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Chapter 28

Steady-State Transmission Lines and Power Flows

Transmission-Line Differential Equations
Transmission-Line Differential Equations
Consider a circuit representing a line section. The voltage and current are measured from the receiving end, with defined series impedance and shunt ...
Lossless Lines
Lossless Lines
Consider a lossless line with a purely imaginary propagation constant, resistive characteristic impedance, and established ABCD parameters. Its equivalent ...
Maximum Power Flow and Line Loadability
Maximum Power Flow and Line Loadability
The maximum power flow for lossy lines is derived using ABCD parameters in phasor form. The matrix relationship between the sending-end and receiving-end ...
The Power Flow Problem and Solution
The Power Flow Problem and Solution
The power flow problem calculates the voltage magnitude, phase angle, and real and reactive power flows in a balanced three-phase steady-state power ...
Control of Power Flow
Control of Power Flow
Controlling power flow requires managing components like generators' prime mover and excitation control, shunt capacitor banks, reactors, static var ...
Fast Decoupled and DC Powerflow
Fast Decoupled and DC Powerflow
Power system operations often face generator or transmission-line outages. Real-time contingency information helps anticipate problems and develop ...
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