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Control area performance improvement by extended security constrained economic dispatch

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2 Author(s)
Barcelo, W.R. ; Dept. of Electr. Eng., Tulane Univ., New Orleans, LA, USA ; Rastgoufard, P.

An algorithm for solving the extended security constrained economic dispatch (ESCED) problem with real-time economic dispatch grade speed and reliability is presented. The ESCED problem is formulated by adding a regulating margin and ramp rate constraints to the network security constrained economic dispatch problem previously solved by the CEDC algorithm. Starting with Newton's method to optimize the Lagrangian, the ESCED is developed by superimposing on Newton's method eight major components called tracking start initialization, hessian pre-elimination, implicit dual variable calculations, regulating margin sensitivity coefficient calculations, traumatic event evaluation, constraint relaxation, implicit ramp rate constraint implementation, and relaxed incremental cost calculations. Test results are also presented

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Power Systems, IEEE Transactions on  (Volume:12 ,  Issue: 1 )