This paper is describing the recently introduced proportional-resonant (PR) controllers and their suitability for grid-connected converters current control. It is shown that the known shortcomings associated with PI controllers like steady-state error for single-phase converters and the need of decoupling for three-phase converters can be alleviated. Additionally, selective harmonic compensation is also possible with PR controllers. Suggested control-diagrams for three-phase grid converters and active filters are also presented. A practical application of PR current control for a photovoltaic (PV) inverter is also described.
Proportional-resonant controllers. A new breed of controllers suitable for grid-connected voltage-source converters / Teodorescu, Remus; Blaabjerg, Frede; Liserre, Marco. - STAMPA. - (2004), pp. 9-14. (Intervento presentato al convegno 9th International Conference on Optimization of Electrical and Electronic Equipment ,OPTIM’04 tenutosi a Braşov, Romania nel May 20-21, 2004).
Proportional-resonant controllers. A new breed of controllers suitable for grid-connected voltage-source converters
Liserre, Marco
2004-01-01
Abstract
This paper is describing the recently introduced proportional-resonant (PR) controllers and their suitability for grid-connected converters current control. It is shown that the known shortcomings associated with PI controllers like steady-state error for single-phase converters and the need of decoupling for three-phase converters can be alleviated. Additionally, selective harmonic compensation is also possible with PR controllers. Suggested control-diagrams for three-phase grid converters and active filters are also presented. A practical application of PR current control for a photovoltaic (PV) inverter is also described.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
