Bala Krishna, Pagadala (2017) Modular Cascaded H-Bridge Multilevel Inverter with Distributed MPPT for Grid Connected Application. MTech thesis.
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This work presents a modular cascaded H-bridge multilevel photovoltaic (PV) inverter for three-phase grid-connected applications. The topology of modular cascaded H-Bridge multilevel inverter helps to improve the efficiency and flexibility of PV systems. In this work, a distributed maximum power point tracking control scheme is applied for three-phase multilevel inverter to understand a better utilization of PV modules and maximize the solar energy extraction. Because this distributed MPPT control scheme allows independent control of each dc-link voltage. The mismatches in PV panel should takes place in three-phase gridconnected applications, and the above mentioned mismatches can be introduced unbalanced power supply, create an unbalanced grid current. PV mismatches can be controlled by the following technique i.e., a modulation compensation is introduced. By using nine H-bridge modules a three-phase seven-level cascaded H-bridge inverter is built, each phase has three modules. Simulation results are presented to verify the feasibility of the proposed approach.
|Item Type:||Thesis (MTech)|
|Uncontrolled Keywords:||Distributed MPPT; Modulation compensation; PV mismatches|
|Subjects:||Engineering and Technology > Electrical Engineering > Power Systems|
Engineering and Technology > Electrical Engineering > Power Electronics
|Divisions:||Engineering and Technology > Department of Electrical Engineering|
|Deposited By:||Mr. Kshirod Das|
|Deposited On:||19 Apr 2018 12:25|
|Last Modified:||19 Apr 2018 12:25|
|Supervisor(s):||Naik, N.Venkata Ramana|
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