Simulating The Effects Of Grid-Connected PV System In A Residential Area Using OpenDSS

Isa, Nur Aliah (2017) Simulating The Effects Of Grid-Connected PV System In A Residential Area Using OpenDSS. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The impact of high PV penetration into the grid, particularly at the distribution side has been extensively studied. However, most of the available research focuses on North American style systems. This project aims to investigate the effect of high PV penetration in a European-based distribution network, which is the electricity supply system Malaysia is based on. The scope for this work is limited to a residential distribution network. The modelling is done using OpenDSS. The network model used is the IEEE European Low Voltage Test Feeder which consists of 55 loads that represent a generic housing area. Each load point is then equipped with a 4 kW PV system that denotes the typical size of a PV system installation for one house. Next, PV output variability is represented by two sample days of actual irradiance variability obtained from PVSG Lab, FKE UTeM; one for clear day and another for a high variability day. The aspects analyzed were voltage unbalance, voltage rise and reverse power flow. One significant finding of this project is that voltage rise exceeds the standard of 1.05 pu during noon, when voltage at the load side is higher than the transformer secondary side. Besides that, the high variability irradiance has more impact than clear sky irradiance during reverse power flow as the fluctuation of high variability irradiance is fluctuate more often compared to clear sky irradiance.

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