{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lecture5 - The Power Flow Solution l Most common and...

Info icon This preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Power Systems I The Power Flow Solution l Most common and important tool in power system analysis u also known as the “Load Flow” solution u used for planning and controlling a system u assumptions: balanced condition and single phase analysis l Problem: u determine the voltage magnitude and phase angle at each bus u determine the active and reactive power flow in each line u each bus has four state variables: n voltage magnitude n voltage phase angle n real power injection n reactive power injection
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Power Systems I The Power Flow Solution u Each bus has two of the four state variables defined or given l Types of buses: u Slack bus (swing bus) n voltage magnitude and angle are specified, reference bus n solution: active and reactive power injections u Regulated bus (generator bus, P-V bus) n models generation-station buses n real power and voltage magnitude are specified n solution: reactive power injection and voltage angle u Load bus (P-Q bus) n models load-center buses n active and reactive powers are specified (negative values for loads) n solution: voltage magnitude and angle
Image of page 2