Improved Acquisition System for Sensored Vector Control through Frequency-Domain Multiplexing, Synchronous Sampling, and Differential Evolution

Raymundo Cordero García, Faete J.T. Filho, Joao Onofre Pereira Pinto, Walter Issamu Suemitsu, Brayan Sobral Da Fonseca, Angelo Darcy Molin Brun

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Frequency domain multiplexing (FDM) allows simplifying the data acquisition in vector control when the resolver is used as a position sensor. However, the crosstalk reduction in the demultiplexing process is still a difficult task. This article proposes an improvement of the FDM-based acquisition system through synchronous sampling and Differential Evolution (DE). The resolver signals and the PWM carrier are synchronized so that the resolver outputs are zero when the PWM carrier reaches its valleys. Thus, the fundamental component of the stator currents can be easily estimated from the signals sent to the acquisition system. These estimated current signals and an angle tracking observer (ATO) are used to estimate the angular position. DE and a discretized model of the ATO are applied in order to improve the angle estimation transient response and to reduce crosstalk. Conditions to apply the proposed multiplexing approach will be defined. Simulation and experimental results show that the proposed approach allows an accurate estimation of the current fundamental components and the angular position when FDM is used, with better performance respect to other approaches in the literature. This is the first time that a DE is used to tune an ATO.

Original languageEnglish
Article number9296351
Pages (from-to)7784-7792
Number of pages9
JournalIEEE Sensors Journal
Volume21
Issue number6
DOIs
StatePublished - Mar 15 2021
Externally publishedYes

Funding

Manuscript received October 6, 2020; accepted December 10, 2020. Date of publication December 16, 2020; date of current version February 17, 2021. This work was supported by the Federal University of Mato Grosso do Sul (UFMS). This article was presented at the Conference IEEE-SPEC 2018, Singapore, December 10–13, 2018. The associate editor coordinating the review of this article and approving it for publication was Prof. Octavian Postolache. (Corresponding author: Raymundo Cordero García.) Raymundo Cordero García, Joao Onofre Pereira Pinto, and Angelo Darcy Molin Brun are with the Department of Electrical Engineering, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil (e-mail: [email protected]).

Keywords

  • Acquisition system
  • crosstalk
  • differential evolution
  • frequency domain multiplexing
  • resolver sensor

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