Abstract
The interconnected transmission network of the Benin Electric Community (CEB) presents excessive losses that will increase further by 2025 and severely degrade the power quality supplying. This paper presents the quarto-criterion optimization of the positioning of a UPFC in the CEB's HTB network by U-NSGA III and DE. The positioning of an UPFC on line 3 and node 6 of this network has qualitatively improved the technical performance of this transmission network with an optimal installation cost of US $ 13126657.03. The hypervolumes of the two calculated methods showed that the U-NSGA-III is more accurate in terms of trend toward global solutions than DE. These convincing results confirm the performance of the U-NSGA-III method compared to the DE which also resulted in results close to those obtained by the U-NSGA-III with more or less narrow difference.
Highlights
The disintegration of the traditional electrical system associated with the strong environmental constraints that limit the construction of new power lines are driving transmission system operators to exploit existing transmission networks to their limits of stability
This table shows that the value of the space dominated by the U-Nondominated Sorting Genetic Algorithm (NSGA)-III is greater than that of the Differential Evolution (DE). This shows that the Pareto front obtained by the U-NSGAIII is better than that obtained by the DE
This paper presents the CEB’s network optimization through four criteria for the optimal choice and placement of an Unified Power Flow Controller (UPFC) in a transmission network by UNSGA-III and DE
Summary
The disintegration of the traditional electrical system associated with the strong environmental constraints that limit the construction of new power lines are driving transmission system operators to exploit existing transmission networks to their limits of stability. In this new context, the existing High Voltage Category B (HVB) installations are more and more solicited and involve enormous losses, risks of voltage instability and power capacity limits violation. Voltage instability will become more apparent because of the shortcomings related to voltage regulation [1] In this constraining context, the CEB will have to take several years to mobilize resources, to satisfy the conditions demanded by ecologists before the construction of new lines or power stations. The use of a Flexible Alternative Current Transmission (FACTS) and an Unified Power Flow Controller (UPFC) in International Journal of Electrical Components and Energy Conversion 2019; 5(1): 10-19 this network would be an economically and technically attractive alternative for solving the voltage instability and loss operating problems in this high voltage transmission network of CEB
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