ENERGY-EFFICIENT OPERATING MODES OF ASYNCHRONOUS ELECTRIC MOTOR PUMPS WITH VARIABLE FREQUENCY CONTROL

Abstract

Asynchronous electric motor-driven pump systems equipped with variable frequency control are widely applied to improve energy efficiency and operational flexibility in industrial and utility sectors. However, the selection of operating modes has a significant impact on both energy consumption and system reliability. This article investigates energy-efficient operating modes of asynchronous motor pumps under variable frequency control. The study analyzes the relationship between motor speed, load characteristics, and power consumption across different operating regimes. The results indicate that optimized frequency control enables substantial energy savings while maintaining stable hydraulic performance. Additionally, appropriate selection of operating modes reduces mechanical stress and contributes to improved overall system efficiency. The findings emphasize the importance of energy-oriented control strategies in the design and operation of modern pump installations.