{"references": ["[1] Islom Khafizov, Komil Gafforov, Muxammedov Sh., Jurakulov A. Energy saving when using a variable frequency drive in pump installations, Journal of Critical Reviews, ISSN- 2394-5125 Vol 7, Issue 12, 2020, P.99-102, http://dx.doi.org/10.31838/jcr.07.12.16 [2] Khafizov I.I., Komil Gafforov, Bakhodir Oblokulov, Aziz Azimov Elimination of energy losses in pumping installations by means variable frequency drive, International Engineering Journal For Research & Development, Vol.5, Issue 3, April 2020, E-ISSN NO:-2349-0721, Impact factor : 6.03.P.83-89, http://iejrd.com/index.php/%20/article/view/17/5 [3] Khafizov I.I., Gafforov K.K. Application and prospects of variable frequency means in electric drives of pumping units, \u041c\u0435\u0436\u0434\u0443\u043d\u0430\u0440\u043e\u0434\u043d\u044b\u0439 \u043d\u0430\u0443\u0447\u043d\u043e-\u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u044b\u0439 \u0436\u0443\u0440\u043d\u0430\u043b \u00ab\u041c\u041e\u042f \u041f\u0420\u041e\u0424\u0415\u0421\u0421\u0418\u041e\u041d\u0410\u041b\u042c\u041d\u0410\u042f \u041a\u0410\u0420\u042c\u0415\u0420\u0410\u00bb (ISSN 2658-7998, \u0434\u043e\u0433\u043e\u0440\u043e\u0432 \u0441 Elibrary \u2116284-07/2019), 15.11.2020. [4]\tIslom Khafizov, Bobkul Shaymatov, Komil Gafforov, Orzuqul Bozorov. \"Elimination of energy losses in pump units and increase of power efficiency by means of the tool of control of speed\", Innavative Technologica: Metdhodical Research Journal.Vol 2. \u211605 (2021) https://it.academiascience.org/index.php/it/article/view/49 [5] Islom Khafizov, Komil Gafforov, Bahodir Yormamatov.\"Mathematical Analysis of Electric Power Replacement Schemes of Weaving Machines\", European journal of life safety and stability (EJLSS). ISSN 2660-9630. Volume 12, 2021 http://www.ejlss.indexedresearch.org/index.php/ejlss/article/view/283 [6] Islom Khafizov, Komil Gafforov, Bektosh Miyliyev. \"Advantages of using a variable speed drive in pumping units\" Journal of education discoveries and lifelong learning. ISSN: 2776-0995 Volume 2, Issue 5, May, 2021 https://ejedl.academiascience.org/index.php/ejedl/article/view/67 [7] Islom Khafizov, Komil Gafforov, Zilola Imomova. \"Analysis of Pump Agrigarts Electric Power Control Elements in the Supply of Multi-Storey Houses Water Supply\", International journal on economics, finance and sustainable development. Vol.3No.12(2020). https://journals.researchparks.org/index.php/IJEFSD/article/view/2520 [8] Islom Khafizov, Komil Gafforov, Zilola Imomova. \" Reduced capital costs when using a frequency-controlled electric drive in pumping units\", International Journal on Integrated Education. Vol.4No.4(2021). https://journals.researchparks.org/index.php/IJIE/article/view/1607 [9] Islom Khafizov, Komil Gafforov, Sharif Murtazoyev. \"Technique of a feasibility study for the use of a variable frequency drive in pumping units\", Web of scientist: International scientific research journal. Volume 2, Issue 4, April, 2021. https://wos.academiascience.org/index.php/wos/article/view/52 [10] Islom Khafizov, Komil Gafforov, Sharif Murtazoyev. \"Mathematical Analysis of Electric Motor Braking Modes of Weaving Machines\", International Journal of Discoveries and Innovations in Applied Sciences. Volume: 1 Issue: 7,December,2021.https://openaccessjournals.eu/index.php/ijdias/article/view/831"]}

The article provides a brief overview of the most typical pumping units that use a variable frequency drive. Information on its efficiency and application features is given, as well as information on the use of frequency converters in pumping units. The review allows you to get some idea of the main stages of the introduction of a variable speed drive in pumping units.