Performance Study of Load Flow Algorithms in Well and Ill-Conditioned Systems

Existing transmission systems are classified as either ill systems or healthy systems. Most of the load flow algorithms works proficiently under well-conditioned systems. However, some of those algorithms fail to produce the accurate results for ill-conditioned systems. This paper investigates the p...

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Bibliographic Details
Main Authors: Tien Tay, Lea (Author), Seng Chieng, Kai (Author)
Format: EJournal Article
Published: Institute of Advanced Engineering and Science, 2017-11-01.
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Summary:Existing transmission systems are classified as either ill systems or healthy systems. Most of the load flow algorithms works proficiently under well-conditioned systems. However, some of those algorithms fail to produce the accurate results for ill-conditioned systems. This paper investigates the performance of eight load flow algorithms based on the conventional Newton-Raphson, Fast-decoupled and Second-order Load Flow methods for a wide range of electrical bus system sizes. Tests are carried out for each load flow algorithm on six different standard bus systems, each with five different ill-conditioning levels. The results show that improved load flow model with constant Jacobian has advantages over the conventional load flow approach in both well and ill-conditioned system, especially for large-scale system.
Item Description:https://ijeecs.iaescore.com/index.php/IJEECS/article/view/9949