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Modeling, analysis, control and design application guidelines of Doubly Fed Induction Generator (DFIG) for wind power applications.

机译：用于风力发电应用的双馈感应发电机（DFIG）的建模，分析，控制和设计应用指南。

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摘要

Double Fed Induction Generators (DFIG) has been widely used for the past two decades in large wind farms. However, there are many open-ended problems yet to be solved before they can be implemented in some specific applications. This dissertation deals with the general analysis, modeling, control and applications of the DFIG for large wind farm applications. A detailed "d-q" model of DFIG along with other applications is simulated using the MATLAB/Simulink platform. The simulation results have been discussed in detail in both sub-synchronous and super-synchronous mode of operation. An improved vector control strategy based on the rotor flux oriented vector control has been proposed to control the active power output of the DFIG. The new vector control strategy is compared with the stator flux oriented vector control which is commonly used. It is observed that the new improved vector control method provides a better active power tracking accuracy compare with the stator flux oriented vector control.;The behavior of the DFIG -based wind farm under the various grid disturbances is also studied in this dissertation. The implementation of the Flexible AC Transmission System devices (FACTS) to overcome the voltage stability issue for such applications is investigated. The study includes the implementation of both a static synchronous compensator (STATCOM), and the static VAR compensator (SVC) as dynamic reactive power compensators at the point of common coupling to support DFIG-based wind farm during disturbances. Integrating FACTS protect the grid connected DFIG-based wind farm from going offline during and after the disturbances. It is found that the both devices improve the transient performance and therefore helps the wind turbine generator system to remain in service during grid faults. A comparison between the performance of the two devices in terms of the amount of reactive power injected, time response and the application cost has been discussed in this dissertation.;Finally, the integration of the battery energy storage system (BESS) into a grid connected DFIG- based wind turbine as a proposed solution to smooth out the output power during wind speed variations is also addressed.
机译：在过去的二十年中，双馈感应发电机（DFIG）已在大型风电场中得到广泛使用。但是，在可以在某些特定应用程序中实现之前，还有许多悬而未决的问题需要解决。本文主要研究大型风电场应用中DFIG的一般分析，建模，控制和应用。使用MATLAB / Simulink平台对DFIG及其它应用程序的详细“ d-q”模型进行了仿真。仿真结果已在次同步和超同步操作模式下进行了详细讨论。提出了一种基于转子磁链定向矢量控制的改进矢量控制策略，以控制DFIG的有功功率输出。将新的矢量控制策略与常用的面向定子磁通的矢量控制进行了比较。可以看出，与面向定子磁通的矢量控制相比，改进的矢量控制方法具有更好的有功功率跟踪精度。本文还研究了基于双馈异步电动机的风电场在各种电网干扰下的行为。为了克服此类应用的电压稳定性问题，研究了柔性交流输电系统设备（FACTS）的实现。该研究包括在公共耦合点同时实现静态同步补偿器（STATCOM）和静态VAR补偿器（SVC）作为动态无功功率补偿器，以在干扰期间支持基于DFIG的风电场。集成FACTS可保护基于电网的基于DFIG的风电场在干扰期间和之后不会离线。发现这两种设备都改善了暂态性能，因此有助于风力涡轮发电机系统在电网故障期间保持运行。本论文讨论了两种设备在无功功率注入，时间响应和应用成本方面的性能比较。最后，将电池储能系统（BESS）集成到电网中还提出了基于DFIG的风力涡轮机，作为在风速变化期间使输出功率平稳的建议解决方案。

著录项

  • 作者

    Masaud, Tarek.;

  • 作者单位

    Colorado School of Mines.;

  • 授予单位 Colorado School of Mines.;
  • 学科 Engineering Electronics and Electrical.;Alternative Energy.;Energy.
  • 学位 Ph.D.
  • 年度 2013
  • 页码 143 p.
  • 总页数 143
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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