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Jean-Nicolas Paquin and Dave Turcotte, CanmetENERGY
CETC Number 2008-007 / 2008-01-08
Natural Resources Canada (NRCan) manages for Canada a co-ordinated research program to foster the advancement of renewable energy technologies and grid integrated systems in order that they become the preferred energy options on the basis of reliability, cost effectiveness and social and environmental advantages. The impact of grid integrations of distributed generation is assessed in the Impact of Large-Scale Integration of Distributed Generation (IMPACT) project, including the study of high penetration of photovoltaic in a residential sub-urban neighbourhood. This study will be presented in three successive reports on: 1) Inverter modeling, 2) Residential load modeling and 3) Simulation results.
The objective of the present report is to describe the modeling technique and results for the house load to be used in the PV neighbourhood power quality study. The models are developed using MATLAB®/Simulink® and its power systems simulation toolbox, SimPowerSystems (SPS).
Modeling a residential load is very difficult due to the wide distribution of appliances and users behaviours. Various approaches have been surveyed in the literature for the modeling of this type of load. The selected approach uses a dynamic load for the fundamental in parallel with a current source for harmonic generation. The harmonic content is derived from the Canadian Power Quality Survey (CPQS) data using curve-fitting of harmonic current data points from the 3rd to the 15th component.
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