Managing the efficiency of the work of the small hydro powerplant
We consider a hydro-wind power plant, in which, depending on the daily electricity needs and natural fluctuations of the water pressure and wind power, operational regulation of the efficiency of the electric power generated is applied due to the situational use of the energy of the wind turbine. We have determined, that spontaneous changes in the parameters of energy carriers negatively affect the technical and economic indicators of energy equipment. As a result, losses and cost of electricity are significantly increasing. It is confirmed that the dependence of the cost of electricity production on the number of hours of using the installed power of the power plant is estimated by the coefficient of extensive use Кext, coefficient of intensive use Кint and coefficient of integral use Кin = Кext × Кint . We propose a scheme of a hydro-wind power plant in which the processes of electricity generation are mechanically combined through the use of wind force and water pressure. Mechanically combining (for joint regulation) the processes of producing electricity in single hydro-wind power plant, one is able to increase the degree of use of the installed capacity of the mini hydro powerplant by increasing the duration of continuous operation with the highest possible energy conversion efficiency. The degree of usage of the installed capacity of the mini hydro powerplant increases due to an increase of the duration of continuous performance with the highest possible energy conversion efficiency. In the nighttime, a hydrogenerator with a turbine can be used as a pump for the accumulation of water in the reservoir and its subsequent use in the daytime maximum load. Increasing the efficiency of such installations will be noticeable when one of the generators will be able to increase the power of another by mechanical or (and) electric power, providing a greater degree of their usage. We also consider and analyze various variants of mechanical control of the work of the hydro-wind power plant with possible changes in the pressure of water or (and) wind. The conclusions and perspectives of further research of the highlighted problem are presented.
Varyvoda, Yu.Iu., Tymoshyk, A.M., & Tsizh, B.R. (2016). Patent na korysnu model Hidroenerhetychna ustanovka, U2016 06289 №112630, biul. №24 vid 26.12.2016. Rezhym dostupu: http://uapatents.com/9-112630-gidroenergetichna-ustanovka.html (in Ukrainian).
Tymoshyk, A.M., & Tymoshyk, I.A. (2014). Patent na korysnu model Hidro-vtroenerhetychna ustanovka, №91232 U biul. №12. 25.06.2014. Rezhym dostupu: http://uapatents.com/9-91232-gidro-vitroenergetichna-ustanovka.html (in Ukrainian).
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