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标题:Implementation and Test of an Online Embedded Grid Impedance Estimation Technique for PV Inverters
时间:2019-10-23 17:51:50
DOI:10.1109/TIE.2005.851604
大小:846 kb
页数:10 PAGES
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目录:
  • toc
    • Implementation and Test of an Online Embedded Grid Impedance Est
    • Lucian Asiminoaei, Student Member, IEEE, Remus Teodorescu, Senio
      • I. I NTRODUCTION
      • II. I MPEDANCE M EASUREMENT T ECHNIQUES
    • Fig.€1. PV inverter to grid connection with impedance measuring.
      • A. Transient Active Methods
      • B. Steady-State Active Methods
    • Fig.€2. Diagram of converter to grid connection considering the
      • III. P RINCIPLE OF O PERATION
    • Fig.€3. Implementation of grid impedance estimation.
      • IV. I MPLEMENTATION
        • Fig.€4. System diagram of the PV inverter with implementation of
        • A. Frequency of the Harmonic Injection
          • TABLE€I M EASUREMENT OF B ACKGROUND D ISTORTION W ITH PV I NVER
          • Fig.€5. Comparison of measured and offline calculated spectrum o
        • B. Vector versus Scalar DFT Calculation
        • Fig.€6. DFT implementation using a running-sum approach.
        • Fig.€7. Comparison of vector and running-sum approaches in DFT.
        • C. Synchronization of the DFT and Harmonic Injection
        • D. Noncontinuous Harmonic Injection
    • Fig.€8. Method of noncontinuous current injection of the harmoni
      • E. Amplitude of the Harmonic Injection
        • TABLE€II E VALUATION OF I MPEDANCE M EASUREMENTS W ITH D IFFERE
      • F. Windowing Function
      • G. Invariance of Running Sums for the Current Signal
      • H. Averaging the Final Result
      • I. Effect of the PV Inverter Current Variation
      • V. E XPERIMENTAL R ESULTS
    • Fig.€9. Impedance estimation when the PV inverter current change
    • TABLE€III G RID P ARAMETER V ALUES M ANUALLY M EASURED BY UNILA
    • TABLE€IV P ARAMETER V ALUES U SED FOR THE A CTUAL E XPERIMENTAL
    • Fig.€10. Experimental setup for testing a grid impedance change.
    • Fig.€11. Dynamic response of the ENS method detecting a 0.5- $\O
    • TABLE€V ENS M EASUREMENTS W ITH D IFFERENT I NITIAL G RID I MPE
      • VI. C ONCLUSION
      • F. Blaabjerg, Z. Chen, and S. B. Kjaer, Power electronics as eff
    • Photovoltaic Semiconductor Converters Part 1: Utility Interactiv
      • L. Asiminoaei, R. Teodorescu, F. Blaabjerg, and U. Borup, A new
      • Z. Staroszczyk, Problems in real-time wide band identification o
      • M. B. Harris, A. W. Kelley, J. P. Rhode, and M. E. Baran, Instru
      • J. P. Rhode, A. W. Kelley, and M. E. Baran, Complete characteriz
      • L. S. Czarnecki and Z. Staroszczyk, On-line measurement of equiv
      • B. Palethorpe, M. Sumner, and D. W. P. Thomas, System impedance
      • Z. Staroszczyk and A. Josko, Real-time power system linear model
      • M. Liserre, R. Teodorescu, and F. Blaabjerg, Stability of grid-c
      • K. O. H. Pedersen, A. H. Nielsen, and N. K. Poulsen, Short-circu
      • B. Palethorpe, M. Sumner, and D. W. P. Thomas, Power system impe
      • K. Matsui, N. Ishigure, and F. Ueda, On-line impedance meter to
      • K. Klaus-Wilhelm, Process and Device for Impedance Measuring in
      • U. Borup, Design and control of a ground power unit, Ph.D. disse
      • N. Ishigure, K. Matsui, and F. Ueda, Development of an on-line i
      • J. Arrillaga, N. R. Watson, and S. Chen, Power System Quality As
    • Electromagnetic Compatibility (EMC) Part 4 7: Testing and Measur

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