控制理论与应用2011,Vol.28Issue(11):1634-1640,7.
基于不确定广义模型的永磁同步风力发电机鲁棒H_∞控制
Robust H-infinity control for permanent-magnet synchronous generators in wind-energy conversion system based on uncertain descriptor model
摘要
Abstract
This paper is concerned with the robust H-infinity control for the direct-drive permanent-magnet synchronous generator(PMSG) with varying stator-parameters.The model with varying current-parameters is considered the uncertain descriptor system,to which we propose an output-feedback H-infinity control scheme,and use the internal-model-principle to develop a type-2 controller for eliminating the impact from the aerodynamic disturbances to the rotational speed in the steady state.The controller synthesis is formulated in solving a set of linear matrix inequalities(LMIs).Simulation results show that the proposed algorithm implements desirable static and dynamic performances,evident disturbance rejection and strong robustness under a wide range of variation in the stator parameters.关键词
永磁同步发电机/不确定descriptor系统/鲁棒H∞控制/线性矩阵不等式/内模原理Key words
permanent-magnet synchronous generator/uncertain descriptor system/robust H-infinity control/linear matrix inequality/internal model principle分类
信息技术与安全科学引用本文复制引用
祖晖,章国宝,费树岷,魏自聪..基于不确定广义模型的永磁同步风力发电机鲁棒H_∞控制[J].控制理论与应用,2011,28(11):1634-1640,7.基金项目
国家自然基金重大资助项目 ()
江苏省成果转化—2MW及以上直驱风电机组柔性并网变流器的研发及产业化基金资助项目 ()