Sensitivity Analysis for Neutral Reactor Optimization

This paper presents an approach for choosing neutral reactors in transmission lines (TL) with shunt compensation. Data from the Brazilian Power Grid were used for digital simulations with ATPDraw, and a sensitivity analysis was carried out with various parameters (line length, neutral reactor, fault location) to find curves that correlate the optimum reactor value with the transmission line shunt compensation level. The influence of line length and compensation level are discussed. Limitations are presented, and the results show that the approach allows reactors to be obtained efficiently for most of the compensation range.