Tuning control algorithm of mutual inductance coupling linear switched reluctance wave generator

Abstract

The invention discloses a tuning control algorithm of a mutual inductance coupling linear switched reluctance wave generator, which is used for controlling exciting current of the generator by tracking a power resonance point of a power generation system aiming at a low-speed and high-thrust marine environment so as to fulfill the aim of maximum power absorption. The system comprises a mutual inductance coupling double-side linear switched reluctance motor serving as a generator body and an asymmetric half-bridge topological power conversion device serving as a controller; and by using a control mode of mono-polar double-phase time sharing exciting power generation, movement frequency of the generator changes along with frequency of wave, so that the capability of maximum power absorption of wave energy is realized in a certain frequency range. The tuning control algorithm of the resonance point tracking control wave generator, provided by the invention, has the advantages that the system energy conversion efficiency is increased, the system reliability is enhanced, the auxiliary hardware equipment and saving cost can not be increased, and has great industrial prospect.

Description

technical field [0001] The invention belongs to a tuning control algorithm in the control field of an oscillating float type wave generator, and in particular relates to an optimal wave energy absorption control of a mutual inductance coupling linear switched reluctance wave generator. Background technique [0002] The ocean contains a wealth of green energy waiting for people to develop and utilize it. Among them, wave energy, as the highest-grade and easiest-to-use energy, has become one of the most extensively researched marine energy sources in the world. Existing commercial wave energy conversion devices all use rotating generators to convert wave energy to electric energy in conjunction with the speed-up link. In recent years, direct-drive wave energy conversion devices have emerged to overcome the energy loss problem in the intermediate links of traditional devices. It has become a hot spot in the field of wave energy research, and a large number of related control st...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the limitation of the resonant frequency range of the oscillating float type wave energy conversion device, avoid the problem of unstable cost and high performance of the permanent magnet linear generator, and improve the conversion rate of the wave energy generation device at the same time, the present invention provides a mutual inductance coupling linear generator The tuning control algorithm of the switched reluctance generator, by controlling the excitation current to control the reverse electromagnetic force of the mutual inductance coupled linear switched reluctance generator, makes the natural frequency of the wave energy conversion device close to or equal to the frequency of the wave excitation force, with wave-electric energy conversion With the advantages of high efficiency, good reliability and convenient implementation, it has a good industrialization prospect

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