基于AWS的波浪发电系统的建模与仿真

摘要

基于阿基米德浮子(Archimedes wave swing,AWS)的波浪发电系统是第1个直接驱动式波浪发电系统,其结构简单,效率较高.对AWS式波浪发电系统的浮子和直线发电机进行建模,给出其驱动系统模型,推导出直线发电机模型在abc坐标和dq坐标之间的变换关系,以及dq坐标下的直线发电模型,为设计其控制器打下基础.利用Matlab仿真软件搭建AWS式波浪发电系统的仿真系统,并进行空载和负载状态下的仿真,验证模型的正确性.%Archimedes wave swing (AWS) based wave energy conversion (WEC) system is the first device to adopt the direct-drive power take-off technique, which leads to a simple energy conversion configuration with a higher efficiency. The AWS based WEC system consists of a floater and a linear permanent-magnet generator (LPMG). The model of the AWS based WEC system was built in this paper. The transformation between the abc and dq frames of reference for the model of a LPMG was conducted. The model of a LPMG in dq frame of reference is the base for its controller design. The model was implemented in Matlab simulation system, by which the effectiveness of the model was tested under no-load and R-C load conditions.