期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：3
页码：1-9
DOI：10.1088/1755-1315/252/3/032056
出版社：IOP Publishing
摘要：The Belt and Road Initiative enables China's hydropower industry to go out. In order to improve the qualities of the design and operation of hydropower units in Asia and Africa, the reliability of the isolated grid operation should be considered. A simulation model for the typical operation of hydropower units is established. The influence of flow inertia time constant and unit inertia time constant on the operation characteristics of isolated network is analyzed. It is pointed out that the inertia ratio of units should be reduced as much as possible in the design process of hydropower stations. Based on the frequency characteristics of hydropower units under different frequency dead zone, an improved controlling strategy of turbine governor is proposed to provide technical support for the operation of hydropower units in isolated grid.
