The article presents the results on the development of a circuit solution for effective regulation of pumping station productivity, which allows achieving smooth start-up modes and energy-efficient control of pumping units by regulating the speed of their drive asynchronous motors. The diagram represents a control system for pumping units with two subsystems, one of which is a common frequency converter, and the other is a control unit for motor valves of pressure pipelines. The scheme makes it possible to ensure the rational use of hydropower resources by maintaining the required pressure in the main pipeline and smoothly changing the pump performance by means of a frequency-controlled electric drive. This is achieved by saving the supplied water at each of the control stages and reducing the specific consumption of electrical energy per unit volume of pumped water, as well as practically eliminating hydraulic shocks in the "pump - pressure network" system.

Topics
Converters, Electrical energy, Hydroelectric energy
1.
K. R.
 
Allaev
, Energy of the world and Uzbekistan (
Molia
,
Tashkent
,
2007
), pp.
23
–
26
.
2.
Y. V.
 
Anikin
,
N. S.
 
Tsarev
 and
L. I.
 
Ushakova
,
Pumps and pumping stations
(
Ural publishing House
,
Yekaterinburg
,
2018
), pp.
13
–
15
.
Google Scholar
 
3.
Sh. B.
 
Umarov
 and
D. D.
 
Rakhmatov
,
IOP Conf. Ser.: Mater. Sci. Eng
 
862
,
062032
(
2020
).
4.
N.
 
Pirmatov
 and
Sh.
 
Toshev
,
IOP Conf. Ser.: Mater. Sci. Eng
 
139
,
01030
(
2019
).
5.
D.
 
Madrakhimov
,
V.
 
Ivanova
 and
V.
 
Tsypkina
,
IOP Conf. Ser.: Mater. Sci. Eng
 
216
,
01151
(
2020
).
6.
Khushnud
 
Sapaev
,
Shukhrat
 
Umarov
 and
Islombek
 
Abdullabekov
 
E3S Web of Conf
.
216
,
01153
(
2020
).
7.
T. S.
 
Kamalov
, Frequency-regulated electric drive of pumping stations of machine irrigation systems (
Fan
,
Tashkent
,
2014
), pp.
35
–
37
.
8.
B. S.
 
Leznov
, Frequency-adjustable electric drive of pumping units (
Mashinostroenie, Moscow
,
2013
), pp.
31
–
36
.
9.
A. M.
 
Nikitin
,
A. V.
 
Malygin
,
G. I.
 
Shustov
 and
I. M.
 
Yakovlev
,
Water supply and San. tech
 
4
,
42
–
44
(
2014
).
Google Scholar
 
11.
K. R.
 
Allaev
,
V. A.
 
Khokhlov
,
R. A.
 
Sytdykov
 and
Zh. O.
 
Titova
, Electric power systems with large pumping stations (
Iqtisod moliya, Tashkent
,
2015
) pp.
17
–
24
.
12.
A. A.
 
Kadirov
 and
M. M.
 
Khamudkhanov
, Methods of research and calculation of energy-resource-saving operating modes of water-lifting pumping stations (
Yangi asr avlodi, Tashkent
,
2013
) pp.
32
–
35
.
13.
M. M.
 
Khamudkhanov
,
Kh. B.
 
Sapaev
 and
Sh. B.
 
Umarov
,
IOP Conf. Ser.: Mater. Sci. Eng
 
862
(
i6
),
062035
(
2020
).
14.
Tolagan
 
Kamalov
 and
Salihdjan
 
Khalikov
,
E3S Web of Conf
.
216
,
01157
(
2020
).
15.
Khushnud
 
Sapaev
,
Shukhrat
 
Umarov
 and
Islombek
 
Abdullabekov
,
E3S Web of Conf
.
216
,
01150
(
2020
).
This content is only available via PDF.
© 2021 Author(s).
2021
Author(s)
You do not currently have access to this content.