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Input Current Balancing Control Method under Imbalanced Load for Three-phase Multi-port Converter based on Modular Multilevel Converter

Abstract

This paper proposes a balancing control method for imbalanced load in multi-port converter based on a modular multilevel converter (MMC) topology. In the multi-port converter with imbalanced loads, the three-phase current is balanced by dividing voltage among the cells. However, the multi-port converter has a limitation of the compensation capability for the imbalanced load. This paper clarifies the theoretical limitation with the proposed divided voltage method of the compensation capability of the imbalanced load. The proposed method is demonstrated by a 200-V, 17-kW laboratory system in order to show the validity of the proposed method. In spite of the load imbalance, balanced three-phase input current is achieved and DC link voltage error becomes 0.11%.

Category

Academic chapter

Language

English

Author(s)

  • Takumi Yasuda
  • Mitsuru Miyashita
  • Takahiro Kumagai
  • Keisuke Kusaka
  • Jun-Ichi Itoh
  • Giuseppe Guidi

Affiliation

  • SINTEF Energy Research / Energisystemer
  • Nagaoka University of Technology

Year

2020

Publisher

IEEE (Institute of Electrical and Electronics Engineers)

Book

2020 IEEE 9th International Power Electronics and Motion Control Conference - IPEMC2020-ECCE, Asia

ISBN

9781728153025

Page(s)

1278 - 1284

View this publication at Norwegian Research Information Repository