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The characterization of three-phase systems with neutral under unbalanced operation in the presence of waveform distortion is a key aspect in the power quality studies. This paper presents the application to a number of real cases of a unified framework providing a set of synthetic indicators capable to explain the individual effects of unbalance and harmonic distortion. The use of specific indicators...
This paper illustrates and discusses some specific aspects concerning the harmonic distortion occurring in the operation of photovoltaic (PV) plants. The time evolution of the individual, total and partially weighted harmonic distortion is evaluated for a multistring PV plant and for a sun-shield installation affected by the consequences of the shading effect in the morning hours of the day
Searching for the optimal radial configuration of large distribution systems is a problem leading to combinatorial explosion of the number of configurations to analyze. Several deterministic and heuristic methods have been applied in order to endeavor near-optimal solutions. However, no method can ensure that the optimal solution is found in a finite time, so that developing and testing new heuristics...
Customer classification is aimed at providing to the electricity suppliers a sound information on the electricity consumption, to be used for formulating dedicated tariff structures. Different clustering methods can be adopted for assisting the process of electricity customer classification. Previous studies have identified two methods - hierarchical clustering and follow-the-leader - as most promising...
The optimal reconfiguration of a large distribution system is a global optimisation problem typically solved by using deterministic or heuristic methods. Comparing the effectiveness of the various methods can be assisted by formulating a unified framework able to identify the common characteristics and the conceptual differences among the methods. This paper illustrates the development of such a framework,...
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