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- W2560442587 abstract "In order to avoid the influence of second-order component and other high-order components caused by three phases not shorted simultaneously in short-circuited currents on the generator parameters, the fast turn-on feature of power electronics elements (microsecond level) is applied. This paper analyzes in principle and designs a close set applied to synchronous generator sudden three-phase short-circuit test based on power electronic technique and micro-controller technique. It can realize the mentioned idea and can control the point at which the short is imposed, such as the point of one phase voltage crossing zero. The paper states the realizing principle of this kind of short set, analyses that electronic switches give rise to voltage distortion factor using discrete Fourier series, and discusses the influence of GTO turn-on resistance on the test precision, lastly validates its feasibility through simulation which model is configured with the design parameters of a turbogenerator (QFSN-650-2) to identify the transient quantities by nonlinear least square method, where the voltage-distortion factor is less than 0.202×10 -3 , which meets the requirement of the test standard." @default.
- W2560442587 created "2016-12-16" @default.
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- W2560442587 date "2012-01-01" @default.
- W2560442587 modified "2023-09-27" @default.
- W2560442587 title "A New Test Set to Synchronous Generator Sudden Three-phase Short-circuit Based on Power Electronic Technique and Micro-controller Technique" @default.
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