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《Engineering Journal of Wuhan University》 2013-01
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Effects of generator electromagnetic processes on transient process of hydropower station with islanoled load

ZOU Jin,LAI Xu,ZONG Xin(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China)  
In the study of the transient process of hydropower stations,the first-order generator model which ignores the effects of electromagnetic process is widely used.The simulations of the transient process using third-order model and fifth-order model are better as they contain the electromagnetic process.Based on the united numerical models of hydraulic,mechanical and electrical system,the small fluctuations of the transient process is studied by using different generator models.The dynamic processes using first-order generator model and third-order,fifth-order model are quite different;while the dynamic processes of third-order model and fifth-order model are similar.So,the generator electromagnetic effects should be taken into account in the simulation of transient process.Particularly,in the condition of the hydropower stations with long diversion penstocks,the difference between the dynamic processes using first-order model and third-order model are greater.
【Fund】: 国家自然科学基金重点项目(编号:51039005);国家自然科学基金青年基金项目(编号:50909076)
【CateGory Index】: TV734
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