Matlab Design of Variable Frequency Drive to Control a Submersible Water Pump based on Photovoltaic Energy

Abstract

This paper, provides the design, modeling and simulation of a Variable Frequency (Drive VFD) with LC filter for a water irrigation pump. The design of three-phase inverter is based on PWM generator where this PWM generator is designed by another PWM generators subsystem. The testing of circuit and of voltage signals is also done with and without LC filter. The formulation and calculation of control system is based on voltage to frequency ratio (V/F) where it is expected to keep constant the speed of motor while frequency changes from 30Hz to 50Hz.