The Power Flow Equations

To do that, we will model the generation q1, q2, q3, and the loads, x1, x2, and x3, as power injections (a similar notion as a current injection). We will use the circuit symbol for current source, which is , to model these power injections (which makes sense because, as concluded in Section 3.0, we can treat real power just as we treat currents). ................
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