Current Distortion Rejection in PMSM Drives Using an Adaptive Super-Twisting Algorithm

Daniel Garduno, Jaime J. Rivas, Oscar Castillo, Ruben Ortega Gonzalez, Francisco Emilio Gutierrez

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Unavoidably, the controlsystem of any permanent magnet synchronous motor (PMSM) is subjected to perturbations, e.g., motor nonidealities and inverter nonlinearities. To reject these perturbations, a new super-twisting (ST) control variant, called speed adaptive super-twisting (S-AST) control, is proposed in this paper. In the S-AST control, a proportional-integral (PI) and a ST controllers are merged using an adaptive law that is based on the motor speed measurement. This is done to reduce the chattering problems that the standard ST control presents. In addition, a mathematical design for the S-AST control is proposed, where the relationship between the chattering amplitude, the switching frequency and the system perturbations is shown. The main contribution in this paper is the application of the S-AST controller to reduce the total harmonic distortion (THDi) of the PMSM currents. By comparing the S-AST control against PI control, the THDi is reduced from 9.9% to 1.27%, in simulation, and the THDi is reduced from 22.79% to 1.56%, experimentally. These results demonstrate how the S-AST control is an excellent alternative to improve the waveform of the PMSM currents.

Original languageEnglish
Pages (from-to)927-934
Number of pages8
JournalIEEE Transactions on Energy Conversion
Volume37
Issue number2
DOIs
StatePublished - 1 Jun 2022
Externally publishedYes

Keywords

  • AC motor drives
  • harmonic distortion
  • permanent magnet synchronous motors
  • sliding mode control.

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