Journal Paper

Paper Title - FPGA Controlled Solar Photovoltaic System Fed Induction Motor Through MLI

This study mainly focuses on the utilization of renewable energy to drive machine loads i.e., solar energy to drive the induction motor. To lessenthe load on conventional energy sources there is a need to move towards solar energy to supply power to electrical loads. Solar power generation is a hygienic and pollution free power generation and it is an inexhaustible power generation too. In this paper, simulations of solar photovoltaic system fed induction motor is presented and analyzed briefly. In addition to this, controlling of solar photovoltaic system with fast digital controller i.e. FPGA based results also presented. An MPPT charge controller is used in solar energy harvesting applications to extract the maximum power from an ambient solar energy source even under variations in light intensity and temperature. Initial stage FPGA controlled charge controller provides constant DC power at its output terminals and it is converted into AC by using FPGA controlled 3- level diode clamped inverter. In this paper open circuit voltage mode FPGA controlled MPPT charge controller is designed to get constant DC power. This DC power is acting as a source to FPGA controlled 3-Level inverter; and converts into AC power by this inverter. Sinusoidal Pulse Width Modulation (SPWM) is implemented in a Xilinx system generator environment and MATLAB to control the inverter. This inverter output is used to feed the induction motor. THDs of voltages and currents of 3-level inverter and induction motor are also observed. Keywords- Solar PV system, Solar PV cells/modules, MPPT Technique, System model, DC-DC Boost converter, Multilevel Inverter, FPGA control algorithm

Author - Ch.Venkateswra Rao, S.S.Tulasiram, B.Brahmaiah

Citation - Ch.Venkateswra Rao   ,   S.S.Tulasiram   ,   B.Brahmaiah   ,   Ch.Venkateswra Rao, S.S.Tulasiram, B.Brahmaiah " FPGA Controlled Solar Photovoltaic System Fed Induction Motor Through MLI " , International Journal of Industrial Electronics and Electrical Engineering , Volume-3, Issue-2  ( Feb, 2015 )

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| Published on 2015-02-03