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New multilevel carrier-based pulse width modulation techniques applied to a diode-clamped converter for use as a universal power conditioner.

机译:新的基于多级载波的脉宽调制技术已应用于二极管钳位转换器,用作通用功率调节器。

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摘要

This work presents the development of a control scheme for a multilevel diode-clamped converter connected in a series-parallel fashion to the electrical system such that it can compensate for deviations in utility voltage and act as a harmonic and/or reactive current source for a load. Novel carrier-based multilevel pulse width modulation techniques are developed to maximize and/or balance the switch utilization of the two back-to-back diode-clamped inverters that constitute the universal power conditioner. Methods for maximizing switch usage during low amplitude modulation index operating conditions are also identified.; The effects of different compensation objectives of a universal power conditioner on the ratings and level usage in the multilevel converter are also discussed. A procedure for sizing the multilevel inverter based on its specified functions is outlined. A real-time control scheme is developed for a complete universal multilevel power conditioner system.; Experimental verification of the real-time control scheme is implemented with a six-level hardware prototype for different power conditioning objectives: voltage regulation, voltage balancing, current harmonic compensation, and reactive power compensation.
机译:这项工作提出了一种以串联-并联方式连接到电气系统的多级二极管钳位转换器的控制方案的开发,这样它就可以补偿市电电压的偏差,并可以作为谐波和/或无功电流源。加载。开发了基于载波的新型多级脉冲宽度调制技术,以最大化和/或平衡构成通用功率调节器的两个背靠背二极管钳位逆变器的开关利用率。还确定了在低幅度调制指数操作条件下使开关使用最大化的方法。还讨论了通用功率调节器的不同补偿目标对多电平转换器中额定值和电平使用的影响。概述了根据其指定功能确定多电平逆变器大小的过程。为完整的通用多级功率调节器系统开发了实时控制方案。实时控制方案的实验验证是通过六级硬件原型实现的,以实现不同的功率调节目标:电压调节,电压平衡,电流谐波补偿和无功功率补偿。

著录项

  • 作者

    Tolbert, Leon Monroe.;

  • 作者单位

    Georgia Institute of Technology.;

  • 授予单位 Georgia Institute of Technology.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 1999
  • 页码 179 p.
  • 总页数 179
  • 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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