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Comparing with non-salient pole generator, large salient-pole generator's stator winding has generally more branches, so the related protection performance has some difference. In the paper, the related electric quantity change and protection performance are analyzed when generator stator winding breakage fault (SWBF) occurs, and the analysis results are confirmed by the dynamic simulation experiment...
Because of the complexity of topology and control strategy, the mid-voltage and large power frequency converter has more failure types and fault feature relatively. Then the correct identification and isolation of its internal faults are very important. Based on the MATLAB/Simulink, this paper established a complete fault simulation model of IGCT series mid-voltage & mid-power three level frequency...
Based on the summary of the research about internal short circuit faults and the main protection scheme for huge multi-branch hydro generator, the significance to research transient process in faulty condition is pointed out in the paper. By far, there almost have no perfect simulation model suits for generator optimized main protection scheme research based on internal fault transient process simulation...
The paper analyzed all the possible faults that may happen in stator of Pubugou 600 MW multi-branch hydro generator. And transient electrical characteristics of these faults are simulated by simplified simulation model, which is constructed based on dual damper in each pole principle. Based on simulation data, the protection effects of different protection theories under different stator branch grouping...
In order to analyze the dynamic performance for hydro-generator under loss of excitation (LOE) condition more effectively, based on MATALB, a mathematical model of hydro-generator under LOE condition is constructed in this paper. The model includes synchronous generator model, speed governor model, hydraulic turbine model, excitation regulation model and transmission line model. Several types of LOE...
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