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Inventi Impact - Power Electronics

Articles

  • Inventi:epe/66/14
    SYNCHRONOUS CURRENT COMPENSATOR FOR A SELF-BALANCED THREE-LEVEL NEUTRAL POINT CLAMPED INVERTER
    Remya Krishna, Deepak E Soman, Sasi K Kottayil, Mats Leijon

    This paper presents a synchronous current control method for a three-level neutral point clamped inverter. Synchronous reference frame control based on two decoupled proportional-integral (PI) controllers is used to control the current in direct and quadrature axes. A phase disposition pulse width modulation (PDPWM) method in regular symmetrical sampling is used for generating the inverter switching signals. To eliminate the harmonic content with no phase errors, two first-order low pass filters (LPFs) are used for the dq currents. The simulation of closed-loop control is done inMatlab/Simulink. The Vertex-5 field programmable gate array (FPGA) in Labview/CompactRio is used for the implementation of the control algorithm. The control and switch pulse generation are done in independent parallel loops. The synchronization of both loops is achieved by controlling the length of waiting time for each loop.The simulation results are validated with experiments. The results show that the control action is reliable and efficient for the load current control

    How to Cite this Article
    CC Compliant Citation: Remya Krishna, Deepak E. Soman, Sasi K. Kottayil, and Mats Leijon, “Synchronous Current Compensator for a Self-Balanced Three-Level Neutral Point Clamped Inverter,” Advances in Power Electronics, vol. 2014, Article ID 620607, 8 pages, 2014. doi:10.1155/2014/620607. Copyright © 2014 Remya Krishna et al. This article is distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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