Title :
Combined modeling of supply interruptions and voltage dips in a smart grid scenario
Author :
Pezone, A. ; Proto, Daniela ; Testa, Alfredo
Author_Institution :
Dipt. di Ing. Ind. e dell´Inf., Seconda Univ. degli Studi di Napoli, Aversa, Italy
Abstract :
Modeling of supply interruptions and voltage dips caused by component failures and scheme reconfigurations in an electrical distribution scheme is considered in a Smart Grid scenario. Explicit reference is made to a MV/LV transformer substation supplying an industrial load. The modeling difficulties due to the contemporaneous presence of fast switching actions together with slow repair procedures are discussed. A simple technique based on the decomposition of a complete Markov model, fully describing the system is presented. The different simplified models resulting from the decomposition are solved sequentially. The application to the MV/LV substation shows the technique suitability. The importance of accounting for voltage dips and short interruptions further than for long interruptions is also evidenced. This is a consequence of the ability of such brief duration disturbances to cause damages of longer duration such as industrial process shut-down.
Keywords :
Markov processes; failure analysis; power supply quality; smart power grids; substations; LV transformer substation; MV transformer substation; complete Markov model; component failures; electrical distribution scheme; explicit reference; industrial load; industrial process shut-down; scheme reconfigurations; smart grid scenario; supply interruptions; voltage dips; Circuit breakers; Load modeling; Maintenance engineering; Markov processes; Mathematical model; Substations; Switches; Discrete Markov Model; Long and Short Interruptions; Voltage Dips;
Conference_Titel :
Probabilistic Methods Applied to Power Systems (PMAPS), 2014 International Conference on
Conference_Location :
Durham
DOI :
10.1109/PMAPS.2014.6960669