论文标题
多旋转涡轮机的负载缓解和功率跟踪控制
Load Mitigation and Power Tracking Control for Multi-Rotor Turbines
论文作者
论文摘要
提出了一种基于模型的多转机系统的可行控制策略，同时追求两个控制目标：将要减轻主塔上的机械负载，并且要遵循外部确定的功率变化，以获得电源系统中的快速功率参考响应。为此，提出了一个由两个级别组成的可扩展控制策略：第一级由每个转子单元的分散控制。通过使用LPV形式主义，可以在设计中使用每个转子的分散风速观察者来考虑受控系统的非线性，以提高整体闭环性能。为了减轻由不对称转子推力引起的多连杆主塔上的横向载荷，引入了高级控制器。最后，通过模拟研究证明了控制器结构的适用性。
A model-based feasible control strategy for multi-rotor systems is presented, pursuing two control objectives simultaneously: Mechanical loads on the main tower are to be mitigated, and an externally determined power change is to be followed to obtain fast power reference response in power systems. For this purpose, a scalable control strategy consisting of two levels is proposed: The first level consists of the decentralized control of each rotor unit. By using an LPV formalism, it is shown how the nonlinearities of the controlled system are considered in the design using a decentralized wind speed observer of each rotor to improve the overall closed-loop performance. To mitigate the lateral loads on the multi-rotor main tower caused by asymmetric rotor thrust forces, a higher-level controller is introduced. Finally, the applicability of the controller structure is demonstrated by simulation studies.
