Minimization of series reactive power loss for the voltage instability problems

摘要

This paper introduces a method to find the location of series capacitors to minimize the total series reactive power loss (SRPL) of a power system. Since the increase in reactive power loss has been sued as an indicator for the voltage instability, a newly developed indicator dQ_loss_i-j/dK_s is introduced to calculate the decrease in SRPL as a result of series compensation. The proposed method is simulated on one- and two-area systems and the results are discussed and found to be consistent. The divergence of the power flow solution is taken to check the increase in load margin, when the resulting lines are compensated.