PSCAD simulation of grid-tied photovoltaic systems and Total Harmonic Distortion analysis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

53 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication2013 3rd International Conference on Electric Power and Energy Conversion Systems, EPECS 2013
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 3rd International Conference on Electric Power and Energy Conversion Systems, EPECS 2013 - Istanbul, Turkey
Duration: Oct 2 2013Oct 4 2013

Publication series

Name2013 3rd International Conference on Electric Power and Energy Conversion Systems, EPECS 2013

Conference

Conference2013 3rd International Conference on Electric Power and Energy Conversion Systems, EPECS 2013
Country/TerritoryTurkey
CityIstanbul
Period10/2/1310/4/13

Keywords

  • EMTDC
  • photovoltaic systems
  • power system harmonics
  • power system simulation
  • PSCAD
  • total harmonic distortion

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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