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Decentralized Non-linear Control for Improving the Electromechanical Transient Behavior of Multi-machine Power Systems

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A Hamiltonian multi-machine formulation is utilized for designing non-linear controllers with the purpose of helping to alleviate the electromechanical transient behavior after large disturbances. The controllers' design is based on a tracking problem, where the excitation voltage and the mechanical torque are employed as inputs. It is possible to utilize an observer for no accessible signals. The combined action of voltage and speed controllers achieves the objectives. Results are exhibited on two power systems in the open literature.

Keywords: geometric control; non-linear control; power system stability

Document Type: Research Article


Affiliations: 1: Department of Electrical Engineering, Centro de Investigacion y Estudios Avanzados, Guadalajara, Mexico 2: Faculty of Mines, Universidad Nacional de Colombia, Sede Medellin, Colombia

Publication date: December 1, 2009

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