Performance Analysis of a Conventional Single-Phase Submersible Pump Irrigation System with on Containing a Variable Frequency Drive
| Author: |
M. Ishtiaque Rahman and Khosru M Salim |
| Abstract: |
Irrigation plays a major role in food security all over the world. In rural areas, single-phase power is mostly available, which is why most irrigation systems consist of single- phase induction motors. The performance of these systems depends heavily on the quality of power available. Often times, the voltage delivered to the load is lowered due to transmission line drops and inadequate power generation. As a result, the current drawn by the loads increases and system efficiency falls.
This paper presents the experimental findings of two single-phase submersible pump systems in which the voltage supplied has been varied. In one of the systems, the effects on system performance of incorporating a single-phase variable frequency drive (VFD) before the power reaches the load is investigated. A comparison between input power and flowrate has been made for each system. It is seen from the results that the flowrate at any particular input power is greater for the system with VFD, implying that the output power and hence system efficiency is improved. Hence, the impact of power quality issues can be mitigated by incorporating these drives into single-phase systems.
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