A. Llaria, O. Curea, J. Jiménez and H. Camblong, “Survey on microgrids: Unplanned Islanding and Related Inverter Control Techniques,” Renewable Energy, Vol. 36, No. 8, August 2011, pp. 2052-2061. doi:10.1016/j.renene.2011.01.010

has been cited by the following article:

• TITLE: Islanding Operation of Electrical Systems in Buildings

  AUTHORS: David Johnston

  KEYWORDS: On-site; Generation; Islanding; Photovltaic; Regulation; Re-synchronisation

  JOURNAL NAME: Energy and Power Engineering, Vol.5 No.4B, October 15, 2013

  ABSTRACT: A control system was developed, which allows on-site generators within a building to operate in islanding mode, in the event of loss of grid supply. The on-site generation included a photovoltaic array and a back-up induction generator. Regulation include avoidance of sudden voltage and frequency changes at the transition to islanding mode, maintaining voltage and frequency within limits during islanding, and phase matching when the grid supply is re-established. Possible modes of operation during islanding were photovoltaic array alone, generator alone, or both sources operating in parallel. Control methods were considered for each of these, and the resulting voltage and frequency regulation was anal sized. The results show that voltage and frequency could be kept within limits, except during the transitions to and from islanding. At these times, the transients were minimised.