Abstract

Excitation system of synchronous generator is the main equipment of operation and control of generators and power system. According to the field experience and the statistical data. More than fifty percent of all the faults of generator are because of the excitation system. So finding the tiny fault of excitation system in time and making adjustment in serious condition are very significant to ensure the safety of generator group and power system. Based on analyzing the shortcomings of the existing excitation protection methods, the new excitation protection of synchronous generator by directly measuring delta and s is put forward in the paper. Through dynamic numerical simulation, the results show that adequate protection and control method is obtained

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