Load flow based on newton's method using norton eqivalent circuit for AC-DC multiterminal systems

SUMMARY Key Words: Load Flow, Bus, AC-DC systems. This study is six chapter, hi the first chapter, development of AC-DC systems as economical and technical is investigated. In the second chapter, AC load flow equation is obtained. Flow chart that is used to compute load flow is given. In this chapter, Newton-Rapson algorithm is explained. There is two rnethods to solve problem of load flow in AC-DC systems: Separated method and compound method. In the separated method, every one system is separately investigated and the algorithm ended as systems converged. In the compound method, equations of AC-DC systems is solved as combining. In the other words, equations of DC systems writing into Jacobean matrix that is used to solve AC load flow systems is solved. In this study this method is Used. In the third chapter, AC-DC systems is investigated. In the firth chapter, the equations that is used to form singular pole model in AC-DC systems is obtained. And the forming of Jacobean matrix is shown in the an example system. In the fifth chapter, practice of load flow based on Newton's method using Norton equivalent circuit for AC-DC multiterminal systems is shown. In the last chapter, advantages of this developed algorithm is explained. V11I