提高基于dfig的风能转换系统低压穿越能力的直流链路电压和撬棍协调控制策略

2018 4th International Conference on Green Technology and Sustainable Development (GTSD) Pub Date : 2018-11-01 DOI:10.1109/GTSD.2018.8595511

Tan Luong Van, T. Truong, Hoan Tran, N. K. Dang

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引用次数: 2

摘要

针对部分额定变流器风力发电机组低压过流(LVRT)时，储能系统(ESS)和撬棍连接在直流母线上的情况，提出了一种直流电压和撬棍的协调控制策略。该方法由ESS控制直流电压，并网侧变流器(GSC)根据电网规范要求控制无功功率。此外，撬棍已被用于消散转子和ESS之间的剩余功率。通过对2mw双馈感应发电机(DFIG)风力发电系统的仿真验证了该系统的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Coordinated Control Strategy for DC-link Voltage and Crowbar to Enhance Low Voltage Ride-Through of DFIG-based Wind Energy Conversion Systems

This paper proposes a coordinated control strategy for DC-link voltage and crowbar for low voltage ride-through (LVRT) of partially-rated converter-based wind turbine with energy storage system (ESS) and crowbar connected to DC-link bus. With the proposed method, the DC-link voltage is controlled by the ESS, while the grid-side converter (GSC) is emploited to control the reactive power according to the grid code requirements. Also, the crowbar has been used to dissipate the surplus power between the rotor and ESS. The validity of the proposed system is verified by simulation results for a 2-MW doubly-fed induction generator (DFIG) wind turbine system.

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2018 4th International Conference on Green Technology and Sustainable Development (GTSD)

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