Cascaded Multilevel Inverter for PV Cell Application using PIC Microcontroller
V. Srimaheswaran1, R. Uthirasamy2
1V. Srimaheswaran, Lecturer, Department of EEE, Vivekanandha College of Engineering, Thiruchengode.
2R. Uthirasamy, Assistant Professor, Department of EEE, Jansons Institute of Technology, Karumathampatti, Coimbatore.
Manuscript received on 07 February 2013 | Revised Manuscript received on 21 February 2013 | Manuscript Published on 28 February 2013 | PP: 19-24 | Volume-2 Issue-3, February 2013 | Retrieval Number: C0403022313/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The PV power generation have low efficiency due to the various constrains. This paper gives a new proposed method to improve the performance of the PV system. The PV cell is connected to boost chopper and Multi-Level Inverter (MLI). In order to improve the efficiency and for making the power generation available to the grid MLI is employed. MLI have emerged as attractive high power medium voltage converter to reduce harmonic component in the output current due to filter. In the proposed MLI there are 2-H bridge inverters to achieve the 5-level output voltage. A SPWM technique is used to generate the PWM signal for boost chopper inverter switches. Boost chopper is connected between the PV array and MLI. The purpose of boost chopper is to step-up the voltage and to produce continuous current to MLI. The simulation results are validated for the improvement in the PV cell system. The hardware is implemented with boost chopper and multilevel inverter. The PIC microcontroller is used to generate the PWM signal for boost chopper and inverter switches. Boost chopper output is fed to multilevel inverter and the stepped wave is obtained. The results obtained through simulation are verified with hardware results obtained.
Keywords: PV Array, Boost Chopper, and Multi Level Inverter.
Scope of the Article: Logic, Functional programming and Microcontrollers for IoT