Negative Impact Mitigation on the Power Supply System of a Fans Group with Frequency-Variable Drive

Yerbol Yerbayev, Ivan Artyukhov (), Artem Zemtsov, Denis Artyukhov, Svetlana Molot, Dinara Japarova and Viktor Zakharov
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Yerbol Yerbayev: Higher School of Electrical Engineering and Automation, Zhangir Khan West Kazakhstan Agrarian Technical University, Uralsk 090009, Kazakhstan
Ivan Artyukhov: Department of Power and Electrical Engineering, Yuri Gagarin State Technical University of Saratov, 410054 Saratov, Russia
Artem Zemtsov: Department of Power Supply for Industrial Enterprises, Samara State Technical University, Syzran Branch, 446001 Syzran, Russia
Denis Artyukhov: Department of Power and Electrical Engineering, Yuri Gagarin State Technical University of Saratov, 410054 Saratov, Russia
Svetlana Molot: Department of Power and Electrical Engineering, Yuri Gagarin State Technical University of Saratov, 410054 Saratov, Russia
Dinara Japarova: Higher School of Electrical Engineering and Automation, Zhangir Khan West Kazakhstan Agrarian Technical University, Uralsk 090009, Kazakhstan
Viktor Zakharov: Department of Energy, Automation and Computer Technology, West Kazakhstan Innovative and Technological University, Uralsk 090009, Kazakhstan

Energies, 2022, vol. 15, issue 23, 1-21

Abstract: The technological installations’ characteristics are possible to improve by equipping fans with a frequency-controlled electric drive. However, it can lead to an electromagnetic compatibility problem in the electrical supply system. This problem becomes worse if a large number of fans are included in the technological installation and the electric drives are powered from a substation connected to a limited power source. As an example, in this article we investigate the power supply system of a gas cooling unit with variable-frequency electric drives for fans. The electric drives’ operating mode dependences characterizing the non-sinusoidal voltages and currents of the power source are obtained with the help of simulation modeling in the MATLAB environment with the Simulink expansion package. The typical substation circuit usage for the power supply of a group of fans with a frequency-controlled drive does not meet the requirements of IEEE Standard 519-2014. We can solve the problem of electromagnetic compatibility by changing the substation topology and organizing DC busbars and replacing frequency converters with inverters. We proposed forming DC busbars using 12-pulse rectifiers powered by transformers with two secondary windings with different connection schemes. The simulation results confirmed that the proposed substation topology provides the voltage and current harmonics level on the substation power busbars in accordance with the IEEE Standard 519-2014 requirements over the entire frequency range of the fans’ motor control.

Keywords: gas cooling plant; power supply system; frequency variable drive; power quality; harmonic compensation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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