Stabilité du réseau électrique de distribution. Analyse du point de vue automatique d'un système complexe

Abstract : To maintain the voltage within specified limits, local control laws of distributed generators (DGs) reactive power (Q) with respect to their voltage (U) have been considered. This work studies the impact of Q(U) control laws on distribution feeders’voltage stability. An empirical study confirms the risk of voltage instability and highlights its dependence on control law parameters. To help distribution grid operators to choose these parameters, three methods assessing stability are formulated.First, a formal method based on discrete abstraction and bisimulation calculation is developed. The proposed approach yields precise results but with a high computational load. Then, to overcome this issue, an analytical criterion adapting Q(U) control laws response time with respect to grid parameters is formulated. Finally, a general criterion, valid in any cases, is established in order to be included in the grid codes. To conclude this work, extension to more complex cases is discussed.
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Marjorie Cosson. Stabilité du réseau électrique de distribution. Analyse du point de vue automatique d'un système complexe. Autre. Université Paris-Saclay, 2016. Français. ⟨NNT : 2016SACLC065⟩. ⟨tel-01374469⟩

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