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首页> 外文期刊>International Journal of Modelling, Identification and Control >A survey of control strategies for grid connected wind energy conversion system based permanent magnet synchronous generator and fed by multi-level converters
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A survey of control strategies for grid connected wind energy conversion system based permanent magnet synchronous generator and fed by multi-level converters

机译:基于网格连接风能转换系统的永磁同步发电机控制策略调查,由多级转换器馈送

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摘要

In this study, two control strategies for speed and power control of three-level neutralpoint (3L-NPC) clamped back-to-back converters in wind energy conversion system (WECS) with permanent magnet synchronous generator (PMSG) are proposed. The system consists of generator side converters (GSCs) and grid side converter (GSC) which share a common DC-link capacitor. The proposed control laws combine sliding mode control (SMC) and vector oriented control (VOC) to maximise the generated power from wind turbine generators (WTGs). Considering the variation of wind speed, the GSC injects the generated power into the AC network, and regulates DC-link voltage. Also, it is employed to achieve unity power factor (UPC). The GSCs are employed to achieve maximum power point tracking (MPPT). To validate the proposed approaches, simulations are carried out with MATLAB/Simulink software. The simulation results demonstrate a good performance in various scenarios.
机译:在本研究中,提出了具有永磁同步发电机(PMSG)的风能转换系统(WECS)中的三级中间点(3L-NPC)夹紧背对背转换器的速度和功率控制的两个控制策略。该系统由共享公共直流链路电容器的发电机侧转换器(GSC)和电网侧转换器(GSC)组成。所提出的控制法将滑动模式控制(SMC)和向量导向控制(VOC)组合以最大化来自风力涡轮发电机(WTG)的产生的电力。考虑到风速的变化,GSC将产生的电力注入交流网络,并调节DC-Link电压。此外,它用于实现Unity功率因数(UPC)。使用GSC来实现最大功率点跟踪(MPPT)。为了验证所提出的方法,使用Matlab / Simulink软件进行仿真。仿真结果表明了各种场景的良好性能。

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