scholarly journals Experimental study on voltage dependent reactive power control Q(V) by solar inverters in low-voltage networks

2013 ◽  
Author(s):  
P. Esslinger ◽  
R. Witzmann
Keyword(s):  
Experimental Study ◽  
Power Control ◽  
Reactive Power ◽  
Low Voltage ◽  
Reactive Power Control ◽  
Voltage Dependent

scholarly journals A Hybrid Reactive Power Control Method of Distributed Generation to Mitigate Voltage Rise in Low-Voltage Grid

Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 2078 ◽  
Author(s):  
Soo-Bin Kim ◽  
Seung-Ho Song
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Control Method ◽  
Low Voltage ◽  
Voltage Regulation ◽  
Active Power ◽  
Reactive Power Control ◽  
Voltage Rise ◽  
Distributed Generator ◽  
Network Losses

A high penetration of distributed generators, such as solar and wind power generators in low voltage network systems, impose voltage rise problems. Reactive power control of distributed generators can contribute to mitigating the voltage rise. In the existing reactive power control, reactive power was controlled using only one local variable, such as voltage at point of connection or the active power output of distributed generator. In case of PF(P) method, which provides certain power factors, depending on the active power of distributed generator, the voltage regulation ability is strong, but network losses are large. Q(V) method, which provides a certain amount of reactive power depending on the local voltage, has few network losses, but the voltage regulation ability is weak. In this paper, a reactive power control method that combines the PF(P) method and Q(V) method was proposed. The proposed method determines the reactive power output by using the active power of the distributed generator and local voltage variables together. The proposed method improves the voltage regulation ability of the reactive power control, while reducing the network losses, as compared to the existing method. The low voltage network system was modeled and simulated to evaluate the performance of the proposed method, in terms of voltage regulation ability and network losses, and the performance of the proposed method and the existing method were compared and analyzed.

scholarly journals Comparative study of reactive power control methods for photovoltaic inverters in low-voltage grids

2016 ◽  
Vol 10 (3) ◽  
pp. 310-318 ◽  
Author(s):  
Arash Momeneh ◽  
Miguel Castilla ◽  
Manel Velasco ◽  
Jaume Miret ◽  
Pau Martí
Keyword(s):  
Comparative Study ◽  
Power Control ◽  
Reactive Power ◽  
Low Voltage ◽  
Control Methods ◽  
Reactive Power Control
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