Per-Unit Conversion and Power Flow Analysis of a Three-Phase Power System - Prof. Johnson , Study Guides, Projects, Research of Electrical and Electronics Engineering

Download Per-Unit Conversion and Power Flow Analysis of a Three-Phase Power System - Prof. Johnson and more Study Guides, Projects, Research Electrical and Electronics Engineering in PDF only on Docsity! ECE 4300/5950 ELECTRICAL POWER SYSTEMS SPRING 2009 PROJECT #4 DUE 04/13/09 The one-line diagram of a 5-bus three-phase power system is shown in Fig. 1. The machine, line, and transformer data are given in Table 1. Table 1(a) Generator Ratings Generator Power (MVA) Voltage (kV) G1 400 15.0 G2 800 15.0 The generator neutrals are solidly grounded Table 1(b) Bus Input Data Bus Type V (p.u.)  (o) P (p.u.) Q (p.u.) Bus 1 Swing/Slack 1.0 0 Unknown Unknown Bus 2 Load Unknown Unknown -8.0 -2.8 Bus 3 Constant Voltage 1.05 Unknown 4.4 Unknown Bus 4 Load Unknown Unknown 0 0 Bus 5 Load Unknown Unknown 0 0 1 400 MVA 15 KV 400 MVA 15/345 kV 280 MVAr L1 345 kV 80.47 km 2 3 345 kV 160.93 km 4 800 MW L2 5 800 MVA 15 kV 345 kV 160.93 km 80 MW G1 G2 Circuit Breaker L3 Fig. 1 Single-line Diagram of Three-phase Power System T1 T2 40 MVAr 400 MVA 345/15 kV