POWER FLOW STUDY
Power flow analysis is widely used in power system operation and planning. The Load or Power flow model of a power system is built using the relevant network, load, and generation data. Outputs of the power flow model include voltages at different buses, line flows in the network, and system losses.
Also know as Load Flow study is a steady-state analysis whose target is to determine the voltages, currents, and real and reactive power flows in a system under a given load conditions.
Load flow analysis are one of the most important aspects of power system planning and operation. The load flow gives us the sinusoidal steady state of the entire system – voltages, real and reactive power generated and absorbed and line losses.
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Load Flow Analysis
Significance of load flow analysis in power system:
- We can obtain the voltage magnitudes and angles at each bus in the steady state. This is rather important as the magnitudes of the bus voltages are required to be held within a specified limit. Once the bus voltage magnitudes and their angles are computed using the load flow, the real and reactive power flow through each line can be computed.
- Also based on the difference between power flow in the sending and receiving ends, the losses in a particular line can also be computed.
- From the line flow we can also determine the over and under load conditions.
- The load flow study of a power system is essential to decide the best operation of existing system and for planning the future expansion of the system.
- It helps in designing a new power system network.
- It helps in System loss minimization and transformer tap setting for economic operation.
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