ISSN 0254-0096　CN 11-2082/K

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### 直驱式波浪发电系统无源-滑模控制策略

1. 广东工业大学自动化学院,广州 510006
• 收稿日期:2021-04-25 出版日期:2022-10-28 发布日期:2023-04-28
• 通讯作者: 杨俊华（1965——）,男,博士、教授,主要从事电机电器及其控制、新能源发电中的控制技术方面的研究。yly93@qq.com
• 基金资助:
国家自然科学基金（51370265）; 广东省教育部产学研合作专项资金（2013B090500089）; 广东省自然科学基金（2018A030313010）; 广州市科技计划（202102021135）

### PASSIVE-SLIDING MODE CONTROL STRATEGY OF DIRECT-DRIVE WAVE POWER SYSTEM

Qiu Meng, Yang Junhua, Lin Huijin, Xie Zisen, Huang Weibang

1. School of Automation, Guangdong University of Technology, Guangzhou 510006, China
• Received:2021-04-25 Online:2022-10-28 Published:2023-04-28

Abstract: For the direct-drive wave power system whose input excitation is irregular wave, a passive-sliding mode control strategy is proposed. The bilinear amplitude method is used to calculate the dominant frequency of irregular waves, combined with the wave energy capture strategy to obtain the desired tracking curve, design a passive controller to track the desired curve in real time. In order to reduce the influence of external disturbances and improve the stability of the system, a sliding mode control strategy is introduced to ensure that the system is passive. The resulting impact improves system stability. The expanded state observer is used to replace the speed sensor to realize the identification of the mover's speed. The simulation results show that the bilinear amplitude method can realize the dominant frequency estimation of irregular waves, the speed error observed by the expanded state observer is small, and the proposed control scheme can quickly respond to the expected current changes, accurately track the expected curve, and has strong robustness.