Design and Control of PV Based Isolated Power Supply Using iQF Controller for Agricultural

Electricity is very important in agriculture. Such electricity is not always available to the farmers. Uninterrupted power becomes impossible due to natural disasters, repairs, maintenance etc. The main objective of this research paper is to generate uninterrupted electricity from sunlight, store it and run agricultural equipment. FX5U iQF controller is used as the heart of the standalone power system. FX5U32MTESS controller is used for controlling the mode of operation of standalone power system. Both online mode and offline mode of operations are accomplished by the FX5U controller. FX5U controller has an inbuilt PWM port for controlling the solar tracking mechanism. Produced solar energy is stored in the battery through the charge controller and the same is used to drive the irrigation pump motor. Variable AC is obtained from the inverter part and the DC-DC chopper is used for obtaining the variable dc supply from the battery dc link voltage. The entire power system is easy to move wherever the power supply is required. The parameters of the standalone power supply are monitored by GT27 GOT2000 HMI.