The paper deals with the experimental comparison of different phase locked loop (PLL) algorithms forsingle phase, grid tied, photovoltaic generation systems; in particular, this work analyzes the effects ofabnormal grid conditions on the output current and power control loops of a 250W micro-inverter unit,highlighting pros and cons of each PLL algorithm. The effectiveness of such algorithms has beenevaluated by means of experimental tests analyzing the micro inverter operations when the gridvoltage is affected by sags, dips, frequency variations and harmonic distortion. Harmonics rejectionand dynamic response of the control algorithm in these operating conditions has been highlighted. Inaddition the computational burden required by each algorithm has been evaluated.
The paper deals with the experimental comparison of different phase locked loop (PLL) algorithms forsingle phase, grid tied, photovoltaic generation systems; in particular, this work analyzes the effects ofabnormal grid conditions on the output current and power control loops of a 250W micro-inverter unit,highlighting pros and cons of each PLL algorithm. The effectiveness of such algorithms has beenevaluated by means of experimental tests analyzing the micro inverter operations when the gridvoltage is affected by sags, dips, frequency variations and harmonic distortion. Harmonics rejectionand dynamic response of the control algorithm in these operating conditions has been highlighted. Inaddition the computational burden required by each algorithm has been evaluated.
Performance comparison of phase looked loop algorithms applied to micro-inverters for distributed photovoltaic generation
SCELBA, GIACOMO;CACCIATO, MARIO
;SCARCELLA, Giuseppe;
2013-01-01
Abstract
The paper deals with the experimental comparison of different phase locked loop (PLL) algorithms forsingle phase, grid tied, photovoltaic generation systems; in particular, this work analyzes the effects ofabnormal grid conditions on the output current and power control loops of a 250W micro-inverter unit,highlighting pros and cons of each PLL algorithm. The effectiveness of such algorithms has beenevaluated by means of experimental tests analyzing the micro inverter operations when the gridvoltage is affected by sags, dips, frequency variations and harmonic distortion. Harmonics rejectionand dynamic response of the control algorithm in these operating conditions has been highlighted. Inaddition the computational burden required by each algorithm has been evaluated.| File | Dimensione | Formato | |
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Cacciato EPE2013 Performance comparison of PLL.pdf
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