Repairing and commissioning of an AC motor speed controller for a centrifugal pump

Md. Touhid Nur Rahman  -  Dept. of Mechanical Engineering, RUET, Bangladesh
Md. Momin Turzo  -  Dept. of Mechanical Engineering, RUET, Bangladesh
Ahammed Masum Billah  -  Dept. of Mechanical Engineering, RUET, Bangladesh
*Md. Masum Akanda  -  Dept. of Glass & Ceramics Engineering, RUET, Bangladesh
Md. Rahat Rahman  -  Dept. of Mechanical Engineering, RUET, Bangladesh
Received: 27 Apr 2019; Accepted: 27 May 2019; Published: 20 Jun 2019; Available online: 29 May 2019.
Open Access
Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Citation Format:
Article Info
Section: Articles
Language: EN
Full Text:
Statistics: 125 95


A centrifugal pump was installed in 1984 in the Fluid Mechanics Laboratory of Mechanical Engineering Department of Rajshahi University of Engineering & Technology. The motor of the centrifugal pump was dc motor and was not working. It could not be commissioned for a long time because of the damaged speed controller. The main shaft (rotor) was also jammed. In this project work, the dc motor was tried to repair. But it could not be run because the specification of the motor and the operating manual was not available. To complete the project successfully, the dc motor was replaced by an ac induction motor. After replacing the motor, the speed of the new motor was controlled by a variable frequency drive (VFD). Using this device, the speed was controlled from 600 rpm to 3000 rpm smoothly. After the replacement, the testing of the centrifugal pump was successfully performed and the motor was controlled in various speeds. Experiment on the performance test of the centrifugal pump was carried out satisfactorily running the pump in various speeds operated by the VFD.

DC motor, Pump Testing, Mechanical Fault Detection, Fluid Machinery

Article Metrics:

  1. Patel, Nimai Charan, Manoj Kumar Debnath, Binod Kumar Sahu, and Pranati Das. "2DOF-PID Controller-Based Load Frequency Control of Linear/Nonlinear Unified Power System." In International Conference on Intelligent Computing and Applications, pp. 227-236. Springer, Singapore, (2019).
  2. Arefin, Md Arman, Avijit Mallik, and Md Asfaquzzaman. "Renewable energy–assisted hybrid three-wheeler: A numerical investigation." Advances in Mechanical Engineering, 10, no. 12 (2018): 1687814018814372.
  3. Subotic, Ivan, Obrad Dordevic, Barry Gomm, and Emil Levi. "Active and Reactive Power Sharing Between Three-Phase Winding Sets of a Multiphase Induction Machine." IEEE Trans. Energy Con. (2019). (To be published)
  4. Nitabaru, Tomoaki, Hiroaki Okada, Toshiaki Isomura, Yoshichika Kawashima, Hideaki Abe, and Hisashi Ogata. Drive Control Development of Switched Reluctance Motor for Compact Electric Vehicles. No. 2019-01-0460. SAE Technical Paper, (2019). (To be published)
  5. Stekl, P. "3-Phase AC Indudction Vector Control Drive with Single Shunt Current Sensing." Czech Republic: Freescale Czech Systems Laboratories (2007).
  6. Godbole, Kedar. "Field oriented control reduces motor size, cost and power consumption in industrial applications." Texas Instruments (2006).
  7. Murray, Aengus. "Transforming motion: field-oriented control of ac motors-FOC principles simplify the analysis of ac machines and allow good dynamic control of the machine flux and torque." EDN, 52, no. 20 (2007): 59-66.
  8. Rafiq, A., Mohammed Golam Sarwer, Manoj Datta, and B. C. Ghosh. "Fast speed response field-orientation control induction motor drive with adaptive neural integrator." In 2005 IEEE International Conference on Industrial Technology, pp. 610-614. IEEE, (2005).
  9. Drury, B. "The Control Techniques Drives and Controls: Handbook, EMERSON." (2009).
  10. Bose, Bimal K. Power electronics and motor drives: advances and trends. Elsevier, 2010.
  11. Naitoh, Haruo, and Susumu Tadakuma. "Microprocessor-based adjustable-speed dc motor drives using model reference adaptive control." IEEE Transactions on industry applications, 2 (1987): 313-318.
  12. Inaba, Hiromi, K. Hirasawa, Takeki Ando, Mitsuyuki Hombu, and M. Nakazato. "Development of a high-speed elevator controlled by current source inverter system with sinusoidal input and output." IEEE transactions on industry applications, 28, no. 4 (1992): 893-899.
  13. Mauricio, Gerson, Christian Ordóñez, Leonardo Vinces, and Julio Ronceros. "Automatic Diagnostic System Oriented Efficiency PUMP Testing System Based on Constant and Variable Speed." In 2018 IEEE Sciences and Humanities International Research Conference (SHIRCON), pp. 1-4. IEEE, (2018).
  14. Hu, Maomao, Fu Xiao, John Bagterp Jørgensen, and Shengwei Wang. "Frequency control of air conditioners in response to real-time dynamic electricity prices in smart grids." Applied Energy, 242 (2019): 92-106.
  15. Islam, Anisul, Md. Mashrur Islam, and Nadim Mahmud. “Stress on spur gear and simulation for micro hybrid systems by Ansys workbench.” J. App. Res. Ind. Eng., 6, no. 1 (2019): 80-86. doi: 10.22105/jarie.2019.174397.1083