SENSITIVITY-BASED REACTIVE POWER-CONTROL FOR VOLTAGE PROFILE IMPROVEMENT

This paper presents a procedure for dispatching reactive power when vo ltage deviations are not acceptable. The proposed method, intended for real-time use, determines which control variables are actually effect ive for solving voltage violations. Efficiency is measured according t o sensitivities, current voltage profile and reserve margin of control variables. The selected control variables are rescheduled in proporti on to their efficiency coefficients. State-of-the-art sparsity techniq ues are used to speed-up computation of sensitivities. An example is i ncluded to show effectiveness of the method.