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Stability analysis and experimental validation of a control strategy for autonomous operation of distributed generation units

Bahrani, B ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1109/IPEC.2010.5543537
  3. Publisher: 2010
  4. Abstract:
  5. This paper presents stability analysis of a distributed generation (DG) controller [1], in an islanded mode, based on the Mapping Theorem and the Zero Exclusion Condition, and validates the results based on a laboratory scale experimental setup. The DG unit is interfaced to the host system through a voltage-sourced converter (VSC). The control strategy regulates the load voltage at the desired value in the islanded mode, despite uncertainties in the load parameters. The frequency of the island is controlled in an open loop manner by an internal oscillator. The experimental results show that the controller provides robust voltage control for a wide range of load parameters, and even maintains the voltage within the prescribed range during the start-up transients of a motor which is part of the island load
  6. Keywords:
  7. Uncertainty ; Autonomous operations ; Distributed generation (DG) ; Islanding operations ; Automobile exhibitions ; Controllers ; Electric potential ; Galerkin methods ; Power electronics ; Robust control ; Stability ; Voltage regulators ; Uncertainty analysis
  8. Source: 2010 International Power Electronics Conference - ECCE Asia -, IPEC 2010, 21 June 2010 through 24 June 2010 ; June , 2010 , Pages 464-471 ; 9781424453955 (ISBN)
  9. URL: http://ieeexplore.ieee.org/document/5543537