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A method for enhancing the voltage stability ofa power system is presented in this paper. The method isbased on a stability-constrained optimal power flow approach,where dispatch is done such that a maximum L-index isminimised for all load busses in a transmission grid. It isshown that optimal dispatch is obtainable with enhancedmargins for voltage stability using a semidefinite relaxation ofthe optimal power flow problem, and that this problem canbe formulated as semidefinite program with a quasi-convexobjective. Numerical tests are performed on the IEEE-30 busand BPA systems. The feasibility of the method is demonstratedthrough demonstrating that improved voltage stability marginsare obtained for both systems.
|Title of host publication||Proceedings of the 2015 IEEE Multi-Conference on Systems and Control (MSC)|
|Publication status||Published - 2015|
|Event||2015 IEEE Multi-Conference on Systems and Control - Novotel Pacific hotel, Manly, Sydney, Australia|
Duration: 21 Sep 2015 → 23 Sep 2015
|Conference||2015 IEEE Multi-Conference on Systems and Control|
|Location||Novotel Pacific hotel, Manly|
|Period||21/09/2015 → 23/09/2015|
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