Modelling of a Micro Grid PV Rooftop System by PSCAD

Abstract

A Photovoltaic rooftop system is being grown up for producing electricity in Thailand. The technical study of PV rooftop system is required especially in term of power quality impact from PV rooftop system to the grid system. The aim of this paper is to construct the simulation models of a micro grid PV rooftop system by using the simulation software PSCAD. PSCAD has an advantage that the software provides a complete model of the PV rooftop system in an electromagnetic transient software environment. The modules of study include PV array, three-phase inverter, LC filter, transformer, load, and distribution network. The constructed model is simulated under the Provincial Electricity Authority (PEA) regulations.

Suppression of ferroresonance using passive memristor emulator

“…[2][3][4][5] Recently, voltage transformers of a microgrid consisting of photovoltaic (PV) grids and wind turbines are exposed to ferroresonance during switching and pole breakdowns. [6,7] The literature shows that the ferroresonance phenomena will exist with any kind of technology in power systems. The phenomenon is realized in terms of frequency as fundamental, subharmonic, quasiperiodic, and chaotic modes.…”