AN INNOVATIVE TOPOLOGY FOR HARMONICS AND UNBALANCE COMPENSATION IN ELECTRIC TRACTION SYSTEM USING DIRECT POWER CONTROL TECHNIQUE

Authors

  • Sushma V. Sangle PG Student, Department of Electrical Engineering, Fabtech College of Engineering and Research, Sangola, Maharashtra, India
  • Prof. CH. Malla Reddy Department of Electrical Engineering, Fabtech College of Engineering and Research, Sangola, Maharashtra, India

Keywords:

Active filters, harmonicsdistortion, power control,, rail transportation power system, Direct Power Compensator (DPC)

Abstract

Power quality problems in power systems have been improved due to nonlinear loads. To compensate theseproblems Direct Power Compensator was suggested in this paper. A Direct Power Compensator (DPC) is proposed in this paper to reduce the harmonic currents, compensate power factor and voltage unbalance problems generated by the nonlinear loads present in three phase systems. A DPC contains back to back converter by sharing the same dc link power and v/v transformer to provide a voltage balance in transmission line. Hysteresis harmonic current regulator is used to create pulse for back to back converter. A controller maintains the dc-link voltage and compensates the power factor, harmonic currents. A comparative analysis for traction system with and without DPC was performed using MATLAB Simulink. Simulation results show the controller advantages and the applicability of the proposed method in railway systems.

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Published

2021-03-27

Issue

2015: ICITDCEME

Section

Articles

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