PhotoVoltaic (PV) systems are widely spreading in distribution networks and their detailed models are required in power system simulation studies. Some components of PV systems present non-linear characteristics, that may introduce numerical instability problems during power system simulation. In particular, the model of the PV generator introduces a non-linear dependency of the injected current on the terminal voltage. The paper investigates the numerical instability problems caused by the PV generator model. To overcome such problems while keeping high computational efficiency of the simulation, a new representation of the PV generator model is proposed. It can be efficiently included into power system simulation based on EMTP and EMTDC and its validity is tested using PSCAD/EMTDC tool.
Photovoltaic generator modelling for power system simulation studies
DI FAZIO, Anna Rita;RUSSO, Mario
2011-01-01
Abstract
PhotoVoltaic (PV) systems are widely spreading in distribution networks and their detailed models are required in power system simulation studies. Some components of PV systems present non-linear characteristics, that may introduce numerical instability problems during power system simulation. In particular, the model of the PV generator introduces a non-linear dependency of the injected current on the terminal voltage. The paper investigates the numerical instability problems caused by the PV generator model. To overcome such problems while keeping high computational efficiency of the simulation, a new representation of the PV generator model is proposed. It can be efficiently included into power system simulation based on EMTP and EMTDC and its validity is tested using PSCAD/EMTDC tool.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
