Purpose: to improve the technology of irrigation with multi-tower sprinklers on sloping agricultural fields and to evaluate the efficiency of changing pressure at the pumping station outlet using frequency control of the valves during operation of machines with upward and downward movement.
Materials and methods. Studies of energy costs for the irrigation water supply during irrigation by sprinkler machines were carried out at pumping stations of the Volga irrigation system without frequency control of revolutions (NS-A, NS-42p, etc.) and with frequency control of revolutions (NS-22p, NS-10p, etc.). The assessment of energy consumption for water supply was carried out on the basis of data from feeders of hourly electricity consumption by pumping stations and instantaneous indicators of devices. Hydraulic calculations to select the optimal irrigation regime for four Zimmatic sprinklers in an irrigated area with slopes were carried out on NS-46p.
Results. The article shows the high efficiency of frequency control of pump speed during group operation of sprinklers, while the water flow and pressure at the outlet of the pumping station are always maintained within optimal limits with minimal electricity consumption for supplying 1000 cub. m of water 165–188 kW·h, which is 2–2.5 times less compared to with pumps D1250-125 operating without frequency regulation. On the NS-46p, when four Zimmatic sprinklers are operating, the pressure should be equal to 56 m of water during lifting. For example, the power consumption of two electric motors will decrease from 420 to 300 kW, and when moving downhill, the pressure will decrease to 49 m of water. For example, the power will decrease to 236 kW.
Conclusions. Research has confirmed the high efficiency of frequency control of pump speed, which makes it possible to maintain the required pressure regardless of the number of operating machines, as well as the field slope. Changing the pressure at the outlet of the NS-46p will make it possible to reduce electricity consumption by 33.4 %. During the irrigation season, electricity will be saved by 653.0 thousand rubles.
doi: 10.31774/2712-9357-2026-16-2-76-90
pumping station, slope agrophone, irrigation technology, sprinkler machine, frequency control of pump speed, energy consumption for irrigation
Ryzhko N. F., Ryzhko S. N., Smirnov E. S., Kolganov D. A., Grepechuk Yu. N. Technology of irrigation of sloping irrigated areas with multi-tower sprinkling machines. Land Reclamation and Hydraulic Engineering. 2026;16(2):76–90. (In Russ.). https://doi.org/10.31774/2712-9357-2026-16-2-76-90.
1. Olgarenko G.V., Turapin S.S., Bulgakov V.I., Kapustina T.A., Mishchenko N.A., Zverkov M.S., Pautova L.E., Grushin A.V., Medvedeva E.V., Bannikova A.I., Sosnovskikh I.D., 2020. Meliorativnyy kompleks Rossiyskoy Federatsii: inform. izd. [Land Reclamation Complex of the Russian Federation: information publ.]. Moscow, Rosinformagrotekh Publ., 304 p., EDN: AVWQXO. (In Russian).
2. Ryzhko N.F., Ryzhko S.N., Smirnov E.S., Shishenin E.A., Zagoruiko M.G., 2024. Energoeffektivnye i resursosberegayushchie tekhnologii v meliorativnom komplekse: nauch.-prakt. izd. [Energy-Efficient and Resource-Saving Technologies in the Land Reclamation Complex: scientific and practical publ.]. Moscow, Rosinformagrotekh Publ., 120 p. (In Russian).
3. Evseev E.Yu., 2023. Povyshenie effektivnosti primeneniya mnogofunktsional'noy mashiny na sklonovykh ploshchadyakh [Improving the performance of a multifunctional machine on slopes]. Niva Povolzhya [Volga Region Farmland], no. 2(66), DOI: 10.36461/NP.2023.66.2.005, EDN: JDPPNM. (In Russian).
4. Evseev E.Yu., Ryazantsev A.I., 2023. Povyshenie proizvoditel'nosti mnogofunktsional'noy mashiny krugovogo deystviya na sklonakh [Improving the productivity of a multifunctional circular action machine on slopes]. Vestnik Ryazanskogo gosudarstvennogo agrotekhnologicheskogo universiteta im. P. A. Kostycheva [Bulletin of Ryazan State Agrotechnological University named after P. A. Kostychev], vol. 15, no. 4, pp. 121-127, DOI: 10.36508/RSATU.2023.92.77.016, EDN: VPSSQO. (In Russian).
5. Barbosa B.D.S., Colombo A., de Souza J.G.N., da S. Baptista V.B., de Araújo A.C.S., 2018. Energy efficiency of a center pivot irrigation system. Engenharia Agrícola, Jaboticabal, Mar./Apr., vol. 38, no. 2, pp. 284-292, DOI: 10.1590/1809-4430-ENG.AGRIC.V38N2P284-292/2018.
6. Gilley J.R., Mielke L.N., Wilhelm W.W., 1983. An experimental center-pivot irrigation system for reduced energy crop production studies. Transactions of the ASAE, vol. 26, iss. 5, pp. 1375-1379, DOI: 10.13031/2013.34135.
7. Ryazantsev A.I., Turapin S.S., Evseev E.Yu., Antipov A.O., 2022. Obosnovanie regulirovaniya raskhoda dozhdevalnykh apparatov shirokozakhvatnykh mashin krugovogo deystviya [Justification of the regulation of the flow of sprinklers of wide-reach circular machines]. Melioratsiya i vodnoe khozyaystvo [Land Reclamation and Water Management], no. 3, pp. 6-10, DOI: 10.32962/0235-2524-2022-3-6-10, EDN: DJWYGY. (In Russian).
8. Ryzhko N.F., Abdrazakov F.K., Ryzhko S.N., Smirnov E.S., Shishenin E.A., Khorin S.A., 2025. Energoemkost podachi vody nasosnymi stantsiyami pri rekonstruktsii oroshaemykh uchastkov s ispolzovaniem nizkonapornykh dozhdevalnykh mashin [Energy intensity of water supply by pumping stations during reconstruction of irrigated sites using low-pressure sprinkling machines]. Melioratsiya i gidrotekhnika [Land Reclamation and Hydraulic Engineering], vol. 15, no. 1, pp. 43-59, DOI: 10.31774/2712-9357-2025-15-1-43-59, EDN: NHPEUC. (In Russian).
9. Leznov B.S., 2013. Chastotno-reguliruemyy elektroprivod nasosnykh ustanovok [Frequency-Controlled Electric Drive of Pumping Units]. Moscow, Mashinostroenie Publ., 176 p. (In Russian).
10. Yelovik V.L., Voitov I.V., Sedlukho Yu.P., 2022. Raschet i analiz rezhimov raboty tsentrobezhnykh nasosov s chastotno-reguliruemym elektroprivodom [Calculation and Analysis of Operating Modes of Centrifugal Pumps with a Frequency-Controlled Electric Drive]. Minsk, BSTU, 110 p., EDN: NXDWTG. (In Russian).
Funding source: subsidies for the implementation of State Assignment No. 082-00064-26-00 are from the federal budget.
