POWER OPTIMIzATION OF DIRECT-DRIVE WAVE POWER SYSTEM BASED ON DIRECT THRUST FORCE CONTROL

被引：0
|
作者：
Huang Y. [1 ]
Yang J. [1 ]
Liang H. [1 ]
Luo Q. [1 ]
Wang C. [1 ]
机构：
[1] School of Automation, Guangdong University of Technology, Guangzhou
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2024年 / 45卷 / 02期
关键词：
direct thrust force control; maximum power point track; optimal control; wave energy conversion; wave power;
D O I：
10.19912/j.0254-0096.tynxb.2022-1080
中图分类号：
学科分类号：
摘要：
In order to improve wave energy capture capability of the system and analyze the force on the float，approximately fitting the radiation force by the state- space method，the mathematical model of direct- drive wave power system was established. Taking the captured wave energy of the system as the objective function，and solving Hamilton鸳s equation in the S domain based on the optimal control theory，the singular optimal control rate was calculated，and the ideal electromagnetic force signal was obtained by inverse Laplace transform. Aimed at ensuring the tracking effect of the thrust force and primary flux，combined with direct thrust force control，a second order sliding mode control scheme was designed to ensure the tracking effect of the thrust force and primary flux. The results show that the proposed optimal power scheme has high capture efficiency，the proposed controller has small tracking error and good dynamic performance. It can improve the wave energy conversion rate，effectively reduce the thrust force and primary flux impulse，and optimize the system output power. © 2024 Science Press. All rights reserved.
引用
收藏
页码：206 / 212
页数：6
相关论文
共 19 条
  • [1] XIONG F J, YANG J H，, SHEN H，, Et al., The maximum power point tracking control based on crisscross optimization algorithm for wave power generation［J］, Electrical measurement & instrumentation, 56, 8, pp. 124-130, (2019)
  • [2] EL- SATTAR A A., MPPT strategy based on speed control for AWS-based wave energy conversion system［J］, Renewable energy, 83, pp. 305-317, (2015)
  • [3] XIAO X L, XIAO L F, YANG L J., Energy harvesting study of series direct driven float wave energy converter ［J］, Acta energiae solaris sinica, 39, 2, pp. 398-405, (2018)
  • [4] YUAN Z M, Et al., Wave force prediction effect on the energy absorption of a wave energy converter with real-time control ［J］, IEEE transactions on sustainable energy, 10, 2, pp. 615-624, (2019)
  • [5] KANG Q，, XIAO X，, NIE Z X，, Et al., An optimal control strategy for output power of the directly driven wave power generation systems［J］, Automation of electric power system, 37, 3, pp. 24-29, (2013)
  • [6] CAI H R, YANG J H, LIN Q M，, Et al., An optimal control strategy for output power of directly driven wave generation system based on Fourier analysis back- stepping method ［J］, Electrical measurement & instrumentation, 55, 18, pp. 57-63, (2018)
  • [7] YANG J H, CHEN H F, LU S L，, Et al., Power optimization control of DSSOGI frequency locking loop and improved whale optimization algorithm［J］, Acta energiae solaris sinica, 42, 6, pp. 12-20, (2021)
  • [8] HUANG X R, XIAO X., A neural network-based power control method for direct-drive wave energy converters in irregular waves［J］, IEEE transactions on sustainable energy, 11, 4, pp. 2962-2971, (2020)
  • [9] LU S L, YANG J H，, SHEN H, Et al., Economic model predictive control of direct- drive wave power generation systems［J］, Electrical measurement & instrumentation, 58, 3, pp. 131-138, (2021)
  • [10] ZHAN S Y, LI G., Nonlinear noncausal optimal control of wave energy converters via approximate dynamic programming［J］, IEEE transactions on industrial informatics, 15, 11, pp. 6070-6079, (2019)
12