Sliding Mode Control for Single-Phase Grid-Connected Voltage Source Inverter with L and LCL Filters
Moacyr A. G. de Brito,
Egon H. B. Dourado,
Leonardo P. Sampaio,
Sergio A. O. da Silva,
Raymundo C. Garcia
Affiliations
Moacyr A. G. de Brito
Electrical Engineering Department, Faculty of Engineering, Architecture and Urbanism and Geography, Federal University of Mato Grosso do Sul—UFMS, Campo Grande 79070-900, MS, Brazil
Egon H. B. Dourado
Electrical Engineering Department, Faculty of Engineering, Architecture and Urbanism and Geography, Federal University of Mato Grosso do Sul—UFMS, Campo Grande 79070-900, MS, Brazil
Leonardo P. Sampaio
Electrical Engineering Department, Federal Technological University of Paraná—UTFPR, Cornélio Procópio 86300-000, PR, Brazil
Sergio A. O. da Silva
Electrical Engineering Department, Federal Technological University of Paraná—UTFPR, Cornélio Procópio 86300-000, PR, Brazil
Raymundo C. Garcia
Electrical Engineering Department, Faculty of Engineering, Architecture and Urbanism and Geography, Federal University of Mato Grosso do Sul—UFMS, Campo Grande 79070-900, MS, Brazil
This paper presents an analysis of the sliding mode control (SMC) method applied to a single-phase grid-connected voltage source inverter (VSI) with L and LCL filters. First, simulation results were presented for the L filter, and then, after some adjustments, the same theory was applied to the LCL VSI with active damping. To improve the obtained results for the SMC control, we adopted the hyperbolic tangent function and the explicit establishment of the modulation index m in the mathematical procedure to help reduce the chattering phenomena; later on, the same function was replaced by the usage of a proportional plus resonant controller to continuously improve the control system responses.
