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Evaluation of Impedance network Based 7-Level Switched Capacitor Multi Level Inverter for Single Phase Grid Integrated System
Abstract In this paper, a single phase impedance network based symmetrical Multi Level Inverter (MLI) integrated to grid is presented. The proposed topology requires a reduced number of controlled switches as compared to voltage source and impedance source MLI’s. The complexity, switching losses and size decreases due to reduced number of switch count. A simple Self-Voltage Balancing Circuit technique is used for maintaining equal voltage across all DC-link capacitors. Impedance network is used for boosting the voltage so as to meet the load/grid voltage. In order to synchronize the proposed inverter with grid two control loops are used. The first loop is voltage controller, which controls the output voltage of impedance network and the second loop is a current control loop, it injects the desired current into the grid. Proposed Impedance network based Switched Capacitor MLI (ISCMLI) performance in stand-alone and with grid integration is analyzed with MATLAB/SIMULINK and to validate the performance of proposed ISCMLI a proto model is developed.
Evaluation of Impedance network Based 7-Level Switched Capacitor Multi Level Inverter for Single Phase Grid Integrated System
Abstract In this paper, a single phase impedance network based symmetrical Multi Level Inverter (MLI) integrated to grid is presented. The proposed topology requires a reduced number of controlled switches as compared to voltage source and impedance source MLI’s. The complexity, switching losses and size decreases due to reduced number of switch count. A simple Self-Voltage Balancing Circuit technique is used for maintaining equal voltage across all DC-link capacitors. Impedance network is used for boosting the voltage so as to meet the load/grid voltage. In order to synchronize the proposed inverter with grid two control loops are used. The first loop is voltage controller, which controls the output voltage of impedance network and the second loop is a current control loop, it injects the desired current into the grid. Proposed Impedance network based Switched Capacitor MLI (ISCMLI) performance in stand-alone and with grid integration is analyzed with MATLAB/SIMULINK and to validate the performance of proposed ISCMLI a proto model is developed.
Evaluation of Impedance network Based 7-Level Switched Capacitor Multi Level Inverter for Single Phase Grid Integrated System
Budagavi Matam, Manjunatha (Autor:in) / Devarasetty Venkata, Ashok Kumar (Autor:in) / Mallapu, Vijaya Kumar (Autor:in)
Journal of The Institution of Engineers (India): Series B ; 99 ; 623-633
30.06.2018
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
An Asymmetrical Step-Up Multilevel Inverter Based on Switched-Capacitor Network
| DOAJ | 2019
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