Comparative Dynamic Performance of Switched Reluctance Motor in Flow Control of Centrifugal Pump

Centrifugal pumps are utilized in various applications that require flow control during operation. In pumping systems, flow control can be achieved by controlling the speed of the motor coupled to the centrifugal pump or by throttling a valve. In this paper, a comparison of the dynamic performance of a 12/8 switched reluctance motor for the two methods of flow control is presented. To ensure the performance of the switched reluctance motor in the flow control of the pumping system, the optimization of the turn-on angle and the DC-link voltage was performed. These results were compared and the switched reluctance motor under speed control was more energy efficient than the valve control. At a flow rate of 20.57 m³/h, using the flow control method through valve regulation, the electrical power in the motor was 176.28% of the electrical power from the method using speed control.