Assessment of the Use of Fixed Load Models in PV Penetration Studies of Power Distribution Networks

Conference: NEIS 2019 - Conference on Sustainable Energy Supply and Energy Storage Systems
09/19/2019 - 09/20/2019 at Hamburg, Deutschland

Proceedings: NEIS 2019

Pages: 6Language: englishTyp: PDF

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Mukwekwe, Leonard; Carpanen, Rudiren P. (University of KwaZulu-Natal, Durban, South Africa)
Davidson, Innocent E. (Durban University of Technology, Durban, South Africa)

The seamless integration of PV systems to buildings has resulted in them being the primary renewable source in most micro-grids as this typifies load end generation at its best. However, as PV generation levels increase, the network experiences several negative impacts among which reverse power flow has been found to be most detrimental to power system equipment. In this work, simulation studies are used to predict the penetration levels at which these negative impacts occur, and test strategies proposed for their mitigation. These are therefore significant steps in the renewable energy integration planning process thus their accuracy is of great importance. This study proposes the use of time variant load models in PV penetration studies and compares the penetration levels attainable with them to those attainable with conventional fixed load models.