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首页> 外文期刊>Renewable Power Generation, IET >Robust control of a floating OWC WEC under open-switch fault condition in one or in both VSCs
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Robust control of a floating OWC WEC under open-switch fault condition in one or in both VSCs

机译：在一个或多个VSC中的开关故障状态下对浮动OWC WEC的鲁棒控制

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摘要

The operation and maintenance activity of off-shore wind turbines (WTs) increases the cost of the generated energy. Although significant efforts have been made to improve the reliability of the mechanical subassemblies, electrical and electronic subassemblies fail more frequently, causing undesirable downtimes and loss of revenues. Since off-shore WTs and wave energy converters (WECs) share the electrical and electronic subassemblies, the reliability of WECs is expected to be affected by the same causes. This study presents a robust model predictive control for a WEC consisting of an oscillating water column (OWC) installed in a point absorber. The control system is capable of dealing with open switch faults in one or two insulated-gate bipolar transistors of the same arm in any of the voltage source converters (VSCs), or even in both VSCs at the same time. The system allows the OWC WEC to generate energy, although under certain restrictions, thereby reducing the urgency of repair and loss of revenues. The performance of the proposed approach is tested for several cases of open switch faults, experimentally in the laboratory using an OWC WEC emulator.
机译：离岸风力涡轮机（WTS）的操作和维护活动增加了所产生的能量的成本。尽管已经提高了改善机械子组件的可靠性，但电气和电子子组件更频繁地失败，导致不希望的下降时间和收入丧失。由于离岸WTS和波能量转换器（WECS）共享电气和电子子组件，因此WECs的可靠性预计会受到相同原因的影响。本研究提出了一种稳健的模型预测控制，用于由安装在点吸收器中的振荡水柱（OWC）组成的WEC。控制系统能够在任何电压源转换器（VSCS）中的同一臂的一个或两个绝缘栅双极晶体管中处理打开的开关故障，甚至同时在两个VSC中。该系统允许OWC WEC产生能量，尽管在某些限制下，从而降低了维修和损失的紧迫性。在使用OWC WEC仿真器的实验室实验中，在实验室进行了几个开关故障的情况下测试了所提出的方法的性能。

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