不规则波浪发电系统MPPT及限功率优化控制  

Irregular Wave Power Generation System Mppt and Limited Power Optimization Control

作　　者：谭绮仪 杨俊华[1] 黄宝洲 蔡浩然 TAN Qi-yi;YANG Jun-hua;HUANG Bao-zhou;CAI Hao-ran(School of Automation,Guangdong University of Technology,Guangzhou Guangdong 510006,China;China Southern Power Grid Dongguan Power Supply Bureau,Dongguan Guangdong 523000,China;Guangzhou Municipal Engineering Design&Research Institute Co.Ltd.,Guangzhou Guangdong 510060,China)

机构地区：[1]广东工业大学自动化学院,广东广州510006 [2]中国南方电网东莞供电局,广东东莞523000 [3]广州市市政工程设计研究总院有限公司,广东广州510060

出　　处：《计算机仿真》2022年第7期105-111,共7页Computer Simulation

摘　　要：常规的控制策略未考虑实际海域中波浪发电的不规则性,影响波浪发电系统运行效率及稳定性,为此提出一种考虑不规则波的波浪发电系统功率优化方案。通过分析波浪发电装置最大功率捕获条件,构建基于永磁直线同步发电机的孤岛运行波浪发电系统。根据波浪输入速度及位移,采用纵横交叉算法(CSO)中纵横交叉算子交替作用,寻得电机电磁力最优控制量,通过空间矢量调制的电流控制策略,实现最大功率点跟踪(MPPT)控制及限功率(非MPPT)控制2种模式。在输入变化及负荷变化的情况下,验证了考虑不规则波的波浪发电系统运行的可行性与稳定性。结果表明,所提控制方法具有强鲁棒性,提高波浪能捕获效率,使波浪发电系统功率优化效果好。The conventional control strategy does not consider the irregularity of wave power generation in the actual sea area,which leads to low power generation efficiency and weak operation stability of the wave power generation system.Therefore,a power optimization scheme for wave power generation system considering irregular waves is proposed.By analyzing the maximum power capture conditions of the wave power generation device,an islanded wave power generation system was constructed based on a permanent magnet linear synchronous generator.According to the wave input speed and displacement,the alternating action between the vertical crossover operator and the horizontal crossover operator in the Crisscross Optimization(CSO)Algorithm was used to find the optimal control amount of the electromagnetic force of the motor.Through the current control strategy of space vector modulation,the maximum power point tracking(MPPT)and limited power(Non-MPPT)control were realized.The feasibility and stability of the wave power generation system considering the irregular wave were verified under the input and load changes.The results show that the proposed control method has strong robustness,which can improve the efficiency of wave energy capture and make the power optimization effect of the wave power generation system good.

关 键 词：波浪发电系统 不规则波 纵横交叉算法 最大功率点跟踪控制 限功率控制 功率优化 

分 类 号：TM619[电气工程—电力系统及自动化]