Analysis of methodologies for the economical evaluation of power quality

Abstract

This paper focuses on the economical evaluation of the Power Quality in power grids. The term Power Quality includes, in general, a set of boundary conditions which allow electrical systems connected to the grid to function in their intended manner, without significant loss of performance or life. Therefore, the operation of the power system outside these boundaries directly impacts on the economical performance of the whole system. The evaluation of the economical loses derived of this fact has been matter of several studies, mostly applied to individual cases. This paper will firstly define and evaluate different existing methodologies for the evaluation of financial losses due to power quality issues. The power quality issues being considered are voltage sags and short interruptions. A second part of the paper will focus on the development of a new methodology based on macroeconomic parameters recollected in the National Countability Register, in order to generalize the methodologies above with a more broad application. The result of this research will provide a more generalize method for power economics evaluation, which can be easily extrapolated to different environments. Results of the application of this methodology will be also provided.