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This work deals with a simple algorithm to define the dc current reference of a CSI-UPQC aimed to reduce its losses. The proposal uses the mathematical model of the CSI-UPQC to demonstrate the relationship between the dc current level and the modulation amplitude of the series stage. With this concept, a straightforward algorithm is proposed to set the dc current level to keep the modulation index of the series stage in a preset range, allowing to reduce of the dc current level compared with the use of a fixed dc current level and, therefore, reducing the losses in the power valves and dc inductor. The mathematical analysis illustrates the proposal, and simulated results corroborate it.

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A Simple Control Algorithm to Reduce the DC Current Level in a CSI-UPQC

  • 会议论文

  • 发表日期：

    2025年

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  • P. E. Melín C.,
  • C. R. Baier F.,
  • E. E. Espinosa N.,
  • M. E. Reyes M.,
  • F. A. Hernandez C.,
  • J. R. Espinoza C.

摘要

This work deals with a simple algorithm to define the dc current reference of a CSI-UPQC aimed to reduce its losses. The proposal uses the mathematical model of the CSI-UPQC to demonstrate the relationship between the dc current level and the modulation amplitude of the series stage. With this concept, a straightforward algorithm is proposed to set the dc current level to keep the modulation index of the series stage in a preset range, allowing to reduce of the dc current level compared with the use of a fixed dc current level and, therefore, reducing the losses in the power valves and dc inductor. The mathematical analysis illustrates the proposal, and simulated results corroborate it.