A Novel Active Stabilizer Method for DC/DC Power Converter Systems Feeding Constant Power Loads

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Resumé

Multi-converter DC power distribution systems are widely used in different applications such as electric vehicles, more electric aircraft, and modern ships. In these systems, addressing the instability problems induced by constant power loads (CPLs) due to their negative incremental impedance characteristic has become an interesting research topic. Hence, in this paper, firstly, the stability of a DC/DC buck power converter system loaded by a CPL is analyzed through the system’s state-space averaging model, and then, its stability conditions are identified. Afterward, in order to overcome the destabilizing effect caused by the CPL, implementation of a novel active stabilizer scheme is presented. Using the proposed stabilizer technique, which has a simple control structure with a more straightforward tuning of control parameters, the system stability is guaranteed without affecting the dynamic performance of the system. This result is achieved by insertion of a virtual series RC in parallel with the output LC filter capacitor for satisfying the system stability criterion. In addition, practical constraints such as weight saving and low power dissipation are preserved, which are critical factors for the embedded DC power distribution systems. The circuit physical meaning realized by the proposed active stabilizer scheme is analytically proved. Simulation results are also provided to verify the effectiveness of the presented stabilizer.
OriginalsprogEngelsk
TitelThe 28th International Symposium on Industrial Electronics (ISIE)
ForlagIEEE Press
Publikationsdato12 jun. 2019
StatusAccepteret/In press - 12 jun. 2019

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DC-DC converters
Stability criteria
Electric vehicles
System stability
Energy dissipation
Ships
Capacitors
Tuning
Aircraft
Networks (circuits)

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    Lorzadeh, O., Lorzadeh, I., N. Soltani, M., & Hajizadeh, A. (Accepteret/In press). A Novel Active Stabilizer Method for DC/DC Power Converter Systems Feeding Constant Power Loads. I The 28th International Symposium on Industrial Electronics (ISIE) IEEE Press.
    Lorzadeh, Omid ; Lorzadeh, Iman ; N. Soltani, Mohsen ; Hajizadeh, Amin. / A Novel Active Stabilizer Method for DC/DC Power Converter Systems Feeding Constant Power Loads. The 28th International Symposium on Industrial Electronics (ISIE). IEEE Press, 2019.
    @inproceedings{930de3ad3dbb49ed9cdfed8147ed46cc,
    title = "A Novel Active Stabilizer Method for DC/DC Power Converter Systems Feeding Constant Power Loads",
    abstract = "Multi-converter DC power distribution systems are widely used in different applications such as electric vehicles, more electric aircraft, and modern ships. In these systems, addressing the instability problems induced by constant power loads (CPLs) due to their negative incremental impedance characteristic has become an interesting research topic. Hence, in this paper, firstly, the stability of a DC/DC buck power converter system loaded by a CPL is analyzed through the system’s state-space averaging model, and then, its stability conditions are identified. Afterward, in order to overcome the destabilizing effect caused by the CPL, implementation of a novel active stabilizer scheme is presented. Using the proposed stabilizer technique, which has a simple control structure with a more straightforward tuning of control parameters, the system stability is guaranteed without affecting the dynamic performance of the system. This result is achieved by insertion of a virtual series RC in parallel with the output LC filter capacitor for satisfying the system stability criterion. In addition, practical constraints such as weight saving and low power dissipation are preserved, which are critical factors for the embedded DC power distribution systems. The circuit physical meaning realized by the proposed active stabilizer scheme is analytically proved. Simulation results are also provided to verify the effectiveness of the presented stabilizer.",
    keywords = "Constant power load (CPL), DC/DC buck converter, active stabilizer, virtual series RC.",
    author = "Omid Lorzadeh and Iman Lorzadeh and {N. Soltani}, Mohsen and Amin Hajizadeh",
    year = "2019",
    month = "6",
    day = "12",
    language = "English",
    booktitle = "The 28th International Symposium on Industrial Electronics (ISIE)",
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    Lorzadeh, O, Lorzadeh, I, N. Soltani, M & Hajizadeh, A 2019, A Novel Active Stabilizer Method for DC/DC Power Converter Systems Feeding Constant Power Loads. i The 28th International Symposium on Industrial Electronics (ISIE). IEEE Press.

    A Novel Active Stabilizer Method for DC/DC Power Converter Systems Feeding Constant Power Loads. / Lorzadeh, Omid; Lorzadeh, Iman ; N. Soltani, Mohsen; Hajizadeh, Amin.

    The 28th International Symposium on Industrial Electronics (ISIE). IEEE Press, 2019.

    Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

    TY - GEN

    T1 - A Novel Active Stabilizer Method for DC/DC Power Converter Systems Feeding Constant Power Loads

    AU - Lorzadeh, Omid

    AU - Lorzadeh, Iman

    AU - N. Soltani, Mohsen

    AU - Hajizadeh, Amin

    PY - 2019/6/12

    Y1 - 2019/6/12

    N2 - Multi-converter DC power distribution systems are widely used in different applications such as electric vehicles, more electric aircraft, and modern ships. In these systems, addressing the instability problems induced by constant power loads (CPLs) due to their negative incremental impedance characteristic has become an interesting research topic. Hence, in this paper, firstly, the stability of a DC/DC buck power converter system loaded by a CPL is analyzed through the system’s state-space averaging model, and then, its stability conditions are identified. Afterward, in order to overcome the destabilizing effect caused by the CPL, implementation of a novel active stabilizer scheme is presented. Using the proposed stabilizer technique, which has a simple control structure with a more straightforward tuning of control parameters, the system stability is guaranteed without affecting the dynamic performance of the system. This result is achieved by insertion of a virtual series RC in parallel with the output LC filter capacitor for satisfying the system stability criterion. In addition, practical constraints such as weight saving and low power dissipation are preserved, which are critical factors for the embedded DC power distribution systems. The circuit physical meaning realized by the proposed active stabilizer scheme is analytically proved. Simulation results are also provided to verify the effectiveness of the presented stabilizer.

    AB - Multi-converter DC power distribution systems are widely used in different applications such as electric vehicles, more electric aircraft, and modern ships. In these systems, addressing the instability problems induced by constant power loads (CPLs) due to their negative incremental impedance characteristic has become an interesting research topic. Hence, in this paper, firstly, the stability of a DC/DC buck power converter system loaded by a CPL is analyzed through the system’s state-space averaging model, and then, its stability conditions are identified. Afterward, in order to overcome the destabilizing effect caused by the CPL, implementation of a novel active stabilizer scheme is presented. Using the proposed stabilizer technique, which has a simple control structure with a more straightforward tuning of control parameters, the system stability is guaranteed without affecting the dynamic performance of the system. This result is achieved by insertion of a virtual series RC in parallel with the output LC filter capacitor for satisfying the system stability criterion. In addition, practical constraints such as weight saving and low power dissipation are preserved, which are critical factors for the embedded DC power distribution systems. The circuit physical meaning realized by the proposed active stabilizer scheme is analytically proved. Simulation results are also provided to verify the effectiveness of the presented stabilizer.

    KW - Constant power load (CPL), DC/DC buck converter, active stabilizer, virtual series RC.

    M3 - Article in proceeding

    BT - The 28th International Symposium on Industrial Electronics (ISIE)

    PB - IEEE Press

    ER -

    Lorzadeh O, Lorzadeh I, N. Soltani M, Hajizadeh A. A Novel Active Stabilizer Method for DC/DC Power Converter Systems Feeding Constant Power Loads. I The 28th International Symposium on Industrial Electronics (ISIE). IEEE Press. 2019