...
首页> 外文期刊>IEEE Transactions on Energy Conversion >Damping Effect of Virtual Synchronous Machines Provided by a Dynamical Virtual Impedance
【24h】

Damping Effect of Virtual Synchronous Machines Provided by a Dynamical Virtual Impedance

机译:通过动态虚拟阻抗提供的虚拟同步机的阻尼效果

获取原文
获取原文并翻译 | 示例
           

摘要

Virtual synchronous machines (VSMs) emulate the swing equation for grid synchronization and inertia provision. Usually, a large damping coefficient is necessary in VSMs to provide equivalent damper winding effect, which is, however, not aligned with the fact that the physical swing equation of synchronous generators (SGs) contains only a small mechanical friction factor. This large damping coefficient could result in undesired droop characteristics. In this letter, we use damping torque analysis to reveal the damping mechanism of SGs, and show that the damping effect actually comes from the dynamics of the transient/subtransient reactances aggregated as a dynamical impedance. Based on this finding, we elaborate on how to get rid of the large damping coefficient in VSMs by using a dynamical virtual impedance (DVI) to emulate SG's damping mechanism.
机译:虚拟同步机(VSM)模拟播放方程进行电网同步和惯性配置。通常,在VSM中需要大的阻尼系数以提供等效的阻尼绕组效果,然而,这是不与同步发电机(SGS)的物理挥杆方程仅包含小机械摩擦系数的事实。这种大的阻尼系数可能导致不希望的下垂特性。在这封信中,我们使用阻尼扭矩分析来揭示SGS的阻尼机构,并表明阻尼效果实际上来自聚合为动态阻抗的瞬态/亚旋转抵抗的动态。基于这一发现,我们通过使用动态虚拟阻抗(DVI)来详细阐述如何在VSM中摆脱大量阻尼系数以模拟SG的阻尼机构。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号