Generalized Proportional Integral Tracking Controller for a Single-Phase Multilevel Cascade Inverter: An FPGA Implementation

Author

Juarez-Abad, Jose Antonio ; Linares-Flores, Jesus ; Guzman-Ramirez, Enrique ; Sira-Ramirez, Hebertt

Author_Institution

Div. de Estudios de Postgrado, Univ. Tecnol. de la Mixteca, Huajuapan, Mexico

Volume

10

Issue

1

fYear

2014

fDate

Feb. 2014

Firstpage

256

Lastpage

266

Abstract

This paper presents a robust linear generalized proportional integral (GPI) control scheme for the output reference trajectory tracking task on a multilevel single-phase “buck” inverter. The scheme is shown to be robust with respect to arbitrary time-varying load current demands, acting as perturbation inputs to the inverter, and to significant converter parameter variations. The discrete time version of the control scheme is implemented on a field-programmable gate array hardware. Several laboratory robustness tests are performed on the controlled inverter with excellent results.

Keywords

PI control; discrete time systems; field programmable gate arrays; invertors; perturbation techniques; robust control; trajectory control; FPGA implementation; arbitrary time-varying load current demands; converter parameter variations; discrete time version; field-programmable gate array hardware; generalized proportional integral tracking controller; multilevel single-phase buck inverter; output reference trajectory tracking task; robust linear GPI control scheme; robust linear generalized proportional integral control scheme; single-phase multilevel cascade inverter; Approximation methods; Field programmable gate arrays; Hardware; Inverters; Robustness; Switches; Field-programmable gate array (FPGA) implementation; Generalized proportional integral (GPI)-based controller; single-phase multilevel converter;

fLanguage

English

Journal_Title

Industrial Informatics, IEEE Transactions on

Publisher

ieee

ISSN

1551-3203

Type

jour

DOI

10.1109/TII.2013.2242085

Filename

6418025