Title of article :
Effectiveness and Optimal Placement of Bidirectional Substations for Regenerative Braking Energy Recovery in Electrical Network of Metro System
Author/Authors :
Zolghadri, Mohammad Reza Department of Electrical Engineering - Sharif University of Technology, Tehran , Hosseini Pour, aala Department of Electrical Engineering - Science and Research Branch - Islamic Azad University, Tehran
Abstract :
Using bidirectional converters in Metro substations, regenerative braking
energy can be fed back to the AC grid to decrease the braking energy loss.
In this research the effectiveness of bidirectional rectifiers and their
placement are investigated. A case study is provided for determination of
optimal location and capacity of bidirectional rectifiers in 8 rectifier
substations for different traffic scenarios in a part of line 1 of the Tehran
Metro system. Particle swarm optimization (PSO) method is used for
selection of optimal traction substation for inverter placement. The results
of simulation and optimization by using the software built in MATLAB /
SIMULINK are presented. Simulation results confirm the effectiveness of
using bidirectional rectifiers as well as the optimization method.
Keywords :
Reversible substation , Regenerative braking energy , Bidirectional rectifiers , Energy savings , PSO algorithm
