IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v10y2017i10p1514-d113625.html
   My bibliography  Save this article

Seamless Grid Synchronization of a Proportional+Resonant Control-Based Voltage Controller Considering Non-Linear Loads under Islanded Mode

Author

Listed:
  • Kyungbae Lim

    (School of Electrical Engineering, Chungbuk National University, Chungbuk 28644, Korea)

  • Jaeho Choi

    (School of Electrical Engineering, Chungbuk National University, Chungbuk 28644, Korea)

Abstract

This paper proposes the grid synchronization method of inverter using a quasi Proportional+Multi Resonant (P+MR) control-based voltage controller a stationary reference frame. The inverter supplies a non-linear load under the islanded mode. In islanded mode, the inverter is defined as a voltage source to supply the full local load demand without a connection to the grid. On the other hand, if the grid is restored from a previous fault or the strategic islanding is unnecessary, the inverter needs to be synchronized with the phase of the grid before the transfer from islanded mode to grid-connected mode. When the system is modeled and controlled based on the stationary reference frame control, the AC reference voltage, which has a constant voltage and frequency in islanded mode, is substituted to the AC grid voltage. Significant error can occur due to the large phase differences between the phase of reference and that of the measured value. This error also can cause severe voltage dynamic problems. In addition, if any nonlinear local load is connected to the output of the inverter, it becomes more serious due to the harmonics generated from the loads. In this paper, the PR control under a stationary reference frame is used for voltage control under islanded mode considering the harmonic effects from the nonlinear load. The seamless grid synchronization method based on this PR control is proposed to solve the aforementioned problems. The validity of the proposed seamless grid synchronization method is verified through PSiM simulations and experimental results.

Suggested Citation

  • Kyungbae Lim & Jaeho Choi, 2017. "Seamless Grid Synchronization of a Proportional+Resonant Control-Based Voltage Controller Considering Non-Linear Loads under Islanded Mode," Energies, MDPI, vol. 10(10), pages 1-22, September.
  • Handle: RePEc:gam:jeners:v:10:y:2017:i:10:p:1514-:d:113625
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/10/10/1514/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/10/10/1514/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Mukul Chankaya & Ikhlaq Hussain & Aijaz Ahmad & Irfan Khan & S.M. Muyeen, 2021. "Nyström Minimum Kernel Risk-Sensitive Loss Based Seamless Control of Grid-Tied PV-Hybrid Energy Storage System," Energies, MDPI, vol. 14(5), pages 1-22, March.
    2. Jae-Uk Lim & Il-seob Kwon & Hag-Wone Kim & Kwan-Yuhl Cho, 2019. "Seamless Transfer Algorithm of AC Microgrid Inverter Compensating Load Current for Weak Grid," Energies, MDPI, vol. 12(4), pages 1-15, February.

    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:10:y:2017:i:10:p:1514-:d:113625. 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.