Multi-level coaxial serial-parallel ocean wave power generation device

Abstract

The invention discloses a multi-level coaxial serial-parallel ocean wave power generation device. The power generation device comprises a permanent-magnet stator, a coil framework, a protecting shell, a first coil, a second coil, a third coil, a fourth coil, a buoy, a guide cylinder, a first rigid connecting lever, a ball head joint bearing, a second rigid connecting lever, a balance weight box and an electric energy processing module, wherein a coil winding a is formed by connecting the first coil with the second coil in series, a coil winding b is formed by connecting the third coil with the fourth coil in series, and the coil winding a and the coil winding b are connected in parallel and are connected with the electric energy processing module; the first coil, the second coil, the third coil and the fourth coil are same in the winding direction and same in winding number. the effective range of the height of waves ranging from 0.1 m to 1.4 m is used by the device, the device can supply power for devices such as detection equipment and a meteorological sensor which are needed to be supplied power independently on the sea, and the application limitation of power supply devices of solar energy and wind energy is avoided.

Description

technical field [0001] The invention belongs to the field of energy development, in particular to a multi-stage coaxial series-parallel power generation device using NdFeB N38 as a permanent magnet material, with simple structure and high efficiency. Background technique [0002] Ocean wave power generation needs to convert the energy of seawater fluctuations into electrical energy. According to the different forms of energy conversion, the current wave power generation schemes can be classified into four categories: pneumatic, hydraulic, mechanical and direct drive. These four types of energy conversion devices (Wave Energy Converter, WEC) all need to contact and interact with seawater through a medium. [0003] Pneumatic WEC uses air as the conversion medium. Under the heave of the wave, the wave energy is converted into the pressure energy and kinetic energy of the air, and the airflow is used to drive the turbine to rotate and drive the generator to generate electricity....

AI Technical Summary

Problems solved by technology

[0003] Pneumatic WEC uses air as the conversion medium. Under the heave of the wave, the wave energy is converted into the pressure energy and kinetic energy of the air, and the airflow is used to drive the turbine to rotate and drive the generator to generate electricity. Conversion, its energy conversion efficiency is low; the generator is noisy, the installation location is limited, and has a great impact on the land; the ocean wave energy density of the shore type and the near shore type is relatively low

The pendulum type WEC is limited by the installation location and is only suitable for shore or shallow sea areas, with limited applicability; the raft type device is composed of an articulated raft body and a hydraulic system, and its disadvantage is that the raft type wave energy conversion device is generally Larger volume, higher construction cost and easy damage to the hinge

[0005] The mechanical WEC is mainly composed of mechanical mechanisms such as a clutch gearbox. The sealed drive shaft is used to convert the energy of the ups and downs of waves into the mechanical energy of the rotating motor through the gearbox, and then generate electrical energy. Disadvantages: the use of mechanical structures such as gearboxes increases the system The number of energy conversions reduces the energy conversion efficiency and reliability of the system, and the maintenance cost is high

(2) The TPMLM air gap magnetic density of the radial magnetization method is relatively small, and the magnetization m

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