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    Shunt Active Power Filter Based On Interleaved Buck Converter: Modelling and Control

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    AbhishekAnand
    This document summarizes a paper on modeling and controlling a shunt active power filter based on an interleaved buck converter topology. The power filter is used to mitigate harmonics in an AC distribution network. It employs a dual loop control scheme with voltage control of the DC link as the outer loop and current control using park transformations and hysteresis control in the inner loop. Simulation results are presented for compensating a non-ideal voltage source and an unbalanced nonlinear load, showing the source voltage, load current, and source current in each case. The interleaved buck converter is used to avoid shoot-through effects of traditional inverters.

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    Shunt Active Power Filter Based On Interleaved Buck Converter: Modelling and Control

    Uploaded by

    AbhishekAnand
    32 views6 pages
    This document summarizes a paper on modeling and controlling a shunt active power filter based on an interleaved buck converter topology. The power filter is used to mitigate harmonics in an AC distribution network. It employs a dual loop control scheme with voltage control of the DC link as the outer loop and current control using park transformations and hysteresis control in the inner loop. Simulation results are presented for compensating a non-ideal voltage source and an unbalanced nonlinear load, showing the source voltage, load current, and source current in each case. The interleaved buck converter is used to avoid shoot-through effects of traditional inverters.

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    This document summarizes a paper on modeling and controlling a shunt active power filter based on an interleaved buck converter topology. The power filter is used to mitigate harmonics in an AC distribution network. It employs a dual loop control scheme with voltage control of the DC link as the outer loop and current control using park transformations and hysteresis control in the inner loop. Simulation results are presented for compensating a non-ideal voltage source and an unbalanced nonlinear load, showing the source voltage, load current, and source current in each case. The interleaved buck converter is used to avoid shoot-through effects of traditional inverters.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    32 views6 pages

    Shunt Active Power Filter Based On Interleaved Buck Converter: Modelling and Control

    Uploaded by

    AbhishekAnand
    This document summarizes a paper on modeling and controlling a shunt active power filter based on an interleaved buck converter topology. The power filter is used to mitigate harmonics in an AC distribution network. It employs a dual loop control scheme with voltage control of the DC link as the outer loop and current control using park transformations and hysteresis control in the inner loop. Simulation results are presented for compensating a non-ideal voltage source and an unbalanced nonlinear load, showing the source voltage, load current, and source current in each case. The interleaved buck converter is used to avoid shoot-through effects of traditional inverters.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 6

    Shunt Active Power Filter based on Interleaved Buck Converter:

    Modelling and Control

    Durga Lokesh1, M Sai Durga2, N Sai Phani3, K Varalakshmi4


    1,2,3,4
    Department of Electrical and Electronics Engineering
    Aditya College of Engineering and Technology,
    Surampalem, Andhra Pradesh, India
    Email id: msdlokesh56@gmail.com1, saidurga517@gamil.com2, phanieee36@gmail.com3,
    vara1981@gmail.com4

    Abstract—This paper provides the modelling and control aspects of shunt active power filter
    based on interleaved buck converter. The shunt active power filter is used for mitigation of
    adverse effect of harmonics in an AC distribution network. Interleaved buck converter
    topology is used because it mitigates the shoot-through effect of classical inverter. P-Q
    control technique is used to provide compensating current. Specifically, the control scheme
    employs a dual loop design, with voltage mode control controlling the dc-link voltage control
    as the first loop. The current loop takes into account the load current and employs various
    transformations, such as park transformation and inverse park transformation, to accomplish
    this. The current is controlled through the use of hysteresis current control. PWM is used to
    provide switching pulses through the gate driver, which is a digital signal processor. It is
    possible to find the source voltage, load current, and source current of a non-ideal voltage
    source. As far as imbalanced nonlinear load is concerned, the voltage at the source, the
    current drawn by the load, and the current flowing through the source has been given.

    Index Terms—Modelling and Control; Shunt active power filter, P-Q control, Buck
    Converter.
    I. INTRODUCTION
    With rampant use of nonlinear loads such as motor loads, drive, and UPS the power quality
    of an AC transmission line deteriorates. Shunt active power filter is considered as an ideal
    technology to mitigate the problems regarding power quality in the transmission line. Shunt
    active power filter is one of the matured technologies which provides harmonic current
    compensation, reactive power compensation as well as neutral current compensation in an
    AC distribution network. A detailed summary of voltage and current harmonics in a utility
    AC distribution system has been reported in [1]. Harmonics is one of the unwanted entities
    which degrades the performance of the loads as well as decreases the efficiency of the
    system. The summary of the power quality standards has been discussed in [2]. There are
    different control techniques for shunt active power filter i.e. linear controller as well as
    nonlinear controller [3]. Adaptive controller is a form of nonlinear controller for shunt active
    power filter which is widely used for its better performance [4]. Basically, a voltage source
    inverter is connected in active power filter which may encounter shoot-through effect which
    can be eliminated by change of topologies.
    To overcome the effect of dead band, a 3-phase interleaved buck converter
    is used as topology and p-q control technique is used for the control purpose. The hybrid
    control scheme for single-phase shunt active power filter based on interleaved buck converter
    has been discussed in [5]. The hybrid controller for fuzzy based control scheme for shunt
    active power filter using interleaved buck converter has been discussed in [6]. Interleaved
    buck converter with PV system has been discussed in [7]. Optimal control scheme for shunt
    active power filter using interleaved buck converter has been discussed in [8]. This paper
    provides modelling and control scheme of active power filter with interleaved buck
    converter.

