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Dynamic Equivalent of a Distribution Grid Hosting Dispersed Photovoltaic Units
Chaspierre, Gilles; Panciatici, Patrick; Van Cutsem, Thierry
2017In IREP’2017 Symposium: X Bulk Power Systems Dynamics and Control Symposium
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Keywords :
active distribution networks; photovoltaic units; motor loads; short-term dynamics; dynamic equivalents
Abstract :
[en] This paper deals with the derivation of a simplified model of a distribution network hosting dispersed photovoltaic units. The model is aimed at short-term dynamic simulations of a transmission grid in response to large disturbances. In a first step, a generic dynamic model of a photovoltaic unit is proposed, focusing on its interactions with the grid, in particular the controls triggered by voltage disturbances. The model takes into account various present and near-future grid codes. In a second step, a dynamic equivalent is derived accounting for the distribution network, the dispersed photovoltaic units, as well as static and dynamic (motor) loads. This equivalent is of the “grey-box” type and its parameters are tuned in the least-square sense to match the dynamic response of the original, unreduced system. Simulation results are reported on a detailed 913-bus distribution system subject to faults at transmission level.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Chaspierre, Gilles ;  Université de Liège - ULiège > Doct. sc. ingé. & techno. (électr., électro. & inf- paysage)
Panciatici, Patrick;  RTE > R&D dept.
Van Cutsem, Thierry  ;  Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
Dynamic Equivalent of a Distribution Grid Hosting Dispersed Photovoltaic Units
Publication date :
2017
Event name :
IREP’2017 Symposium
Event place :
Espinho, Portugal
Event date :
form August 27th to September 1st, 2017
Audience :
International
Main work title :
IREP’2017 Symposium: X Bulk Power Systems Dynamics and Control Symposium
Peer reviewed :
Peer reviewed
Available on ORBi :
since 23 June 2017

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