Load flow analysis, also known as power flow analysis, is a fundamental tool used in power systems analysis to evaluate the steady-state operating characteristics of a power network.
The buses are divided into the following three groups according to the quantities specified: 1. Load Bus 2. Generator Bus 3. Slack Bus
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The slack or swing bus has the voltage magnitude, V, and phase angle, θ, specified. These values are essential for maintaining system stability and calculating power flows accurately.
The slack or swing bus absorbs system losses and maintains power balance.