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Bokhari, A., Alkan, A., Dogan, R., Diaz-Aguiló, M., de León, F., Czarkowski, D., Zabar, Z., Birenbaum, L., Noel, A. and Uosef, R.E. (2014) Experimental Determination of the ZIP Coefficients for Modern Residential, Commercial, and Industrial Loads. IEEE Transactions on Power Delivery, 29, 1372-1381.
http://dx.doi.org/10.1109/TPWRD.2013.2285096
has been cited by the following article:
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TITLE:
Load Static Models for Conservation Voltage Reduction in the Presence of Harmonics
AUTHORS:
William Douglas Caetano, Patrícia Romeiro da Silva Jota
KEYWORDS:
CVR Load Model in the Presence of Harmonics, Conservation Voltage Reduction, Load Model Aggregation in the Presence of Harmonics
JOURNAL NAME:
Energy and Power Engineering,
Vol.8 No.2,
February
16,
2016
ABSTRACT: The Conservation Voltage Reduction (CVR) is a technique that aims to achieve the decrease of power consumption as a result of voltage reduction. The customer is supplied with the lowest possible voltage level compatible with the stipulated level by the regulatory agency. International Standards ANSI C84.1-2006 and IEEE std 1250-1995 specify the range of supply voltage to electronics equipment from 0.9 to 1.05 pu of nominal voltage. To analyse the CVR effect in distribution systems with different load characteristics (residential, commercial, industrial or a combination of these), mathematical load models are used. Typically, these equipment/load models are used to analyse load aggregation without any consideration of its nonlinearity characteristics. Aiming to analyse the nonlinear characteristics and its consequences, this paper presents a discussion of the neglected variables as well as the results of a set of measurements of nonlinear loads. Different mathematical models are applied to obtain them for each load. Using these models the load aggregation is evaluated. It is presented that although the models show adequate results for individual loads, the same does not occur for aggregated models if the harmonic contribution is not considered. Consequently, to apply the load model in CVR it is necessary to consider the harmonics presence and the model has to be done using only the fundamental frequency data. The discussion about the causes is done and the models are compared with the measurements.
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