中国电机工程学报2024，Vol.44Issue(9)：3531-3540,中插16,11.DOI:10.13334/j.0258-8013.pcsee.223386
计及弱磁效应的直驱式波浪发电系统变系数模型预测控制策略
Variable Coefficient Model Predictive Control Strategy for Direct-drive Wave Energy Conversion System Considering Field Weakening Effect
秦川 1姜安妮 1孙铱萌 1金默涵 2丁维 3吴峰1
作者信息
- 1. 河海大学能源与电气学院,江苏省 南京市 211100
- 2. 国网安徽省电力有限公司天长市供电公司,安徽省 滁州市 239300
- 3. 国网江苏省电力有限公司超高压分公司,江苏省 南京市 211100
- 折叠
摘要
Abstract
In order to improve the power capture efficiency of wave energy converter(WEC)while satisfying various constraints of the system during operation,this paper proposes a variable coefficient model predictive control(MPC)strategy for direct-drive wave power generation system considering field weakening effects,with the objective of maximizing the average capture power.As for the problem of over modulation of converter output voltage caused by excessive wave excitation force,this paper introduces field weakening control into optimization algorithm to increase the operating range of system and improve the power capture efficiency of WEC under demagnetization-limit of generator.In addition,based on simulation analysis,the corresponding relationship between the regularization coefficient in the MPC objective function and the average capture power is found via simulation tests.On this basis,fast Fourier transformation(FFT)and superposition theorem is employed to establish a variable coefficient MPC control strategy for direct-drive WEC available for irregular wave input.The simulation results show that the proposed scheme can effectively improve energy capture efficiency while meeting system constraints in irregular waves.关键词
直驱式波浪发电/最大功率捕获/模型预测控制/弱磁控制/变系数Key words
direct-drive wave energy generation/maximum power capture/model predictive control/field weakening/variable coefficient分类
信息技术与安全科学引用本文复制引用
秦川,姜安妮,孙铱萌,金默涵,丁维,吴峰..计及弱磁效应的直驱式波浪发电系统变系数模型预测控制策略[J].中国电机工程学报,2024,44(9):3531-3540,中插16,11.
