Stability constrained optimal rescheduling of generation
- Iowa State Univ., Ames, IA (United States)
In this paper, an effective approach, based on the transient energy function (TEF) method of transient stability analysis, is proposed for stability constrained rescheduling of the generation and critical line flows for a given initial operating condition and designated contingency. In the proposed approach, the sensitivities of the energy margin with respect to changes in generation are used in the transient stability constraints, and distribution factors are used to monitor and constrain the critical line flows. The problem is formulated as a multiobjective optimization problem. A goal programming algorithm that incorporates an explicit knowledge base is used to solve the optimization problem. There are three objectives when the generation is rescheduled. (1) Energy margin is changed to the specific value which indicates the desired stability index of the system. (2) Critical line flows achieve the desired values as closely as possible. (3) Changes in generation are minimal. The proposed approach has been successfully tested on two power systems: a 17-generator and a 50-generator test networks.
- OSTI ID:
- 6002823
- Journal Information:
- IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:1; ISSN ITPSEG; ISSN 0885-8950
- Country of Publication:
- United States
- Language:
- English
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