Abstract
The task of this work was to consider the main technical parameters of pumping stations that affect the operating modes and the overall reliability of a special power supply system. Also, the technological processes of the irrigation pumping station were investigated and the analysis of mechanical and parametric characteristics, the causes of the asynchronous operation of mechanisms and the failure of the pumping units themselves was carried out. As a result of the work, a method for calculating the voltage drop was proposed, a new independent algorithm for calculating the static stability and the stability margin for the active power of special electrical equipment was developed.
Highlights
The Khoja Bakyrgan-1 (KB-1) pumping station, which serves for irrigation of thousands of hectares of land, is located in the north of the BabajanGafurov region of the Republic of Tajikistan
According to clause 1.2.13 of the Rules for the Installation of Electrical Installations and the Rules of Technical Operation, the power supply of such large consumers for the reliability and stable operation of large pumping stations belongs to a special group, that is, the 1st category, which allows additional power from a third source, usually not included into the power system [5]
Based on the foregoing, in order to determine the stability of the operation and productivity of the pumping station, we draw up an algorithm for calculating the effect of voltage reduction on productivity
Summary
The Khoja Bakyrgan-1 (KB-1) pumping station, which serves for irrigation of thousands of hectares of land, is located in the north of the BabajanGafurov region of the Republic of Tajikistan. It is one of the most important objects of water management, which is powered by the Kairakkum hydroelectric power station of the Sughd energy system of the Republic of Tajikistan [1]. The installed capacity of the first lift of the pumping station is 48 MW, and that of the second lift is 27.2 MW, the facility is one of the energy-intensive consumers of the Kairakkum power plant and is included in the first category of electricity consumers [2]. Switching off the motors of pumping stations in emergency situations of the power system
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