Van Cutsem, Thierry[Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation >]
IEEE catalog number: 07CH37914C
IEEE PES General Meeting
du 23 juin 2007 au 28 juin 2007
[en] Voltage stability ; system protection scheme ; undervoltage load shedding ; distributed control
[en] A new design of load shedding against long-term voltage instability is proposed. It uses a set of distributed controllers, each monitoring a transmission voltage and controlling a group of loads. Each controller acts in closed-loop, shedding amounts that vary in magnitude and time according to the evolution of its monitored voltage. The whole system operates without information exchange between controllers, the latter being implicitly coordinated through network voltages. The operation, design and robustness of the proposed scheme are illustrated through a small but realistic example.
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