GATE 2015 EE – SET 1 – Question 42

Solution :

Power mis match vector :

Vector of the differences between the specified and calculated power injections at each bus .

pre – specified error tolerance  ⇒ 0.001 pu

so at b_{us} k

$$\Delta P_{k}$$= $$P_{k}^{spec} – P_{k}^{calc} $$

$$\Delta Q_{k}$$= $$Q_{k}^{spec} – Q_{k}^{calc} $$