IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v18y2025i7p1674-d1621713.html
   My bibliography  Save this article

Input Power Quality Enhancement in Controlled Single-Phase AC to DC Converter

Author

Listed:
  • Naveed Ashraf

    (Department of Electrical Engineering, The University of Lahore, Lahore 54000, Pakistan)

  • Ghulam Abbas

    (Department of Electrical Engineering, The University of Lahore, Lahore 54000, Pakistan)

  • Tanveer Yazdan

    (Department of Electrical Engineering, The University of Lahore, Lahore 54000, Pakistan)

Abstract

Voltage-controlled AC to DC converters govern the load voltage as per requirement. They may be employed in numerous applications, including battery-charging systems, light dimming, and industrial speed drive systems. The voltage regulation is based on the delay angle control of the thyristors, which has a simple gate control mechanism. Still, their input currents are highly distorted due to the generation of low-order harmonics. Also, their output voltage can only be regulated in step-down mode. The total harmonic distortion (THD) of the input current depends on the relative value of the fundamental frequency components to their non-fundamental component. The power factor (PF) also depends on these values, as well as the phase displacement angle, which is controlled by the firing delay. The improvement in THD and PF can be enhanced by maintaining the sinusoidal characteristics of the input current as much as possible. The use of an AC filter may enhance these characteristics, but filtering the low-order harmonics is a big challenge. This research suggests a novel control and circuit of a single-phase rectifier that may ensure the sinusoidal characteristics of the input current with a dual polarity-controlled output voltage. Thus, it improves the THD and PF for any polarity of the output DC voltage. A practical test circuit is built for the validation of the analytical and computer simulation results.

Suggested Citation

  • Naveed Ashraf & Ghulam Abbas & Tanveer Yazdan, 2025. "Input Power Quality Enhancement in Controlled Single-Phase AC to DC Converter," Energies, MDPI, vol. 18(7), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:7:p:1674-:d:1621713
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/18/7/1674/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/18/7/1674/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:18:y:2025:i:7:p:1674-:d:1621713. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.