Mario Manana

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The total harmonic distortion (THD) ratio is a well-known parameter that characterizes the distortion degree at a specific point of the grid. In this paper, a decomposition of the THD will be presented in order to determine the responsibility of the distribution company and the electrical energy consumer for the harmonic distortion measured at the point of(More)
1 Electrical and Energy department, University of Cantabria, Av. Los Castros S/N, Santander 39005, Spain; pablo.castro@unican.es (P.C.); rakelmt1987@hotmail.com (R.M.); mario.manana@unican.es (M.M.); alfredo.madrazo@unican.es (A.M.); ramon.lecuna@unican.es (R.L.) 2 Viesgo, Santander 39011, Spain; antonio.gonzalez@viesgo.com * Correspondence:(More)
The European standard CENELEC EN 50160 establishes that the severity of flicker caused by voltage fluctuations, under normal operating conditions, will not exceed the long term severity Pu = 1 during 95% of the time in one week. This threshold was originally established considering that a lamp with tungsten coiled coil filament of 60 W and 230 V that is(More)
After PQ data of interest are obtained, a comprehensive PQ assessment can be carried out depending on the purpose of the study. This may include power system and equipment modeling verification, PQ problem mitigation and optimization, and data analysis [4,5]. In most cases, automated PQ assessment is desirable because manual analysis may be difficult to(More)
Wave energy conversion can be done by using several technologies and oscillating bodies constitute an important class of wave energy converters, especially for offshore deployment. This research work focuses on the development of a Matlab toolbox able to analyze the performance of this class of converters considering specific wave conditions.
This article shows that lamp aging has a significant correlation with flicker generation. In this research work, a test system and a methodology able to measure optical fluctuation produced by different types of lamps and ballast are presented. This experimental platform provides a correlation between voltage flicker levels and optical flicker perception.(More)
Airports in general have high-energy consumption. Influenced by many factors, the characteristics of airport energy consumption are stochastic, nonlinear and dynamic. In recent years, airport managers have made huge efforts to harmonize airport operation with environmental sustainability by minimizing the environmental impact, with energy conservation and(More)
The decomposition of voltage, current and power is presented in order to determine the responsibility of the distribution company and the electrical energy consumer for the harmonic distortion measured at the point of common coupling, PCC. This way, three types of variables should be managed, namely fundamental frequency, frequencies associated with the(More)
In this paper the authors analyze different alternatives to provide energy utilities to a hospital center with cogeneration systems with diesel engines and gas turbines. The study considers several power sizes and control strategies, so it shows the influence of these parameters, showing that in this case the options with diesel engines are more efficient(More)