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Harmonic Current Control in a High-Power Current Source Rectifier System.

机译:大功率电流源整流器系统中的谐波电流控制。

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摘要

Line current distortion is an important issue to a high-power current source rectifier (CSR) system. There are two main challenges related to this issue. First, the CSR input LC resonance can be affected by the variation of the source inductance from the power system and the effects of the CSR DC side circuit, which may lead to a line current distortion higher than expected. Another challenge is that the traditional high-power CSR using Selective Harmonic Elimination (SHE) pulse-width modulation (PWM) technique attempts to eliminate certain harmonics in the PWM current, which limits its ability for line current harmonic control. To control the CSR line current harmonics, this thesis focuses on two aspects: (1) the analysis and design of CSR input filter to avoid unexpected input LC resonance, and (2) the development of a new PWM scheme that can compensate the effects of the grid voltage harmonics and DC link current ripples. The thesis work has been validated by simulations and on an experimental CSR prototype.
机译:线电流失真是大功率电流源整流器(CSR)系统的重要问题。与这个问题有关的主要挑战有两个。首先,CSR输入LC谐振会受到来自电源系统的源电感变化以及CSR DC侧电路的影响,这可能会导致线路电流失真高于预期。另一个挑战是,使用选择性谐波消除(SHE)脉宽调制(PWM)技术的传统大功率CSR试图消除PWM电流中的某些谐波,这限制了其对线路电流谐波控制的能力。为了控制CSR线路电流谐波,本文着重于两个方面:(1)为避免输入LC意外谐振而对CSR输入滤波器进行分析和设计,(2)开发一种可以补偿CSR影响的新型PWM方案。电网电压谐波和直流母线电流纹波。通过仿真和实验性CSR原型验证了论文工作。

著录项

  • 作者

    Zhou, Hua.;

  • 作者单位

    University of Alberta (Canada).;

  • 授予单位 University of Alberta (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.Sc.
  • 年度 2011
  • 页码 90 p.
  • 总页数 90
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 老年病学;
  • 关键词

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