A Three phase Five-Level Inverter with Fault Tolerant and Energy Balancing Capability for Photovoltaic Applications

A, Madhukar Rao and Sahoo, Manoranjan and K, Siva Kumar (2016) A Three phase Five-Level Inverter with Fault Tolerant and Energy Balancing Capability for Photovoltaic Applications. In: IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 14-17 December, 2016, Trivandrum, INDIA.

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Abstract

A fault tolerant three phase five-level inverter configuration for the application of islanded photovoltaic (PV) systems is proposed. The fault tolerant five-level inverter configuration is achieved by stacking a two-level inverter, a three-level neutral point clamped inverter along with three bidirectional switches. This configuration is fed with two DC sources. The proposed configuration shows fault tolerant behavior towards switch open circuit fault in one or more inverter legs. In case of source failure it is able to utilize the healthier source for supplying uninterrupted power to essential loads. During fault the proposed fault tolerant inverter operates as three-level inverter with half of the rated power. The configuration also has the provision of energy balancing among two sources during partial shading or malfunctioning of PV system. The operation of the proposed inverter during different failure modes and energy balancing among two sources are discussed and verified using MATLAB/SIMULINK.

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IITH Creators:
IITH CreatorsORCiD
K, Siva KumarUNSPECIFIED
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: bidirectional switches; fault tolerant three phase five level inverter; PV generation system; energy balancing
Subjects: Electrical Engineering > Power System
Divisions: Department of Electrical Engineering
Depositing User: Team Library
Date Deposited: 14 Sep 2017 09:58
Last Modified: 14 Sep 2017 09:58
URI: http://raiith.iith.ac.in/id/eprint/3546
Publisher URL:
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