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Stability analysis of a single-phase phase-locked loop for power systems applications

Seifi, S ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1109/ISSPA.2012.6310510
  3. Publisher: 2012
  4. Abstract:
  5. This paper presents the stability analysis for a single-phase phase-locked loop (PLL) for power systems applications. The dynamical equations of a previously presented single-phase PLL are systematically derived and linearized for design and stability analysis purposes. Based on the linearized model of the PLL, parameters of the loop filter and the PI controller are accurately determined. The main advantages of the PI controller are discussed as well as its design procedure. Moreover, it is shown that, unlike the conventional single-phase PLLs, the mentioned PLL does not suffer from double-frequency ripples. Simulations carried out in MATLAB and SIMULINK verify the performance of the PLL under various operational scenarios; features like frequency and magnitude tracking, noise immunity, and harmonic attenuation are observed
  6. Keywords:
  7. Design procedure ; Double frequency ; Dynamical equation ; Harmonic attenuation ; Linearized models ; Loop filter ; MATLAB and SIMULINK ; Noise immunity ; Operational scenario ; PI Controller ; Power systems application ; Stability analysis ; Information science ; Linearization ; MATLAB ; Signal processing ; Phase locked loops
  8. Source: 2012 11th International Conference on Information Science, Signal Processing and their Applications, ISSPA 2012, 2 July 2012 through 5 July 2012 ; 2012 , Pages 1383-1387 ; 9781467303828 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6310510