An optimization model for reactive power control of super high voltage grid systems using pseudo-inverse method

This paper develops an optimization model to control the excessive MVAr generation by super high voltage grid systems for maintaining the nodal voltages within the required acceptable margin. The model enhances an approximate solution on the condition of balanced real power. The pseudo-inverse method of optimization is implemented as an optimal means of solving nonsquare systems of equations based on Lagrange's theory of optimization. It recommends the locations and ratings of the minimum required reactors from the preinstalled ones to be in service for optimum nodal reactive power and voltage controls. The model had been tested on the Iraqi super high voltage grid system (400 kV), and it proved to be efficient in the obtained results and reliable in convergence.