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基于无源性理论的风电联合控制器设计

, PP. 201-209

Keywords: 风力发电,无源性控制,联合控制器,动态响应

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Abstract:

为了提高风电变流器的动态响应速度,本文提出了一种基于无源性理论的联合控制器设计方案。将机侧、网侧变流器统一考虑,建立了风电变流器系统的整体模型。应用无源性理论对误差系统的跟踪问题进行了控制器的设计,通过采用无源电流控制器与转速、直流电压PI调节器构成的联合控制器结构,可以实现状态量的无静差跟踪、并提高系统的鲁棒性。在此基础上,基于对系统动态的分析,对状态平衡点的选取进行了优化设计,从而提高了控制系统的动态响应速度。硬件在环实验结果验证了该方法具有良好的稳态与动态性能。

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