Vector Form Implementation in Three-Phase Power Flow Analysis Based on Power Injection Rectangular Coordinate

Abstract

This paper aims to proposed a vector form implementation into three-phase power flow analysis. The developed algorithm is based on Newton-Raphson method with voltage is represented in rectangular coordinate. The Python programming language and its mathematical libraries are used in this works. Three-phase power flow analysis in vector form utilizes sparse matrix ordering algorithm, hence the elements of the coefficient correction matrix can be rearranged easily. This method was used to solve threephase power flow for balance or unbalance network in two actual distribution system feeders in Lampung, i.e. 119 nodes and 191 nodes. Comparison with traditional Newton-Raphson method (non-vector) shows the vector form is able to solve computation up to eight times faster than the non-vector.

Evaluasi Kinerja Komputasi Aliran Daya Tiga Fasa Memanfaatkan Teknologi Virtualisasi di Data Center Universitas Lampung

“…Pada penelitian sebelumnya, model komputasi aliran daya telah di implementasikan pada [5][6][7][8]. Berikut ini adalah persamaan kesetimbangan aliran daya (mismatch) tiga fasa dalam format vektor adalah sebagai berikut : Sehingga persamaan di mana , adalah daya kompleks tiga fasa yang dibangkitkan pada generator, ̅ , adalah matriks diagonal beban kompleks tiga fasa terjadwal, dan adalah injeksi daya kompleks tiga fasa.…”