| In this dissertation, firstly, the development background and the present research status at home and abroad of 1000MW hydro-generator are introduced, and the research significance of the leading phase operation capacity for 1000MW hydro-generator is discussed.Subsequently, the leading phase operation theory and analysis method of synchronous generator are shown, and the main factors of limited leading phase operation are analyzed, such as static steady limit, temperature rise of stator end core, etc, and the corresponding solving measures are proposed.Static stability is the important content of generator leading phase operation; therefore this paper emphatically analyzes the static steady of leading phase operation for 1000MW hydro-generator. Based on Matlab software and electrical machinery classical theory, the mathematical model is established. Reference on the design parameters of 700MW hydro-generator in three gorges right power station and 1000MW hydro-generator in Siberian Crane Beach station, the simulation is carried out. Comparing of both of the simulation results, the change laws of static power characteristic and power limit for 1000MW hydro-generator when generator leading phase operates are obtained, and subsequently the effects of design parameters on static steady are analyzed.Finally, in this dissertation, taking 1000MW hydro-generator in Siberian Crane Beach station for an example, in the basis on the establishment of single machine infinite bus system simulation model, further to simulate the process of late phase operation changed into leading phase operation for generator, the change laws of voltage, current, electromagnetic power, reactive power, power angle, speed and excitation current for generator terminal with their leading phase depth are obtained.The conclusion of this paper provides the references for the reasonable and reliable design and operation of 1000MW hydro-generator, and has certain theoretical significance and practical value.
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