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http://dx.doi.org/10.6113/TKPE.2010.15.3.226

An Improved Feed-Forward Controller for the Parallel Operation of a Single-Phase PWM Converter in High-Speed Trains  

Park, Byoung-Gun (한양대 대학원 전기공학과)
Hyun, Dong-Seok (한양대 전기제어생체공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.15, no.3, 2010 , pp. 226-234 More about this Journal
Abstract
This paper proposes an improved feed-forward controller that calculates the gain value by estimating the changed boost inductance in practical operating condition of transformer. The boost inductance is estimated by the measurement of input current and voltage. The estimated boost inductance is optimized by the least square method. The proposed feed-forward controller can be achieved the robust control through the gain value calculating the estimated boost inductance despite of the changed condition of transformer and can minimize the interference phenomenon by reducing the harmonics of input current. The validity of proposed technique is verified through the simulation and experiment.
Keywords
Boost inductance; Feed-forward controller; Interference phenomenon;
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