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	Application or Prony method to parameter identification of synchronous generators
	Su Xiao-lin ; Zhou Shuang-xi
	2010-05-06 ; 2010-05-06
关键词	Practical/ machine testing short-circuit currents synchronous generators/ parameter identification synchronous generators Prony method three-phase short-circuit tests exponential function least square error fitting model three-phase short-circuit currents/ B8310D Synchronous machines B0170E Production facilities and engineering
中文摘要	The Prony method is presented to identify parameters of synchronous generators during their three-phase short-circuit tests. Prony method is used to fit the measured data of three-phase short-circuit currents with an exponential function based on the least square error, which can determine most parameters of the tested synchronous generator. The identification process includes four steps: determine the order of the fitting model, sample number and sample interval of Prony method; measure or record three-phase short-circuit currents without load; identify corresponding characteristic components in measured currents with Prony method; identify parameters of synchronous generators according to identified characteristic components. An example generator is identified and its results demonstrate the effectiveness of the presented method. The study shows that,higher accuracy can be achieved when sample interval is about 2 ms. The identification accuracy is related to the order of the fitting model, sample interval and sample number, and also affected by signal noise, which shows the method should be improved.
语种	中文 ; 中文
出版者	Editorial Office of Electrical Power Automation Equipment ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/10639]
专题	清华大学
推荐引用方式 GB/T 7714	Su Xiao-lin,Zhou Shuang-xi. Application or Prony method to parameter identification of synchronous generators[J],2010, 2010.
APA	Su Xiao-lin,&Zhou Shuang-xi.(2010).Application or Prony method to parameter identification of synchronous generators..
MLA	Su Xiao-lin,et al."Application or Prony method to parameter identification of synchronous generators".(2010).

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