Power Quality Analysis of Electric Rail Traction System Utilizing Optimization Algorithm
Keywords:DC, AC, PSO, MATLAB
The electric traction system is the most efficient of all other traction systems such as steam systems and combustion engines. This work designs the 110KV/25KV electric traction system to driving induction motors in MATLAB/SIMULINK environment. The system comprises of the power converters both AC/DC and DC/AC for driving loads. To analyze quality issues in the system for three modes of operation that is acceleration, deceleration, and constant drive of the induction motor. And development of an AI optimization of the converters so as to improve the performance of the AC outputs in the system. So the algorithm chosen is PSO for controlling the quality issues to improve the performance of loads. The work has recognized an electric traction system at 110/25kv side of the operation. The model has been developed in MATLAB/SIMULINK environment for studying the quality issues in the system at the AC side as well as on the DC side in the operating modes, acceleration, constant drive, and deceleration. The power converters in the traction system in the first case were modeled with a conventional PI controller and then replaced by PSO optimizing control to reduce the quality issued in the second system. The distortion level of the voltage in all the three modes of operation was reduced as well as that of the current THD%. The DC bus of the traction system, 1950 volts, also saw a reduction in variation of its value with respect to time.
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