Autonomous adaptive sensorless controller of inverter-based islanded-distributed generation system

Ahmed, Khaled H.K. and Finney, S.J. and Williams, B.W. and Massoud, A. (2009) Autonomous adaptive sensorless controller of inverter-based islanded-distributed generation system. IET Power Electronics, 2 (3). pp. 256-266. ISSN 1755-4543 (http://dx.doi.org/10.1049/iet-pel.2008.0029)

Abstract

A control method for inverter operation in an islanded-distributed generation system is presented. The controller provides sufficient active and reactive power to match the connected load, therein providing high power quality. Control in this mode is based on voltage and frequency droops. Detailed analysis, based on the concept of harmonic impedance, establishes the appropriateness of inductor current feedback against capacitor current feedback, with respect to inverter output power quality. Steepest descent adaptive control is embedded to estimate the output voltage for sensorless operation, which enhances system robustness and performance. To compensate the DSP calculation delay, a modified Kalman filter design is discussed. Simulation and experimental results demonstrate the validity of the proposed control method.

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• Item metadata

  Item type:	Article
  ID code:	14847
  Dates:	Date Event May 2009 Published
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering
  Depositing user:	Strathprints Administrator
  Date deposited:	19 Jun 2010 08:42
  Last modified:	08 Apr 2024 17:12
  URI:	https://strathprints.strath.ac.uk/id/eprint/14847