Smart irrigation system with GSM module using DC-DC converter with Regenerative Snubber

To reduce the man power for irrigating the field. To minimize the wastage of water used for irrigation. To
save the electricity cost by operating the water pumping motor by utilising solar power. At power supply
unit, Z-Source converter is used to supply regulated supply with snubber to reduce the voltage drop due to
leakage inductance and to achieve less switching loss. The simulation is done with MATLAB and hardware
prototype is developed and tested successfully. The irrigation process is completely automated by using the
Arduino Mega microcontroller with GSM module for sending the current status to the farmer. Solar is the
major renewable source in India, is converted into electrical energy for supplying the entire system. Various
sensors are used to measure the physical parameters in order to control flow of water to the field. The sensed
signals are sent to the Arduino Mega to ON/OFF the DC motor pump set. GSM will give us information
about the current status of the motor pump set i.e. whether the motor is in ON or in OFF state. In this
proposal the water flow to field is improved by sensing the rainfall by using rain sensor. When the rain fall
happens, the motor-pump set is switched off to save, both the water and electrical energy.