Write a MATLAB program for the system of Example 2.5 such that the voltage magnitude of source 1 is changed from 75 percent to 100 percent of the given value in steps of 1 volt. The voltage magnitude of source 2 and the phase angles of the two sources is to be kept constant. Compute the complex power for each source and the line loss. Tabulate the reactive powers and plot Q1, Q2, and QL versus voltage
magnitude jV1j. From the results, show that the flow of reactive power along the interconnection is determined by the magnitude difference of the terminal voltages.