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Open AccessArticle

Macroeconomic Assessment of Voltage Sags

Department of Electrical Engineering and Automation , Aalto University, 02150 Espoo, Finland
Author to whom correspondence should be addressed.
Academic Editor: Tomonobu Senjyu
Sustainability 2016, 8(12), 1304;
Received: 10 November 2016 / Revised: 5 December 2016 / Accepted: 5 December 2016 / Published: 12 December 2016
(This article belongs to the Special Issue Sustainable Electric Power Systems Research)
The electric power sector has changed dramatically since the 1980s. Electricity customers are now demanding uninterrupted and high quality service from both utilities and authorities. By becoming more and more dependent on the voltage sensitive electronic equipment, the industry sector is the one which is affected the most by voltage disturbances. Voltage sags are one of the most crucial problems for these customers. The utilities, on the other hand, conduct cost-benefit analyses before going through new investment projects. At this point, understanding the costs of voltage sags become imperative for planning purposes. The characteristics of electric power consumption and hence the susceptibility against voltage sags differ considerably among different industry subsectors. Therefore, a model that will address the estimation of worth of electric power reliability for a large number of customer groups is necessary. This paper introduces a macroeconomic model to calculate Customer Voltage Sag Costs (CVSCs) for the industry sector customers. The proposed model makes use of analytical data such as value added, annual energy consumption, working hours, and average outage durations and provides a straightforward, credible, and easy to follow methodology for the estimation of CVSCs. View Full-Text
Keywords: voltage sag; cost; customer; interruption; reliability voltage sag; cost; customer; interruption; reliability
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Küfeoğlu, S.; Lehtonen, M. Macroeconomic Assessment of Voltage Sags. Sustainability 2016, 8, 1304.

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