Abstract
This paper presents a novel stand-alone solar powered water pumping system, especially suited for usage in rural or remote areas. In this scheme, inverter drives the induction motor, which drives the water pump. Moreover, the starting ability of an induction motor becomes quite poor due to the drop in the system voltage when the motor starts. For these reason, overall efficiency of an induction motor based drive systems supplied by a PV array is lower. To obtain maximum output power of the solar panel, the inverter is operated at soft start to minimize starting current of motor by using FCMA technology. The use of FCMA helps in variable speed controls, increasing the life of components and reducing the capital cost & maintenance. It also assists in enhancing motor efficiency.
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