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Short-term resource scheduling with ramp constraints [power generation scheduling]

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4 Author(s)
Svoboda, A.J. ; Pacific Gas & Electr. Co., San Francisco, CA, USA ; Chung-Li Tseng ; Li, C. ; Johnson, R.B.

This paper describes a Lagrangian relaxation-based method to solve the short-term resource scheduling (STRS) problem with ramp constraints. Instead of discretizing the generation levels, the ramp rate constraints are relaxed with the system demand constraints using Lagrange multipliers. Three kinds of ramp constraints, startup, operating and shutdown ramp constraints are considered. The proposed method has been applied to solve the hydro-thermal generation scheduling problem at PG&E. An example alone with numerical results is also presented

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