...
首页> 外文期刊>Journal of power electronics >Identification and Damping of Resonances in Inverter-based Microgrids
【24h】

Identification and Damping of Resonances in Inverter-based Microgrids

机译:基于逆变器的微电网的谐振识别与阻尼

获取原文
获取原文并翻译 | 示例
           

摘要

The application of shunt capacitor banks and underground cables typically induces resonance in power distribution systems. In this study, the propagation of resonance in a microgrid (MG) with inverter-based distributed generators (IBDGs) is investigated. If resonances are not properly damped, then the output current of the inverters may experience distortion via resonance propagation due to the adverse effect of resonances on MG power quality. This study presents a conceptual method for identifying resonances and related issues in multi-inverter systems. For this purpose, existing resonances are identified using modal impedance analysis. However, some resonances may be undetectable when this method is used. Thus, the resonances are investigated using the proposed method based on the frequency response of a closed-loop MG equivalent circuit. After analyzing resonance propagation in the MG, an effective virtual impedance damping method is used in the IBDG control system to damp the resonances. Results demonstrate the effectiveness of the proposed method in compensating for existing resonances.
机译:并联电容器组和地下电缆的应用通常会在配电系统中引起谐振。在这项研究中,研究了基于逆变器的分布式发电机(IBDG)在微电网(MG)中的共振传播。如果没有适当地抑制谐振,则由于谐振对MG电能质量的不利影响,逆变器的输出电流可能会通过谐振传播而发生失真。这项研究提出了一种用于识别多逆变器系统中的谐振和相关问题的概念方法。为此,使用模态阻抗分析来识别现有谐振。但是,使用此方法时可能无法检测到某些共振。因此,使用所提出的方法基于闭环MG等效电路的频率响应来研究谐振。在分析了MG中的共振传播之后,在IBDG控制系统中使用了一种有效的虚拟阻抗阻尼方法来衰减共振。结果证明了所提出的方法在补偿现有共振方面的有效性。

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