A discussion and analysis of the voltage stability problems in Oman

In this paper, the problems encountered in system voltages for a fast growi ng utility, i.e, the Ministry of Electricity and Water of the Sultanate of Oman in the Arabian Gulf are discussed. The utility has mostly air-conditio ning load in the summer and the system encountered voltage stability proble ms during peak summer conditions. The paper presents a detailed discussion on recommendations proposed to remedy the voltage problems. The most critic al period for voltage problems during summer days and its effect on remote load buses in terms of voltage profile is discussed. System wide weak volta ge buses have been identified. (C) 1999 Elsevier Science S.A. All rights re served.