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Performance Analysis of Centrifugal Pumps Subjected to Voltage Variation and Unbalance

Kini, Giridhar P and Bansal, Ramesh C and Aithal, Radhakrishna S (2008) Performance Analysis of Centrifugal Pumps Subjected to Voltage Variation and Unbalance. IEEE Transactions on Industrial Electronics, 55 (2). pp. 562-569. ISSN 0278-0046

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Abstract

Frequent variation of single-phase loads on power system networks results in voltage fluctuations and imbalance at consumer terminals. The application of such fluctuating voltages to operate centrifugal loads causes large variations in system performance. As a consequence, the incorporation of large safety factors have resulted in efficiency of pumping operations being less than 50% in most cases. However, small improvements in pump efficiency can lead to a significant reduction in energy consumption, and at the same time energy usage can be optimized. The operating point of a pump is obtained when the system curve intersects the pump curve. Variation in applied voltages leads to variation in the operating point, leading to inefficiency of system operation. This paper presents the impact of voltage variation and imbalance on the working performance of an induction motor-driven centrifugal pump system with an experimental study. Both overvoltage and under voltage conditions along with phase imbalance were considered for analysis.

Item Type: Article
Uncontrolled Keywords: Centrifugal pump, discharge, head, induction motor, International Electrotechnical Commission (IEC), operating point, pump curve, system curve, system efficiency voltage unbalance.
Subjects: Engineering > MIT Manipal > Electrical and Electronics
Depositing User: MIT Library
Date Deposited: 08 Sep 2011 10:00
Last Modified: 08 Sep 2011 10:00
URI: http://eprints.manipal.edu/id/eprint/1298

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