Variable Frequency Drive is reviewed in the article. Such drives have been successfully used in the in variable load mechanisms, which include fans, pumps and blowers last 10-15 years. The main pa- rameters, characteristics, classical and modern methods of regulating pumping systems are considered. The power consumption of such mechanisms is proportional to the cube of the rotational speed, which is regulat- ed by modern Variable Frequency Drives. They are used to control the speed and torque of the engine, which leads to a reduction of power consumption. This provides significant energy and resource savings. Nowadays the leading manufacturers of such drives offer already in addition to this advanced software that implements advanced algorithmic and technological solutions, provides optimum performance, enhanced security and easier installation and diagnostics. To increase the efficiency of the engine Mitsubishi Electric offers innovative algorithms of Optimum Excitation Control. With such control, at different load moments, the motor operates with the maximum possible efficiency close to the optimum. This method provides signifi- cant energy savings when working with low loads, providing an additional saving of power consumption of at least 15%. In addition to significant energy savings, the efficiency of the engine with such control is ap- proximately 30% higher than for the classic (V / F = const), and at the same time a large starting torque. This concept of construction and management of pumping systems, the introduction of energy saving tech- nologies leads to increasing comfort, efficiency and decreasing lifecycle costs. The saving of heat and elec- tricity energy and the ecological effect, connected with this, as well as raising the standard of living, are the first tasks that engineers are setting up today.

Author Biographies

Анатолий Иванович Шестака, National University "Odessa Maritime Academy"

senior Lecturer of Department of Electromechanics and electrical ship, National University "Odessa Maritime Academy"

Любовь Васильевна Мельникова, Odessa National Polytechnic University

Doctor of Philosophy (Ph.D), Associate Professor of Department of electromechanical systems with computer control, Odessa National Polytechnic University

Александр Георгиевич Калинин, Odessa National Polytechnic University

senior Lecturer of Department of Department of electromechanical systems with computer control, Odessa National Polytechnic University

How to Cite
Шестака, А., Мельникова, Л., & Калинин, А. (2017). VARIABLE FREQUENCY DRIVES IN PUMPS. Electrotechnic and Computer Systems, (25(101), 80-90.
Energy saving technologies in electric power industry

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