The Reference Current Calculation with Instantaneous Power Theory for Power Quality Improvement in Electric Railway Systems
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Abstract
This paper presents the power quality improvement in electric railway systems using the instantaneous power theory (PQ) for calculating reference currents of active power filters (APF). The hardware in the loop (HIL) technique is applied to confirm the performance of proposed reference current calculation. The eZdsp™ F28335 board cooperates with the MATLAB/Simulink program for HIL simulation. The testing results indicated that the reference current calculation with the PQ theory for power quality improvement in electric railway systems can provide an excellent performance calculating reference currents of APF. Moreover, the performance index (%THDi %CUF and PF) after compensation can follow within the IEEE std.519-2014.
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