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首页> 外文会议>International Middle East Power Systems Conference >Adequate Crowbar for Enhancing the Performance of Squirrel Cage Induction Gnerators Wind Farms
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Adequate Crowbar for Enhancing the Performance of Squirrel Cage Induction Gnerators Wind Farms

机译：足够的撬杠，以提高笼型感应发电机风电场的性能

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The asynchronous wind farms are based on squirrel cage induction generators (SCIG/WF). The main disadvantage of SCIG/WF is the deeply affected by the faults which may occur in the interconnected grid. These conditions can lead to disconnect SCIG/WF from the grid. The crowbar has been used effectively in protecting the stator or rotor coils of doubly fed induction generators (DFIG) which are used in variable speed wind farms. The large value of crowbar causes an overvoltage after fault removal. In this paper, a developed method is used to enhance the performance of SCIG/WF during the grid faults. The developed method is based on using the crowbar as outer protection to equip save path for the fault current. This method is proposed to investigate the value of crowbar which can prevent SCIG/WF from disconnection, limiting the current at the contact point between SCIG/WF and grid. The impact of adequate crowbar on SCIG/WF is investigated during symmetrical fault (Three phase fault) and unsymmetrical fault (double line) using MATLAB Simulink program.
机译：异步风电场基于鼠笼式感应发电机（SCIG / WF）。 SCIG / WF的主要缺点是互连电网中可能发生的故障对故障的影响很大。这些情况可能导致SCIG / WF与电网断开连接。撬棍已有效地用于保护变速风力发电场中使用的双馈感应发电机（DFIG）的定子或转子线圈。较大的撬棍值会导致故障排除后产生过电压。在本文中，使用一种改进的方法来增强电网故障期间SCIG / WF的性能。所开发的方法基于使用撬棍作为外部保护，为故障电流配备了节省路径。提出该方法以研究能够防止SCIG / WF断开，限制SCIG / WF与电网之间的接触点电流的撬棍的值。使用MATLAB Simulink程序研究了在对称故障（三相故障）和非对称故障（双线）期间，适当的撬棍对SCIG / WF的影响。

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