TY - GEN
T1 - PSCAD simulation of grid-tied photovoltaic systems and Total Harmonic Distortion analysis
AU - Kalbat, Abdulrahman
PY - 2013
Y1 - 2013
N2 - With the increasing fears of the impacts of the high penetration rates of Photovoltaic (PV) systems, a technical study about their effects on the power quality metrics of the utility grid is required. Since such study requires a complete modeling of the PV system in an electromagnetic transient software environment, PSCAD was chosen. This paper investigates a grid-tied PV system that is prepared in PSCAD. The model consists of PV array, DC link capacitor, DC-DC buck converter, three phase six-pulse inverter, AC inductive filter, transformer and a utility grid equivalent model. The paper starts with investigating the tasks of the different blocks of the grid-tied PV system model. It also investigates the effect of variable atmospheric conditions (irradiation and temperature) on the performance of the different components in the model. DC-DC converter and inverter in this model use PWM and SPWM switching techniques, respectively. Finally, total harmonic distortion (THD) analysis on the inverter output current at PCC will be applied and the obtained THD values will be compared with the limits specified by the regulating standards such as IEEE Std 519-1992.
AB - With the increasing fears of the impacts of the high penetration rates of Photovoltaic (PV) systems, a technical study about their effects on the power quality metrics of the utility grid is required. Since such study requires a complete modeling of the PV system in an electromagnetic transient software environment, PSCAD was chosen. This paper investigates a grid-tied PV system that is prepared in PSCAD. The model consists of PV array, DC link capacitor, DC-DC buck converter, three phase six-pulse inverter, AC inductive filter, transformer and a utility grid equivalent model. The paper starts with investigating the tasks of the different blocks of the grid-tied PV system model. It also investigates the effect of variable atmospheric conditions (irradiation and temperature) on the performance of the different components in the model. DC-DC converter and inverter in this model use PWM and SPWM switching techniques, respectively. Finally, total harmonic distortion (THD) analysis on the inverter output current at PCC will be applied and the obtained THD values will be compared with the limits specified by the regulating standards such as IEEE Std 519-1992.
KW - EMTDC
KW - PSCAD
KW - photovoltaic systems
KW - power system harmonics
KW - power system simulation
KW - total harmonic distortion
UR - http://www.scopus.com/inward/record.url?scp=84893718351&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84893718351&partnerID=8YFLogxK
U2 - 10.1109/EPECS.2013.6713002
DO - 10.1109/EPECS.2013.6713002
M3 - Conference contribution
AN - SCOPUS:84893718351
SN - 9781479906888
T3 - 2013 3rd International Conference on Electric Power and Energy Conversion Systems, EPECS 2013
BT - 2013 3rd International Conference on Electric Power and Energy Conversion Systems, EPECS 2013
T2 - 2013 3rd International Conference on Electric Power and Energy Conversion Systems, EPECS 2013
Y2 - 2 October 2013 through 4 October 2013
ER -
