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Author: search.filters.author.Kittiratsatcha, SupatSubject: search.filters.subject.Analytical model

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    Analysis of a switched-reluctance generator for maximum energy conversion
    (2017-01-01)
    Wongguokoon, Supakit
    ;
    Kittiratsatcha, Supat
    An effective analytical expression for maximum energy conversion in terms of DC-bus voltage, shaft speed, and turn-on and turn-off angles of a switched-reluctance generator (SRG) based on self-excitation mode and single-pulse operation is successfully presented. The proposed analytical model, which can describe the nonlinearity of the magnetic characteristics of an SRG with sufficient accuracy, is the key to derive the relation between maximum energy conversion and the aforementioned control variables. The optimal ratio of DC-bus voltage to shaft speed and excitation angle are proposed. Simulation and experimental results are provided to validate the analysis.
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    Optimal excitation angles of a switched reluctance generator for maximum output power
    (2014-01-01)
    Thongprasri, Pairote
    ;
    Kittiratsatcha, Supat
    This paper investigates the optimal values of turn-on and turn-off angles, and ratio of flux linkage at turn-off angle and peak phase current positions of optimal control for accomplishing maximum output power in an 8/6 Switched Reluctance Generator (8/6 SRG). Phase current waveform is analyzed to determine optimal excitation angles (optimal turn-on and turn-off angles) of the SRG for maximum output power which is applied from a nonlinear magnetization curve in terms of control variables (dc bus voltage, shaft speed, and excitation angles). The optimal excitation angles in single pulse mode of operation are proposed via the analytical model. Simulated and experimental results have verified the accuracy of the analytical model.
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    Analysis of a switched-reluctance generator for maximum energy conversion
    (2010-12-01)
    Wongguokoon, Supakit
    ;
    Kittiratsatcha, Supat
    A successful analytical expression for maximum energy conversion in terms of DC-bus voltage, shaft speed and turn on/off angles of a Switched Reluctance Generator (SRG) based on self-excitation mode, single pulse operation is presented. The proposed analytical model, which can describe nonlinear of the magnetic characteristics of a SRG with sufficient accuracy, is the key used to derive the relation of maximum energy conversion with those control variables. The optimal ratio of DC-bus voltage over shaft speed, and excitation angle are proposed. Simulation and experimental results are provided to validate the analysis.