Answer Happy

QUESTION TWO Figure 1 shows a small power system. It is desired to carry out a load flow on this system using the Newton-Raphson algorithm. As a starting point you are required to do the following: (a) Determine the bus admittance matrix. is [6 marks] (b) Set-up the equations in the form AŪ" = JAX, where AŬ is the power mismatch vector, ј the Jacobean matrix, and AX is the vector containing the voltage magnitude and angle errors. [4 marks] (c) To simplify the procedure, you have to do a decoupled power flow analysis. Rewrite the matrix equation of (b) in de-coupled form. [4 marks] (d) Justify the use of de-coupled power flow analysis. [1 mark] Sp2=(0.5+j0.02)p. Vi=1 L 0°p.u 2. j0.5p.u. j1.0p.u. j0.5p.u. 11.0p.u. 3 IV3l=1.05p.u P63=0.1 4 Sp4=(0.4+j0.05)p.u. Figure 1 Small power system 3