Model for Electric Energy Production of Hydropower Plants Based on Reservoir Energy
Wu Jiekang1, Guo Zhuangzhi1, Zhu Yunan1, Qin Lihan2, Ning Lin3
1．Guangxi University Nanning 530004 China 2．Electric Power Research Institute of North China Beijing 100045 China 3．Beijing Super-High Voltage Company Beijing 100045 China
Abstract：This paper presents a modelling method for elctric energy production of hydroelectric plants and hydro-mechanical-electric coupling of large-scale reservoir. According to the law of conservation of energy, a hydro-mechanical-electric coupling model was constructed to formulate the electric energy converted from kinectic energy, potential energy, pressure energy and the reservoir energy. Reservoir energy is analyzed by such way, in which water body of reservoir is divided into multiple levels due to the shape of the bottom of the reservoir. By using the priciple of force analysis and energy conversion. The dynamic characteristics of instant power rate of hydropower-diven generator is studied for different factors, such as penstock angle, reservoir adjustment ability, reservoir water body, and maximal usage hours and so on. Some examples are employed to illustrate the feasiblility of the proposed method, and the simulation results shows that it could provide theory basis for the hydropower plant construction, economic operation and high effective utilization and transformation of hydro-energy.
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Wu Jiekang, Guo Zhuangzhi, Zhu Yunan, Qin Lihan, Ning Lin. Model for Electric Energy Production of Hydropower Plants Based on Reservoir Energy. Transactions of China Electrotechnical Society, 2009, 24(11): 149-156.
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2009, Vol. 24 
