Abstract
This study aims to seasonally examine run-of-river type hydroelectric power plants' ramp rates (generation changes) (RoRHPP). Turkey RoRHPP generations were obtained for this objective between 01 December 2020 and 01 December 2021. Obtained data are hourly resolution and belong to 560 plants. The total installed power of the plants used in work is 7897.06 MW. This study used histogram fields to examine ramp rates of 5%, 7.5%, and 10% of the installed power in 1, 3, and 6-hour periods. As a result of the investigations, the cumulative histogram areas of the ramps of 5% and above in 6 hours temporal periods of the spring, summer, autumn, and winter seasons were calculated as 39430.94, 22117.72, 17811.76, and 34914.32, respectively. When these ramps are evaluated according to their directions, the histogram areas of positive ramp (generation increase) in spring, summer, autumn, and winter are 20052.1, 10945.74, 9095.8, and 17303.19, respectively. The histogram areas of the negative ramps (reduction of generation) in spring, summer, autumn, and winter are 19378.84, 11171.98, 8715.96, and 17611.13, respectively. According to all these results, ramp events in Turkey's RoRHPP productions occurred the most in the spring. In addition, It was also concluded that positive ramp events occurred more in all seasons.
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