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AI InsightEach case had less than 25 iterations and the maximum voltage magnitude, phase angle and system frequency error in all the cases studied were less than 0.01%, 0.1% and 0.001% respectively.
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Özet
A Review of State-of-the-Art Techniques for Power Flow Analysis (PFA) which are newly proposed is presented in this paper. However, some of the existing classical methods for the Power Flow Analysis such as Newton-Raphson method, Gauss-Seiadel method, and Fast Decoupled Power Flow Technique were also discussed so as to give a background and a wider view of the improvements recorded so far. From the findings, State-of-the-Art Techniques such as Particle Swamp Optimization Algorithm for optimal Power Flow Incorporating Wind Farms, Hybrid Firefly and Particle Swamp Optimization Algorithm, Mann Iteration Process Technique for III-Conditioned System, and Modified Gauss-Seidel (MGS) method have shown superiority over and above the existing classical methods when it comes to accuracy, convergence speed and overall efficiency. Particularly, there are two newly proposed methods for dc grids namely Direct Matrix–Current Application and Direct Matrix-Impedance Approximation methods that stand out as regards accuracy, convergence and computational speed which means they can be used in planning, optimization and analysis purposes. Furthermore, MGS was validated using a 6-bus system in 3 cases. Each case had less than 25 iterations and the maximum voltage magnitude, phase angle and system frequency error in all the cases studied were less than 0.01%, 0.1% and 0.001% respectively.
Abstract
A Review of State-of-the-Art Techniques for Power Flow Analysis (PFA) which are newly proposed is presented in this paper. However, some of the existing classical methods for the Power Flow Analysis such as Newton-Raphson method, Gauss-Seiadel method, and Fast Decoupled Power Flow Technique were also discussed so as to give a background and a wider view of the improvements recorded so far. From the findings, State-of-the-Art Techniques such as Particle Swamp Optimization Algorithm for optimal Power Flow Incorporating Wind Farms, Hybrid Firefly and Particle Swamp Optimization Algorithm, Mann Iteration Process Technique for III-Conditioned System, and Modified Gauss-Seidel (MGS) method have shown superiority over and above the existing classical methods when it comes to accuracy, convergence speed and overall efficiency. Particularly, there are two newly proposed methods for dc grids namely Direct Matrix–Current Application and Direct Matrix-Impedance Approximation methods that stand out as regards accuracy, convergence and computational speed which means they can be used in planning, optimization and analysis purposes. Furthermore, MGS was validated using a 6-bus system in 3 cases. Each case had less than 25 iterations and the maximum voltage magnitude, phase angle and system frequency error in all the cases studied were less than 0.01%, 0.1% and 0.001% respectively.