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Reactive Power Management in 33/11kV Distribution Networks for Improved Performance: A Model-Based Approach

Wokoma, B. A., George, A. S., Ekpenyong, C. E.

Abstract


Reactive power management is essential for maintaining voltage stability, reducing losses, and improving power factor in distribution networks. This study presents a model-based approach to reactive power compensation in a typical Nigerian 33/11kV distribution network using MATLAB/SIMULINK. The model integrates load flow analysis, power factor correction, and harmonic compensation, offering a dynamic alternative to traditional simulation methods. The simulation results reveal that Total Harmonic Distortion (THD) increases as distribution line length decreases, with values of 0.759% for 0.005km and 0.578% for 1km. Higher KVA savings of 278.7KVA and 720.8KVA were observed for shorter and longer lines, respectively. Additionally, the study evaluates the cost implications of reactive power compensation, highlighting that while longer lines improve voltage profiles, they incur higher costs. The findings provide critical insights for power system operators in optimizing reactive power compensation strategies. This model-based approach enhances voltage stability, reduces system losses, and serves as a valuable tool for efficient power distribution network management.


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References


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