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Direct-drive type wave power generation maximum power tracking algorithm and system

A technology of maximum power tracking and wave power generation, which is applied in the direction of control/regulation system, regulation of electrical variables, instruments, etc., can solve the problems of reducing wave power generation efficiency and difficult to meet the requirements of dynamic performance, so as to improve reliability and safety, improve Dynamic performance, the effect of increasing economic benefits

Active Publication Date: 2018-04-17
SOUTHEAST UNIV
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Problems solved by technology

However, due to the strong time-varying nature of waves, this type of method is difficult to meet the requirements in terms of dynamic performance, which reduces the efficiency of wave power generation.

Method used

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  • Direct-drive type wave power generation maximum power tracking algorithm and system
  • Direct-drive type wave power generation maximum power tracking algorithm and system
  • Direct-drive type wave power generation maximum power tracking algorithm and system

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Embodiment Construction

[0026] Further description will be given below in conjunction with the accompanying drawings and embodiments.

[0027] like figure 1 As shown, a direct-drive wave power generation maximum power tracking system in this embodiment includes a permanent magnet synchronous linear generator, a power circuit, a detection circuit and a control circuit. The power circuit is mainly composed of a three-phase controllable rectifier and a Buck-Boost converter. The input end of the three-phase controllable rectifier is connected to the generator output end, and the output end of the three-phase controllable rectifier is connected to the Buck after the DC bus voltage support capacitor. -Boost converter, the output end of Buck-Boost converter is connected to the load, and the load may be a DC load, a battery charging circuit or as the input of a subsequent inverter. The detection circuit includes a three-phase output current and voltage detection circuit at the machine end and a mover positi...

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Abstract

The invention discloses a direct-drive type wave power generation maximum power tracking algorithm and system. The system includes a permanent magnet linear electric generator, a three-phase controllable rectifier, a Buck-Boost converter, a signal detection and conditioning circuit, and a DSP control circuit. The permanent magnet linear electric generator adopts improved direct thrust for control,and by adjusting the magnitude of magnetic force of the electric generator, the stress condition of the linear electric generator in sea waves can be changed. The optimal electromagnetism force is obtained by the fuzzy variable-step maximum power tracking algorithm, and thus maximum power tracking is achieved. In view of the extreme weather conditions, the motor rotor position is calculated by adopting linear hall, and the running state of the electric generator is monitored in real time. In the wave power generation system, the algorithm plays an important role in improving the power generation efficiency and increasing economic benefits.

Description

technical field [0001] The invention relates to a direct-drive wave power generation maximum power tracking system, which belongs to the technical field of new energy power generation. Background technique [0002] New energy will play an increasingly important role in the energy structure. Solar energy and wind energy have been developed on a large scale, and related technologies are becoming more and more mature. However, the utilization of wave energy is still in its infancy. Among them, the method of using a linear motor as a generator, due to the special structure of the motor, reduces a large number of transmission devices, reduces unnecessary mechanical losses, and increases the power generation efficiency and other advantages, and is playing an increasingly important role in the field of wave power generation. However, the wave energy has strong instability, which leads to the unbalanced power output. The realization of the maximum power tracking of the direct-drive ...

Claims

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Application Information

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IPC IPC(8): G05F1/67
CPCG05F1/67
Inventor 余海涛沈天骄曾成王震东
Owner SOUTHEAST UNIV
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