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Calculating the impedance profile of the AC network at a HVDC link via modulation of the inverter's firing angle signal.

机译:通过调制逆变器的触发角信号来计算HVDC链路上交流网络的阻抗曲线。

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摘要

Knowledge of the characteristics of the AC network impedance at a high voltage direct current (HVDC) link is of vital importance to the operation of the link. The purpose of this thesis was to develop a method to accurately determine the AC network impedance characteristics at a HVDC link. Impedance profiling was achieved by measuring the current entering the AC network and the voltage of the AC bus bar while modulating the HVDC inverter's firing angle signal. Specific impedance profiling techniques were tested using various network impedances and DC current orders. In addition, the ride-through capability of a HVDC link with a modulated firing angle was examined.; The AC network impedance at a HVDC link can be quickly identified over a wide frequency band via multiple frequency modulation of the converter's firing angle signal. The optimum time for impedance profiling is when the DC current order is set at a low value. (Abstract shortened by UMI.)
机译:了解高压直流(HVDC)链路上AC网络阻抗的特性对于链路的运行至关重要。本文的目的是开发一种可以准确确定高压直流输电线路交流网络阻抗特性的方法。通过在调制HVDC逆变器的触发角信号时测量进入AC网络的电流和AC母线的电压来实现阻抗分析。使用各种网络阻抗和直流电流阶数测试了特定的阻抗分析技术。此外,还检查了具有调制触发角的HVDC链路的穿越能力。通过转换器的触发角信号的多种频率调制,可以在很宽的频带上快速识别HVDC链路上的AC网络阻抗。阻抗分析的最佳时间是将直流电流阶数设置为较低的值。 (摘要由UMI缩短。)

著录项

  • 作者

    Smyrski, Robin Sue.;

  • 作者单位

    University of Manitoba (Canada).;

  • 授予单位 University of Manitoba (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.Sc.
  • 年度 2006
  • 页码 130 p.
  • 总页数 130
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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