BLDC Motor Driven Solar PV Array Fed Water Pumping System Employing Zeta Converter
1.Unnikrishnan P
Department of Electrical and Electronics Engineering
Kerala Government Polytechnic College ,West Hill
unnisrishylam@gmail.com
2.Ajay Kumar EP
Department of Electrical and Electronics EngineeringSreerama Government Polytechnic College,Thriprayar
epajay2010@gmail.com
3. Muraleedharan MT
Department of Electrical and Electronics Engineering
Government Polytechnic College ,Kalamassery
muraleedharan5149@gmail.com
4. Basheer K
Department of Electrical and Electronics Engineering
SSM Polytechnic College Tirur
hodelectrical@ssmpoly.ac.in
5.Kamal VV
Department of Electrical and Electronics Engineering
Kerala Government Polytechnic College ,West Hill
vvkamalvv@gmail.com
6.Akhil Ahammed KE
Department of Electrical and Electronics Engineering
kerala Government Polytechnic College ,West Hill
akhilahmedsav@gmail.com
Abstract—This paper proposes a simple, cost effective and efficient brushless DC (BLDC) motor drive for solar photovoltaic (SPV) array fed water pumping system. A zeta converter is utilized in order to extract the maximum available power from the SPV array. The proposed control algorithm eliminates phase current sensors and adapts a fundamental frequency switching of the voltage source inverter (VSI), thus avoiding the power losses due to high frequency switching. No additional control or circuitry is used for speed control of the BLDC motor. The speed is controlled through a variable DC link voltage of VSI. An appropriate control of zeta converter through the incremental conductance maximum power point tracking (INC-MPPT) algorithm offers soft starting of the BLDC motor. The proposed water pumping system is designed and modeled such that the performance is not affected under dynamic conditions. The suitability of proposed system at practical operating conditions is demonstrated through simulation results using MATLAB/ Simulink followed by an experimental validation.
