New “full-bridge buck inverter–DC motor” system: Steady-state and dynamic analysis and experimental validation

Eduardo Hernández-Márquez, Carlos Alejandro Avila-Rea, José Rafael García-Sánchez, Ramón Silva-Ortigoza, Magdalena Marciano-Melchor, Mariana Marcelino-Aranda, Alfredo Roldán-Caballero, Celso Márquez-Sánchez

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A mathematical model of a new “full-bridge Buck inverter–DC motor” system is developed and experimentally validated. First, using circuit theory and the mathematical model of a DC motor, the dynamic behavior of the system under study is deduced. Later, the steady-state, stability, controllability, and flatness properties of the deduced model are described. The flatness property, associated with the mathematical model, is then exploited so that all system variables and the input can be differentially parameterized in terms of the flat output, which is determined by the angular velocity. Then, when a desired trajectory is proposed for the flat output, the input signal is calculated offline and is introduced into the system. In consequence, the validation of the mathematical model for constant and time-varying duty cycles is possible. Such a validation of this mathematical model is tackled from two directions: (1) by circuit simulation through the SimPowerSystems toolbox of Matlab-Simulink and (2) via a prototype of the system built by using Matlab-Simulink and a DS1104 board. The good similarities between the circuit simulation and the experimental results allow satisfactorily validating the mathematical model.

Original languageEnglish
Article number1216
Pages (from-to)1218
Number of pages1
JournalElectronics (Switzerland)
Volume8
Issue number11
DOIs
StatePublished - 1 Jan 2019

Keywords

  • Circuit simulation
  • DC motor
  • Differential flatness
  • Experimental validation
  • Full-bridge Buck inverter
  • Mathematical model
  • Motor drives
  • Power converters
  • Time-varying duty cycle

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