Response of Low Voltage Networks with High Penetration of Photovoltaic Systems to Transmission Network Faults

2014 ◽  
Author(s):  
K. Skaloumpakas ◽  
J.C. Boemer ◽  
E. van Ruitenbeek ◽  
M. Gibescu ◽  
M.A.M.M. van der Meijden
Keyword(s):  
Low Voltage ◽  
Photovoltaic Systems ◽  
Transmission Network ◽  
High Penetration

scholarly journals Rooftop Photovoltaic-Battery Systems to Mitigate Overvoltage and Under Voltage in a Residential Low Voltage Distribution System

2020 ◽  
Vol 190 ◽  
pp. 00028
Author(s):  
Praphawadee Charoenwattana ◽  
Umarin Sangpanich
Keyword(s):  
Energy Storage ◽  
Distribution System ◽  
Low Voltage ◽  
Storage Systems ◽  
Peak Time ◽  
Photovoltaic Systems ◽  
Voltage Distribution ◽  
Energy Storage Systems ◽  
High Penetration ◽  
Battery Systems

High penetration of rooftop photovoltaic systems in a residential low voltage distribution system has to be controlled in order to maintain stable voltage condition. Energy storage systems, such as batteries, can be used to absorb excess energy of photovoltaic systems and to shave peak load during on-peak time. This paper proposes guiding principles for the incorporation of energy storage systems into a residential low voltage distribution system with high penetration of rooftop photovoltaic systems. Real residential distribution system circuits and all parameters from the Geographic Information System database of the Provincial Electricity Authority in Thailand were used for simulation analysis to study the application of energy storage systems for regulating voltage in a range of the nominal voltage by 10 %. Solar radiation data from the PVGIS were used. The voltage results were simulated by using the DIgSILENT Power Factory program. Based on the simulation, it was found that the overvoltage and under voltage protection and energy loss reduction could be achieved by (i) installing small battery systems in households and (ii) installing battery stations within the vicinity of the transformer or the weakest point of the circuit.

Reduction of the Low Voltage Substation Constraints by Inserting Photovoltaic Systems in Underserved Areas

2019 ◽  
Vol 12 (2) ◽  
pp. 105-112
Author(s):  
Benbouza Naima ◽  
Benfarhi Louiza ◽  
Azoui Boubekeur
Keyword(s):  
Low Voltage ◽  
Voltage Drop ◽  
Electrical Energy ◽  
Utilization Rate ◽  
Photovoltaic Systems ◽  
Voltage Distribution ◽  
Medium Voltage ◽  
Pv Systems ◽  
Transformer Substation ◽  
Load Pattern

Background: The improvement of the voltage in power lines and the respect of the low voltage distribution transformer substations constraints (Transformer utilization rate and Voltage drop) are possible by several means: reinforcement of conductor sections, installation of new MV / LV substations (Medium Voltage (MV), Low Voltage (LV)), etc. Methods: Connection of mini-photovoltaic systems (PV) to the network, or to consumers in underserved areas, is a well-adopted solution to solve the problem of voltage drop and lighten the substation transformer, and at the same time provide clean electrical energy. PV systems can therefore contribute to this solution since they produce energy at the deficit site. Results: This paper presents the improvement of transformer substation constraints, supplying an end of low voltage electrical line, by inserting photovoltaic systems at underserved subscribers. Conclusion: This study is applied to a typical load pattern, specified to the consumers region.

Voltage and var control to enable high penetration of distributed photovoltaic systems

2012 ◽  
Author(s):  
Yuan Liao ◽  
Wen Fan ◽  
Aaron Cramer ◽  
Paul Dolloff ◽  
Zongming Fei ◽  
...  
Keyword(s):  
Photovoltaic Systems ◽  
High Penetration

Harmonic Analysis of a Photovoltaic Systems Connected to Low Voltage Grid

2018 ◽  
Vol 16 (1) ◽  
pp. 112-117 ◽  
Author(s):  
M.C.C. Leite ◽  
F.A.M. Vieira ◽  
V.B. Silva ◽  
M.Z. Fortes ◽  
D.H.N. Dias
Keyword(s):  
Harmonic Analysis ◽  
Low Voltage ◽  
Photovoltaic Systems
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