Abstract
A novel excitation system based on full controlled devices rectifier is proposed in this article, and the excitation system can provide double kinds of damping for power system by controlling the excitation voltage of DC side and exchanging reactive with generator. Through the Mat lab / Simu link simulation platform, a circuit model is established. This paper presents a current feed forward decoupling control method and the active and reactive current can be controlled independently by the method. The simulation results of two-area including four generators system shows the system damping ratio is improved significantly, and has better dynamic performance than conventional excitation system .
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