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首页> 外文期刊>Electric power systems research >Control of a new stand-alone wind turbine-based variable speed permanent magnet synchronous generator using quasi-Z-source inverter
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Control of a new stand-alone wind turbine-based variable speed permanent magnet synchronous generator using quasi-Z-source inverter

机译：基于准Z源逆变器的新型独立风力发电机变速永磁同步发电机的控制

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摘要

In this paper a new variable speed permanent magnet synchronous generator (PMSG)-based stand-alone wind energy conversion system (SWECS) is proposed. The interface between the PMSG and the isolated load is accomplished by a quasi -Z-source inverter (qZSI) with battery storage system. The battery-assisted qZSI can balance the stochastic fluctuations of the wind power injected to the load and improve the voltage and frequency control. In addition to the battery storage, a dump load is used in the proposed SWECS to better maintain the active power balance and stability of the dc-link voltage during over-generation condition as well as sudden load changes. The proposed control system is able to provide an uninterrupted and reliable supply to sensitive loads under various power generation scenarios of the SWECS and sudden changes in the load demand. Moreover, the proposed controller provides maximum power point tracking (MPPT) which is essential for optimum operation of the SWECS. The validity of the proposed system is proved by simulation results carried out using MATLAB/SIMULINK.
机译：本文提出了一种基于新型变速永磁同步发电机（PMSG）的独立风能转换系统（SWECS）。 PMSG和隔离负载之间的接口由带有电池存储系统的准Z源逆变器（qZSI）完成。电池辅助的qZSI可以平衡注入负载的风能的随机波动，并改善电压和频率控制。除了电池存储之外，在拟议的SWECS中还使用了甩负荷，以在过发电状况以及突然的负载变化期间更好地保持有功功率平衡和直流母线电压的稳定性。所提出的控制系统能够在SWECS的各种发电情况下以及负载需求的突然变化下，为敏感负载提供不间断且可靠的供电。此外，建议的控制器提供最大功率点跟踪（MPPT），这对于SWECS的最佳运行至关重要。利用MATLAB / SIMULINK进行的仿真结果证明了所提系统的有效性。

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