Single Stage Explicit Double Diode Modelled PV Module Powered Linear Induction Motor Driven Water Pump System

This research work explains a novel single stage double diode modelled photovoltaic (PV) array powered linear induction motor operated water pump. The proposed system is implemented with no mechanical sensor, which makes for an economical and simple control strategy with optimal PV power extraction from the PV module. Moreover, an explicit current/voltage derivation of the double diode model of the PV array is also discussed, which provides a lower percentage error and simpler computational implementation compared to the Lambert-W function based estimation. The indirect-field oriented control has been discussed for linear induction motor (LIM) based drive to uphold decoupling phenomena. Later, the total sliding mode controller (TSMC) based space vector pulse width modulation technique (TSMC SVPWM) is proposed to provide robustness behaviour with minimised chattering characteristics of the total sliding mode controller (TSMC), which is employed for speed control of LIM. Practical responses have been presented to judge the performance of single-stage PV water pumping under steady and dynamic situations of sun irradiance levels.