基于模型预测策略的波浪发电无速度传感器滑模控制  

Speed sensorless sliding mode control of wave power generation based on model predictive strategy

作　　者：梁昊晖 杨俊华[1] 杨梦丽 王超凡 黄逸 罗琦 LIANG Haohui;YANG Junhua;YANG Mengli;WANG Chaofan;HUANG Yi;LUO Qi(Guangdong University of Technology,Guangzhou 510006,China;State Grid Henan Extra High Voltage Company,Zhengzhou 450052,China)

机构地区：[1]广东工业大学,广州510006 [2]国网河南省电力公司超高压公司,郑州450052

出　　处：《电测与仪表》2025年第3期176-182,共7页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(51370265);广东省教育部产学研合作专项资金资助项目(2013B090500089);广东省自然科学基金资助项目(2018A030313010);广州市科技计划项目(202102021135)。

摘　　要：为提高复杂海况下直驱式波浪发电系统效率,降低设备维护费用,提出一种基于模型预测策略的无速度传感器滑模控制方案。以电机瞬时功率为成本函数,求解最优电磁力,并将之转换为参考电流。通过矢量控制和模型预测电流控制跟踪电流,实现系统最大功率捕获;依据参考电流判断速度方向,设计滑模速度观测器,实现无速度传感器控制。仿真结果表明,模型预测控制策略下系统能够运行在安全约束范围内,输出功率提高,滑模观测器观测精度高,可增强系统鲁棒性和安全性。In order to improve the efficiency of direct-drive wave power generation system in complex sea conditions and reduce equipment maintenance costs,a speed sensorless sliding mode control scheme based on model predic-tion strategy was proposed.Taking the instantaneous power of the generator as the cost function,the optimal elec-tromagnetic force was solved and converted into the reference current.Through vector control and model predictive current control,the current was tracked to capture the maximum power of wave system.The speed direction was judged according to the reference current,and a sliding mode speed observer was designed to realize speed sensor-less control.The simulation results show that the system can operate within the safety constraint range by model predictive control strategy,the output power is improved,and the observation accuracy of sliding mode observer keeps high,which can enhance the robustness and safety of the system.

关 键 词：波浪发电 模型预测控制 永磁同步直线电机 滑模速度观测器 

分 类 号：TM346[电气工程—电机]