW / m. It is very large, and most power generation systems cannot be well applied to the development and utilization of wave energy in my country

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