Fast Estimation of Phase and Frequency for Single Phase Grid Signal

Hafiz Ahmed, Sid-Ali Amamra, Ivan Salgado

    Research output: Contribution to journalArticlepeer-review

    45 Citations (Scopus)
    743 Downloads (Pure)


    Accurate and fast estimation of single-phase grid voltage phase and frequency has the potential to improve the performances of various control and monitoring techniques used in electric power systems. This letter applies an adaptive sliding mode observer for frequency and phase estimation. The observer is simple, easy to tune, and suitable for real-time implementation. The proposed adaptive observer can be considered as an alternative to a phase-locked loop (PLL) with better performance. dSPACE-based experimental results are given to show the effectiveness and performance improvement of the proposed approach with respect to two other advanced PLL techniques, namely, pseudolinear enhanced PLL and second-order generalized integrator-frequency locked loop.

    Original languageEnglish
    Article number8424190
    Pages (from-to)6408 - 6411
    Number of pages4
    JournalIEEE Transactions on Industrial Electronics
    Issue number8
    Early online date1 Aug 2018
    Publication statusPublished - Aug 2019


    • power system
    • Observer design
    • Parameter Estimation
    • Renewable energy
    • phase estimation
    • Adaptive observer
    • frequency estimation

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Control and Systems Engineering


    Dive into the research topics of 'Fast Estimation of Phase and Frequency for Single Phase Grid Signal'. Together they form a unique fingerprint.

    Cite this