A Novel Asymmetric Multilevel Inverter with Reduced Number of Switches for Grid-tied Solar PV System

Author:

Siva Asapu1,Rajendran Vanitha1

Affiliation:

1. Electrical and Electronics Engineering, Sathyabama Institute of Science and Technology, Chennai, India

Abstract

Background & Objective: In single-phase solar PV applications, the module voltage level is limited; therefore, a coupled step up transformer is mandatory portion to interconnect into the grid. However, due to presence of transformer, the overall cost and size of the single-phase grid tied solar PV system is higher. Multilevel inverter is an alternative solution to solve these issues, but it requires more number of switches. Methods: In order to overcome this drawback, this particular paper proposes a novel asymmetric multilevel inverter (AMLI) with reduced number of switches for solar PV grid-tied system. The operational details of the proposed converter are explained in this paper. In addition, the MPPT control has been implemented in the proposed novel AMLI and presented in this paper. The hysteresis current control mechanism is applied to the proposed converter and corresponding control blocks are reported in this paper. Results: Finally, to validate the proposed system, the simulation results are performed and correlated with theoretical approach Furthermore, to verify the feasibility of proposed converter for solar PV grid-tied system, the experimental setup was made and experimental results have been measured and presented in this paper. Conclusion: From the measured results, it is concluded that the proposed asymmetric MLI can be most promising converter for solar PV grid connected system.

Publisher

Bentham Science Publishers Ltd.

Subject

Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Single-Phase Grid and Solar PV Integration with 15-Level Asymmetrical Multilevel Inverter;Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering;2024

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