Power-flow study: Difference between revisions

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{{Short description|Numerical analysis of electric power flow}}

In [[power engineering]], the '''power-flow study''', or '''load-flow study''', is a [[numerical analysis]] of the flow of electric power in an interconnected system. A power-flow study usually uses simplified notations such as a [[one-line diagram]] and [[per-unit system]], and focuses on various aspects of [[AC power]] parameters, such as voltages[[Voltage]], voltage angles, real power and reactive power. It analyzes the power systems in normal steady-state operation.

Power-flow or load-flow studies are important for planning future expansion of power systems as well as in determining the best operation of existing systems. The principal information obtained from the power-flow study is the magnitude and phase angle of the voltage at each [[busbar|bus]], and the real and reactive power flowing in each line.