基于模糊逻辑的直驱式海浪发电系统最大功率跟踪控制  

MAXIMUM POWER TRACKING CONTROL OF DIRECT DRIVE OCEAN WAVE POWER SYSTEM BASED ON FUZZY LOGIC

作　　者：潘海鹏[1] 丁海波 雷美珍[1] 顾敏明[1] 任佳[1] Pan Haipeng;Ding Haibo;Lei Meizhen;Gu Minming;Ren Jia(Faculty of Mechanical Engineering&Automation,Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学机械与自动控制学院,杭州310018

出　　处：《太阳能学报》2021年第6期21-28,共8页Acta Energiae Solaris Sinica

基　　金：浙江省公益技术研究计划(LGG19F030002);浙江省自然科学基金(LY17F030024)。

摘　　要：针对传统扰动观察法在海浪发电系统应用中存在响应速度慢和最大功率点附近振荡等问题,提出基于模糊逻辑控制的最大功率跟踪控制算法,实现海浪发电系统最大功率跟踪。以永磁同步直线电机作为海浪发电机,建立发电机数学模型;在规则海浪激励下,建立发电系统动力学模型,分析发电机输出功率与发电系统阻尼之间的相关特性。在Matlab/Simulink环境下搭建仿真模型,并与传统扰动观察法在海浪发电中的应用进行仿真对比分析。结果表明,所提出的基于模糊逻辑控制算法具有更好的响应速度和鲁棒性。A fuzzy logic based maximum power point tracking(MPPT)control method is proposed based on fuzzy logic in this paper for extracting the maximum ocean wave energy.The use of the proposed control method can potentially avoid the problems of slow response speed and oscillations around the maximum power points in the traditional MPPT methods.The proposed MPPT control is implemented based on a linear permanent magnet synchronous generator(LPSG)for wave energy conversion.The dynamic mathematical model of the LPSG is established,while the relationship between the generator power and system damping is analyzed.The simulations for validating the proposed control method are conducted in Matlab/Simulink.The simulation results are compared with the traditional disturbance&observation method under the same operation conditions.The comparison results show that the proposed control method holds the advantages of relatively better response speed and higher robustness.

关 键 词：波能转换 最大功率点跟踪 模糊逻辑 永磁同步直线发电机 功率捕获 

分 类 号：TM612[电气工程—电力系统及自动化]