A fuzzy control strategy for power smoothing and grid dynamic response enrichment of a grid-connected wind energy conversion system
A fuzzy control strategy for power smoothing and grid dynamic response enrichment of a grid-connected wind energy conversion system
复制标题
并网风能转换系统功率平滑和电网动态响应丰富的模糊控制策略
作者：
Howlader AM;Urasaki N;Pratap A;Senjyu;T;Saber AY
本文主要研究基于电网交互式MW级永磁同步发电机的风能转换系统（WECS）的输出功率平滑和电网动态响应增强。应用简单的模糊控制器方法来提高WECS的整体性能。所提出的方法可以完美地从风力涡轮机的惯性中回收存储的动能。因此，它可以确保变速 WECS 的高效功率平滑。另一方面，网侧逆变器由模糊控制器控制。这种方法可以减少直流母线电压的波动，并向电网提供平稳的电力。将所提出的方法与其他两种方法（例如最大功率点跟踪控制方法和无模糊控制器方法）进行了比较。直流母线电路中还包含一个简单的并联电路。因此，在系统故障情况下，WECS可以稳定运行。通过数值模拟验证了该方法的有效性。版权所有 © 2013 约翰·威利父子有限公司
This paper concentrates on the output power smoothing and the grid dynamic response enhancement of a grid‐interactive MW‐class permanent magnet synchronous generator‐based wind energy conversion system (WECS). A simple fuzzy controller method is applied to improve the overall performance of the WECS. The proposed method can retrieve the storing kinetic energy from the inertia of a wind turbine, perfectly. As a result, it can ensure a proficient power smoothing of the variable speed WECS. On the other hand, the grid side inverter is controlled by the fuzzy controller. This approach can reduce the fluctuation of DC link voltage and can deliver a smooth power to the power grid. The proposed method is compared with two other methods such as the maximum power point tracking control method and the without fuzzy controller method. A simple shunt circuit also includes in the DC link circuit. Therefore, during the system fault condition, the WECS can perform a stable operation. Effectiveness of the proposed method is verified by numerical simulations. Copyright © 2013 John Wiley & Sons, Ltd.