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Spectral content analysis of control water pumping system connected to the Electrical distribution network

Author Affiliations

  • 1University Abdou Moumouni of Niamey, Niger
  • 2Mines, Industry and Geology school of Niamey, Niger
  • 3Electrical Engineering Department, National Engineering School, University of Lome, Togo
  • 4Electrical Engineering Department, National Engineering School, University of Lome, Togo

Res. J. Physical Sci., Volume 7, Issue (3), Pages 1-6, September,4 (2019)


The heavy use of non-linear loads generates voltage and current harmonics that can cause various disturbing problems. The objective of this paper is to evaluate the harmonic pollution caused by the equipment of an induction motor pump unit supplied by the electrical distribution network and to propose solutions to mitigate it. In this work, two pump motor starting modes, direct starting and the motor associated with an inverter controlled by PWM signals, were simulated and experimentally tested. The simulations were carried out under Matlab/Simulink environment. Simulation results and experimental tests show that starting an induction motor in combination with a PWM inverter has better electromechanical performance than the results obtained when the motor pump is fed directly from the electrical grid.


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