    II. PROBLEM FORMULATION


    Figure 1 provides the schematic diagram of active power filter with interleaved buck
    converter. 3-phase AC source is connected with a nonlinear load. Interleaved buck converter
    acts as an active power filter.

    Figure 1. Schematic Diagram of active power filter with interleaved Buck Converter
    Figure 2. Control Scheme of active power filter with interleaved buck converter
    Figure 2 provides the control scheme for active power filter with interleaved buck converter.
    The control scheme is a dual loop control where voltage mode control which controls the dc-
    link voltage control. The current loop considers the load current and uses different
    transformation such as park transformation and inverse park transformation. Hysteresis
    current control is used to control the current. PWM is used for providing switching pulses via
    the gate driver.

    III. SIMULATION RESULTS


    Figure 3 provides the simulation results in two different cases i.e. (a) non-ideal voltage source
    and (b) Unbalanced nonlinear load.
    In the case of non-ideal voltage source, the source voltage, load current and source current has
    been provided. In the case of unbalanced nonlinear load, the source voltage, load current and
    source current has been provided.
    (a)

    (b)
    Figure 3. (a) Non-ideal voltage source, (b) unbalanced nonlinear load
    IV. CONCLUSION
    This paper provides a systematic analysis and simulation results for shunt active power filter
    using interleaved buck converter. The interleaved buck converter removes the dead band
    effect which is predominant in other active power filter converter. P-q control theory has
    been used to control the interleaved buck converter. Simulation results have been provided to
    validate the theoretical aspects. There was discussion of the hybrid one-phase controlling
    system for the shunt active buck converter filter. The hybrid controller for the fuzzy control
    scheme for shunting active-power filters with a buck converter was discussed. The PV
    System Buck Converter Interleaved has been discussed. For shunt active buck converter
    power filters, optimum control method was discussed. In order to achieve this the current
    loop takes the load current into account and uses several transformations like park
    transformation and reverse park transformation. The current is controlled by using the current
    control of hysteresis. PWM serves as a digital signal processor to deliver the pulses of
    switching via the port driver.

    REFERENCES

    [1] M Etezadi-Amoli and T Florence. Voltage and current harmonic content of a utility
    system-a summary of 1120 test measurements. IEEE Transactions on Power
    Delivery, 5(3):1552{1557, 1990.

    [2] Robert D Henderson and Patrick J Rose. Harmonics: the effects on power quality and
    transformers. IEEE transactions on industry applications, 30(3):528{532, 1994.

    [3] Nassar Mendalek, Kamal Al-Haddad, Farhat Fnaiech, and Louis A Dessaint. Nonlinear
    control technique to enhance dynamic performance of a shunt active power
    filter. IEE Proceedings-Electric Power Applications, 150(4):373{379, 2003.

    [4] Chi-Seng Lam, Wai-Hei Choi, Man-Chung Wong, and Ying-Duo Han. Adaptive dclink
    voltage-controlled hybrid active power filters for reactive power compensation.
    IEEE Transactions on power electronics, 27(4):1758{1772, 2011.

    [5] S Echalih, Abdelmajid Abouloifa, Ibtissam Lachkar, Z Hekss, M Aourir, and Fouad Giri.
    Hybrid control of single phase shunt active power filter based on interleaved buck
    converter. In 2019 American Control Conference (ACC), pages 3636{3641.
    IEEE, 2019.

    [6] S Echalih, A Abouloifa, JM Janik, I Lachkar, Z Hekss, FZ Chaoui, and F Giri.Hybrid


    controller with fuzzy logic technique for three phase half bridge interleaved buck shunt
    active power filter. IFAC-PapersOnLine, 53(2):13418{13423, 2020.

    [7] P Narendra Babu, Prabhat Ranjan Bana, Ranga Babu Peesapati, and Gayadhar Panda. An
    interleaved buck converter based active power filter for photovoltaic energy application.
    In 2019 International Conference on Power Electronics Applications and Technology in
    Present Energy Scenario (PETPES), pages 1{6. IEEE,2019.
    [8] Zhong Chen and Miao Chen. Optimal control strategy of the interleaved buck cell based
    shunt active filter. In IECON 2012-38th Annual Conference on IEEE Industrial
    Electronics Society, pages 4457{4462. IEEE, 2012.

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