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Stabilization of mode in imbalanced operation of matrix converter by time‐delayed feedback control
Author(s) -
Sánchez Manuel,
Okuda Takafumi,
Hikihara Takashi
Publication year - 2018
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2556
Subject(s) - quasiperiodic function , control theory (sociology) , symmetry (geometry) , oscillation (cell signaling) , matrix (chemical analysis) , negative feedback , mode (computer interface) , sequence (biology) , physics , topology (electrical circuits) , positive feedback , control (management) , mathematics , computer science , engineering , voltage , materials science , quantum mechanics , condensed matter physics , chemistry , electrical engineering , biochemistry , geometry , artificial intelligence , composite material , operating system
Summary The symmetry breaking of the loads of a matrix converter (MC) generated an imbalance that induced a quasiperiodic behavior at the input side of the MC. In addition, the load imbalance generated a negative‐sequence current at the input side. This paper adopts the time‐delayed feedback control (TDFC) to attenuate the quasiperiodic oscillation and the negative‐sequence component caused by the symmetry breaking. The results indicate that the attenuation of the quasiperiodic behavior directly leads to a decrease of the negative‐sequence current component. As a result, the TDFC improves the operation of the MC under unbalanced loads and part of the periodic symmetry is regained at the input side.