Email this article DigSALENT Model Base for the injection of Solar PV System with Grid Connected Network on 33/11kV Kubuwa network for Voltage Profile Improvement.
Abstract
This research has initiated a comprehensive exploration of the potential for integrating photovoltaic (PV) energy sources into the power distribution system to enhance reliability. The study aims to provide a critical and systematic analysis of a PV grid-connected system modeled for the 33/11 kV Karu network, which consists of a 22-bus system. The model was developed to reduce active power losses and improve the voltage profile of the network. A forward and backward sweep power-flow technique was used to analyze the network and assess its actual operating conditions. Active power losses and voltage deviations were simulated using DIgSILENT Power Factory, ensuring that all system conditions were satisfied. The total base-case power loss of the Karu 22-bus network prior to the integration of the PV system was 418.32 kW, with a minimum voltage of 0.8934 p.u. After the integration of the PV sources, the power loss was reduced to 315.48 kW, representing a 32.59% reduction in power loss while the minimum voltage improved to 0.9801 p.u.It can be concluded that the proposed method achieved a 32.59% reduction in power loss through the injection of PV at the Karu/Nyanya, Jikwoyi, and Karshi injection substations, compared to the initial base-case scenario without PV integration.
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