Effect of Higher Order DC-DC Converter on Solar fed BLDC Motor Driven Water Pumping System

摘要

Standalone BLDC motor system for applications such as household water pumping, irrigation, electric vehicle etc has been commercialized. In this system, closed loop power electronic converters control the speed of BLDC motor and track maximum power drawn from solar panel. Zeta converter with inductor on the load side is used to track maximum power. This paper presents design of power electronic converters for driving BLDC motor using solar PV source. Design of converters is done according to the ratings of BLDC motor and required solar PV array. The performance of Zeta converter is shown through simulated results of 2. S9kW, 3000 rpm BLDC motor. The effect of higher order converter is shown in terms of comparison with second order buck boost converter.