Analysis of Controllers for Photovoltaic Fed Brushless DC Motor Based Water Pumping System

Abstract:

The paper proposes a comparative analysis of brushless DC (BLDC) motor based photovoltaic (PV) water pumping system with two different controllers namely the proportional-integral (PI) and the fuzzy. The controllers are designed such that the maximum power is extracted from the PV source with the incremental conductance (INC) algorithm. The controlled output is given to the boost converter, which acts as the maximum power point tracker (MPPT). It is followed by the three-phase inverter supplying the BLDC drive system. The constant speed operation is achieved via the spacevector pulsewidth modulation (SVPWM) technique in order to obtain constant throughput from the centrifugal pump. The performance of the system is analyzedwithMatLab/Simulink.It is shown that the fuzzy control provides better response then the PI control.

• Periodical: Applied Mechanics and Materials (Volume 787)
• Pages: 838-842
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.787.838
• Online since: August 2015
• Authors: M. Pandikumar*, R. Ramaprabha, Ranganath Muthu
• Keywords: BLDC Motor, Fuzzy Controller, MATLAB, Photovoltaic, PI Controller, SVPWM

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