The Power Flow Equations

Let’s return to Fig. 3, repeated here for convenience: Fig. 3. Another fundamental relation for power flow F12 (learned by EE students in EE 303) is: (16) We will derive this equation later in the course. Here, θ1 and θ2 are the angles of the voltage phasors at buses 1 and 2 respectively. Recall that we applied some approximations to eq. (1). ................
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