Implementation of Matrix Converter Based Unified Power Flow Controller (UPFC) for Power Flow Control in a Transmission Line

摘要

Investigation on performance of Unified Power Flow Controller (UPFC) in controlling the flow of power over transmission line by using different control techniques is presented in this study. Matrix Converters (MCs) capable of allowing the direct AC/AC power conversion without DC energy storage links; it is observed that the MC-based UPFC (MC-UPFC) controller reduces volume, cost and capacitor power losses with higher reliability. Genetic algorithm based solution applied to control the matrix converter switches in these converters. As a result, line active and reactive power could be directly controlled by selecting an appropriate matrix converter switching state guaranteeing good steady-state flow of power and dynamic responses. Performance of proposed technique is shown in simulation done in MATLAB. Results of genetic algorithm-SVPWM based UPFC are compared with neuro-fuzzy logic controller-SVPWM and PI controller-SVPWM based UPFC in terms of active and reactive power flows in the line.