[5-j10 Yous = -2+ j4 L-3+j6 For the simple power system, the bus admittance matrix is given by -2+ j4 3+j61 4.472116.57 6.714116.57% 4.472-63.43 2-j4 0+ jo 0 3-16 0 0+10 6.71263.43 11.182-63.43 4.474116.57 6.712116.57 169-17 a) For each bus i, specify the bus type and determine which of the variables V, 0, P, and Q are input data which are unknown. b) Write the required power flow equations to be used in the first iteration of the Newton-Raphson power flow method. c) Set up the linearized system of equations in a matrix form that are solved at each iteration of the Newton Raphson power flow method. V. - 1/0 Y-2-4 Y-3-6 P = -1.5 p.u. Q = +0.8 p.u. P-1.5 p.u. IVI= 1.1 p.u. O