Journal of Power Electronics

  • 제13권3호
  • /
  • Pages.409-418
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  • 2013
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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Advanced Repetitive Controller to Improve the Voltage Characteristics of Distributed Generation with Nonlinear Loads

  • Trinh, Quoc-Nam (School of Electrical Engineering, University of Ulsan) ;
  • Lee, Hong-Hee (School of Electrical Engineering, University of Ulsan)
  • 투고 : 2012.09.21
  • 발행 : 2013.05.20
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초록

This paper presents an enhanced control strategy which consists of a proportional-integral controller and a repetitive controller (RC) for improving the voltage performance of distributed generation (DG) under nonlinear load conditions. The proposed voltage controller is able to maintain a sinusoidal voltage at the point of common coupling (PCC) of the DG regardless of the harmonic voltage drop in the system impedance due to nonlinear load currents. In addition, by employing the delay time of the RC at one-sixth of the fundamental period, the proposed RC can overcome the slow response drawback of the traditional PI-RC. The proposed control strategy is analyzed and the design of the RC is presented in detail. The feasibility of the proposed control strategy is verified through simulation and experimental results.

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참고문헌

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피인용 문헌

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  3. Application of a C-Type Filter Based LCFL Output Filter to Shunt Active Power Filters vol.13, pp.6, 2013, https://doi.org/10.6113/JPE.2013.13.6.1058
  4. An Enhanced Grid Current Compensator for Grid-Connected Distributed Generation Under Nonlinear Loads and Grid Voltage Distortions vol.61, pp.12, 2014, https://doi.org/10.1109/TIE.2014.2320218
  5. Versatile Shunt Hybrid Power Filter to Simultaneously Compensate Harmonic Currents and Reactive Power vol.10, pp.3, 2015, https://doi.org/10.5370/JEET.2015.10.3.1311
  6. Versatile UPQC Control System with a Modified Repetitive Controller under Nonlinear and Unbalanced Loads vol.15, pp.4, 2015, https://doi.org/10.6113/JPE.2015.15.4.1093
  7. An Enhanced Harmonic Voltage Compensator for General Loads in Stand-alone Distributed Generation Systems vol.13, pp.6, 2013, https://doi.org/10.6113/JPE.2013.13.6.1070