直驱式波浪发电系统能量跟踪控制

针对直驱式波浪发电系统输出功率波动特性以及直线电机动子往复运动特性,提出一种基于永磁直线电机动子运动方向判断方法的能量跟踪控制策略。首先,根据永磁直线电机数学模型进行仿真模型的搭建和分析,并基于仿真结果设计圆筒式永磁直线电机。进而,提出波浪发电能量跟踪控制策略,并搭建直驱式波浪发电系统整体仿真模型。最后,基于设计的圆筒式永磁直线电机搭建直驱式波浪发电系统硬件模拟平台进行实验研究。通过仿真和实验验证了永磁直线电机动子运动方向判断的方法和能量跟踪控制策略的有效性。

Best Tracking Performance under Plant Uncertainty and Control Energy Constraint

This paper has investigated best tracking performance for linear feedback control systems in the case that plant uncertainty and control effort need to be considered simultaneously. Firstly, an average integral square criterion of the tracking error and the plant input energy over a class of additive model errors is defined. Then, utilizing spectral factorization to minimize the performance index, we obtain an optimal controller design method, and furthermore study optimal tracking performance under plant uncertainty and control energy constraint. The results can be used to evaluate optimal average tracking performance and control energy in designing practical control systems.